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28,802
Deep Feature Learning via Structured Graph Laplacian Embedding for Person Re-Identification
cs.CV
Learning the distance metric between pairs of examples is of great importance for visual recognition, especially for person re-identification (Re-Id). Recently, the contrastive and triplet loss are proposed to enhance the discriminative power of the deeply learned features, and have achieved remarkable success. As can ...
computer science
28,803
Graph-Theoretic Spatiotemporal Context Modeling for Video Saliency Detection
cs.CV
As an important and challenging problem in computer vision, video saliency detection is typically cast as a spatiotemporal context modeling problem over consecutive frames. As a result, a key issue in video saliency detection is how to effectively capture the intrinsical properties of atomic video structures as well as...
computer science
28,804
Detecting Semantic Parts on Partially Occluded Objects
cs.CV
In this paper, we address the task of detecting semantic parts on partially occluded objects. We consider a scenario where the model is trained using non-occluded images but tested on occluded images. The motivation is that there are infinite number of occlusion patterns in real world, which cannot be fully covered in ...
computer science
28,805
Multiple-Kernel Local-Patch Descriptor
cs.CV
We propose a multiple-kernel local-patch descriptor based on efficient match kernels of patch gradients. It combines two parametrizations of gradient position and direction, each parametrization provides robustness to a different type of patch miss-registration: polar parametrization for noise in the patch dominant ori...
computer science
28,806
Improving Robustness of Feature Representations to Image Deformations using Powered Convolution in CNNs
cs.CV
In this work, we address the problem of improvement of robustness of feature representations learned using convolutional neural networks (CNNs) to image deformation. We argue that higher moment statistics of feature distributions could be shifted due to image deformations, and the shift leads to degrade of performance ...
computer science
28,807
ssEMnet: Serial-section Electron Microscopy Image Registration using a Spatial Transformer Network with Learned Features
cs.CV
The alignment of serial-section electron microscopy (ssEM) images is critical for efforts in neuroscience that seek to reconstruct neuronal circuits. However, each ssEM plane contains densely packed structures that vary from one section to the next, which makes matching features across images a challenge. Advances in d...
computer science
28,808
Motion-Appearance Interactive Encoding for Object Segmentation in Unconstrained Videos
cs.CV
We present a novel method of integrating motion and appearance cues for foreground object segmentation in unconstrained videos. Unlike conventional methods encoding motion and appearance patterns individually, our method puts particular emphasis on their mutual assistance. Specifically, we propose using an interactivel...
computer science
28,809
Analyzing First-Person Stories Based on Socializing, Eating and Sedentary Patterns
cs.CV
First-person stories can be analyzed by means of egocentric pictures acquired throughout the whole active day with wearable cameras. This manuscript presents an egocentric dataset with more than 45,000 pictures from four people in different environments such as working or studying. All the images were manually labeled ...
computer science
28,810
Spatiotemporal Modeling for Crowd Counting in Videos
cs.CV
Region of Interest (ROI) crowd counting can be formulated as a regression problem of learning a mapping from an image or a video frame to a crowd density map. Recently, convolutional neural network (CNN) models have achieved promising results for crowd counting. However, even when dealing with video data, CNN-based met...
computer science
28,811
Enhancing Convolutional Neural Networks for Face Recognition with Occlusion Maps and Batch Triplet Loss
cs.CV
Despite the recent success of convolutional neural networks for computer vision applications, unconstrained face recognition remains a challenge. In this work, we make two contributions to the field. Firstly, we consider the problem of face recognition with partial occlusions and show how current approaches might suffe...
computer science
28,812
Residual Conv-Deconv Grid Network for Semantic Segmentation
cs.CV
This paper presents GridNet, a new Convolutional Neural Network (CNN) architecture for semantic image segmentation (full scene labelling). Classical neural networks are implemented as one stream from the input to the output with subsampling operators applied in the stream in order to reduce the feature maps size and to...
computer science
28,813
Bottom-Up and Top-Down Attention for Image Captioning and Visual Question Answering
cs.CV
Top-down visual attention mechanisms have been used extensively in image captioning and visual question answering (VQA) to enable deeper image understanding through fine-grained analysis and even multiple steps of reasoning. In this work, we propose a combined bottom-up and top-down attention mechanism that enables att...
computer science
28,814
Automatic Liver Segmentation Using an Adversarial Image-to-Image Network
cs.CV
Automatic liver segmentation in 3D medical images is essential in many clinical applications, such as pathological diagnosis of hepatic diseases, surgical planning, and postoperative assessment. However, it is still a very challenging task due to the complex background, fuzzy boundary, and various appearance of liver. ...
computer science
28,815
Relative Depth Order Estimation Using Multi-scale Densely Connected Convolutional Networks
cs.CV
We study the problem of estimating the relative depth order of point pairs in a monocular image. Recent advances mainly focus on using deep convolutional neural networks (DCNNs) to learn and infer the ordinal information from multiple contextual information of the points pair such as global scene context, local context...
computer science
28,816
Learning Bag-of-Features Pooling for Deep Convolutional Neural Networks
cs.CV
Convolutional Neural Networks (CNNs) are well established models capable of achieving state-of-the-art classification accuracy for various computer vision tasks. However, they are becoming increasingly larger, using millions of parameters, while they are restricted to handling images of fixed size. In this paper, a qua...
computer science
28,817
Emotional Filters: Automatic Image Transformation for Inducing Affect
cs.CV
Current image transformation and recoloring algorithms try to introduce artistic effects in the photographed images, based on user input of target image(s) or selection of pre-designed filters. These manipulations, although intended to enhance the impact of an image on the viewer, do not include the option of image tra...
computer science
28,818
Patch-based Carcinoma Detection on Confocal Laser Endomicroscopy Images - A Cross-Site Robustness Assessment
cs.CV
Deep learning technologies such as convolutional neural networks (CNN) provide powerful methods for image recognition and have recently been employed in the field of automated carcinoma detection in confocal laser endomicroscopy (CLE) images. CLE is a (sub-)surface microscopic imaging technique that reaches magnificati...
computer science
28,819
A Unified Joint Matrix Factorization Framework for Data Integration
cs.CV
Nonnegative matrix factorization (NMF) is a powerful tool in data exploratory analysis by discovering the hidden features and part-based patterns from high-dimensional data. NMF and its variants have been successfully applied into diverse fields such as pattern recognition, signal processing, data mining, bioinformatic...
computer science
28,820
Efficient Yet Deep Convolutional Neural Networks for Semantic Segmentation
cs.CV
Semantic Segmentation using deep convolutional neural network pose more complex challenge for any GPU intensive work, as it has to compute million of parameters resulting to huge consumption of memory. Moreover, extracting finer features and conducting supervised training tends to increase the complexity furthermore. W...
computer science
28,821
Fast Deep Matting for Portrait Animation on Mobile Phone
cs.CV
Image matting plays an important role in image and video editing. However, the formulation of image matting is inherently ill-posed. Traditional methods usually employ interaction to deal with the image matting problem with trimaps and strokes, and cannot run on the mobile phone in real-time. In this paper, we propose ...
computer science
28,822
Cascaded Scene Flow Prediction using Semantic Segmentation
cs.CV
Given two consecutive frames from a pair of stereo cameras, 3D scene flow methods simultaneously estimate the 3D geometry and motion of the observed scene. Many existing approaches use superpixels for regularization, but may predict inconsistent shapes and motions inside rigidly moving objects. We instead assume that s...
computer science
28,823
Structure-Preserving Image Super-resolution via Contextualized Multi-task Learning
cs.CV
Single image super resolution (SR), which refers to reconstruct a higher-resolution (HR) image from the observed low-resolution (LR) image, has received substantial attention due to its tremendous application potentials. Despite the breakthroughs of recently proposed SR methods using convolutional neural networks (CNNs...
computer science
28,824
RankIQA: Learning from Rankings for No-reference Image Quality Assessment
cs.CV
We propose a no-reference image quality assessment (NR-IQA) approach that learns from rankings (RankIQA). To address the problem of limited IQA dataset size, we train a Siamese Network to rank images in terms of image quality by using synthetically generated distortions for which relative image quality is known. These ...
computer science
28,825
Modelling the Scene Dependent Imaging in Cameras with a Deep Neural Network
cs.CV
We present a novel deep learning framework that models the scene dependent image processing inside cameras. Often called as the radiometric calibration, the process of recovering RAW images from processed images (JPEG format in the sRGB color space) is essential for many computer vision tasks that rely on physically ac...
computer science
28,826
Deep Interactive Region Segmentation and Captioning
cs.CV
With recent innovations in dense image captioning, it is now possible to describe every object of the scene with a caption while objects are determined by bounding boxes. However, interpretation of such an output is not trivial due to the existence of many overlapping bounding boxes. Furthermore, in current captioning ...
computer science
28,827
Product recognition in store shelves as a sub-graph isomorphism problem
cs.CV
The arrangement of products in store shelves is carefully planned to maximize sales and keep customers happy. However, verifying compliance of real shelves to the ideal layout is a costly task routinely performed by the store personnel. In this paper, we propose a computer vision pipeline to recognize products on shelv...
computer science
28,828
A Novel Transfer Learning Approach upon Hindi, Arabic, and Bangla Numerals using Convolutional Neural Networks
cs.CV
Increased accuracy in predictive models for handwritten character recognition will open up new frontiers for optical character recognition. Major drawbacks of predictive machine learning models are headed by the elongated training time taken by some models, and the requirement that training and test data be in the same...
computer science
28,829
Reduction of Overfitting in Diabetes Prediction Using Deep Learning Neural Network
cs.CV
Augmented accuracy in prediction of diabetes will open up new frontiers in health prognostics. Data overfitting is a performance-degrading issue in diabetes prognosis. In this study, a prediction system for the disease of diabetes is pre-sented where the issue of overfitting is minimized by using the dropout method. De...
computer science
28,830
A Harmony Search Based Wrapper Feature Selection Method for Holistic Bangla word Recognition
cs.CV
A lot of search approaches have been explored for the selection of features in pattern classification domain in order to discover significant subset of the features which produces better accuracy. In this paper, we introduced a Harmony Search (HS) algorithm based feature selection method for feature dimensionality redu...
computer science
28,831
Detecting and classifying lesions in mammograms with Deep Learning
cs.CV
In the last two decades Computer Aided Diagnostics (CAD) systems were developed to help radiologists analyze screening mammograms. The benefits of current CAD technologies appear to be contradictory and they should be improved to be ultimately considered useful. Since 2012 deep convolutional neural networks (CNN) have ...
computer science
28,832
A Guided Spatial Transformer Network for Histology Cell Differentiation
cs.CV
Identification and counting of cells and mitotic figures is a standard task in diagnostic histopathology. Due to the large overall cell count on histological slides and the potential sparse prevalence of some relevant cell types or mitotic figures, retrieving annotation data for sufficient statistics is a tedious task ...
computer science
28,833
Interpatient Respiratory Motion Model Transfer for Virtual Reality Simulations of Liver Punctures
cs.CV
Current virtual reality (VR) training simulators of liver punctures often rely on static 3D patient data and use an unrealistic (sinusoidal) periodic animation of the respiratory movement. Existing methods for the animation of breathing motion support simple mathematical or patient-specific, estimated breathing models....
computer science
28,834
Optimizing Filter Size in Convolutional Neural Networks for Facial Action Unit Recognition
cs.CV
Recognizing facial action units (AUs) during spontaneous facial displays is a challenging problem. Most recently, Convolutional Neural Networks (CNNs) have shown promise for facial AU recognition, where predefined and fixed convolution filter sizes are employed. In order to achieve the best performance, the optimal fil...
computer science
28,835
Learning a Target Sample Re-Generator for Cross-Database Micro-Expression Recognition
cs.CV
In this paper, we investigate the cross-database micro-expression recognition problem, where the training and testing samples are from two different micro-expression databases. Under this setting, the training and testing samples would have different feature distributions and hence the performance of most existing micr...
computer science
28,836
Context-aware Single-Shot Detector
cs.CV
SSD is one of the state-of-the-art object detection algorithms, and it combines high detection accuracy with real-time speed. However, it is widely recognized that SSD is less accurate in detecting small objects compared to large objects, because it ignores the context from outside the proposal boxes. In this paper, we...
computer science
28,837
A Jointly Learned Deep Architecture for Facial Attribute Analysis and Face Detection in the Wild
cs.CV
Facial attribute analysis in the real world scenario is very challenging mainly because of complex face variations. Existing works of analyzing face attributes are mostly based on the cropped and aligned face images. However, this result in the capability of attribute prediction heavily relies on the preprocessing of f...
computer science
28,838
Exploiting Web Images for Weakly Supervised Object Detection
cs.CV
In recent years, the performance of object detection has advanced significantly with the evolving deep convolutional neural networks. However, the state-of-the-art object detection methods still rely on accurate bounding box annotations that require extensive human labelling. Object detection without bounding box annot...
computer science
28,839
Algebraic Relations and Triangulation of Unlabeled Image Points
cs.CV
In multiview geometry when correspondences among multiple views are unknown the image points can be understood as being unlabeled. This is a common problem in computer vision. We give a novel approach to handle such a situation by regarding unlabeled point configurations as points on the Chow variety $\text{Sym}_m(\mat...
computer science
28,840
A Comparative Study of the Clinical use of Motion Analysis from Kinect Skeleton Data
cs.CV
The analysis of human motion as a clinical tool can bring many benefits such as the early detection of disease and the monitoring of recovery, so in turn helping people to lead independent lives. However, it is currently under used. Developments in depth cameras, such as Kinect, have opened up the use of motion analysi...
computer science
28,841
Representation-Aggregation Networks for Segmentation of Multi-Gigapixel Histology Images
cs.CV
Convolutional Neural Network (CNN) models have become the state-of-the-art for most computer vision tasks with natural images. However, these are not best suited for multi-gigapixel resolution Whole Slide Images (WSIs) of histology slides due to large size of these images. Current approaches construct smaller patches f...
computer science
28,842
Food Ingredients Recognition through Multi-label Learning
cs.CV
Automatically constructing a food diary that tracks the ingredients consumed can help people follow a healthy diet. We tackle the problem of food ingredients recognition as a multi-label learning problem. We propose a method for adapting a highly performing state of the art CNN in order to act as a multi-label predicto...
computer science
28,843
Serious Games Application for Memory Training Using Egocentric Images
cs.CV
Mild cognitive impairment is the early stage of several neurodegenerative diseases, such as Alzheimer's. In this work, we address the use of lifelogging as a tool to obtain pictures from a patient's daily life from an egocentric point of view. We propose to use them in combination with serious games as a way to provide...
computer science
28,844
STN-OCR: A single Neural Network for Text Detection and Text Recognition
cs.CV
Detecting and recognizing text in natural scene images is a challenging, yet not completely solved task. In re- cent years several new systems that try to solve at least one of the two sub-tasks (text detection and text recognition) have been proposed. In this paper we present STN-OCR, a step towards semi-supervised ne...
computer science
28,845
Anisotropic EM Segmentation by 3D Affinity Learning and Agglomeration
cs.CV
The field of connectomics has recently produced neuron wiring diagrams from relatively large brain regions from multiple animals. Most of these neural reconstructions were computed from isotropic (e.g., FIBSEM) or near isotropic (e.g., SBEM) data. In spite of the remarkable progress on algorithms in recent years, autom...
computer science
28,846
Concise Radiometric Calibration Using The Power of Ranking
cs.CV
Compared with raw images, the more common JPEG images are less useful for machine vision algorithms and professional photographers because JPEG-sRGB does not preserve a linear relation between pixel values and the light measured from the scene. A camera is said to be radiometrically calibrated if there is a computation...
computer science
28,847
Handwritten character recognition using some (anti)-diagonal structural features
cs.CV
In this paper, we present a methodology for off-line handwritten character recognition. The proposed methodology relies on a new feature extraction technique based on structural characteristics, histograms and profiles. As novelty, we propose the extraction of new eight histograms and four profiles from the $32\times 3...
computer science
28,848
Building Detection from Satellite Images on a Global Scale
cs.CV
In the last several years, remote sensing technology has opened up the possibility of performing large scale building detection from satellite imagery. Our work is some of the first to create population density maps from building detection on a large scale. The scale of our work on population density estimation via hig...
computer science
28,849
Understanding Aesthetics in Photography using Deep Convolutional Neural Networks
cs.CV
Evaluating aesthetic value of digital photographs is a challenging task, mainly due to numerous factors that need to be taken into account and subjective manner of this process. In this paper, we propose to approach this problem using deep convolutional neural networks. Using a dataset of over 1.7 million photos collec...
computer science
28,850
Efficient Deformable Shape Correspondence via Kernel Matching
cs.CV
We present a method to match three dimensional shapes under non-isometric deformations, topology changes and partiality. We formulate the problem as matching between a set of pair-wise and point-wise descriptors, imposing a continuity prior on the mapping, and propose a projected descent optimization procedure inspired...
computer science
28,851
A Locally Adapting Technique for Boundary Detection using Image Segmentation
cs.CV
Rapid growth in the field of quantitative digital image analysis is paving the way for researchers to make precise measurements about objects in an image. To compute quantities from the image such as the density of compressed materials or the velocity of a shockwave, we must determine object boundaries. Images containi...
computer science
28,852
Learning from Video and Text via Large-Scale Discriminative Clustering
cs.CV
Discriminative clustering has been successfully applied to a number of weakly-supervised learning tasks. Such applications include person and action recognition, text-to-video alignment, object co-segmentation and colocalization in videos and images. One drawback of discriminative clustering, however, is its limited sc...
computer science
28,853
Benchmarking 6DOF Outdoor Visual Localization in Changing Conditions
cs.CV
Visual localization enables autonomous vehicles to navigate in their surroundings and augmented reality applications to link virtual to real worlds. Practical visual localization approaches need to be robust to a wide variety of viewing condition, including day-night changes, as well as weather and seasonal variations,...
computer science
28,854
Object Detection of Satellite Images Using Multi-Channel Higher-order Local Autocorrelation
cs.CV
The Earth observation satellites have been monitoring the earth's surface for a long time, and the images taken by the satellites contain large amounts of valuable data. However, it is extremely hard work to manually analyze such huge data. Thus, a method of automatic object detection is needed for satellite images to ...
computer science
28,855
MixedPeds: Pedestrian Detection in Unannotated Videos using Synthetically Generated Human-agents for Training
cs.CV
We present a new method for training pedestrian detectors on an unannotated set of images. We produce a mixed reality dataset that is composed of real-world background images and synthetically generated static human-agents. Our approach is general, robust, and makes no other assumptions about the unannotated dataset re...
computer science
28,856
Fine-Pruning: Joint Fine-Tuning and Compression of a Convolutional Network with Bayesian Optimization
cs.CV
When approaching a novel visual recognition problem in a specialized image domain, a common strategy is to start with a pre-trained deep neural network and fine-tune it to the specialized domain. If the target domain covers a smaller visual space than the source domain used for pre-training (e.g. ImageNet), the fine-tu...
computer science
28,857
Deep Co-Space: Sample Mining Across Feature Transformation for Semi-Supervised Learning
cs.CV
Aiming at improving performance of visual classification in a cost-effective manner, this paper proposes an incremental semi-supervised learning paradigm called Deep Co-Space (DCS). Unlike many conventional semi-supervised learning methods usually performing within a fixed feature space, our DCS gradually propagates in...
computer science
28,858
Learning Pixel-Distribution Prior with Wider Convolution for Image Denoising
cs.CV
In this work, we explore an innovative strategy for image denoising by using convolutional neural networks (CNN) to learn pixel-distribution from noisy data. By increasing CNN's width with large reception fields and more channels in each layer, CNNs can reveal the ability to learn pixel-distribution, which is a prior e...
computer science
28,859
Localizing Actions from Video Labels and Pseudo-Annotations
cs.CV
The goal of this paper is to determine the spatio-temporal location of actions in video. Where training from hard to obtain box annotations is the norm, we propose an intuitive and effective algorithm that localizes actions from their class label only. We are inspired by recent work showing that unsupervised action pro...
computer science
28,860
Spatial-Aware Object Embeddings for Zero-Shot Localization and Classification of Actions
cs.CV
We aim for zero-shot localization and classification of human actions in video. Where traditional approaches rely on global attribute or object classification scores for their zero-shot knowledge transfer, our main contribution is a spatial-aware object embedding. To arrive at spatial awareness, we build our embedding ...
computer science
28,861
Group Re-Identification via Unsupervised Transfer of Sparse Features Encoding
cs.CV
Person re-identification is best known as the problem of associating a single person that is observed from one or more disjoint cameras. The existing literature has mainly addressed such an issue, neglecting the fact that people usually move in groups, like in crowded scenarios. We believe that the additional informati...
computer science
28,862
A weighting strategy for Active Shape Models
cs.CV
Active Shape Models (ASM) are an iterative segmentation technique to find a landmark-based contour of an object. In each iteration, a least-squares fit of a plausible shape to some detected target landmarks is determined. Finding these targets is a critical step: some landmarks are more reliably detected than others, a...
computer science
28,863
The WILDTRACK Multi-Camera Person Dataset
cs.CV
People detection methods are highly sensitive to the perpetual occlusions among the targets. As multi-camera set-ups become more frequently encountered, joint exploitation of the across views information would allow for improved detection performances. We provide a large-scale HD dataset named WILDTRACK which finally m...
computer science
28,864
Sparse Deep Nonnegative Matrix Factorization
cs.CV
Nonnegative matrix factorization is a powerful technique to realize dimension reduction and pattern recognition through single-layer data representation learning. Deep learning, however, with its carefully designed hierarchical structure, is able to combine hidden features to form more representative features for patte...
computer science
28,865
FontCode: Embedding Information in Text Documents using Glyph Perturbation
cs.CV
We introduce FontCode, an information embedding technique for text documents. Provided a text document with specific fonts, our method embeds user-specified information in the text by perturbing the glyphs of text characters while preserving the text content. We devise an algorithm to chooses unobtrusive yet machine-re...
computer science
28,866
Visual Relationship Detection with Internal and External Linguistic Knowledge Distillation
cs.CV
Understanding visual relationships involves identifying the subject, the object, and a predicate relating them. We leverage the strong correlations between the predicate and the (subj,obj) pair (both semantically and spatially) to predict the predicates conditioned on the subjects and the objects. Modeling the three en...
computer science
28,867
Weakly-supervised learning of visual relations
cs.CV
This paper introduces a novel approach for modeling visual relations between pairs of objects. We call relation a triplet of the form (subject, predicate, object) where the predicate is typically a preposition (eg. 'under', 'in front of') or a verb ('hold', 'ride') that links a pair of objects (subject, object). Learni...
computer science
28,868
FCN-rLSTM: Deep Spatio-Temporal Neural Networks for Vehicle Counting in City Cameras
cs.CV
In this paper, we develop deep spatio-temporal neural networks to sequentially count vehicles from low quality videos captured by city cameras (citycams). Citycam videos have low resolution, low frame rate, high occlusion and large perspective, making most existing methods lose their efficacy. To overcome limitations o...
computer science
28,869
Deep Feature Consistent Deep Image Transformations: Downscaling, Decolorization and HDR Tone Mapping
cs.CV
Building on crucial insights into the determining factors of the visual integrity of an image and the property of deep convolutional neural network (CNN), we have developed the Deep Feature Consistent Deep Image Transformation (DFC-DIT) framework which unifies challenging one-to-many mapping image processing problems s...
computer science
28,870
Recurrent Scale Approximation for Object Detection in CNN
cs.CV
Since convolutional neural network (CNN) lacks an inherent mechanism to handle large scale variations, we always need to compute feature maps multiple times for multi-scale object detection, which has the bottleneck of computational cost in practice. To address this, we devise a recurrent scale approximation (RSA) to c...
computer science
28,871
Synthetic Database for Evaluation of General, Fundamental Biometric Principles
cs.CV
We create synthetic biometric databases to study general, fundamental, biometric principles. First, we check the validity of the synthetic database design by comparing it to real data in terms of biometric performance. The real data used for this validity check was from an eye-movement related biometric database. Next,...
computer science
28,872
Improved Adversarial Systems for 3D Object Generation and Reconstruction
cs.CV
This paper describes a new approach for training generative adversarial networks (GAN) to understand the detailed 3D shape of objects. While GANs have been used in this domain previously, they are notoriously hard to train, especially for the complex joint data distribution over 3D objects of many categories and orient...
computer science
28,873
Discover and Learn New Objects from Documentaries
cs.CV
Despite the remarkable progress in recent years, detecting objects in a new context remains a challenging task. Detectors learned from a public dataset can only work with a fixed list of categories, while training from scratch usually requires a large amount of training data with detailed annotations. This work aims to...
computer science
28,874
ScanNet: A Fast and Dense Scanning Framework for Metastatic Breast Cancer Detection from Whole-Slide Images
cs.CV
Lymph node metastasis is one of the most significant diagnostic indicators in breast cancer, which is traditionally observed under the microscope by pathologists. In recent years, computerized histology diagnosis has become one of the most rapidly expanding fields in medical image computing, which alleviates pathologis...
computer science
28,875
Occlusion Handling using Semantic Segmentation and Visibility-Based Rendering for Mixed Reality
cs.CV
Real-time occlusion handling is a major problem in outdoor mixed reality system because it requires great computational cost mainly due to the complexity of the scene. Using only segmentation, it is difficult to accurately render a virtual object occluded by complex objects such as trees, bushes etc. In this paper, we ...
computer science
28,876
CNN-based Cascaded Multi-task Learning of High-level Prior and Density Estimation for Crowd Counting
cs.CV
Estimating crowd count in densely crowded scenes is an extremely challenging task due to non-uniform scale variations. In this paper, we propose a novel end-to-end cascaded network of CNNs to jointly learn crowd count classification and density map estimation. Classifying crowd count into various groups is tantamount t...
computer science
28,877
A Novel Approach for Image Segmentation based on Histograms computed from Hue-data
cs.CV
Computer Vision is growing day by day in terms of user specific applications. The first step of any such application is segmenting an image. In this paper, we propose a novel and grass-root level image segmentation algorithm for cases in which the background has uniform color distribution. This algorithm can be used fo...
computer science
28,878
Deep Multi-View Learning with Stochastic Decorrelation Loss
cs.CV
Multi-view learning aims to learn an embedding space where multiple views are either maximally correlated for cross-view recognition, or decorrelated for latent factor disentanglement. A key challenge for deep multi-view representation learning is scalability. To correlate or decorrelate multi-view signals, the covaria...
computer science
28,879
Recurrent 3D Pose Sequence Machines
cs.CV
3D human articulated pose recovery from monocular image sequences is very challenging due to the diverse appearances, viewpoints, occlusions, and also the human 3D pose is inherently ambiguous from the monocular imagery. It is thus critical to exploit rich spatial and temporal long-range dependencies among body joints ...
computer science
28,880
Scene Graph Generation from Objects, Phrases and Region Captions
cs.CV
Object detection, scene graph generation and region captioning, which are three scene understanding tasks at different semantic levels, are tied together: scene graphs are generated on top of objects detected in an image with their pairwise relationship predicted, while region captioning gives a language description of...
computer science
28,881
Analysis and Optimization of Convolutional Neural Network Architectures
cs.CV
Convolutional Neural Networks (CNNs) dominate various computer vision tasks since Alex Krizhevsky showed that they can be trained effectively and reduced the top-5 error from 26.2 % to 15.3 % on the ImageNet large scale visual recognition challenge. Many aspects of CNNs are examined in various publications, but literat...
computer science
28,882
Camera Relocalization by Computing Pairwise Relative Poses Using Convolutional Neural Network
cs.CV
We propose a new deep learning based approach for camera relocalization. Our approach localizes a given query image by using a convolutional neural network (CNN) for first retrieving similar database images and then predicting the relative pose between the query and the database images, whose poses are known. The camer...
computer science
28,883
Synthesis of Positron Emission Tomography (PET) Images via Multi-channel Generative Adversarial Networks (GANs)
cs.CV
Positron emission tomography (PET) image synthesis plays an important role, which can be used to boost the training data for computer aided diagnosis systems. However, existing image synthesis methods have problems in synthesizing the low resolution PET images. To address these limitations, we propose multi-channel gen...
computer science
28,884
Unsupervised Visual Attribute Transfer with Reconfigurable Generative Adversarial Networks
cs.CV
Learning to transfer visual attributes requires supervision dataset. Corresponding images with varying attribute values with the same identity are required for learning the transfer function. This largely limits their applications, because capturing them is often a difficult task. To address the issue, we propose an un...
computer science
28,885
2D-3D Fully Convolutional Neural Networks for Cardiac MR Segmentation
cs.CV
In this paper, we develop a 2D and 3D segmentation pipelines for fully automated cardiac MR image segmentation using Deep Convolutional Neural Networks (CNN). Our models are trained end-to-end from scratch using the ACD Challenge 2017 dataset comprising of 100 studies, each containing Cardiac MR images in End Diastole ...
computer science
28,886
Deep Domain Adaptation by Geodesic Distance Minimization
cs.CV
In this paper, we propose a new approach called Deep LogCORAL for unsupervised visual domain adaptation. Our work builds on the recently proposed Deep CORAL method, which proposed to train a convolutional neural network and simultaneously minimize the Euclidean distance of convariance matrices between the source and ta...
computer science
28,887
Convolution with Logarithmic Filter Groups for Efficient Shallow CNN
cs.CV
In convolutional neural networks (CNNs), the filter grouping in convolution layers is known to be useful to reduce the network parameter size. In this paper, we propose a new logarithmic filter grouping which can capture the nonlinearity of filter distribution in CNNs. The proposed logarithmic filter grouping is instal...
computer science
28,888
Spatially variant PSF modeling in confocal macroscopy
cs.CV
Point spread function (PSF) plays an essential role in image reconstruction. In the context of confocal microscopy, optical performance degrades towards the edge of the field of view as astigmatism, coma and vignetting. Thus, one should expect the related artifacts to be even stronger in macroscopy, where the field of ...
computer science
28,889
Iterative Manifold Embedding Layer Learned by Incomplete Data for Large-scale Image Retrieval
cs.CV
Existing manifold learning methods are not appropriate for image retrieval task, because most of them are unable to process query image and they have much additional computational cost especially for large scale database. Therefore, we propose the iterative manifold embedding (IME) layer, of which the weights are learn...
computer science
28,890
Generalizing the Convolution Operator in Convolutional Neural Networks
cs.CV
Convolutional neural networks have become a main tool for solving many machine vision and machine learning problems. A major element of these networks is the convolution operator which essentially computes the inner product between a weight vector and the vectorized image patches extracted by sliding a window in the im...
computer science
28,891
Guided Co-training for Large-Scale Multi-View Spectral Clustering
cs.CV
In many real-world applications, we have access to multiple views of the data, each of which characterizes the data from a distinct aspect. Several previous algorithms have demonstrated that one can achieve better clustering accuracy by integrating information from all views appropriately than using only an individual ...
computer science
28,892
A comment on the paper Prediction of Kidney Function from Biopsy Images using Convolutional Neural Networks
cs.CV
This letter presente a comment on the paper Prediction of Kidney Function from Biopsy Images using Convolutional Neural Networks by Ledbetter et al. (2017)
computer science
28,893
Extremely Low Bit Neural Network: Squeeze the Last Bit Out with ADMM
cs.CV
Although deep learning models are highly effective for various learning tasks, their high computational costs prohibit the deployment to scenarios where either memory or computational resources are limited. In this paper, we focus on compressing and accelerating deep models with network weights represented by very smal...
computer science
28,894
Representation Learning on Large and Small Data
cs.CV
Deep learning owes its success to three key factors: scale of data, enhanced models to learn representations from data, and scale of computation. This book chapter presented the importance of the data-driven approach to learn good representations from both big data and small data. In terms of big data, it has been wide...
computer science
28,895
A Framework for Super-Resolution of Scalable Video via Sparse Reconstruction of Residual Frames
cs.CV
This paper introduces a framework for super-resolution of scalable video based on compressive sensing and sparse representation of residual frames in reconnaissance and surveillance applications. We exploit efficient compressive sampling and sparse reconstruction algorithms to super-resolve the video sequence with resp...
computer science
28,896
(k,q)-Compressed Sensing for dMRI with Joint Spatial-Angular Sparsity Prior
cs.CV
Advanced diffusion magnetic resonance imaging (dMRI) techniques, like diffusion spectrum imaging (DSI) and high angular resolution diffusion imaging (HARDI), remain underutilized compared to diffusion tensor imaging because the scan times needed to produce accurate estimations of fiber orientation are significantly lon...
computer science
28,897
Correction of "Cloud Removal By Fusing Multi-Source and Multi-Temporal Images"
cs.CV
Remote sensing images often suffer from cloud cover. Cloud removal is required in many applications of remote sensing images. Multitemporal-based methods are popular and effective to cope with thick clouds. This paper contributes to a summarization and experimental comparation of the existing multitemporal-based method...
computer science
28,898
Spatio-Temporal Action Detection with Cascade Proposal and Location Anticipation
cs.CV
In this work, we address the problem of spatio-temporal action detection in temporally untrimmed videos. It is an important and challenging task as finding accurate human actions in both temporal and spatial space is important for analyzing large-scale video data. To tackle this problem, we propose a cascade proposal a...
computer science
28,899
Statistics on the (compact) Stiefel manifold: Theory and Applications
cs.CV
A Stiefel manifold of the compact type is often encountered in many fields of Engineering including, signal and image processing, machine learning, numerical optimization and others. The Stiefel manifold is a Riemannian homogeneous space but not a symmetric space. In previous work, researchers have defined probability ...
computer science
28,900
Towards the Success Rate of One: Real-time Unconstrained Salient Object Detection
cs.CV
In this work, we propose an efficient and effective approach for unconstrained salient object detection in images using deep convolutional neural networks. Instead of generating thousands of candidate bounding boxes and refining them, our network directly learns to generate the saliency map containing the exact number ...
computer science
28,901
Material Editing Using a Physically Based Rendering Network
cs.CV
The ability to edit materials of objects in images is desirable by many content creators. However, this is an extremely challenging task as it requires to disentangle intrinsic physical properties of an image. We propose an end-to-end network architecture that replicates the forward image formation process to accomplis...
computer science