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29,702
DiffuserCam: Lensless Single-exposure 3D Imaging
cs.CV
We demonstrate a compact and easy-to-build computational camera for single-shot 3D imaging. Our lensless system consists solely of a diffuser placed in front of a standard image sensor. Every point within the volumetric field-of-view projects a unique pseudorandom pattern of caustics on the sensor. By using a physical ...
computer science
29,703
Tracking Persons-of-Interest via Unsupervised Representation Adaptation
cs.CV
Multi-face tracking in unconstrained videos is a challenging problem as faces of one person often appear drastically different in multiple shots due to significant variations in scale, pose, expression, illumination, and make-up. Existing multi-target tracking methods often use low-level features which are not sufficie...
computer science
29,704
Video Denoising and Enhancement via Dynamic Video Layering
cs.CV
Video denoising refers to the problem of removing "noise" from a video sequence. Here the term "noise" is used in a broad sense to refer to any corruption or outlier or interference that is not the quantity of interest. In this work, we develop a novel approach to video denoising that is based on the idea that many noi...
computer science
29,705
Eigen-Distortions of Hierarchical Representations
cs.CV
We develop a method for comparing hierarchical image representations in terms of their ability to explain perceptual sensitivity in humans. Specifically, we utilize Fisher information to establish a model-derived prediction of sensitivity to local perturbations of an image. For a given image, we compute the eigenvector...
computer science
29,706
Detecting the Moment of Completion: Temporal Models for Localising Action Completion
cs.CV
Action completion detection is the problem of modelling the action's progression towards localising the moment of completion - when the action's goal is confidently considered achieved. In this work, we assess the ability of two temporal models, namely Hidden Markov Models (HMM) and Long-Short Term Memory (LSTM), to lo...
computer science
29,707
Human Pose Regression by Combining Indirect Part Detection and Contextual Information
cs.CV
In this paper, we propose an end-to-end trainable regression approach for human pose estimation from still images. We use the proposed Soft-argmax function to convert feature maps directly to joint coordinates, resulting in a fully differentiable framework. Our method is able to learn heat maps representations indirect...
computer science
29,708
Contrastive Learning for Image Captioning
cs.CV
Image captioning, a popular topic in computer vision, has achieved substantial progress in recent years. However, the distinctiveness of natural descriptions is often overlooked in previous work. It is closely related to the quality of captions, as distinctive captions are more likely to describe images with their uniq...
computer science
29,709
CAMREP- Concordia Action and Motion Repository
cs.CV
Action recognition, motion classification, gait analysis and synthesis are fundamental problems in a number of fields such as computer graphics, bio-mechanics and human computer interaction that generate a large body of research. This type of data is complex because it is inherently multidimensional and has multiple mo...
computer science
29,710
Bag-Level Aggregation for Multiple Instance Active Learning in Instance Classification Problems
cs.CV
A growing number of applications, e.g. video surveillance and medical image analysis, require training recognition systems from large amounts of weakly annotated data while some targeted interactions with a domain expert are allowed to improve the training process. In such cases, active learning (AL) can reduce labelin...
computer science
29,711
A Transfer-Learning Approach for Accelerated MRI using Deep Neural Networks
cs.CV
Neural network based architectures have recently been proposed for reconstruction of undersampled MR acquisitions. A deep network containing many free parameters is typically trained using a relatively large set of fully-sampled MRI data, and later used for on-line reconstruction of undersampled data. Ideally network p...
computer science
29,712
Image Matching Using SIFT, SURF, BRIEF and ORB: Performance Comparison for Distorted Images
cs.CV
Fast and robust image matching is a very important task with various applications in computer vision and robotics. In this paper, we compare the performance of three different image matching techniques, i.e., SIFT, SURF, and ORB, against different kinds of transformations and deformations such as scaling, rotation, noi...
computer science
29,713
Image Identification Using SIFT Algorithm: Performance Analysis against Different Image Deformations
cs.CV
Image identification is one of the most challenging tasks in different areas of computer vision. Scale-invariant feature transform is an algorithm to detect and describe local features in images to further use them as an image matching criteria. In this paper, the performance of the SIFT matching algorithm against vari...
computer science
29,714
Keynote: Small Neural Nets Are Beautiful: Enabling Embedded Systems with Small Deep-Neural-Network Architectures
cs.CV
Over the last five years Deep Neural Nets have offered more accurate solutions to many problems in speech recognition, and computer vision, and these solutions have surpassed a threshold of acceptability for many applications. As a result, Deep Neural Networks have supplanted other approaches to solving problems in the...
computer science
29,715
Micro-Expression Spotting: A Benchmark
cs.CV
Micro-expressions are rapid and involuntary facial expressions, which indicate the suppressed or concealed emotions. Recently, the research on automatic micro-expression (ME) spotting obtains increasing attention. ME spotting is a crucial step prior to further ME analysis tasks. The spotting results can be used as impo...
computer science
29,716
Gender and Ethnicity Classification of Iris Images using Deep Class-Encoder
cs.CV
Soft biometric modalities have shown their utility in different applications including reducing the search space significantly. This leads to improved recognition performance, reduced computation time, and faster processing of test samples. Some common soft biometric modalities are ethnicity, gender, age, hair color, i...
computer science
29,717
On Matching Skulls to Digital Face Images: A Preliminary Approach
cs.CV
Forensic application of automatically matching skull with face images is an important research area linking biometrics with practical applications in forensics. It is an opportunity for biometrics and face recognition researchers to help the law enforcement and forensic experts in giving an identity to unidentified hum...
computer science
29,718
UG^2: a Video Benchmark for Assessing the Impact of Image Restoration and Enhancement on Automatic Visual Recognition
cs.CV
Advances in image restoration and enhancement techniques have led to discussion about how such algorithmscan be applied as a pre-processing step to improve automatic visual recognition. In principle, techniques like deblurring and super-resolution should yield improvements by de-emphasizing noise and increasing signal ...
computer science
29,719
Face Sketch Matching via Coupled Deep Transform Learning
cs.CV
Face sketch to digital image matching is an important challenge of face recognition that involves matching across different domains. Current research efforts have primarily focused on extracting domain invariant representations or learning a mapping from one domain to the other. In this research, we propose a novel tra...
computer science
29,720
Does Normalization Methods Play a Role for Hyperspectral Image Classification?
cs.CV
For Hyperspectral image (HSI) datasets, each class have their salient feature and classifiers classify HSI datasets according to the class's saliency features, however, there will be different salient features when use different normalization method. In this letter, we report the effect on classifiers by different norm...
computer science
29,721
Age Group and Gender Estimation in the Wild with Deep RoR Architecture
cs.CV
Automatically predicting age group and gender from face images acquired in unconstrained conditions is an important and challenging task in many real-world applications. Nevertheless, the conventional methods with manually-designed features on in-the-wild benchmarks are unsatisfactory because of incompetency to tackle ...
computer science
29,722
Personalized Saliency and its Prediction
cs.CV
Almost all existing visual saliency models focus on predicting a universal saliency map across all observers. Yet psychology studies suggest that visual attention of different observers can vary a lot under some specific circumstances, especially when they view scenes with multiple salient objects. However, few work ex...
computer science
29,723
An automatic deep learning approach for coronary artery calcium segmentation
cs.CV
Coronary artery calcium (CAC) is a significant marker of atherosclerosis and cardiovascular events. In this work we present a system for the automatic quantification of calcium score in ECG-triggered non-contrast enhanced cardiac computed tomography (CT) images. The proposed system uses a supervised deep learning algor...
computer science
29,724
A Sequential Thinning Algorithm For Multi-Dimensional Binary Patterns
cs.CV
Thinning is the removal of contour pixels/points of connected components in an image to produce their skeleton with retained connectivity and structural properties. The output requirements of a thinning procedure often vary with application. This paper proposes a sequential algorithm that is very easy to understand and...
computer science
29,725
A Bottom Up Procedure for Text Line Segmentation of Latin Script
cs.CV
In this paper we present a bottom up procedure for segmentation of text lines written or printed in the Latin script. The proposed method uses a combination of image morphology, feature extraction and Gaussian mixture model to perform this task. The experimental results show the validity of the procedure.
computer science
29,726
Deeper, Broader and Artier Domain Generalization
cs.CV
The problem of domain generalization is to learn from multiple training domains, and extract a domain-agnostic model that can then be applied to an unseen domain. Domain generalization (DG) has a clear motivation in contexts where there are target domains with distinct characteristics, yet sparse data for training. For...
computer science
29,727
Handwritten digit string recognition by combination of residual network and RNN-CTC
cs.CV
Recurrent neural network (RNN) and connectionist temporal classification (CTC) have showed successes in many sequence labeling tasks with the strong ability of dealing with the problems where the alignment between the inputs and the target labels is unknown. Residual network is a new structure of convolutional neural n...
computer science
29,728
Island Loss for Learning Discriminative Features in Facial Expression Recognition
cs.CV
Over the past few years, Convolutional Neural Networks (CNNs) have shown promise on facial expression recognition. However, the performance degrades dramatically under real-world settings due to variations introduced by subtle facial appearance changes, head pose variations, illumination changes, and occlusions. In t...
computer science
29,729
Person Recognition in Social Media Photos
cs.CV
People nowadays share large parts of their personal lives through social media. Being able to automatically recognise people in personal photos may greatly enhance user convenience by easing photo album organisation. For human identification task, however, traditional focus of computer vision has been face recognition ...
computer science
29,730
iVQA: Inverse Visual Question Answering
cs.CV
We propose the inverse problem of Visual question answering (iVQA), and explore its suitability as a benchmark for visuo-linguistic understanding. The iVQA task is to generate a question that corresponds to a given image and answer pair. Since the answers are less informative than the questions, and the questions have ...
computer science
29,731
Real-Time Action Detection in Video Surveillance using Sub-Action Descriptor with Multi-CNN
cs.CV
When we say a person is texting, can you tell the person is walking or sitting? Emphatically, no. In order to solve this incomplete representation problem, this paper presents a sub-action descriptor for detailed action detection. The sub-action descriptor consists of three levels: the posture, the locomotion, and the ...
computer science
29,732
AdaDNNs: Adaptive Ensemble of Deep Neural Networks for Scene Text Recognition
cs.CV
Recognizing text in the wild is a really challenging task because of complex backgrounds, various illuminations and diverse distortions, even with deep neural networks (convolutional neural networks and recurrent neural networks). In the end-to-end training procedure for scene text recognition, the outputs of deep neur...
computer science
29,733
DocEmul: a Toolkit to Generate Structured Historical Documents
cs.CV
We propose a toolkit to generate structured synthetic documents emulating the actual document production process. Synthetic documents can be used to train systems to perform document analysis tasks. In our case we address the record counting task on handwritten structured collections containing a limited number of exam...
computer science
29,734
Automatic Streaming Segmentation of Stereo Video Using Bilateral Space
cs.CV
In this paper, we take advantage of binocular camera and propose an unsupervised algorithm based on semi-supervised segmentation algorithm and extracting foreground part efficiently. We creatively embed depth information into bilateral grid in the graph cut model and achieve considerable segmenting accuracy in the case...
computer science
29,735
Traffic Sign Timely Visual Recognizability Evaluation Based on 3D Measurable Point Clouds
cs.CV
The timely provision of traffic sign information to drivers is essential for the drivers to respond, to ensure safe driving, and to avoid traffic accidents in a timely manner. We proposed a timely visual recognizability quantitative evaluation method for traffic signs in large-scale transportation environments. To achi...
computer science
29,736
Joint Weakly and Semi-Supervised Deep Learning for Localization and Classification of Masses in Breast Ultrasound Images
cs.CV
We propose a framework for localization and classification of masses in breast ultrasound (BUS) images. In particular, we simultaneously use a weakly annotated dataset and a relatively small strongly annotated dataset to train a convolutional neural network detector. We have experimentally found that mass detectors tra...
computer science
29,737
DeepSolarEye: Power Loss Prediction and Weakly Supervised Soiling Localization via Fully Convolutional Networks for Solar Panels
cs.CV
The impact of soiling on solar panels is an important and well-studied problem in renewable energy sector. In this paper, we present the first convolutional neural network (CNN) based approach for solar panel soiling and defect analysis. Our approach takes an RGB image of solar panel and environmental factors as inputs...
computer science
29,738
Application of Deep Learning in Neuroradiology: Automated Detection of Basal Ganglia Hemorrhage using 2D-Convolutional Neural Networks
cs.CV
Background: Deep learning techniques have achieved high accuracy in image classification tasks, and there is interest in applicability to neuroimaging critical findings. This study evaluates the efficacy of 2D deep convolutional neural networks (DCNNs) for detecting basal ganglia (BG) hemorrhage on noncontrast head CT....
computer science
29,739
Detect to Track and Track to Detect
cs.CV
Recent approaches for high accuracy detection and tracking of object categories in video consist of complex multistage solutions that become more cumbersome each year. In this paper we propose a ConvNet architecture that jointly performs detection and tracking, solving the task in a simple and effective way. Our contri...
computer science
29,740
FFDNet: Toward a Fast and Flexible Solution for CNN based Image Denoising
cs.CV
Due to the fast inference and good performance, discriminative learning methods have been widely studied in image denoising. However, these methods mostly learn a specific model for each noise level, and require multiple models for denoising images with different noise levels. They also lack flexibility to deal with sp...
computer science
29,741
Interactive Medical Image Segmentation using Deep Learning with Image-specific Fine-tuning
cs.CV
Convolutional neural networks (CNNs) have achieved state-of-the-art performance for automatic medical image segmentation. However, they have not demonstrated sufficiently accurate and robust results for clinical use. In addition, they are limited by the lack of image-specific adaptation and the lack of generalizability...
computer science
29,742
An Innovative Salient Object Detection Using Center-Dark Channel Prior
cs.CV
Saliency detection aims to detect the most attractive objects in images, which has been widely used as a foundation for various multimedia applications. In this paper, we propose a novel salient object detection algorithm for RGB-D images using center-dark channel prior. First, we generate an initial saliency map based...
computer science
29,743
Local Radon Descriptors for Image Search
cs.CV
Radon transform and its inverse operation are important techniques in medical imaging tasks. Recently, there has been renewed interest in Radon transform for applications such as content-based medical image retrieval. However, all studies so far have used Radon transform as a global or quasi-global image descriptor by ...
computer science
29,744
Recognizing Daily Activities from Egocentric Photo-Streams
cs.CV
Wearable cameras can gather large amounts of image data that provide rich visual information about the daily activities of the wearer. Motivated by the large number of health applications that could be enabled by the automatic recognition of daily activities, such as lifestyle characterization for habit improvement, co...
computer science
29,745
On Data-Driven Saak Transform
cs.CV
Being motivated by the multilayer RECOS (REctified-COrrelations on a Sphere) transform, we develop a data-driven Saak (Subspace approximation with augmented kernels) transform in this work. The Saak transform consists of three steps: 1) building the optimal linear subspace approximation with orthonormal bases using the...
computer science
29,746
Joint Image Filtering with Deep Convolutional Networks
cs.CV
Joint image filters leverage the guidance image as a prior and transfer the structural details from the guidance image to the target image for suppressing noise or enhancing spatial resolution. Existing methods either rely on various explicit filter constructions or hand-designed objective functions, thereby making it ...
computer science
29,747
A Finite Element Computational Framework for Active Contours on Graphs
cs.CV
In this paper we present a new framework for the solution of active contour models on graphs. With the use of the Finite Element Method we generalize active contour models on graphs and reduce the problem from a partial differential equation to the solution of a sparse non-linear system. Additionally, we extend the pro...
computer science
29,748
VOIDD: automatic vessel of intervention dynamic detection in PCI procedures
cs.CV
In this article, we present the work towards improving the overall workflow of the Percutaneous Coronary Interventions (PCI) procedures by capacitating the imaging instruments to precisely monitor the steps of the procedure. In the long term, such capabilities can be used to optimize the image acquisition to reduce the...
computer science
29,749
Hierarchical Convolutional-Deconvolutional Neural Networks for Automatic Liver and Tumor Segmentation
cs.CV
Automatic segmentation of liver and its tumors is an essential step for extracting quantitative imaging biomarkers for accurate tumor detection, diagnosis, prognosis and assessment of tumor response to treatment. MICCAI 2017 Liver Tumor Segmentation Challenge (LiTS) provides a common platform for comparing different au...
computer science
29,750
Analysis of planar ornament patterns via motif asymmetry assumption and local connections
cs.CV
Planar ornaments, a.k.a. wallpapers, are regular repetitive patterns which exhibit translational symmetry in two independent directions. There are exactly $17$ distinct planar symmetry groups. We present a fully automatic method for complete analysis of planar ornaments in $13$ of these groups, specifically, the groups...
computer science
29,751
Progressive Representation Adaptation for Weakly Supervised Object Localization
cs.CV
We address the problem of weakly supervised object localization where only image-level annotations are available for training object detectors. Numerous methods have been proposed to tackle this problem through mining object proposals. However, a substantial amount of noise in object proposals causes ambiguities for le...
computer science
29,752
Hyperspectral band selection using genetic algorithm and support vector machines for early identification of charcoal rot disease in soybean
cs.CV
Charcoal rot is a fungal disease that thrives in warm dry conditions and affects the yield of soybeans and other important agronomic crops worldwide. There is a need for robust, automatic and consistent early detection and quantification of disease symptoms which are important in breeding programs for the development o...
computer science
29,753
Can the early human visual system compete with Deep Neural Networks?
cs.CV
We study and compare the human visual system and state-of-the-art deep neural networks on classification of distorted images. Different from previous works, we limit the display time to 100ms to test only the early mechanisms of the human visual system, without allowing time for any eye movements or other higher level ...
computer science
29,754
Residual Connections Encourage Iterative Inference
cs.CV
Residual networks (Resnets) have become a prominent architecture in deep learning. However, a comprehensive understanding of Resnets is still a topic of ongoing research. A recent view argues that Resnets perform iterative refinement of features. We attempt to further expose properties of this aspect. To this end, we...
computer science
29,755
Retinal Fluid Segmentation and Detection in Optical Coherence Tomography Images using Fully Convolutional Neural Network
cs.CV
As a non-invasive imaging modality, optical coherence tomography (OCT) can provide micrometer-resolution 3D images of retinal structures. Therefore it is commonly used in the diagnosis of retinal diseases associated with edema in and under the retinal layers. In this paper, a new framework is proposed for the task of f...
computer science
29,756
Multimodal and Multiscale Deep Neural Networks for the Early Diagnosis of Alzheimer's Disease using structural MR and FDG-PET images
cs.CV
Alzheimer's Disease (AD) is a progressive neurodegenerative disease. Amnestic mild cognitive impairment (MCI) is a common first symptom before the conversion to clinical impairment where the individual becomes unable to perform activities of daily living independently. Although there is currently no treatment available...
computer science
29,757
Retinal Vasculature Segmentation Using Local Saliency Maps and Generative Adversarial Networks For Image Super Resolution
cs.CV
We propose an image super resolution(ISR) method using generative adversarial networks (GANs) that takes a low resolution input fundus image and generates a high resolution super resolved (SR) image upto scaling factor of $16$. This facilitates more accurate automated image analysis, especially for small or blurred lan...
computer science
29,758
VGR-Net: A View Invariant Gait Recognition Network
cs.CV
Biometric identification systems have become immensely popular and important because of their high reliability and efficiency. However person identification at a distance, still remains a challenging problem. Gait can be seen as an essential biometric feature for human recognition and identification. It can be easily a...
computer science
29,759
WeText: Scene Text Detection under Weak Supervision
cs.CV
The requiring of large amounts of annotated training data has become a common constraint on various deep learning systems. In this paper, we propose a weakly supervised scene text detection method (WeText) that trains robust and accurate scene text detection models by learning from unannotated or weakly annotated data....
computer science
29,760
Filmy Cloud Removal on Satellite Imagery with Multispectral Conditional Generative Adversarial Nets
cs.CV
In this paper, we propose a method for cloud removal from visible light RGB satellite images by extending the conditional Generative Adversarial Networks (cGANs) from RGB images to multispectral images. Satellite images have been widely utilized for various purposes, such as natural environment monitoring (pollution, f...
computer science
29,761
Dynamic texture recognition using time-causal and time-recursive spatio-temporal receptive fields
cs.CV
This work presents a first evaluation of using spatio-temporal receptive fields from a recently proposed time-causal spatio-temporal scale-space framework as primitives for video analysis. We propose a new family of video descriptors based on regional statistics of spatio-temporal receptive field responses and evaluate...
computer science
29,762
Object Classification in Images of Neoclassical Artifacts Using Deep Learning
cs.CV
In this paper, we report on our efforts for using Deep Learning for classifying artifacts and their features in digital visuals as a part of the Neoclassica framework. It was conceived to provide scholars with new methods for analyzing and classifying artifacts and aesthetic forms from the era of Classicism. The framew...
computer science
29,763
Skin Lesion Analysis Toward Melanoma Detection: A Challenge at the 2017 International Symposium on Biomedical Imaging (ISBI), Hosted by the International Skin Imaging Collaboration (ISIC)
cs.CV
This article describes the design, implementation, and results of the latest installment of the dermoscopic image analysis benchmark challenge. The goal is to support research and development of algorithms for automated diagnosis of melanoma, the most lethal skin cancer. The challenge was divided into 3 tasks: lesion s...
computer science
29,764
Improving Shadow Suppression for Illumination Robust Face Recognition
cs.CV
2D face analysis techniques, such as face landmarking, face recognition and face verification, are reasonably dependent on illumination conditions which are usually uncontrolled and unpredictable in the real world. An illumination robust preprocessing method thus remains a significant challenge in reliable face analysi...
computer science
29,765
An adaptive thresholding approach for automatic optic disk segmentation
cs.CV
Optic disk segmentation is a prerequisite step in automatic retinal screening systems. In this paper, we propose an algorithm for optic disk segmentation based on a local adaptive thresholding method. Location of the optic disk is validated by intensity and average vessel width of retinal images. Then an adaptive thres...
computer science
29,766
Video Classification With CNNs: Using The Codec As A Spatio-Temporal Activity Sensor
cs.CV
We investigate video classification via a two-stream convolutional neural network (CNN) design that directly ingests information extracted from compressed video bitstreams. Our approach begins with the observation that all modern video codecs divide the input frames into macroblocks (MBs). We demonstrate that selective...
computer science
29,767
Hierarchical semantic segmentation using modular convolutional neural networks
cs.CV
Image recognition tasks that involve identifying parts of an object or the contents of a vessel can be viewed as a hierarchical problem, which can be solved by initial recognition of the main object, followed by recognition of its parts or contents. To achieve such modular recognition, it is necessary to use the output...
computer science
29,768
GHCLNet: A Generalized Hierarchically tuned Contact Lens detection Network
cs.CV
Iris serves as one of the best biometric modality owing to its complex, unique and stable structure. However, it can still be spoofed using fabricated eyeballs and contact lens. Accurate identification of contact lens is must for reliable performance of any biometric authentication system based on this modality. In thi...
computer science
29,769
BrainSegNet : A Segmentation Network for Human Brain Fiber Tractography Data into Anatomically Meaningful Clusters
cs.CV
The segregation of brain fiber tractography data into distinct and anatomically meaningful clusters can help to comprehend the complex brain structure and early investigation and management of various neural disorders. We propose a novel stacked bidirectional long short-term memory(LSTM) based segmentation network, (Br...
computer science
29,770
Co-saliency Detection for RGBD Images Based on Multi-constraint Feature Matching and Cross Label Propagation
cs.CV
Co-saliency detection aims at extracting the common salient regions from an image group containing two or more relevant images. It is a newly emerging topic in computer vision community. Different from the most existing co-saliency methods focusing on RGB images, this paper proposes a novel co-saliency detection model ...
computer science
29,771
Saliency Detection for Stereoscopic Images Based on Depth Confidence Analysis and Multiple Cues Fusion
cs.CV
Stereoscopic perception is an important part of human visual system that allows the brain to perceive depth. However, depth information has not been well explored in existing saliency detection models. In this letter, a novel saliency detection method for stereoscopic images is proposed. Firstly, we propose a measure t...
computer science
29,772
Microaneurysm Detection in Fundus Images Using a Two-step Convolutional Neural Networks
cs.CV
Diabetic Retinopathy (DR) is the prominent cause of blindness in the world. The early treatment of DR can be conducted from detection of microaneurysms (MA) which is reddish spots in retina images. Automated microaneurysm detection can be a helpful system for ophthalmologists for detection of MA. In this paper, deep le...
computer science
29,773
K-means clustering for efficient and robust registration of multi-view point sets
cs.CV
Efficiency and robustness are the important performance for the registration of multi-view point sets. To address these two issues, this paper casts the multi-view registration into a clustering problem, which can be solved by the extended K-means clustering algorithm. Before the clustering, all the centroids are unifo...
computer science
29,774
An Adaptive Framework for Missing Depth Inference Using Joint Bilateral Filter
cs.CV
Depth imaging has largely focused on sensor and intrinsics properties. However, the accuracy of acquire pixel is largely dependent on the capture. We propose a new depth estimation and approximation algorithm which takes an arbitrary 3D point cloud as input, with potentially complex geometric structures, and generates ...
computer science
29,775
Deep Learning for Rapid Sparse MR Fingerprinting Reconstruction
cs.CV
PURPOSE: Demonstrate a novel fast method for reconstruction of multi-dimensional MR Fingerprinting (MRF) data using Deep Learning methods. METHODS: A neural network (NN) is defined using the TensorFlow framework and trained on simulated MRF data computed using the Bloch equations. The accuracy of the NN reconstructio...
computer science
29,776
Towards Automatic Abdominal Multi-Organ Segmentation in Dual Energy CT using Cascaded 3D Fully Convolutional Network
cs.CV
Automatic multi-organ segmentation of the dual energy computed tomography (DECT) data can be beneficial for biomedical research and clinical applications. However, it is a challenging task. Recent advances in deep learning showed the feasibility to use 3-D fully convolutional networks (FCN) for voxel-wise dense predict...
computer science
29,777
Vehicle classification based on convolutional networks applied to FM-CW radar signals
cs.CV
This paper investigates the processing of Frequency Modulated-Continuos Wave (FM-CW) radar signals for vehicle classification. In the last years deep learning has gained interest in several scientific fields and signal processing is not one exception. In this work we address the recognition of the vehicle category usin...
computer science
29,778
Convolutional Neural Networks for Histopathology Image Classification: Training vs. Using Pre-Trained Networks
cs.CV
We explore the problem of classification within a medical image data-set based on a feature vector extracted from the deepest layer of pre-trained Convolution Neural Networks. We have used feature vectors from several pre-trained structures, including networks with/without transfer learning to evaluate the performance ...
computer science
29,779
Isointense Infant Brain Segmentation with a Hyper-dense Connected Convolutional Neural Network
cs.CV
Neonatal brain segmentation in magnetic resonance (MR) is a challenging problem due to poor image quality and low contrast between white and gray matter regions. Most existing approaches for this problem are based on multi-atlas label fusion strategies, which are time-consuming and sensitive to registration errors. As ...
computer science
29,780
Volumetric Data Exploration with Machine Learning-Aided Visualization in Neutron Science
cs.CV
Recent advancements in neutron and x-ray sources, instrumentation and data collection modes have significantly increased the experimental data size (which could easily contain $10^{8}$-$10^{10}$ points), so that conventional volumetric visualization approaches become inefficient for both still imaging and interactive O...
computer science
29,781
Face Transfer with Generative Adversarial Network
cs.CV
Face transfer animates the facial performances of the character in the target video by a source actor. Traditional methods are typically based on face modeling. We propose an end-to-end face transfer method based on Generative Adversarial Network. Specifically, we leverage CycleGAN to generate the face image of the tar...
computer science
29,782
Large-Scale 3D Shape Reconstruction and Segmentation from ShapeNet Core55
cs.CV
We introduce a large-scale 3D shape understanding benchmark using data and annotation from ShapeNet 3D object database. The benchmark consists of two tasks: part-level segmentation of 3D shapes and 3D reconstruction from single view images. Ten teams have participated in the challenge and the best performing teams have...
computer science
29,783
Scalable Dense Monocular Surface Reconstruction
cs.CV
This paper reports on a novel template-free monocular non-rigid surface reconstruction approach. Existing techniques using motion and deformation cues rely on multiple prior assumptions, are often computationally expensive and do not perform equally well across the variety of data sets. In contrast, the proposed Scalab...
computer science
29,784
Combining LiDAR Space Clustering and Convolutional Neural Networks for Pedestrian Detection
cs.CV
Pedestrian detection is an important component for safety of autonomous vehicles, as well as for traffic and street surveillance. There are extensive benchmarks on this topic and it has been shown to be a challenging problem when applied on real use-case scenarios. In purely image-based pedestrian detection approaches,...
computer science
29,785
Learning to Learn Image Classifiers with Informative Visual Analogy
cs.CV
In recent years, we witnessed a huge success of Convolutional Neural Networks on the task of the image classification. However, these models are notoriously data hungry and require tons of training images to learn the parameters. In contrast, people are far better learner who can learn a new concept very fast with only...
computer science
29,786
Single Shot Temporal Action Detection
cs.CV
Temporal action detection is a very important yet challenging problem, since videos in real applications are usually long, untrimmed and contain multiple action instances. This problem requires not only recognizing action categories but also detecting start time and end time of each action instance. Many state-of-the-a...
computer science
29,787
Procedural Modeling and Physically Based Rendering for Synthetic Data Generation in Automotive Applications
cs.CV
We present an overview and evaluation of a new, systematic approach for generation of highly realistic, annotated synthetic data for training of deep neural networks in computer vision tasks. The main contribution is a procedural world modeling approach enabling high variability coupled with physically accurate image s...
computer science
29,788
A Deep Learning Approach for Reconstruction Filter Kernel Discretization
cs.CV
In this paper, we present substantial evidence that a deep neural network will intrinsically learn the appropriate way to discretize the ideal continuous reconstruction filter. Currently, the Ram-Lak filter or heuristic filters which impose different noise assumptions are used for filtered back-projection. All of these...
computer science
29,789
VPGNet: Vanishing Point Guided Network for Lane and Road Marking Detection and Recognition
cs.CV
In this paper, we propose a unified end-to-end trainable multi-task network that jointly handles lane and road marking detection and recognition that is guided by a vanishing point under adverse weather conditions. We tackle rainy and low illumination conditions, which have not been extensively studied until now due to...
computer science
29,790
Superpixels Based Marker Tracking Vs. Hue Thresholding In Rodent Biomechanics Application
cs.CV
Examining locomotion has improved our basic understanding of motor control and aided in treating motor impairment. Mice and rats are premier models of human disease and increasingly the model systems of choice for basic neuroscience. High frame rates (250 Hz) are needed to quantify the kinematics of these running roden...
computer science
29,791
Do Convolutional Neural Networks Learn Class Hierarchy?
cs.CV
Convolutional Neural Networks (CNNs) currently achieve state-of-the-art accuracy in image classification. With a growing number of classes, the accuracy usually drops as the possibilities of confusion increase. Interestingly, the class confusion patterns follow a hierarchical structure over the classes. We present visu...
computer science
29,792
Scene Parsing with Global Context Embedding
cs.CV
We present a scene parsing method that utilizes global context information based on both the parametric and non- parametric models. Compared to previous methods that only exploit the local relationship between objects, we train a context network based on scene similarities to generate feature representations for global...
computer science
29,793
Multi-focus image fusion using VOL and EOL in DCT domain
cs.CV
The purpose of multi-focus image fusion is gathering the essential information and the focused parts from the input multi-focus images into a single image. These multi-focused images are captured with different depths of focus of cameras. Multi-focus image fusion is very time-saving and appropriate in discrete cosine t...
computer science
29,794
Pose-based Deep Gait Recognition
cs.CV
Human gait or walking manner is a biometric feature that allows identification of a person when other biometric features such as the face or iris are not visible. In this paper, we present a new pose-based convolutional neural network model for gait recognition. Unlike many methods that consider the full-height silhoue...
computer science
29,795
Learning Deep Context-aware Features over Body and Latent Parts for Person Re-identification
cs.CV
Person Re-identification (ReID) is to identify the same person across different cameras. It is a challenging task due to the large variations in person pose, occlusion, background clutter, etc How to extract powerful features is a fundamental problem in ReID and is still an open problem today. In this paper, we design ...
computer science
29,796
Cell Segmentation in 3D Confocal Images using Supervoxel Merge-Forests with CNN-based Hypothesis Selection
cs.CV
Automated segmentation approaches are crucial to quantitatively analyze large-scale 3D microscopy images. Particularly in deep tissue regions, automatic methods still fail to provide error-free segmentations. To improve the segmentation quality throughout imaged samples, we present a new supervoxel-based 3D segmentatio...
computer science
29,797
The Robust Reading Competition Annotation and Evaluation Platform
cs.CV
The ICDAR Robust Reading Competition (RRC), initiated in 2003 and re-established in 2011, has become the de-facto evaluation standard for the international community. Concurrent with its second incarnation in 2011, a continuous effort started to develop an online framework to facilitate the hosting and management of ...
computer science
29,798
Simultaneous Recognition and Pose Estimation of Instruments in Minimally Invasive Surgery
cs.CV
Detection of surgical instruments plays a key role in ensuring patient safety in minimally invasive surgery. In this paper, we present a novel method for 2D vision-based recognition and pose estimation of surgical instruments that generalizes to different surgical applications. At its core, we propose a novel scene mod...
computer science
29,799
Dropout Sampling for Robust Object Detection in Open-Set Conditions
cs.CV
Dropout Variational Inference, or Dropout Sampling, has been recently proposed as an approximation technique for Bayesian Deep Learning and evaluated for image classification and regression tasks. This paper investigates the utility of Dropout Sampling for object detection for the first time. We demonstrate how label u...
computer science
29,800
Enhancing the Performance of Convolutional Neural Networks on Quality Degraded Datasets
cs.CV
Despite the appeal of deep neural networks that largely replace the traditional handmade filters, they still suffer from isolated cases that cannot be properly handled only by the training of convolutional filters. Abnormal factors, including real-world noise, blur, or other quality degradations, ruin the output of a n...
computer science
29,801
Identifying Mild Traumatic Brain Injury Patients From MR Images Using Bag of Visual Words
cs.CV
Mild traumatic brain injury (mTBI) is a growing public health problem with an estimated incidence of one million people annually in US. Neurocognitive tests are used to both assess the patient condition and to monitor the patient progress. This work aims to directly use MR images taken shortly after injury to detect wh...
computer science