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24,002
Template Matching with Deformable Diversity Similarity
cs.CV
We propose a novel measure for template matching named Deformable Diversity Similarity -- based on the diversity of feature matches between a target image window and the template. We rely on both local appearance and geometric information that jointly lead to a powerful approach for matching. Our key contribution is a ...
computer science
24,003
A Functional Regression approach to Facial Landmark Tracking
cs.CV
Linear regression is a fundamental building block in many face detection and tracking algorithms, typically used to predict shape displacements from image features through a linear mapping. This paper presents a Functional Regression solution to the least squares problem, which we coin Continuous Regression, resulting ...
computer science
24,004
Embedded Line Scan Image Sensors: The Low Cost Alternative for High Speed Imaging
cs.CV
In this paper we propose a low-cost high-speed imaging line scan system. We replace an expensive industrial line scan camera and illumination with a custom-built set-up of cheap off-the-shelf components, yielding a measurement system with comparative quality while costing about 20 times less. We use a low-cost linear (...
computer science
24,005
Process Monitoring of Extrusion Based 3D Printing via Laser Scanning
cs.CV
Extrusion based 3D Printing (E3DP) is an Additive Manufacturing (AM) technique that extrudes thermoplastic polymer in order to build up components using a layerwise approach. Hereby, AM typically requires long production times in comparison to mass production processes such as Injection Molding. Failures during the AM ...
computer science
24,006
Exploring the potential of combining time of flight and thermal infrared cameras for person detection
cs.CV
Combining new, low-cost thermal infrared and time-of-flight range sensors provides new opportunities. In this position paper we explore the possibilities of combining these sensors and using their fused data for person detection. The proposed calibration approach for this sensor combination differs from the traditional...
computer science
24,007
Global Hypothesis Generation for 6D Object Pose Estimation
cs.CV
This paper addresses the task of estimating the 6D pose of a known 3D object from a single RGB-D image. Most modern approaches solve this task in three steps: i) Compute local features; ii) Generate a pool of pose-hypotheses; iii) Select and refine a pose from the pool. This work focuses on the second step. While all e...
computer science
24,008
Pano2Vid: Automatic Cinematography for Watching 360$^{\circ}$ Videos
cs.CV
We introduce the novel task of Pano2Vid $-$ automatic cinematography in panoramic 360$^{\circ}$ videos. Given a 360$^{\circ}$ video, the goal is to direct an imaginary camera to virtually capture natural-looking normal field-of-view (NFOV) video. By selecting "where to look" within the panorama at each time step, Pano2...
computer science
24,009
Differential Angular Imaging for Material Recognition
cs.CV
Material recognition for real-world outdoor surfaces has become increasingly important for computer vision to support its operation "in the wild." Computational surface modeling that underlies material recognition has transitioned from reflectance modeling using in-lab controlled radiometric measurements to image-based...
computer science
24,010
Automatic Detection of ADHD and ASD from Expressive Behaviour in RGBD Data
cs.CV
Attention Deficit Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) are neurodevelopmental conditions which impact on a significant number of children and adults. Currently, the diagnosis of such disorders is done by experts who employ standard questionnaires and look for certain behavioural markers thro...
computer science
24,011
DeMoN: Depth and Motion Network for Learning Monocular Stereo
cs.CV
In this paper we formulate structure from motion as a learning problem. We train a convolutional network end-to-end to compute depth and camera motion from successive, unconstrained image pairs. The architecture is composed of multiple stacked encoder-decoder networks, the core part being an iterative network that is a...
computer science
24,012
Research on the Multiple Feature Fusion Image Retrieval Algorithm based on Texture Feature and Rough Set Theory
cs.CV
Recently, we have witnessed the explosive growth of images with complex information and content. In order to effectively and precisely retrieve desired images from a large-scale image database with low time-consuming, we propose the multiple feature fusion image retrieval algorithm based on the texture feature and roug...
computer science
24,013
Complex Matrix Factorization for Face Recognition
cs.CV
This work developed novel complex matrix factorization methods for face recognition; the methods were complex matrix factorization (CMF), sparse complex matrix factorization (SpaCMF), and graph complex matrix factorization (GraCMF). After real-valued data are transformed into a complex field, the complex-valued matrix ...
computer science
24,014
An Efficient Algorithm for the Piecewise-Smooth Model with Approximately Explicit Solutions
cs.CV
This paper presents an efficient approach to image segmentation that approximates the piecewise-smooth (PS) functional in [12] with explicit solutions. By rendering some rational constraints on the initial conditions and the final solutions of the PS functional, we propose two novel formulations which can be approximat...
computer science
24,015
Contextual Visual Similarity
cs.CV
Measuring visual similarity is critical for image understanding. But what makes two images similar? Most existing work on visual similarity assumes that images are similar because they contain the same object instance or category. However, the reason why images are similar is much more complex. For example, from the pe...
computer science
24,016
Query-adaptive Image Retrieval by Deep Weighted Hashing
cs.CV
Hashing methods have attracted much attention for large scale image retrieval. Some deep hashing methods have achieved promising results by taking advantage of the strong representation power of deep networks recently. However, existing deep hashing methods treat all hash bits equally. On one hand, a large number of im...
computer science
24,017
AGA: Attribute Guided Augmentation
cs.CV
We consider the problem of data augmentation, i.e., generating artificial samples to extend a given corpus of training data. Specifically, we propose attributed-guided augmentation (AGA) which learns a mapping that allows to synthesize data such that an attribute of a synthesized sample is at a desired value or strengt...
computer science
24,018
Classification of Neurological Gait Disorders Using Multi-task Feature Learning
cs.CV
As our population ages, neurological impairments and degeneration of the musculoskeletal system yield gait abnormalities, which can significantly reduce quality of life. Gait rehabilitative therapy has been widely adopted to help patients maximize community participation and living independence. To further improve the ...
computer science
24,019
Filter sharing: Efficient learning of parameters for volumetric convolutions
cs.CV
Typical convolutional neural networks (CNNs) have several millions of parameters and require a large amount of annotated data to train them. In medical applications where training data is hard to come by, these sophisticated machine learning models are difficult to train. In this paper, we propose a method to reduce th...
computer science
24,020
From Motion Blur to Motion Flow: a Deep Learning Solution for Removing Heterogeneous Motion Blur
cs.CV
Removing pixel-wise heterogeneous motion blur is challenging due to the ill-posed nature of the problem. The predominant solution is to estimate the blur kernel by adding a prior, but the extensive literature on the subject indicates the difficulty in identifying a prior which is suitably informative, and general. Rath...
computer science
24,021
Scene Flow Estimation: A Survey
cs.CV
This paper is the first to review the scene flow estimation field, which analyzes and compares methods, technical challenges, evaluation methodologies and performance of scene flow estimation. Existing algorithms are categorized in terms of scene representation, data source, and calculation scheme, and the pros and con...
computer science
24,022
Progressive Tree-like Curvilinear Structure Reconstruction with Structured Ranking Learning and Graph Algorithm
cs.CV
We propose a novel tree-like curvilinear structure reconstruction algorithm based on supervised learning and graph theory. In this work we analyze image patches to obtain the local major orientations and the rankings that correspond to the curvilinear structure. To extract local curvilinear features, we compute oriente...
computer science
24,023
Learning Video Object Segmentation from Static Images
cs.CV
Inspired by recent advances of deep learning in instance segmentation and object tracking, we introduce video object segmentation problem as a concept of guided instance segmentation. Our model proceeds on a per-frame basis, guided by the output of the previous frame towards the object of interest in the next frame. We...
computer science
24,024
FCNs in the Wild: Pixel-level Adversarial and Constraint-based Adaptation
cs.CV
Fully convolutional models for dense prediction have proven successful for a wide range of visual tasks. Such models perform well in a supervised setting, but performance can be surprisingly poor under domain shifts that appear mild to a human observer. For example, training on one city and testing on another in a diff...
computer science
24,025
Domain knowledge assisted cyst segmentation in OCT retinal images
cs.CV
3D imaging modalities are becoming increasingly popular and relevant in retinal imaging owing to their effectiveness in highlighting structures in sub-retinal layers. OCT is one such modality which has great importance in the context of analysis of cystoid structures in subretinal layers. Signal to noise ratio(SNR) of ...
computer science
24,026
Deep Supervision with Shape Concepts for Occlusion-Aware 3D Object Parsing
cs.CV
Monocular 3D object parsing is highly desirable in various scenarios including occlusion reasoning and holistic scene interpretation. We present a deep convolutional neural network (CNN) architecture to localize semantic parts in 2D image and 3D space while inferring their visibility states, given a single RGB image. O...
computer science
24,027
Predicting Ground-Level Scene Layout from Aerial Imagery
cs.CV
We introduce a novel strategy for learning to extract semantically meaningful features from aerial imagery. Instead of manually labeling the aerial imagery, we propose to predict (noisy) semantic features automatically extracted from co-located ground imagery. Our network architecture takes an aerial image as input, ex...
computer science
24,028
Joint Hand Detection and Rotation Estimation by Using CNN
cs.CV
Hand detection is essential for many hand related tasks, e.g. parsing hand pose, understanding gesture, which are extremely useful for robotics and human-computer interaction. However, hand detection in uncontrolled environments is challenging due to the flexibility of wrist joint and cluttered background. We propose a...
computer science
24,029
A Maximum A Posteriori Estimation Framework for Robust High Dynamic Range Video Synthesis
cs.CV
High dynamic range (HDR) image synthesis from multiple low dynamic range (LDR) exposures continues to be actively researched. The extension to HDR video synthesis is a topic of significant current interest due to potential cost benefits. For HDR video, a stiff practical challenge presents itself in the form of accurate...
computer science
24,030
Feedback Neural Network for Weakly Supervised Geo-Semantic Segmentation
cs.CV
Learning from weakly-supervised data is one of the main challenges in machine learning and computer vision, especially for tasks such as image semantic segmentation where labeling is extremely expensive and subjective. In this paper, we propose a novel neural network architecture to perform weakly-supervised learning b...
computer science
24,031
Deep TEN: Texture Encoding Network
cs.CV
We propose a Deep Texture Encoding Network (Deep-TEN) with a novel Encoding Layer integrated on top of convolutional layers, which ports the entire dictionary learning and encoding pipeline into a single model. Current methods build from distinct components, using standard encoders with separate off-the-shelf features ...
computer science
24,032
Exploiting 2D Floorplan for Building-scale Panorama RGBD Alignment
cs.CV
This paper presents a novel algorithm that utilizes a 2D floorplan to align panorama RGBD scans. While effective panorama RGBD alignment techniques exist, such a system requires extremely dense RGBD image sampling. Our approach can significantly reduce the number of necessary scans with the aid of a floorplan image. We...
computer science
24,033
Fast Fourier single-pixel imaging using binary illumination
cs.CV
Fourier single-pixel imaging (FSI) has proven capable of reconstructing high-quality two-dimensional and three-dimensional images. The utilization of the sparsity of natural images in Fourier domain allows high-resolution images to be reconstructed from far fewer measurements than effective image pixels. However, apply...
computer science
24,034
Gesture-based Bootstrapping for Egocentric Hand Segmentation
cs.CV
Accurately identifying hands in images is a key sub-task for human activity understanding with wearable first-person point-of-view cameras. Traditional hand segmentation approaches rely on a large corpus of manually labeled data to generate robust hand detectors. However, these approaches still face challenges as the a...
computer science
24,035
Facial Expression Recognition using Convolutional Neural Networks: State of the Art
cs.CV
The ability to recognize facial expressions automatically enables novel applications in human-computer interaction and other areas. Consequently, there has been active research in this field, with several recent works utilizing Convolutional Neural Networks (CNNs) for feature extraction and inference. These works diffe...
computer science
24,036
ActionFlowNet: Learning Motion Representation for Action Recognition
cs.CV
Even with the recent advances in convolutional neural networks (CNN) in various visual recognition tasks, the state-of-the-art action recognition system still relies on hand crafted motion feature such as optical flow to achieve the best performance. We propose a multitask learning model ActionFlowNet to train a single...
computer science
24,037
Following Gaze Across Views
cs.CV
Following the gaze of people inside videos is an important signal for understanding people and their actions. In this paper, we present an approach for following gaze across views by predicting where a particular person is looking throughout a scene. We collect VideoGaze, a new dataset which we use as a benchmark to bo...
computer science
24,038
Boundary-aware Instance Segmentation
cs.CV
We address the problem of instance-level semantic segmentation, which aims at jointly detecting, segmenting and classifying every individual object in an image. In this context, existing methods typically propose candidate objects, usually as bounding boxes, and directly predict a binary mask within each such proposal....
computer science
24,039
Understanding and Mapping Natural Beauty
cs.CV
While natural beauty is often considered a subjective property of images, in this paper, we take an objective approach and provide methods for quantifying and predicting the scenicness of an image. Using a dataset containing hundreds of thousands of outdoor images captured throughout Great Britain with crowdsourced rat...
computer science
24,040
Feature Pyramid Networks for Object Detection
cs.CV
Feature pyramids are a basic component in recognition systems for detecting objects at different scales. But recent deep learning object detectors have avoided pyramid representations, in part because they are compute and memory intensive. In this paper, we exploit the inherent multi-scale, pyramidal hierarchy of deep ...
computer science
24,041
Panoptic Studio: A Massively Multiview System for Social Interaction Capture
cs.CV
We present an approach to capture the 3D motion of a group of people engaged in a social interaction. The core challenges in capturing social interactions are: (1) occlusion is functional and frequent; (2) subtle motion needs to be measured over a space large enough to host a social group; (3) human appearance and conf...
computer science
24,042
Automatic Lymphocyte Detection in H&E Images with Deep Neural Networks
cs.CV
Automatic detection of lymphocyte in H&E images is a necessary first step in lots of tissue image analysis algorithms. An accurate and robust automated lymphocyte detection approach is of great importance in both computer science and clinical studies. Most of the existing approaches for lymphocyte detection are based o...
computer science
24,043
Co-localization with Category-Consistent CNN Features and Geodesic Distance Propagation
cs.CV
Co-localization is the problem of localizing objects of the same class using only the set of images that contain them. This is a challenging task because the object detector must be built without negative examples that can lead to more informative supervision signals. The main idea of our method is to cluster the featu...
computer science
24,044
Towards an Automated Image De-fencing Algorithm Using Sparsity
cs.CV
Conventional approaches to image de-fencing suffer from non-robust fence detection and are limited to processing images of static scenes. In this position paper, we propose an automatic de-fencing algorithm for images of dynamic scenes. We divide the problem of image de-fencing into the tasks of automated fence detecti...
computer science
24,045
A Novel Motion Detection Method Resistant to Severe Illumination Changes
cs.CV
Recently, there has been a considerable attention given to the motion detection problem due to the explosive growth of its applications in video analysis and surveillance systems. While the previous approaches can produce good results, an accurate detection of motion remains a challenging task due to the difficulties r...
computer science
24,046
On Choosing Training and Testing Data for Supervised Algorithms in Ground Penetrating Radar Data for Buried Threat Detection
cs.CV
Ground penetrating radar (GPR) is one of the most popular and successful sensing modalities that has been investigated for landmine and subsurface threat detection. Many of the detection algorithms applied to this task are supervised and therefore require labeled examples of target and non-target data for training. Tra...
computer science
24,047
An Attention-Driven Approach of No-Reference Image Quality Assessment
cs.CV
In this paper, we present a novel method of no-reference image quality assessment (NR-IQA), which is to predict the perceptual quality score of a given image without using any reference image. The proposed method harnesses three functions (i) the visual attention mechanism, which affects many aspects of visual percepti...
computer science
24,048
PIGMIL: Positive Instance Detection via Graph Updating for Multiple Instance Learning
cs.CV
Positive instance detection, especially for these in positive bags (true positive instances, TPIs), plays a key role for multiple instance learning (MIL) arising from a specific classification problem only provided with bag (a set of instances) label information. However, most previous MIL methods on this issue ignore ...
computer science
24,049
Text-guided Attention Model for Image Captioning
cs.CV
Visual attention plays an important role to understand images and demonstrates its effectiveness in generating natural language descriptions of images. On the other hand, recent studies show that language associated with an image can steer visual attention in the scene during our cognitive process. Inspired by this, we...
computer science
24,050
A Binary Convolutional Encoder-decoder Network for Real-time Natural Scene Text Processing
cs.CV
In this paper, we develop a binary convolutional encoder-decoder network (B-CEDNet) for natural scene text processing (NSTP). It converts a text image to a class-distinguished salience map that reveals the categorical, spatial and morphological information of characters. The existing solutions are either memory consumi...
computer science
24,051
COCO-Stuff: Thing and Stuff Classes in Context
cs.CV
Semantic classes can be either things (objects with a well-defined shape, e.g. car, person) or stuff (amorphous background regions, e.g. grass, sky). While lots of classification and detection works focus on thing classes, less attention has been given to stuff classes. Nonetheless, stuff classes are important as they ...
computer science
24,052
Hybrid Learning of Optical Flow and Next Frame Prediction to Boost Optical Flow in the Wild
cs.CV
CNN-based optical flow estimation has attracted attention recently, mainly due to its impressively high frame rates. These networks perform well on synthetic datasets, but they are still far behind the classical methods in real-world videos. This is because there is no ground truth optical flow for training these netwo...
computer science
24,053
PoseAgent: Budget-Constrained 6D Object Pose Estimation via Reinforcement Learning
cs.CV
State-of-the-art computer vision algorithms often achieve efficiency by making discrete choices about which hypotheses to explore next. This allows allocation of computational resources to promising candidates, however, such decisions are non-differentiable. As a result, these algorithms are hard to train in an end-to-...
computer science
24,054
Deep Supervised Hashing with Triplet Labels
cs.CV
Hashing is one of the most popular and powerful approximate nearest neighbor search techniques for large-scale image retrieval. Most traditional hashing methods first represent images as off-the-shelf visual features and then produce hashing codes in a separate stage. However, off-the-shelf visual features may not be o...
computer science
24,055
3D fully convolutional networks for subcortical segmentation in MRI: A large-scale study
cs.CV
This study investigates a 3D and fully convolutional neural network (CNN) for subcortical brain structure segmentation in MRI. 3D CNN architectures have been generally avoided due to their computational and memory requirements during inference. We address the problem via small kernels, allowing deeper architectures. We...
computer science
24,056
Paying More Attention to Attention: Improving the Performance of Convolutional Neural Networks via Attention Transfer
cs.CV
Attention plays a critical role in human visual experience. Furthermore, it has recently been demonstrated that attention can also play an important role in the context of applying artificial neural networks to a variety of tasks from fields such as computer vision and NLP. In this work we show that, by properly defini...
computer science
24,057
Neural Networks with Manifold Learning for Diabetic Retinopathy Detection
cs.CV
Widespread outreach programs using remote retinal imaging have proven to decrease the risk from diabetic retinopathy, the leading cause of blindness in the US. However, this process still requires manual verification of image quality and grading of images for level of disease by a trained human grader and will continue...
computer science
24,058
Deep Convolutional Poses for Human Interaction Recognition in Monocular Videos
cs.CV
Human interaction recognition is a challenging problem in computer vision and has been researched over the years due to its important applications. With the development of deep models for the human pose estimation problem, this work aims to verify the effectiveness of using the human pose in order to recognize the huma...
computer science
24,059
A Fast Keypoint Based Hybrid Method for Copy Move Forgery Detection
cs.CV
Copy move forgery detection in digital images has become a very popular research topic in the area of image forensics. Due to the availability of sophisticated image editing tools and ever increasing hardware capabilities, it has become an easy task to manipulate the digital images. Passive forgery detection techniques...
computer science
24,060
A Video-Based Method for Objectively Rating Ataxia
cs.CV
For many movement disorders, such as Parkinson's disease and ataxia, disease progression is visually assessed by a clinician using a numerical disease rating scale. These tests are subjective, time-consuming, and must be administered by a professional. This can be problematic where specialists are not available, or whe...
computer science
24,061
Spatial Pyramid Convolutional Neural Network for Social Event Detection in Static Image
cs.CV
Social event detection in a static image is a very challenging problem and it's very useful for internet of things applications including automatic photo organization, ads recommender system, or image captioning. Several publications show that variety of objects, scene, and people can be very ambiguous for the system t...
computer science
24,062
Automated Inference on Sociopsychological Impressions of Attractive Female Faces
cs.CV
This article is a sequel to our earlier work [25]. The main objective of our research is to explore the potential of supervised machine learning in face-induced social computing and cognition, riding on the momentum of much heralded successes of face processing, analysis and recognition on the tasks of biometric-based ...
computer science
24,063
Compressive Image Recovery Using Recurrent Generative Model
cs.CV
Reconstruction of signals from compressively sensed measurements is an ill-posed problem. In this paper, we leverage the recurrent generative model, RIDE, as an image prior for compressive image reconstruction. Recurrent networks can model long-range dependencies in images and hence are suitable to handle global multip...
computer science
24,064
How do people explore virtual environments?
cs.CV
Understanding how people explore immersive virtual environments is crucial for many applications, such as designing virtual reality (VR) content, developing new compression algorithms, or learning computational models of saliency or visual attention. Whereas a body of recent work has focused on modeling saliency in des...
computer science
24,065
Finding Tiny Faces
cs.CV
Though tremendous strides have been made in object recognition, one of the remaining open challenges is detecting small objects. We explore three aspects of the problem in the context of finding small faces: the role of scale invariance, image resolution, and contextual reasoning. While most recognition approaches aim ...
computer science
24,066
Analysis of proposed PDE-based underwater image enhancement algorithms
cs.CV
This report describes the experimental analysis of proposed underwater image enhancement algorithms based on partial differential equations (PDEs). The algorithms perform simultaneous smoothing and enhancement due to the combination of both processes within the PDE-formulation. The framework enables the incorporation o...
computer science
24,067
Single Image Action Recognition using Semantic Body Part Actions
cs.CV
In this paper, we propose a novel single image action recognition algorithm which is based on the idea of semantic body part actions. Unlike existing bottom up methods, we argue that the human action is a combination of meaningful body part actions. In detail, we divide human body into five parts: head, torso, arms, ha...
computer science
24,068
The Mehler-Fock Transform and some Applications in Texture Analysis and Color Processing
cs.CV
Many stochastic processes are defined on special geometrical objects like spheres and cones. We describe how tools from harmonic analysis, i.e. Fourier analysis on groups, can be used to investigate probability density functions (pdfs) on groups and homogeneous spaces. We consider the special case of the Lorentz group ...
computer science
24,069
UnrealStereo: A Synthetic Dataset for Analyzing Stereo Vision
cs.CV
Stereo algorithm is important for robotics applications, such as quadcopter and autonomous driving. It needs to be robust enough to handle images of challenging conditions, such as raining or strong lighting. Textureless and specular regions of these images make feature matching difficult and smoothness assumption inva...
computer science
24,070
Super-resolution Reconstruction of SAR Image based on Non-Local Means Denoising Combined with BP Neural Network
cs.CV
In this article, we propose a super-resolution method to resolve the problem of image low spatial because of the limitation of imaging devices. We make use of the strong non-linearity mapped ability of the back-propagation neural networks(BPNN). Training sample images are got by undersampled method. The elements chose ...
computer science
24,071
Registering large volume serial-section electron microscopy image sets for neural circuit reconstruction using FFT signal whitening
cs.CV
The detailed reconstruction of neural anatomy for connectomics studies requires a combination of resolution and large three-dimensional data capture provided by serial section electron microscopy (ssEM). The convergence of high throughput ssEM imaging and improved tissue preparation methods now allows ssEM capture of c...
computer science
24,072
Spectral video construction from RGB video: Application to Image Guided Neurosurgery
cs.CV
Spectral imaging has received enormous interest in the field of medical imaging modalities. It provides a powerful tool for the analysis of different organs and non-invasive tissues. Therefore, significant amount of research has been conducted to explore the possibility of using spectral imaging in biomedical applicati...
computer science
24,073
Fast-AT: Fast Automatic Thumbnail Generation using Deep Neural Networks
cs.CV
Fast-AT is an automatic thumbnail generation system based on deep neural networks. It is a fully-convolutional deep neural network, which learns specific filters for thumbnails of different sizes and aspect ratios. During inference, the appropriate filter is selected depending on the dimensions of the target thumbnail....
computer science
24,074
The More You Know: Using Knowledge Graphs for Image Classification
cs.CV
One characteristic that sets humans apart from modern learning-based computer vision algorithms is the ability to acquire knowledge about the world and use that knowledge to reason about the visual world. Humans can learn about the characteristics of objects and the relationships that occur between them to learn a larg...
computer science
24,075
Temporal-Needle: A view and appearance invariant video descriptor
cs.CV
The ability to detect similar actions across videos can be very useful for real-world applications in many fields. However, this task is still challenging for existing systems, since videos that present the same action, can be taken from significantly different viewing directions, performed by different actors and back...
computer science
24,076
A fuzzy approach for segmentation of touching characters
cs.CV
The problem of correctly segmenting touching characters is an hard task to solve and it is of major relevance in pattern recognition. In the recent years, many methods and algorithms have been proposed; still, a definitive solution is far from being found. In this paper, we propose a novel method based on fuzzy logic. ...
computer science
24,077
Border-Peeling Clustering
cs.CV
In this paper, we present a novel non-parametric clustering technique, which is based on an iterative algorithm that peels off layers of points around the clusters. Our technique is based on the notion that each latent cluster is comprised of layers that surround its core, where the external layers, or border points, i...
computer science
24,078
Scale Coding Bag of Deep Features for Human Attribute and Action Recognition
cs.CV
Most approaches to human attribute and action recognition in still images are based on image representation in which multi-scale local features are pooled across scale into a single, scale-invariant encoding. Both in bag-of-words and the recently popular representations based on convolutional neural networks, local fea...
computer science
24,079
Tinkering Under the Hood: Interactive Zero-Shot Learning with Net Surgery
cs.CV
We consider the task of visual net surgery, in which a CNN can be reconfigured without extra data to recognize novel concepts that may be omitted from the training set. While most prior work make use of linguistic cues for such "zero-shot" learning, we do so by using a pictorial language representation of the training ...
computer science
24,080
Regressing Robust and Discriminative 3D Morphable Models with a very Deep Neural Network
cs.CV
The 3D shapes of faces are well known to be discriminative. Yet despite this, they are rarely used for face recognition and always under controlled viewing conditions. We claim that this is a symptom of a serious but often overlooked problem with existing methods for single view 3D face reconstruction: when applied "in...
computer science
24,081
Design of Image Matched Non-Separable Wavelet using Convolutional Neural Network
cs.CV
Image-matched nonseparable wavelets can find potential use in many applications including image classification, segmen- tation, compressive sensing, etc. This paper proposes a novel design methodology that utilizes convolutional neural net- work (CNN) to design two-channel non-separable wavelet matched to a given image...
computer science
24,082
Development of a Real-time Colorectal Tumor Classification System for Narrow-band Imaging zoom-videoendoscopy
cs.CV
Colorectal endoscopy is important for the early detection and treatment of colorectal cancer and is used worldwide. A computer-aided diagnosis (CAD) system that provides an objective measure to endoscopists during colorectal endoscopic examinations would be of great value. In this study, we describe a newly developed C...
computer science
24,083
A Multilinear Tongue Model Derived from Speech Related MRI Data of the Human Vocal Tract
cs.CV
We present a multilinear statistical model of the human tongue that captures anatomical and tongue pose related shape variations separately. The model is derived from 3D magnetic resonance imaging data of 11 speakers sustaining speech related vocal tract configurations. The extraction is performed by using a minimally ...
computer science
24,084
Objective Micro-Facial Movement Detection Using FACS-Based Regions and Baseline Evaluation
cs.CV
Micro-facial expressions are regarded as an important human behavioural event that can highlight emotional deception. Spotting these movements is difficult for humans and machines, however research into using computer vision to detect subtle facial expressions is growing in popularity. This paper proposes an individual...
computer science
24,085
Reflectance Adaptive Filtering Improves Intrinsic Image Estimation
cs.CV
Separating an image into reflectance and shading layers poses a challenge for learning approaches because no large corpus of precise and realistic ground truth decompositions exists. The Intrinsic Images in the Wild~(IIW) dataset provides a sparse set of relative human reflectance judgments, which serves as a standard ...
computer science
24,086
SceneNet RGB-D: 5M Photorealistic Images of Synthetic Indoor Trajectories with Ground Truth
cs.CV
We introduce SceneNet RGB-D, expanding the previous work of SceneNet to enable large scale photorealistic rendering of indoor scene trajectories. It provides pixel-perfect ground truth for scene understanding problems such as semantic segmentation, instance segmentation, and object detection, and also for geometric com...
computer science
24,087
Visual Compiler: Synthesizing a Scene-Specific Pedestrian Detector and Pose Estimator
cs.CV
We introduce the concept of a Visual Compiler that generates a scene specific pedestrian detector and pose estimator without any pedestrian observations. Given a single image and auxiliary scene information in the form of camera parameters and geometric layout of the scene, the Visual Compiler first infers geometricall...
computer science
24,088
Towards a Deep Learning Framework for Unconstrained Face Detection
cs.CV
Robust face detection is one of the most important pre-processing steps to support facial expression analysis, facial landmarking, face recognition, pose estimation, building of 3D facial models, etc. Although this topic has been intensely studied for decades, it is still challenging due to numerous variants of face im...
computer science
24,089
Fast, Dense Feature SDM on an iPhone
cs.CV
In this paper, we present our method for enabling dense SDM to run at over 90 FPS on a mobile device. Our contributions are two-fold. Drawing inspiration from the FFT, we propose a Sparse Compositional Regression (SCR) framework, which enables a significant speed up over classical dense regressors. Second, we propose a...
computer science
24,090
FusionNet: A deep fully residual convolutional neural network for image segmentation in connectomics
cs.CV
Electron microscopic connectomics is an ambitious research direction with the goal of studying comprehensive brain connectivity maps by using high-throughput, nano-scale microscopy. One of the main challenges in connectomics research is developing scalable image analysis algorithms that require minimal user interventio...
computer science
24,091
Medical Image Synthesis with Context-Aware Generative Adversarial Networks
cs.CV
Computed tomography (CT) is critical for various clinical applications, e.g., radiotherapy treatment planning and also PET attenuation correction. However, CT exposes radiation during acquisition, which may cause side effects to patients. Compared to CT, magnetic resonance imaging (MRI) is much safer and does not invol...
computer science
24,092
Learning Residual Images for Face Attribute Manipulation
cs.CV
Face attributes are interesting due to their detailed description of human faces. Unlike prior researches working on attribute prediction, we address an inverse and more challenging problem called face attribute manipulation which aims at modifying a face image according to a given attribute value. Instead of manipulat...
computer science
24,093
Output Constraint Transfer for Kernelized Correlation Filter in Tracking
cs.CV
Kernelized Correlation Filter (KCF) is one of the state-of-the-art object trackers. However, it does not reasonably model the distribution of correlation response during tracking process, which might cause the drifting problem, especially when targets undergo significant appearance changes due to occlusion, camera shak...
computer science
24,094
The VQA-Machine: Learning How to Use Existing Vision Algorithms to Answer New Questions
cs.CV
One of the most intriguing features of the Visual Question Answering (VQA) challenge is the unpredictability of the questions. Extracting the information required to answer them demands a variety of image operations from detection and counting, to segmentation and reconstruction. To train a method to perform even one o...
computer science
24,095
Deep Residual Hashing
cs.CV
Hashing aims at generating highly compact similarity preserving code words which are well suited for large-scale image retrieval tasks. Most existing hashing methods first encode the images as a vector of hand-crafted features followed by a separate binarization step to generate hash codes. This two-stage process may...
computer science
24,096
Unsupervised Pixel-Level Domain Adaptation with Generative Adversarial Networks
cs.CV
Collecting well-annotated image datasets to train modern machine learning algorithms is prohibitively expensive for many tasks. One appealing alternative is rendering synthetic data where ground-truth annotations are generated automatically. Unfortunately, models trained purely on rendered images often fail to generali...
computer science
24,097
A Study of Lagrangean Decompositions and Dual Ascent Solvers for Graph Matching
cs.CV
We study the quadratic assignment problem, in computer vision also known as graph matching. Two leading solvers for this problem optimize the Lagrange decomposition duals with sub-gradient and dual ascent (also known as message passing) updates. We explore s direction further and propose several additional Lagrangean r...
computer science
24,098
Video Propagation Networks
cs.CV
We propose a technique that propagates information forward through video data. The method is conceptually simple and can be applied to tasks that require the propagation of structured information, such as semantic labels, based on video content. We propose a 'Video Propagation Network' that processes video frames in an...
computer science
24,099
On the crucial impact of the coupling projector-backprojector in iterative tomographic reconstruction
cs.CV
The performance of an iterative reconstruction algorithm for X-ray tomography is strongly determined by the features of the used forward and backprojector. For this reason, a large number of studies has focused on the to design of projectors with increasingly higher accuracy and speed. To what extent the accuracy of an...
computer science
24,100
SonoNet: Real-Time Detection and Localisation of Fetal Standard Scan Planes in Freehand Ultrasound
cs.CV
Identifying and interpreting fetal standard scan planes during 2D ultrasound mid-pregnancy examinations are highly complex tasks which require years of training. Apart from guiding the probe to the correct location, it can be equally difficult for a non-expert to identify relevant structures within the image. Automatic...
computer science
24,101
A Fusion Method Based on Decision Reliability Ratio for Finger Vein Verification
cs.CV
Finger vein verification has developed a lot since its first proposal, but there is still not a perfect algorithm. It is proved that algorithms with the same overall accuracy may have different misclassified patterns. We could make use of this complementation to fuse individual algorithms together for more precise resu...
computer science