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29,402
A Deep Structured Learning Approach Towards Automating Connectome Reconstruction from 3D Electron Micrographs
cs.CV
We present a deep structured learning method for neuron segmentation from 3D electron microscopy (EM) which improves significantly upon the state of the art in terms of accuracy and scalability. Our method consists of a 3D U-Net classifier predicting affinity graphs on voxels, followed by iterative region agglomeration...
computer science
29,403
Can you tell a face from a HEVC bitstream?
cs.CV
Image and video analytics are being increasingly used on a massive scale. Not only is the amount of data growing, but the complexity of the data processing pipelines is also increasing, thereby exacerbating the problem. It is becoming increasingly important to save computational resources wherever possible. We focus on...
computer science
29,404
Optimal Transport for Deep Joint Transfer Learning
cs.CV
Training a Deep Neural Network (DNN) from scratch requires a large amount of labeled data. For a classification task where only small amount of training data is available, a common solution is to perform fine-tuning on a DNN which is pre-trained with related source data. This consecutive training process is time consum...
computer science
29,405
A Product Shape Congruity Measure via Entropy in Shape Scale Space
cs.CV
Product shape is one of the factors that trigger preference decisions of customers. Congruity of shape elements and deformation of shape from the prototype are two factors that are found to influence aesthetic response, hence preference. We propose a measure to indirectly quantify congruity of different parts of the sh...
computer science
29,406
A Detail Based Method for Linear Full Reference Image Quality Prediction
cs.CV
In this paper, a novel Full Reference method is proposed for image quality assessment, using the combination of two separate metrics to measure the perceptually distinct impact of detail losses and of spurious details. To this purpose, the gradient of the impaired image is locally decomposed as a predicted version of t...
computer science
29,407
DPC-Net: Deep Pose Correction for Visual Localization
cs.CV
We present a novel method to fuse the power of deep networks with the computational efficiency of geometric and probabilistic localization algorithms. In contrast to other methods that completely replace a classical visual estimator with a deep network, we propose an approach that uses a convolutional neural network to...
computer science
29,408
Fully Convolutional Neural Networks for Dynamic Object Detection in Grid Maps (Masters Thesis)
cs.CV
One of the most important parts of environment perception is the detection of obstacles in the surrounding of the vehicle. To achieve that, several sensors like radars, LiDARs and cameras are installed in autonomous vehicles. The produced sensor data is fused to a general representation of the surrounding. In this thes...
computer science
29,409
Fully Convolutional Neural Networks for Dynamic Object Detection in Grid Maps
cs.CV
Grid maps are widely used in robotics to represent obstacles in the environment and differentiating dynamic objects from static infrastructure is essential for many practical applications. In this work, we present a methods that uses a deep convolutional neural network (CNN) to infer whether grid cells are covering a m...
computer science
29,410
An Iterative Regression Approach for Face Pose Estimation from RGB Images
cs.CV
This paper presents a iterative optimization method, explicit shape regression, for face pose detection and localization. The regression function is learnt to find out the entire facial shape and minimize the alignment errors. A cascaded learning framework is employed to enhance shape constraint during detection. A com...
computer science
29,411
Deep multi-frame face super-resolution
cs.CV
Face verification and recognition problems have seen rapid progress in recent years, however recognition from small size images remains a challenging task that is inherently intertwined with the task of face super-resolution. Tackling this problem using multiple frames is an attractive idea, yet requires solving the al...
computer science
29,412
3D Densely Convolutional Networks for Volumetric Segmentation
cs.CV
In the isointense stage, the accurate volumetric image segmentation is a challenging task due to the low contrast between tissues. In this paper, we propose a novel very deep network architecture based on a densely convolutional network for volumetric brain segmentation. The proposed network architecture provides a den...
computer science
29,413
Recurrent neural networks based Indic word-wise script identification using character-wise training
cs.CV
This paper presents a novel methodology of Indic handwritten script recognition using Recurrent Neural Networks and addresses the problem of script recognition in poor data scenarios, such as when only character level online data is available. It is based on the hypothesis that curves of online character data comprise ...
computer science
29,414
Fused Text Segmentation Networks for Multi-oriented Scene Text Detection
cs.CV
In this paper, we introduce a novel end-end framework for multi-oriented scene text detection from an instance-aware semantic segmentation perspective. We present Fused Text Segmentation Networks, which combine multi-level features during the feature extracting as text instance may rely on finer feature expression comp...
computer science
29,415
Stack-Captioning: Coarse-to-Fine Learning for Image Captioning
cs.CV
The existing image captioning approaches typically train a one-stage sentence decoder, which is difficult to generate rich fine-grained descriptions. On the other hand, multi-stage image caption model is hard to train due to the vanishing gradient problem. In this paper, we propose a coarse-to-fine multi-stage predicti...
computer science
29,416
Low-memory GEMM-based convolution algorithms for deep neural networks
cs.CV
Deep neural networks (DNNs) require very large amounts of computation both for training and for inference when deployed in the field. A common approach to implementing DNNs is to recast the most computationally expensive operations as general matrix multiplication (GEMM). However, as we demonstrate in this paper, there...
computer science
29,417
Automated Identification of Trampoline Skills Using Computer Vision Extracted Pose Estimation
cs.CV
A novel method to identify trampoline skills using a single video camera is proposed herein. Conventional computer vision techniques are used for identification, estimation, and tracking of the gymnast's body in a video recording of the routine. For each frame, an open source convolutional neural network is used to est...
computer science
29,418
Generic Sketch-Based Retrieval Learned without Drawing a Single Sketch
cs.CV
We cast the sketch-based retrieval as edge-map matching. A shared convolutional network is trained to extract descriptors from edge maps and sketches, which are treated as a special case of edge maps. The network is fine-tuned solely from edge maps of landmark images. The training images are acquired in a fully unsuper...
computer science
29,419
One-Shot Learning for Semantic Segmentation
cs.CV
Low-shot learning methods for image classification support learning from sparse data. We extend these techniques to support dense semantic image segmentation. Specifically, we train a network that, given a small set of annotated images, produces parameters for a Fully Convolutional Network (FCN). We use this FCN to per...
computer science
29,420
Why Do Deep Neural Networks Still Not Recognize These Images?: A Qualitative Analysis on Failure Cases of ImageNet Classification
cs.CV
In a recent decade, ImageNet has become the most notable and powerful benchmark database in computer vision and machine learning community. As ImageNet has emerged as a representative benchmark for evaluating the performance of novel deep learning models, its evaluation tends to include only quantitative measures such ...
computer science
29,421
Deep Generative Filter for Motion Deblurring
cs.CV
Removing blur caused by camera shake in images has always been a challenging problem in computer vision literature due to its ill-posed nature. Motion blur caused due to the relative motion between the camera and the object in 3D space induces a spatially varying blurring effect over the entire image. In this paper, we...
computer science
29,422
Recovering Homography from Camera Captured Documents using Convolutional Neural Networks
cs.CV
Removing perspective distortion from hand held camera captured document images is one of the primitive tasks in document analysis, but unfortunately, no such method exists that can reliably remove the perspective distortion from document images automatically. In this paper, we propose a convolutional neural network bas...
computer science
29,423
Exploring Geometric Property Thresholds For Filtering Non-Text Regions In A Connected Component Based Text Detection Application
cs.CV
Automated text detection is a difficult computer vision task. In order to accurately detect and identity text in an image or video, two major problems must be addressed. The primary problem is implementing a robust and reliable method for distinguishing text vs non-text regions in images and videos. Part of the difficu...
computer science
29,424
Extracting Traffic Primitives Directly from Naturalistically Logged Data for Self-Driving Applications
cs.CV
Developing an automated vehicle, that can handle the complicated driving scenarios and appropriately interact with other road users, requires the ability to semantically learn and understand the driving environment, oftentimes, based on the analysis of massive amount of naturalistic driving data. An important paradigm ...
computer science
29,425
Real-Time Multiple Object Tracking - A Study on the Importance of Speed
cs.CV
In this project, we implement a multiple object tracker, following the tracking-by-detection paradigm, as an extension of an existing method. It works by modelling the movement of objects by solving the filtering problem, and associating detections with predicted new locations in new frames using the Hungarian algorith...
computer science
29,426
On the definition of Shape Parts: a Dominant Sets Approach
cs.CV
In the present paper a novel graph-based approach to the shape decomposition problem is addressed. The shape is appropriately transformed into a visibility graph enriched with local neighborhood information. A two-step diffusion process is then applied to the visibility graph that efficiently enhances the information p...
computer science
29,427
Holistic, Instance-Level Human Parsing
cs.CV
Object parsing -- the task of decomposing an object into its semantic parts -- has traditionally been formulated as a category-level segmentation problem. Consequently, when there are multiple objects in an image, current methods cannot count the number of objects in the scene, nor can they determine which part belongs...
computer science
29,428
Anti-Makeup: Learning A Bi-Level Adversarial Network for Makeup-Invariant Face Verification
cs.CV
Makeup is widely used to improve facial attractiveness and is well accepted by the public. However, different makeup styles will result in significant facial appearance changes. It remains a challenging problem to match makeup and non-makeup face images. This paper proposes a learning from generation approach for makeu...
computer science
29,429
Learning Gating ConvNet for Two-Stream based Methods in Action Recognition
cs.CV
For the two-stream style methods in action recognition, fusing the two streams' predictions is always by the weighted averaging scheme. This fusion method with fixed weights lacks of pertinence to different action videos and always needs trial and error on the validation set. In order to enhance the adaptability of two...
computer science
29,430
Joint Adaptive Neighbours and Metric Learning for Multi-view Subspace Clustering
cs.CV
Due to the existence of various views or representations in many real-world data, multi-view learning has drawn much attention recently. Multi-view spectral clustering methods based on similarity matrixes or graphs are pretty popular. Generally, these algorithms learn informative graphs by directly utilizing original d...
computer science
29,431
Adversarial Discriminative Heterogeneous Face Recognition
cs.CV
The gap between sensing patterns of different face modalities remains a challenging problem in heterogeneous face recognition (HFR). This paper proposes an adversarial discriminative feature learning framework to close the sensing gap via adversarial learning on both raw-pixel space and compact feature space. This fram...
computer science
29,432
Joint Dictionaries for Zero-Shot Learning
cs.CV
A classic approach toward zero-shot learning (ZSL) is to map the input domain to a set of semantically meaningful attributes that could be used later on to classify unseen classes of data (e.g. visual data). In this paper, we propose to learn a visual feature dictionary that has semantically meaningful atoms. Such dict...
computer science
29,433
Automatic Ground Truths: Projected Image Annotations for Omnidirectional Vision
cs.CV
We present a novel data set made up of omnidirectional video of multiple objects whose centroid positions are annotated automatically. Omnidirectional vision is an active field of research focused on the use of spherical imagery in video analysis and scene understanding, involving tasks such as object detection, tracki...
computer science
29,434
Construction of Latent Descriptor Space and Inference Model of Hand-Object Interactions
cs.CV
Appearance-based generic object recognition is a challenging problem because all possible appearances of objects cannot be registered, especially as new objects are produced every day. Function of objects, however, has a comparatively small number of prototypes. Therefore, function-based classification of new objects c...
computer science
29,435
Transform Invariant Auto-encoder
cs.CV
The auto-encoder method is a type of dimensionality reduction method. A mapping from a vector to a descriptor that represents essential information can be automatically generated from a set of vectors without any supervising information. However, an image and its spatially shifted version are encoded into different des...
computer science
29,436
Efficient Online Surface Correction for Real-time Large-Scale 3D Reconstruction
cs.CV
State-of-the-art methods for large-scale 3D reconstruction from RGB-D sensors usually reduce drift in camera tracking by globally optimizing the estimated camera poses in real-time without simultaneously updating the reconstructed surface on pose changes. We propose an efficient on-the-fly surface correction method for...
computer science
29,437
Sparse Representation Based Augmented Multinomial Logistic Extreme Learning Machine with Weighted Composite Features for Spectral Spatial Hyperspectral Image Classification
cs.CV
Although extreme learning machine (ELM) has been successfully applied to a number of pattern recognition problems, it fails to pro-vide sufficient good results in hyperspectral image (HSI) classification due to two main drawbacks. The first is due to the random weights and bias of ELM, which may lead to ill-posed probl...
computer science
29,438
Can Deep Neural Networks Match the Related Objects?: A Survey on ImageNet-trained Classification Models
cs.CV
Deep neural networks (DNNs) have shown the state-of-the-art level of performances in wide range of complicated tasks. In recent years, the studies have been actively conducted to analyze the black box characteristics of DNNs and to grasp the learning behaviours, tendency, and limitations of DNNs. In this paper, we inve...
computer science
29,439
Emotion Recognition in the Wild using Deep Neural Networks and Bayesian Classifiers
cs.CV
Group emotion recognition in the wild is a challenging problem, due to the unstructured environments in which everyday life pictures are taken. Some of the obstacles for an effective classification are occlusions, variable lighting conditions, and image quality. In this work we present a solution based on a novel combi...
computer science
29,440
ExprGAN: Facial Expression Editing with Controllable Expression Intensity
cs.CV
Facial expression editing is a challenging task as it needs a high-level semantic understanding of the input face image. In conventional methods, either paired training data is required or the synthetic face resolution is low. Moreover, only the categories of facial expression can be changed. To address these limitatio...
computer science
29,441
A Deep Cascade Network for Unaligned Face Attribute Classification
cs.CV
Humans focus attention on different face regions when recognizing face attributes. Most existing face attribute classification methods use the whole image as input. Moreover, some of these methods rely on fiducial landmarks to provide defined face parts. In this paper, we propose a cascade network that simultaneously l...
computer science
29,442
Improving precision and recall of face recognition in SIPP with combination of modified mean search and LSH
cs.CV
Although face recognition has been improved much as the development of Deep Neural Networks, SIPP(Single Image Per Person) problem in face recognition has not been better solved, especially in practical applications where searching over complicated database. In this paper, a combination of modified mean search and LSH ...
computer science
29,443
Image Matching: An Application-oriented Benchmark
cs.CV
Image matching approaches have been widely used in computer vision applications in which the image-level matching performance of matchers is critical. However, it has not been well investigated by previous works which place more emphases on evaluating local features. To this end, we present a uniform benchmark with nov...
computer science
29,444
Unsupervised Deep Homography: A Fast and Robust Homography Estimation Model
cs.CV
Homography estimation between multiple aerial images can provide relative pose estimation for collaborative autonomous exploration and monitoring. The usage on a robotic system requires a fast and robust homography estimation algorithm. In this study, we propose an unsupervised learning algorithm that trains a Deep Con...
computer science
29,445
Bridge the Gap Between Group Sparse Coding and Rank Minimization via Adaptive Dictionary Learning
cs.CV
Both sparse coding and rank minimization have led to great successes in various image processing tasks. Though the underlying principles of these two approaches are similar, no theory is available to demonstrate the correspondence. In this paper, starting by designing an adaptive dictionary for each group of image patc...
computer science
29,446
Multi-scale Forest Species Recognition Systems for Reduced Cost
cs.CV
This work focuses on cost reduction methods for forest species recognition systems. Current state-of-the-art shows that the accuracy of these systems have increased considerably in the past years, but the cost in time to perform the recognition of input samples has also increased proportionally. For this reason, in thi...
computer science
29,447
Streamlined Deployment for Quantized Neural Networks
cs.CV
Running Deep Neural Network (DNN) models on devices with limited computational capability is a challenge due to large compute and memory requirements. Quantized Neural Networks (QNNs) have emerged as a potential solution to this problem, promising to offer most of the DNN accuracy benefits with much lower computational...
computer science
29,448
Joint Learning of Set Cardinality and State Distribution
cs.CV
We present a novel approach for learning to predict sets using deep learning. In recent years, deep neural networks have shown remarkable results in computer vision, natural language processing and other related problems. Despite their success, traditional architectures suffer from a serious limitation in that they are...
computer science
29,449
Meta Networks for Neural Style Transfer
cs.CV
In this paper we propose a new method to get the specified network parameters through one time feed-forward propagation of the meta networks and explore the application to neural style transfer. Recent works on style transfer typically need to train image transformation networks for every new style, and the style is en...
computer science
29,450
Sketch-pix2seq: a Model to Generate Sketches of Multiple Categories
cs.CV
Sketch is an important media for human to communicate ideas, which reflects the superiority of human intelligence. Studies on sketch can be roughly summarized into recognition and generation. Existing models on image recognition failed to obtain satisfying performance on sketch classification. But for sketch generation...
computer science
29,451
Densely tracking sequences of 3D face scans
cs.CV
3D face dense tracking aims to find dense inter-frame correspondences in a sequence of 3D face scans and constitutes a powerful tool for many face analysis tasks, e.g., 3D dynamic facial expression analysis. The majority of the existing methods just fit a 3D face surface or model to a 3D target surface without consider...
computer science
29,452
Reading Scene Text with Attention Convolutional Sequence Modeling
cs.CV
Reading text in the wild is a challenging task in the field of computer vision. Existing approaches mainly adopted Connectionist Temporal Classification (CTC) or Attention models based on Recurrent Neural Network (RNN), which is computationally expensive and hard to train. In this paper, we present an end-to-end Attent...
computer science
29,453
GLAD: Global-Local-Alignment Descriptor for Pedestrian Retrieval
cs.CV
The huge variance of human pose and the misalignment of detected human images significantly increase the difficulty of person Re-Identification (Re-ID). Moreover, efficient Re-ID systems are required to cope with the massive visual data being produced by video surveillance systems. Targeting to solve these problems, th...
computer science
29,454
End-to-End Audiovisual Fusion with LSTMs
cs.CV
Several end-to-end deep learning approaches have been recently presented which simultaneously extract visual features from the input images and perform visual speech classification. However, research on jointly extracting audio and visual features and performing classification is very limited. In this work, we present ...
computer science
29,455
Flexible Network Binarization with Layer-wise Priority
cs.CV
How to effectively approximate real-valued parameters with binary codes plays a central role in neural network binarization. In this work, we reveal an important fact that binarizing different layers has a widely-varied effect on the compression ratio of network and the loss of performance. Based on this fact, we propo...
computer science
29,456
Zoom Out-and-In Network with Map Attention Decision for Region Proposal and Object Detection
cs.CV
In this paper, we propose a zoom-out-and-in network for generating object proposals. A key observation is that it is difficult to classify anchors of different sizes with the same set of features. Anchors of different sizes should be placed accordingly based on different depth within a network: smaller boxes on high-re...
computer science
29,457
An Efficient Evolutionary Based Method For Image Segmentation
cs.CV
The goal of this paper is to present a new efficient image segmentation method based on evolutionary computation which is a model inspired from human behavior. Based on this model, a four layer process for image segmentation is proposed using the split/merge approach. In the first layer, an image is split into numerous...
computer science
29,458
Exploiting skeletal structure in computer vision annotation with Benders decomposition
cs.CV
Many annotation problems in computer vision can be phrased as integer linear programs (ILPs). The use of standard industrial solvers does not to exploit the underlying structure of such problems eg, the skeleton in pose estimation. The leveraging of the underlying structure in conjunction with industrial solvers promis...
computer science
29,459
An Exploration of 2D and 3D Deep Learning Techniques for Cardiac MR Image Segmentation
cs.CV
Accurate segmentation of the heart is an important step towards evaluating cardiac function. In this paper, we present a fully automated framework for segmentation of the left (LV) and right (RV) ventricular cavities and the myocardium (Myo) on short-axis cardiac MR images. We investigate various 2D and 3D convolutiona...
computer science
29,460
Recurrent Saliency Transformation Network: Incorporating Multi-Stage Visual Cues for Small Organ Segmentation
cs.CV
We aim at segmenting small organs (e.g., the pancreas) from abdominal CT scans. As the target often occupies a relatively small region in the input image, deep neural networks can be easily confused by the complex and variable background. To alleviate this, researchers proposed a coarse-to-fine approach, which used pre...
computer science
29,461
DeepVoting: An Explainable Framework for Semantic Part Detection under Partial Occlusion
cs.CV
In this paper, we study the task of detecting semantic parts of an object. This is very important in computer vision, as it provides the possibility to parse an object as human do, and helps us better understand object detection algorithms. Also, detecting semantic parts is very challenging especially when the parts ar...
computer science
29,462
A2-RL: Aesthetics Aware Reinforcement Learning for Image Cropping
cs.CV
Image cropping aims at improving the aesthetic quality of images by adjusting their composition. Most weakly supervised cropping methods (without bounding box supervision) rely on the sliding window mechanism. The sliding window mechanism requires fixed aspect ratios and limits the cropping region with arbitrary size. ...
computer science
29,463
Learning to Segment Instances in Videos with Spatial Propagation Network
cs.CV
We propose a deep learning-based framework for instance-level object segmentation. Our method mainly consists of three steps. First, We train a generic model based on ResNet-101 for foreground/background segmentations. Second, based on this generic model, we fine-tune it to learn instance-level models and segment indiv...
computer science
29,464
Learning Multi-frame Visual Representation for Joint Detection and Tracking of Small Objects
cs.CV
Deep convolutional and recurrent neural networks have delivered significant advancements in object detection and tracking. However, current models handle detection and tracking through separate networks, and deep-learning-based joint detection and tracking has not yet been explored despite its potential benefits to bot...
computer science
29,465
Unsupervised object discovery for instance recognition
cs.CV
Severe background clutter is challenging in many computer vision tasks, including large-scale image retrieval. Global descriptors, that are popular due to their memory and search efficiency, are especially prone to corruption by such a clutter. Eliminating the impact of the clutter on the image descriptor increases the...
computer science
29,466
Binary-decomposed DCNN for accelerating computation and compressing model without retraining
cs.CV
Recent trends show recognition accuracy increasing even more profoundly. Inference process of Deep Convolutional Neural Networks (DCNN) has a large number of parameters, requires a large amount of computation, and can be very slow. The large number of parameters also require large amounts of memory. This is resulting i...
computer science
29,467
Exploring Food Detection using CNNs
cs.CV
One of the most common critical factors directly related to the cause of a chronic disease is unhealthy diet consumption. In this sense, building an automatic system for food analysis could allow a better understanding of the nutritional information with respect to the food eaten and thus it could help in taking correc...
computer science
29,468
MODNet: Moving Object Detection Network with Motion and Appearance for Autonomous Driving
cs.CV
We propose a novel multi-task learning system that combines appearance and motion cues for a better semantic reasoning of the environment. A unified architecture for joint vehicle detection and motion segmentation is introduced. In this architecture, a two-stream encoder is shared among both tasks. In order to evaluate...
computer science
29,469
Food Recognition using Fusion of Classifiers based on CNNs
cs.CV
With the arrival of convolutional neural networks, the complex problem of food recognition has experienced an important improvement in recent years. The best results have been obtained using methods based on very deep convolutional neural networks, which show that the deeper the model,the better the classification accu...
computer science
29,470
Benchmarking Super-Resolution Algorithms on Real Data
cs.CV
Over the past decades, various super-resolution (SR) techniques have been developed to enhance the spatial resolution of digital images. Despite the great number of methodical contributions, there is still a lack of comparative validations of SR under practical conditions, as capturing real ground truth data is a chall...
computer science
29,471
ImageNet Training in Minutes
cs.CV
Finishing 90-epoch ImageNet-1k training with ResNet-50 on a NVIDIA M40 GPU takes 14 days. This training requires 10^18 single precision operations in total. On the other hand, the world's current fastest supercomputer can finish 2 * 10^17 single precision operations per second (Dongarra et al 2017, https://www.top500.o...
computer science
29,472
Feature-Fused SSD: Fast Detection for Small Objects
cs.CV
Small objects detection is a challenging task in computer vision due to its limited resolution and information. In order to solve this problem, the majority of existing methods sacrifice speed for improvement in accuracy. In this paper, we aim to detect small objects at a fast speed, using the best object detector Sing...
computer science
29,473
Asian Stamps Identification and Classification System
cs.CV
In this paper, we address the problem of stamp recognition. The goal is to classify a given stamp to a certain country and also identify the year it is published. We propose a new approach for stamp recognition based on describing a given stamp image using color information and texture information. For color informatio...
computer science
29,474
Joint Hierarchical Category Structure Learning and Large-Scale Image Classification
cs.CV
We investigate the scalable image classification problem with a large number of categories. Hierarchical visual data structures are helpful for improving the efficiency and performance of large-scale multi-class classification. We propose a novel image classification method based on learning hierarchical inter-class st...
computer science
29,475
Robust Kernelized Multi-View Self-Representations for Clustering by Tensor Multi-Rank Minimization
cs.CV
Most recently, tensor-SVD is implemented on multi-view self-representation clustering and has achieved the promising results in many real-world applications such as face clustering, scene clustering and generic object clustering. However, tensor-SVD based multi-view self-representation clustering is proposed originally...
computer science
29,476
Viewpoint Invariant Action Recognition using RGB-D Videos
cs.CV
In video-based action recognition, viewpoint variations often pose major challenges because the same actions can appear different from different views. We use the complementary RGB and Depth information from the RGB-D cameras to address this problem. The proposed technique capitalizes on the spatio-temporal information...
computer science
29,477
Multi-scale Deep Learning Architectures for Person Re-identification
cs.CV
Person Re-identification (re-id) aims to match people across non-overlapping camera views in a public space. It is a challenging problem because many people captured in surveillance videos wear similar clothes. Consequently, the differences in their appearance are often subtle and only detectable at the right location ...
computer science
29,478
Masquer Hunter: Adversarial Occlusion-aware Face Detection
cs.CV
Occluded face detection is a challenging detection task due to the large appearance variations incurred by various real-world occlusions. This paper introduces an Adversarial Occlusion-aware Face Detector (AOFD) by simultaneously detecting occluded faces and segmenting occluded areas. Specifically, we employ an adversa...
computer science
29,479
Detecting Faces Using Region-based Fully Convolutional Networks
cs.CV
Face detection has achieved great success using the region-based methods. In this report, we propose a region-based face detector applying deep networks in a fully convolutional fashion, named Face R-FCN. Based on Region-based Fully Convolutional Networks (R-FCN), our face detector is more accurate and computational ef...
computer science
29,480
Correlating Satellite Cloud Cover with Sky Cameras
cs.CV
The role of clouds is manifold in understanding the various events in the atmosphere, and also in studying the radiative balance of the earth. The conventional manner of such cloud analysis is performed mainly via satellite images. However, because of its low temporal- and spatial- resolutions, ground-based sky cameras...
computer science
29,481
Top-Down Saliency Detection Driven by Visual Classification
cs.CV
This paper presents an approach for top-down saliency detection guided by visual classification tasks. We first learn how to compute visual saliency when a specific visual task has to be accomplished, as opposed to most state-of-the-art methods which assess saliency merely through bottom-up principles. Afterwards, we i...
computer science
29,482
Video Synopsis Generation Using Spatio-Temporal Groups
cs.CV
Millions of surveillance cameras operate at 24x7 generating huge amount of visual data for processing. However, retrieval of important activities from such a large data can be time consuming. Thus, researchers are working on finding solutions to present hours of visual data in a compressed, but meaningful way. Video sy...
computer science
29,483
Cystoid macular edema segmentation of Optical Coherence Tomography images using fully convolutional neural networks and fully connected CRFs
cs.CV
In this paper we present a new method for cystoid macular edema (CME) segmentation in retinal Optical Coherence Tomography (OCT) images, using a fully convolutional neural network (FCN) and a fully connected conditional random fields (dense CRFs). As a first step, the framework trains the FCN model to extract features ...
computer science
29,484
Zero-Shot Learning to Manage a Large Number of Place-Specific Compressive Change Classifiers
cs.CV
With recent progress in large-scale map maintenance and long-term map learning, the task of change detection on a large-scale map from a visual image captured by a mobile robot has become a problem of increasing criticality. Previous approaches for change detection are typically based on image differencing and require ...
computer science
29,485
NIMA: Neural Image Assessment
cs.CV
Automatically learned quality assessment for images has recently become a hot topic due to its usefulness in a wide variety of applications such as evaluating image capture pipelines, storage techniques and sharing media. Despite the subjective nature of this problem, most existing methods only predict the mean opinion...
computer science
29,486
Long-Term Ensemble Learning of Visual Place Classifiers
cs.CV
This paper addresses the problem of cross-season visual place classification (VPC) from a novel perspective of long-term map learning. Our goal is to enable transfer learning efficiently from one season to the next, at a small constant cost, and without wasting the robot's available long-term-memory by memorizing very ...
computer science
29,487
The Multiscale Bowler-Hat Transform for Blood Vessel Enhancement in Retinal Images
cs.CV
Enhancement, followed by segmentation, quantification and modelling, of blood vessels in retinal images plays an essential role in computer-aid retinopathy diagnosis. In this paper, we introduce a new vessel enhancement method which is the bowler-hat transform based on mathematical morphology. The proposed method combi...
computer science
29,488
An Improved Fatigue Detection System Based on Behavioral Characteristics of Driver
cs.CV
In recent years, road accidents have increased significantly. One of the major reasons for these accidents, as reported is driver fatigue. Due to continuous and longtime driving, the driver gets exhausted and drowsy which may lead to an accident. Therefore, there is a need for a system to measure the fatigue level of d...
computer science
29,489
Organizing Multimedia Data in Video Surveillance Systems Based on Face Verification with Convolutional Neural Networks
cs.CV
In this paper we propose the two-stage approach of organizing information in video surveillance systems. At first, the faces are detected in each frame and a video stream is split into sequences of frames with face region of one person. Secondly, these sequences (tracks) that contain identical faces are grouped using f...
computer science
29,490
Facial Feature Tracking under Varying Facial Expressions and Face Poses based on Restricted Boltzmann Machines
cs.CV
Facial feature tracking is an active area in computer vision due to its relevance to many applications. It is a nontrivial task, since faces may have varying facial expressions, poses or occlusions. In this paper, we address this problem by proposing a face shape prior model that is constructed based on the Restricted ...
computer science
29,491
A Hierarchical Probabilistic Model for Facial Feature Detection
cs.CV
Facial feature detection from facial images has attracted great attention in the field of computer vision. It is a nontrivial task since the appearance and shape of the face tend to change under different conditions. In this paper, we propose a hierarchical probabilistic model that could infer the true locations of fac...
computer science
29,492
Joint Estimation of Camera Pose, Depth, Deblurring, and Super-Resolution from a Blurred Image Sequence
cs.CV
The conventional methods for estimating camera poses and scene structures from severely blurry or low resolution images often result in failure. The off-the-shelf deblurring or super-resolution methods may show visually pleasing results. However, applying each technique independently before matching is generally unprof...
computer science
29,493
Where to Focus: Deep Attention-based Spatially Recurrent Bilinear Networks for Fine-Grained Visual Recognition
cs.CV
Fine-grained visual recognition typically depends on modeling subtle difference from object parts. However, these parts often exhibit dramatic visual variations such as occlusions, viewpoints, and spatial transformations, making it hard to detect. In this paper, we present a novel attention-based model to automatically...
computer science
29,494
Social Style Characterization from Egocentric Photo-streams
cs.CV
This paper proposes a system for automatic social pattern characterization using a wearable photo-camera. The proposed pipeline consists of three major steps. First, detection of people with whom the camera wearer interacts and, second, categorization of the detected social interactions into formal and informal. These ...
computer science
29,495
StairNet: Top-Down Semantic Aggregation for Accurate One Shot Detection
cs.CV
One-stage object detectors such as SSD or YOLO already have shown promising accuracy with small memory footprint and fast speed. However, it is widely recognized that one-stage detectors have difficulty in detecting small objects while they are competitive with two-stage methods on large objects. In this paper, we inve...
computer science
29,496
Direct Pose Estimation with a Monocular Camera
cs.CV
We present a direct method to calculate a 6DoF pose change of a monocular camera for mobile navigation. The calculated pose is estimated up to a constant unknown scale parameter that is kept constant over the entire reconstruction process. This method allows a direct cal- culation of the metric position and rotation wi...
computer science
29,497
Beyond SIFT using Binary features for Loop Closure Detection
cs.CV
In this paper a binary feature based Loop Closure Detection (LCD) method is proposed, which for the first time achieves higher precision-recall (PR) performance compared with state-of-the-art SIFT feature based approaches. The proposed system originates from our previous work Multi-Index hashing for Loop closure Detect...
computer science
29,498
Microscopy Cell Segmentation via Adversarial Neural Networks
cs.CV
We present a novel method for cell segmentation in microscopy images which is inspired by the Generative Adversarial Neural Network (GAN) approach. Our framework is built on a pair of two competitive artificial neural networks, with a unique architecture, termed Rib Cage, which are trained simultaneously and together d...
computer science
29,499
Combinational neural network using Gabor filters for the classification of handwritten digits
cs.CV
A classification algorithm that combines the components of k-nearest neighbours and multilayer neural networks has been designed and tested. With this method the computational time required for training the dataset has been reduced substancially. Gabor filters were used for the feature extraction to ensure a better per...
computer science
29,500
E$^2$BoWs: An End-to-End Bag-of-Words Model via Deep Convolutional Neural Network
cs.CV
Traditional Bag-of-visual Words (BoWs) model is commonly generated with many steps including local feature extraction, codebook generation, and feature quantization, etc. Those steps are relatively independent with each other and are hard to be jointly optimized. Moreover, the dependency on hand-crafted local feature m...
computer science
29,501
Multi-Task Learning for Segmentation of Building Footprints with Deep Neural Networks
cs.CV
The increased availability of high resolution satellite imagery allows to sense very detailed structures on the surface of our planet. Access to such information opens up new directions in the analysis of remote sensing imagery. However, at the same time this raises a set of new challenges for existing pixel-based pred...
computer science