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31,202
Camera-based vehicle velocity estimation from monocular video
cs.CV
This paper documents the winning entry at the CVPR2017 vehicle velocity estimation challenge. Velocity estimation is an emerging task in autonomous driving which has not yet been thoroughly explored. The goal is to estimate the relative velocity of a specific vehicle from a sequence of images. In this paper, we present...
computer science
31,203
Uncertainty Estimates for Optical Flow with Multi-Hypotheses Networks
cs.CV
Recent work has shown that optical flow estimation can be formulated as an end-to-end supervised learning problem, which yields estimates with a superior accuracy-runtime tradeoff compared to alternative methodology. In this paper, we make the network estimate its local uncertainty about the correctness of its predicti...
computer science
31,204
Stroke Controllable Fast Style Transfer with Adaptive Receptive Fields
cs.CV
Recently, in the community of Neural Style Transfer, several algorithms are proposed to transfer an artistic style in real-time, which is known as Fast Style Transfer. However, controlling the stroke size in stylized results still remains an open challenge. To achieve controllable stroke sizes, several attempts were ma...
computer science
31,205
Transport-Based Pattern Theory: A Signal Transformation Approach
cs.CV
In many scientific fields imaging is used to relate a certain physical quantity to other dependent variables. Therefore, images can be considered as a map from a real-world coordinate system to the non-negative measurements being acquired. In this work we describe an approach for simultaneous modeling and inference of ...
computer science
31,206
MoNet: Moments Embedding Network
cs.CV
Bilinear pooling has been recently proposed as a feature encoding layer, which can be used after the convolutional layers of a deep network, to improve performance in multiple vision tasks. Instead of conventional global average pooling or fully connected layer, bilinear pooling gathers 2nd order information in a trans...
computer science
31,207
Devon: Deformable Volume Network for Learning Optical Flow
cs.CV
We propose a lightweight neural network model, Deformable Volume Network (Devon) for learning optical flow. Devon benefits from a multi-stage framework to iteratively refine its prediction. Each stage is by itself a neural network with an identical architecture. The optical flow between two stages is propagated with a ...
computer science
31,208
Density-aware Single Image De-raining using a Multi-stream Dense Network
cs.CV
Single image rain streak removal is an extremely challenging problem due to the presence of non-uniform rain densities in images. We present a novel density-aware multi-stream densely connected convolutional neural network-based algorithm, called DID-MDN, for joint rain density estimation and de-raining. The proposed m...
computer science
31,209
Angle constrained path to cluster multiple manifolds
cs.CV
In this paper, we propose a method to cluster multiple intersected manifolds. The algorithm chooses several landmark nodes randomly and then checks whether there is an angle constrained path between each landmark node and every other node in the neighborhood graph. When the points lie on different manifolds with inters...
computer science
31,210
Conditional Adversarial Synthesis of 3D Facial Action Units
cs.CV
Employing deep learning-based approaches for fine-grained facial expression analysis, such as those involving the estimation of Action Unit (AU) intensities, is difficult due to the lack of a large-scale dataset of real faces with sufficiently diverse AU labels for training. In this paper, we consider how AU-level faci...
computer science
31,211
Binary Constrained Deep Hashing Network for Image Retrieval without Human Intervention
cs.CV
Learning compact binary codes for image retrieval problem using deep neural networks has attracted increasing attention recently. However, training deep hashing networks is challenging due to the binary constraints on the hash codes, the similarity preserving properties, and the requirement for a vast amount of labelle...
computer science
31,212
Load Balanced GANs for Multi-view Face Image Synthesis
cs.CV
Multi-view face synthesis from a single image is an ill-posed problem and often suffers from serious appearance distortion. Producing photo-realistic and identity preserving multi-view results is still a not well defined synthesis problem. This paper proposes Load Balanced Generative Adversarial Networks (LB-GAN) to pr...
computer science
31,213
Spatial Morphing Kernel Regression For Feature Interpolation
cs.CV
In recent years, geotagged social media has become popular as a novel source for geographic knowledge discovery. Ground-level images and videos provide a different perspective than overhead imagery and can be applied to a range of applications such as land use mapping, activity detection, pollution mapping, etc. The sp...
computer science
31,214
Learning Image Conditioned Label Space for Multilabel Classification
cs.CV
This work addresses the task of multilabel image classification. Inspired by the great success from deep convolutional neural networks (CNNs) for single-label visual-semantic embedding, we exploit extending these models for multilabel images. Specifically, we propose an image-dependent ranking model, which returns a ra...
computer science
31,215
Multiclass Weighted Loss for Instance Segmentation of Cluttered Cells
cs.CV
We propose a new multiclass weighted loss function for instance segmentation of cluttered cells. We are primarily motivated by the need of developmental biologists to quantify and model the behavior of blood T-cells which might help us in understanding their regulation mechanisms and ultimately help researchers in thei...
computer science
31,216
DeepASL: Enabling Ubiquitous and Non-Intrusive Word and Sentence-Level Sign Language Translation
cs.CV
There is an undeniable communication barrier between deaf people and people with normal hearing ability. Although innovations in sign language translation technology aim to tear down this communication barrier, the majority of existing sign language translation systems are either intrusive or constrained by resolution ...
computer science
31,217
Deep Collaborative Weight-based Classification
cs.CV
One of the biggest problems in deep learning is its difficulty to retain consistent robustness when transferring the model trained on one dataset to another dataset. To conquer the problem, deep transfer learning was implemented to execute various vision tasks by using a pre-trained deep model in a diverse dataset. How...
computer science
31,218
Batch Normalization and the impact of batch structure on the behavior of deep convolution networks
cs.CV
Batch normalization was introduced in 2015 to speed up training of deep convolution networks by normalizing the activations across the current batch to have zero mean and unity variance. The results presented here show an interesting aspect of batch normalization, where controlling the shape of the training batches can...
computer science
31,219
Building Efficient ConvNets using Redundant Feature Pruning
cs.CV
This paper presents an efficient technique to prune deep and/or wide convolutional neural network models by eliminating redundant features (or filters). Previous studies have shown that over-sized deep neural network models tend to produce a lot of redundant features that are either shifted version of one another or ar...
computer science
31,220
Learning Multiple Categories on Deep Convolution Networks
cs.CV
Deep convolution networks have proved very successful with big datasets such as the 1000-classes ImageNet. Results show that the error rate increases slowly as the size of the dataset increases. Experiments presented here may explain why these networks are very effective in solving big recognition problems. If the big ...
computer science
31,221
Lossless Compression of Angiogram Foreground with Visual Quality Preservation of Background
cs.CV
By increasing the volume of telemedicine information, the need for medical image compression has become more important. In angiographic images, a small ratio of the entire image usually belongs to the vasculature that provides crucial information for diagnosis. Other parts of the image are diagnostically less important...
computer science
31,222
Generalizable Adversarial Examples Detection Based on Bi-model Decision Mismatch
cs.CV
Deep neural networks (DNNs) have shown phenomenal success in a wide range of applications. However, recent studies have discovered that they are vulnerable to Adversarial Examples, i.e., original samples with added subtle perturbations. Such perturbations are often too small and imperceptible to humans, yet they can ea...
computer science
31,223
Left Ventricle Segmentation in Cardiac MR Images Using Fully Convolutional Network
cs.CV
Medical image analysis, especially segmenting a specific organ, has an important role in developing clinical decision support systems. In cardiac magnetic resonance (MR) imaging, segmenting the left and right ventricles helps physicians diagnose different heart abnormalities. There are challenges for this task, includi...
computer science
31,224
Lossless Image Compression Algorithm for Wireless Capsule Endoscopy by Content-Based Classification of Image Blocks
cs.CV
Recent advances in capsule endoscopy systems have introduced new methods and capabilities. The capsule endoscopy system, by observing the entire digestive tract, has significantly improved diagnosing gastrointestinal disorders and diseases. The system has challenges such as the need to enhance the quality of the transm...
computer science
31,225
Reversible Image Watermarking for Health Informatics Systems Using Distortion Compensation in Wavelet Domain
cs.CV
Reversible image watermarking guaranties restoration of both original cover and watermark logo from the watermarked image. Capacity and distortion of the image under reversible watermarking are two important parameters. In this study a reversible watermarking is investigated with focusing on increasing the embedding ca...
computer science
31,226
Segmentation of Bleeding Regions in Wireless Capsule Endoscopy Images an Approach for inside Capsule Video Summarization
cs.CV
Wireless capsule endoscopy (WCE) is an effective means of diagnosis of gastrointestinal disorders. Detection of informative scenes by WCE could reduce the length of transmitted videos and can help with the diagnosis. In this paper we propose a simple and efficient method for segmentation of the bleeding regions in WCE ...
computer science
31,227
Semantic Segmentation Refinement by Monte Carlo Region Growing of High Confidence Detections
cs.CV
Despite recent improvements using fully convolutional networks, in general, the segmentation produced by most state-of-the-art semantic segmentation methods does not show satisfactory adherence to the object boundaries. We propose a method to refine the segmentation results generated by such deep learning models. Our m...
computer science
31,228
Liver Segmentation in Abdominal CT Images by Adaptive 3D Region Growing
cs.CV
Automatic liver segmentation plays an important role in computer-aided diagnosis and treatment. Manual segmentation of organs is a difficult and tedious task and so prone to human errors. In this paper, we propose an adaptive 3D region growing with subject-specific conditions. For this aim we use the intensity distribu...
computer science
31,229
Liver segmentation in CT images using three dimensional to two dimensional fully convolutional network
cs.CV
The need for CT scan analysis is growing for pre-diagnosis and therapy of abdominal organs. Automatic organ segmentation of abdominal CT scan can help radiologists analyze the scans faster and segment organ images with fewer errors. However, existing methods are not efficient enough to perform the segmentation process ...
computer science
31,230
Low complexity convolutional neural network for vessel segmentation in portable retinal diagnostic devices
cs.CV
Retinal vessel information is helpful in retinal disease screening and diagnosis. Retinal vessel segmentation provides useful information about vessels and can be used by physicians during intraocular surgery and retinal diagnostic operations. Convolutional neural networks (CNNs) are powerful tools for classification a...
computer science
31,231
Detecting Small, Densely Distributed Objects with Filter-Amplifier Networks and Loss Boosting
cs.CV
Detecting small, densely distributed objects is a significant challenge: small objects often contain less distinctive information compared to larger ones, and finer-grained precision of bounding box boundaries are required. In this paper, we propose two techniques for addressing this problem. First, we estimate the lik...
computer science
31,232
Driver Hand Localization and Grasp Analysis: A Vision-based Real-time Approach
cs.CV
Extracting hand regions and their grasp information from images robustly in real-time is critical for occupants' safety and in-vehicular infotainment applications. It must however, be noted that naturalistic driving scenes suffer from rapidly changing illumination and occlusion. This is aggravated by the fact that hand...
computer science
31,233
xView: Objects in Context in Overhead Imagery
cs.CV
We introduce a new large-scale dataset for the advancement of object detection techniques and overhead object detection research. This satellite imagery dataset enables research progress pertaining to four key computer vision frontiers. We utilize a novel process for geospatial category detection and bounding box annot...
computer science
31,234
End-to-end learning of keypoint detector and descriptor for pose invariant 3D matching
cs.CV
Finding correspondences between images or 3D scans is at the heart of many computer vision and image retrieval applications and is often enabled by matching local keypoint descriptors. Various learning approaches have been applied in the past to different stages of the matching pipeline, considering detector, descripto...
computer science
31,235
Improved Techniques For Weakly-Supervised Object Localization
cs.CV
We propose an improved technique for weakly-supervised object localization. Conventional methods have a limitation that they focus only on most discriminative parts of the target objects. The recent study addressed this issue and resolved this limitation by augmenting the training data for less discriminative parts. To...
computer science
31,236
Glimpse Clouds: Human Activity Recognition from Unstructured Feature Points
cs.CV
We propose a method for human activity recognition from RGB data that does not rely on any pose information during test time and does not explicitly calculate pose information internally. Instead, a visual attention module learns to predict glimpse sequences in each frame. These glimpses correspond to interest points i...
computer science
31,237
Video Person Re-identification by Temporal Residual Learning
cs.CV
In this paper, we propose a novel feature learning framework for video person re-identification (re-ID). The proposed framework largely aims to exploit the adequate temporal information of video sequences and tackle the poor spatial alignment of moving pedestrians. More specifically, for exploiting the temporal informa...
computer science
31,238
Graph-Based Blind Image Deblurring From a Single Photograph
cs.CV
Blind image deblurring, i.e., deblurring without knowledge of the blur kernel, is a highly ill-posed problem. The problem can be solved in two parts: i) estimate a blur kernel from the blurry image, and ii) given estimated blur kernel, de-convolve blurry input to restore the target image. In this paper, we propose a gr...
computer science
31,239
Where's YOUR focus: Personalized Attention
cs.CV
Human visual attention is subjective and biased according to the personal preference of the viewer, however, current works of saliency detection are general and objective, without counting the factor of the observer. This will make the attention prediction for a particular person not accurate enough. In this work, we p...
computer science
31,240
Adversarial Learning for Semi-Supervised Semantic Segmentation
cs.CV
We propose a method for semi-supervised semantic segmentation using the adversarial network. While most existing discriminators are trained to classify input images as real or fake on the image level, we design a discriminator in a fully convolutional manner to differentiate the predicted probability maps from the grou...
computer science
31,241
Non-rigid Object Tracking via Deep Multi-scale Spatial-Temporal Discriminative Saliency Maps
cs.CV
In this paper we propose an effective non-rigid object tracking method based on spatial-temporal consistent saliency detection. In contrast to most existing trackers that use a bounding box to specify the tracked target, the proposed method can extract the accurate regions of the target as tracking output, which achiev...
computer science
31,242
MagnifyMe: Aiding Cross Resolution Face Recognition via Identity Aware Synthesis
cs.CV
Enhancing low resolution images via super-resolution or image synthesis for cross-resolution face recognition has been well studied. Several image processing and machine learning paradigms have been explored for addressing the same. In this research, we propose Synthesis via Deep Sparse Representation algorithm for syn...
computer science
31,243
Discriminative Label Consistent Domain Adaptation
cs.CV
Domain adaptation (DA) is transfer learning which aims to learn an effective predictor on target data from source data despite data distribution mismatch between source and target. We present in this paper a novel unsupervised DA method for cross-domain visual recognition which simultaneously optimizes the three terms ...
computer science
31,244
Classification of Breast Cancer Histology using Deep Learning
cs.CV
Breast Cancer is a major cause of death worldwide among women. Hematoxylin and Eosin (H&E) stained breast tissue samples from biopsies are observed under microscopes for the primary diagnosis of breast cancer. In this paper, we propose a deep learning-based method for classification of H&E stained breast tissue images ...
computer science
31,245
Harmonious Attention Network for Person Re-Identification
cs.CV
Existing person re-identification (re-id) methods either assume the availability of well-aligned person bounding box images as model input or rely on constrained attention selection mechanisms to calibrate misaligned images. They are therefore sub-optimal for re-id matching in arbitrarily aligned person images potentia...
computer science
31,246
ChatPainter: Improving Text to Image Generation using Dialogue
cs.CV
Synthesizing realistic images from text descriptions on a dataset like Microsoft Common Objects in Context (MS COCO), where each image can contain several objects, is a challenging task. Prior work has used text captions to generate images. However, captions might not be informative enough to capture the entire image a...
computer science
31,247
Sleep-deprived Fatigue Pattern Analysis using Large-Scale Selfies from Social Med
cs.CV
The complexities of fatigue have drawn much attention from researchers across various disciplines. Short-term fatigue may cause safety issue while driving; thus, dynamic systems were designed to track driver fatigue. Long-term fatigue could lead to chronic syndromes, and eventually affect individuals physical and psych...
computer science
31,248
Real-Time End-to-End Action Detection with Two-Stream Networks
cs.CV
Two-stream networks have been very successful for solving the problem of action detection. However, prior work using two-stream networks train both streams separately, which prevents the network from exploiting regularities between the two streams. Moreover, unlike the visual stream, the dominant forms of optical flow ...
computer science
31,249
Missing Data Reconstruction in Remote Sensing image with a Unified Spatial-Temporal-Spectral Deep Convolutional Neural Network
cs.CV
Because of the internal malfunction of satellite sensors and poor atmospheric conditions such as thick cloud, the acquired remote sensing data often suffer from missing information, i.e., the data usability is greatly reduced. In this paper, a novel method of missing information reconstruction in remote sensing images ...
computer science
31,250
Adaptive specular reflection detection and inpainting in colonoscopy video frames
cs.CV
Colonoscopy video frames might be contaminated by bright spots with unsaturated values known as specular reflection. Detection and removal of such reflections could enhance the quality of colonoscopy images and facilitate diagnosis procedure. In this paper we propose a novel two-phase method for this purpose, consistin...
computer science
31,251
6D Pose Estimation using an Improved Method based on Point Pair Features
cs.CV
The Point Pair Feature (Drost et al. 2010) has been one of the most successful 6D pose estimation method among model-based approaches as an efficient, integrated and compromise alternative to the traditional local and global pipelines. During the last years, several variations of the algorithm have been proposed. Among...
computer science
31,252
Deep Unsupervised Learning of Visual Similarities
cs.CV
Exemplar learning of visual similarities in an unsupervised manner is a problem of paramount importance to Computer Vision. In this context, however, the recent breakthrough in deep learning could not yet unfold its full potential. With only a single positive sample, a great imbalance between one positive and many nega...
computer science
31,253
Indic Handwritten Script Identification using Offline-Online Multimodal Deep Network
cs.CV
In this paper, we propose a novel approach of word-level Indic script identification using only character-level data in training stage. The advantages of using character level data for training have been outlined in section I. Our method uses a multimodal deep network which takes both offline and online modality of the...
computer science
31,254
An Approach to Vehicle Trajectory Prediction Using Automatically Generated Traffic Maps
cs.CV
Trajectory and intention prediction of traffic participants is an important task in automated driving and crucial for safe interaction with the environment. In this paper, we present a new approach to vehicle trajectory prediction based on automatically generated maps containing statistical information about the behavi...
computer science
31,255
Interactive Image Manipulation with Natural Language Instruction Commands
cs.CV
We propose an interactive image-manipulation system with natural language instruction, which can generate a target image from a source image and an instruction that describes the difference between the source and the target image. The system makes it possible to modify a generated image interactively and make natural l...
computer science
31,256
Comparative Analysis of Unsupervised Algorithms for Breast MRI Lesion Segmentation
cs.CV
Accurate segmentation of breast lesions is a crucial step in evaluating the characteristics of tumors. However, this is a challenging task, since breast lesions have sophisticated shape, topological structure, and variation in the intensity distribution. In this paper, we evaluated the performance of three unsupervised...
computer science
31,257
A Weighted Sparse Sampling and Smoothing Frame Transition Approach for Semantic Fast-Forward First-Person Videos
cs.CV
Thanks to the advances in the technology of low-cost digital cameras and the popularity of the self-recording culture, the amount of visual data on the Internet is going to the opposite side of the available time and patience of the users. Thus, most of the uploaded videos are doomed to be forgotten and unwatched in a ...
computer science
31,258
Longitudinal Face Aging in the Wild - Recent Deep Learning Approaches
cs.CV
Face Aging has raised considerable attentions and interest from the computer vision community in recent years. Numerous approaches ranging from purely image processing techniques to deep learning structures have been proposed in literature. In this paper, we aim to give a review of recent developments of modern deep le...
computer science
31,259
No Blind Spots: Full-Surround Multi-Object Tracking for Autonomous Vehicles using Cameras & LiDARs
cs.CV
Online multi-object tracking (MOT) is extremely important for high-level spatial reasoning and path planning for autonomous and highly-automated vehicles. In this paper, we present a modular framework for tracking multiple objects (vehicles), capable of accepting object proposals from different sensor modalities (visio...
computer science
31,260
Tool Detection and Operative Skill Assessment in Surgical Videos Using Region-Based Convolutional Neural Networks
cs.CV
Five billion people in the world lack access to quality surgical care. Surgeon skill varies dramatically, and many surgical patients suffer complications and avoidable harm. Improving surgical training and feedback would help to reduce the rate of complications, half of which have been shown to be preventable. To do th...
computer science
31,261
Superpixel based Class-Semantic Texton Occurrences for Natural Roadside Vegetation Segmentation
cs.CV
Vegetation segmentation from roadside data is a field that has received relatively little attention in present studies, but can be of great potentials in a wide range of real-world applications, such as road safety assessment and vegetation condition monitoring. In this paper, we present a novel approach that generates...
computer science
31,262
Facial Expression Analysis under Partial Occlusion: A Survey
cs.CV
Automatic machine-based Facial Expression Analysis (FEA) has made substantial progress in the past few decades driven by its importance for applications in psychology, security, health, entertainment and human computer interaction. The vast majority of completed FEA studies are based on non-occluded faces collected in ...
computer science
31,263
Spatially Constrained Location Prior for Scene Parsing
cs.CV
Semantic context is an important and useful cue for scene parsing in complicated natural images with a substantial amount of variations in objects and the environment. This paper proposes Spatially Constrained Location Prior (SCLP) for effective modelling of global and local semantic context in the scene in terms of in...
computer science
31,264
Multispectral Image Intrinsic Decomposition via Low Rank Constraint
cs.CV
Multispectral images contain many clues of surface characteristics of the objects, thus can be widely used in many computer vision tasks, e.g., recolorization and segmentation. However, due to the complex illumination and the geometry structure of natural scenes, the spectra curves of a same surface can look very diffe...
computer science
31,265
Constrained Image Generation Using Binarized Neural Networks with Decision Procedures
cs.CV
We consider the problem of binary image generation with given properties. This problem arises in a number of practical applications, including generation of artificial porous medium for an electrode of lithium-ion batteries, for composed materials, etc. A generated image represents a porous medium and, as such, it is s...
computer science
31,266
Residual Dense Network for Image Super-Resolution
cs.CV
A very deep convolutional neural network (CNN) has recently achieved great success for image super-resolution (SR) and offered hierarchical features as well. However, most deep CNN based SR models do not make full use of the hierarchical features from the original low-resolution (LR) images, thereby achieving relativel...
computer science
31,267
Single Image Super-Resolution via Cascaded Multi-Scale Cross Network
cs.CV
The deep convolutional neural networks have achieved significant improvements in accuracy and speed for single image super-resolution. However, as the depth of network grows, the information flow is weakened and the training becomes harder and harder. On the other hand, most of the models adopt a single-stream structur...
computer science
31,268
A Twofold Siamese Network for Real-Time Object Tracking
cs.CV
Observing that Semantic features learned in an image classification task and Appearance features learned in a similarity matching task complement each other, we build a twofold Siamese network, named SA-Siam, for real-time object tracking. SA-Siam is composed of a semantic branch and an appearance branch. Each branch i...
computer science
31,269
Free-breathing cardiac MRI using bandlimited manifold modelling
cs.CV
We introduce a novel bandlimited manifold framework and an algorithm to recover freebreathing and ungated cardiac MR images from highly undersampled measurements. The image frames in the free breathing and ungated dataset are assumed to be points on a bandlimited manifold. We introduce a novel kernel low-rank algorithm...
computer science
31,270
A Dataset To Evaluate The Representations Learned By Video Prediction Models
cs.CV
We present a parameterized synthetic dataset called Moving Symbols to support the objective study of video prediction networks. Using several instantiations of the dataset in which variation is explicitly controlled, we highlight issues in an existing state-of-the-art approach and propose the use of a performance metri...
computer science
31,271
Detecting Comma-shaped Clouds for Severe Weather Forecasting using Shape and Motion
cs.CV
Meteorologists use shapes and movements of clouds in satellite images as indicators of several major types of severe storms. Satellite imaginary data are in increasingly higher resolution, both spatially and temporally, making it impossible for humans to fully leverage the data in their forecast. Automatic satellite im...
computer science
31,272
Multi-Oriented Scene Text Detection via Corner Localization and Region Segmentation
cs.CV
Previous deep learning based state-of-the-art scene text detection methods can be roughly classified into two categories. The first category treats scene text as a type of general objects and follows general object detection paradigm to localize scene text by regressing the text box locations, but troubled by the arbit...
computer science
31,273
Seeing Small Faces from Robust Anchor's Perspective
cs.CV
This paper introduces a novel anchor design to support anchor-based face detection for superior scale-invariant performance, especially on tiny faces. To achieve this, we explicitly address the problem that anchor-based detectors drop performance drastically on faces with tiny sizes, e.g. less than 16x16 pixels. In thi...
computer science
31,274
Attention-Aware Generative Adversarial Networks (ATA-GANs)
cs.CV
In this work, we present a novel approach for training Generative Adversarial Networks (GANs). Using the attention maps produced by a Teacher- Network we are able to improve the quality of the generated images as well as perform weakly object localization on the generated images. To this end, we generate images of HEp-...
computer science
31,275
Adversarially Learned One-Class Classifier for Novelty Detection
cs.CV
Novelty detection is the process of identifying the observation(s) that differ in some respect from the training observations (the target class). In reality, the novelty class is often absent during training, poorly sampled or not well defined. Therefore, one-class classifiers can efficiently model such problems. Howev...
computer science
31,276
PBGen: Partial Binarization of Deconvolution-Based Generators for Edge Intelligence
cs.CV
This work explores the binarization of the deconvolution-based generator in a GAN for memory saving and speedup of image construction. Our study suggests that different from convolutional neural networks (including the discriminator) where all layers can be binarized, only some of the layers in the generator can be bin...
computer science
31,277
Photographic Text-to-Image Synthesis with a Hierarchically-nested Adversarial Network
cs.CV
This paper presents a novel method to deal with the challenging task of generating photographic images conditioned on semantic image descriptions. Our method introduces accompanying hierarchical-nested adversarial objectives inside the network hierarchies, which regularize mid-level representations and assist generator...
computer science
31,278
Depth Masked Discriminative Correlation Filter
cs.CV
Depth information provides a strong cue for occlusion detection and handling, but has been largely omitted in generic object tracking until recently due to lack of suitable benchmark datasets and applications. In this work, we propose a Depth Masked Discriminative Correlation Filter (DM-DCF) which adopts novel depth se...
computer science
31,279
2D/3D Pose Estimation and Action Recognition using Multitask Deep Learning
cs.CV
Action recognition and human pose estimation are closely related but both problems are generally handled as distinct tasks in the literature. In this work, we propose a multitask framework for jointly 2D and 3D pose estimation from still images and human action recognition from video sequences. We show that a single ar...
computer science
31,280
Using Curvilinear Features in Focus for Registering a Single Image to a 3D Object
cs.CV
In the context of 2D/3D registration, this paper introduces an approach that allows to match features detected in two different modalities: photographs and 3D models, by using a common 2D reprensentation. More precisely, 2D images are matched with a set of depth images, representing the 3D model. After introducing the ...
computer science
31,281
Classification of breast cancer histology images using transfer learning
cs.CV
Breast cancer is one of the leading causes of mortality in women. Early detection and treatment are imperative for improving survival rates, which have steadily increased in recent years as a result of more sophisticated computer-aided-diagnosis (CAD) systems. A critical component of breast cancer diagnosis relies on h...
computer science
31,282
A Robust Real-Time Automatic License Plate Recognition based on the YOLO Detector
cs.CV
Automatic License Plate Recognition (ALPR) has been a frequent topic of research due to many practical applications. However, many of the current solutions are still not robust in real-world situations, commonly depending on many constraints. This paper presents a robust and efficient ALPR system based on the state-of-...
computer science
31,283
i3PosNet: Instrument Pose Estimation from X-Ray
cs.CV
Performing delicate Minimally Invasive Surgeries (MIS) forces surgeons to accurately assess the position and orientation (pose) of surgical instruments. In current practice, this pose information is provided by conventional tracking systems (optical and electro-magnetic). Two challenges render these systems inadequate ...
computer science
31,284
A Resilient Image Matching Method with an Affine Invariant Feature Detector and Descriptor
cs.CV
Image feature matching is to seek, localize and identify the similarities across the images. The matched local features between different images can indicate the similarities of their content. Resilience of image feature matching to large view point changes is challenging for a lot of applications such as 3D object rec...
computer science
31,285
Translating and Segmenting Multimodal Medical Volumes with Cycle- and Shape-Consistency Generative Adversarial Network
cs.CV
Synthesized medical images have several important applications, e.g., as an intermedium in cross-modality image registration and as supplementary training samples to boost the generalization capability of a classifier. Especially, synthesized computed tomography (CT) data can provide X-ray attenuation map for radiation...
computer science
31,286
Semantic segmentation of trajectories with agent models
cs.CV
In many cases, such as trajectories clustering and classification, we often divide a trajectory into segments as preprocessing. In this paper, we propose a trajectory semantic segmentation method based on learned behavior models. In the proposed method, we learn some behavior models from video sequences. Next, using le...
computer science
31,287
Directional Statistics-based Deep Metric Learning for Image Classification and Retrieval
cs.CV
Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in the embedding space has been used to improve the performance of several DDML met...
computer science
31,288
Single-View Food Portion Estimation: Learning Image-to-Energy Mappings Using Generative Adversarial Networks
cs.CV
Due to the growing concern of chronic diseases and other health problems related to diet, there is a need to develop accurate methods to estimate an individual's food and energy intake. Measuring accurate dietary intake is an open research problem. In particular, accurate food portion estimation is challenging since th...
computer science
31,289
Recurrent Residual Module for Fast Inference in Videos
cs.CV
Deep convolutional neural networks (CNNs) have made impressive progress in many video recognition tasks such as video pose estimation and video object detection. However, CNN inference on video is computationally expensive due to processing dense frames individually. In this work, we propose a framework called Recurren...
computer science
31,290
ReHAR: Robust and Efficient Human Activity Recognition
cs.CV
Designing a scheme that can achieve a good performance in predicting single person activities and group activities is a challenging task. In this paper, we propose a novel robust and efficient human activity recognition scheme called ReHAR, which can be used to handle single person activities and group activities predi...
computer science
31,291
Mixed Supervised Object Detection with Robust Objectness Transfer
cs.CV
In this paper, we consider the problem of leveraging existing fully labeled categories to improve the weakly supervised detection (WSD) of new object categories, which we refer to as mixed supervised detection (MSD). Different from previous MSD methods that directly transfer the pre-trained object detectors from existi...
computer science
31,292
Spatio-Temporal Graph Convolution for Skeleton Based Action Recognition
cs.CV
Variations of human body skeletons may be considered as dynamic graphs, which are generic data representation for numerous real-world applications. In this paper, we propose a spatio-temporal graph convolution (STGC) approach for assembling the successes of local convolutional filtering and sequence learning ability of...
computer science
31,293
Real-World Repetition Estimation by Div, Grad and Curl
cs.CV
We consider the problem of estimating repetition in video, such as performing push-ups, cutting a melon or playing violin. Existing work shows good results under the assumption of static and stationary periodicity. As realistic video is rarely perfectly static and stationary, the often preferred Fourier-based measureme...
computer science
31,294
Fusion of Multispectral Data Through Illumination-aware Deep Neural Networks for Pedestrian Detection
cs.CV
Multispectral pedestrian detection has received extensive attention in recent years as a promising solution to facilitate robust human target detection for around-the-clock applications (e.g. security surveillance and autonomous driving). In this paper, we demonstrate illumination information encoded in multispectral i...
computer science
31,295
Neural Stereoscopic Image Style Transfer
cs.CV
Neural style transfer is an emerging technique which is able to endow daily-life images with attractive artistic styles. Previous work has succeeded in applying convolutional neural network (CNN) to style transfer for monocular images or videos. However, style transfer for stereoscopic images is still a missing piece. ...
computer science
31,296
3D Object Super-Resolution
cs.CV
We consider the problem of scaling deep generative shape models to high-resolution. To this end, we introduce a novel method for the fast up-sampling of 3D objects in voxel space by super-resolution on the six orthographic depth projections. We demonstrate the training of object-specific super-resolution CNNs for depth...
computer science
31,297
Deep Learning Architectures for Face Recognition in Video Surveillance
cs.CV
Face recognition (FR) systems for video surveillance (VS) applications attempt to accurately detect the presence of target individuals over a distributed network of cameras. In video-based FR systems, facial models of target individuals are designed a priori during enrollment using a limited number of reference still i...
computer science
31,298
Simultaneous Traffic Sign Detection and Boundary Estimation using Convolutional Neural Network
cs.CV
We propose a novel traffic sign detection system that simultaneously estimates the location and precise boundary of traffic signs using convolutional neural network (CNN). Estimating the precise boundary of traffic signs is important in navigation systems for intelligent vehicles where traffic signs can be used as 3D l...
computer science
31,299
Generating High Quality Visible Images from SAR Images Using CNNs
cs.CV
We propose a novel approach for generating high quality visible-like images from Synthetic Aperture Radar (SAR) images using Deep Convolutional Generative Adversarial Network (GAN) architectures. The proposed approach is based on a cascaded network of convolutional neural nets (CNNs) for despeckling and image colorizat...
computer science
31,300
Improving OCR Accuracy on Early Printed Books by combining Pretraining, Voting, and Active Learning
cs.CV
We combine three methods which significantly improve the OCR accuracy of OCR models trained on early printed books: (1) The pretraining method utilizes the information stored in already existing models trained on a variety of typesets (mixed models) instead of starting the training from scratch. (2) Performing cross fo...
computer science
31,301
CSRNet: Dilated Convolutional Neural Networks for Understanding the Highly Congested Scenes
cs.CV
We propose a network for Congested Scene Recognition called CSRNet to provide a data-driven and deep learning method that can understand highly congested scenes and perform accurate count estimation as well as present high-quality density maps. The proposed CSRNet is composed of two major components: a convolutional ne...
computer science