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27,602
Sparse Autoencoder for Unsupervised Nucleus Detection and Representation in Histopathology Images
cs.CV
Histopathology images are crucial to the study of complex diseases such as cancer. The histologic characteristics of nuclei play a key role in disease diagnosis, prognosis and analysis. In this work, we propose a sparse Convolutional Autoencoder (CAE) for fully unsupervised, simultaneous nucleus detection and feature e...
computer science
27,603
A Good Practice Towards Top Performance of Face Recognition: Transferred Deep Feature Fusion
cs.CV
Unconstrained face recognition performance evaluations have traditionally focused on Labeled Faces in the Wild (LFW) dataset for imagery and the YouTubeFaces (YTF) dataset for videos in the last couple of years. Spectacular progress in this field has resulted in saturation on verification and identification accuracies ...
computer science
27,604
Learning a Variational Network for Reconstruction of Accelerated MRI Data
cs.CV
Purpose: To allow fast and high-quality reconstruction of clinical accelerated multi-coil MR data by learning a variational network that combines the mathematical structure of variational models with deep learning. Theory and Methods: Generalized compressed sensing reconstruction formulated as a variational model is ...
computer science
27,605
A Comparison of Directional Distances for Hand Pose Estimation
cs.CV
Benchmarking methods for 3d hand tracking is still an open problem due to the difficulty of acquiring ground truth data. We introduce a new dataset and benchmarking protocol that is insensitive to the accumulative error of other protocols. To this end, we create testing frame pairs of increasing difficulty and measure ...
computer science
27,606
Convolutional neural networks for segmentation and object detection of human semen
cs.CV
We compare a set of convolutional neural network (CNN) architectures for the task of segmenting and detecting human sperm cells in an image taken from a semen sample. In contrast to previous work, samples are not stained or washed to allow for full sperm quality analysis, making analysis harder due to clutter. Our resu...
computer science
27,607
Truncating Wide Networks using Binary Tree Architectures
cs.CV
Recent study shows that a wide deep network can obtain accuracy comparable to a deeper but narrower network. Compared to narrower and deeper networks, wide networks employ relatively less number of layers and have various important benefits, such that they have less running time on parallel computing devices, and they ...
computer science
27,608
Capturing Hand Motion with an RGB-D Sensor, Fusing a Generative Model with Salient Points
cs.CV
Hand motion capture has been an active research topic in recent years, following the success of full-body pose tracking. Despite similarities, hand tracking proves to be more challenging, characterized by a higher dimensionality, severe occlusions and self-similarity between fingers. For this reason, most approaches re...
computer science
27,609
Block-Matching Convolutional Neural Network for Image Denoising
cs.CV
There are two main streams in up-to-date image denoising algorithms: non-local self similarity (NSS) prior based methods and convolutional neural network (CNN) based methods. The NSS based methods are favorable on images with regular and repetitive patterns while the CNN based methods perform better on irregular struct...
computer science
27,610
3D Object Reconstruction from Hand-Object Interactions
cs.CV
Recent advances have enabled 3d object reconstruction approaches using a single off-the-shelf RGB-D camera. Although these approaches are successful for a wide range of object classes, they rely on stable and distinctive geometric or texture features. Many objects like mechanical parts, toys, household or decorative ar...
computer science
27,611
Spatiotemporal Networks for Video Emotion Recognition
cs.CV
Our experiment adapts several popular deep learning methods as well as some traditional methods on the problem of video emotion recognition. In our experiment, we use the CNN-LSTM architecture for visual information extraction and classification and utilize traditional methods such as for audio feature classification. ...
computer science
27,612
The 2017 DAVIS Challenge on Video Object Segmentation
cs.CV
We present the 2017 DAVIS Challenge on Video Object Segmentation, a public dataset, benchmark, and competition specifically designed for the task of video object segmentation. Following the footsteps of other successful initiatives, such as ILSVRC and PASCAL VOC, which established the avenue of research in the fields o...
computer science
27,613
Hierarchical Surface Prediction for 3D Object Reconstruction
cs.CV
Recently, Convolutional Neural Networks have shown promising results for 3D geometry prediction. They can make predictions from very little input data such as a single color image. A major limitation of such approaches is that they only predict a coarse resolution voxel grid, which does not capture the surface of the o...
computer science
27,614
Unsupervised Action Proposal Ranking through Proposal Recombination
cs.CV
Recently, action proposal methods have played an important role in action recognition tasks, as they reduce the search space dramatically. Most unsupervised action proposal methods tend to generate hundreds of action proposals which include many noisy, inconsistent, and unranked action proposals, while supervised actio...
computer science
27,615
AMC: Attention guided Multi-modal Correlation Learning for Image Search
cs.CV
Given a user's query, traditional image search systems rank images according to its relevance to a single modality (e.g., image content or surrounding text). Nowadays, an increasing number of images on the Internet are available with associated meta data in rich modalities (e.g., titles, keywords, tags, etc.), which ca...
computer science
27,616
Cascaded Segmentation-Detection Networks for Word-Level Text Spotting
cs.CV
We introduce an algorithm for word-level text spotting that is able to accurately and reliably determine the bounding regions of individual words of text "in the wild". Our system is formed by the cascade of two convolutional neural networks. The first network is fully convolutional and is in charge of detecting areas ...
computer science
27,617
Guided Proofreading of Automatic Segmentations for Connectomics
cs.CV
Automatic cell image segmentation methods in connectomics produce merge and split errors, which require correction through proofreading. Previous research has identified the visual search for these errors as the bottleneck in interactive proofreading. To aid error correction, we develop two classifiers that automatical...
computer science
27,618
Simultaneous Feature Aggregating and Hashing for Large-scale Image Search
cs.CV
In most state-of-the-art hashing-based visual search systems, local image descriptors of an image are first aggregated as a single feature vector. This feature vector is then subjected to a hashing function that produces a binary hash code. In previous work, the aggregating and the hashing processes are designed indepe...
computer science
27,619
OctNetFusion: Learning Depth Fusion from Data
cs.CV
In this paper, we present a learning based approach to depth fusion, i.e., dense 3D reconstruction from multiple depth images. The most common approach to depth fusion is based on averaging truncated signed distance functions, which was originally proposed by Curless and Levoy in 1996. While this method is simple and p...
computer science
27,620
ME R-CNN: Multi-Expert R-CNN for Object Detection
cs.CV
We introduce Multi-Expert Region-based CNN (ME R-CNN) which is equipped with multiple experts and built on top of the R-CNN framework known to be one of the state-of-the-art object detection methods. ME R-CNN focuses in better capturing the appearance variations caused by different shapes, poses, and viewing angles. Th...
computer science
27,621
Deep Depth From Focus
cs.CV
Depth from Focus (DFF) is one of the classical ill-posed inverse problems in computer vision. Most approaches recover the depth at each pixel based on the focal setting which exhibits maximal sharpness. Yet, it is not obvious how to reliably estimate the sharpness level, particularly in low-textured areas. In this pape...
computer science
27,622
Pose2Instance: Harnessing Keypoints for Person Instance Segmentation
cs.CV
Human keypoints are a well-studied representation of people.We explore how to use keypoint models to improve instance-level person segmentation. The main idea is to harness the notion of a distance transform of oracle provided keypoints or estimated keypoint heatmaps as a prior for person instance segmentation task wit...
computer science
27,623
Two Stream LSTM: A Deep Fusion Framework for Human Action Recognition
cs.CV
In this paper we address the problem of human action recognition from video sequences. Inspired by the exemplary results obtained via automatic feature learning and deep learning approaches in computer vision, we focus our attention towards learning salient spatial features via a convolutional neural network (CNN) and ...
computer science
27,624
Escape from Cells: Deep Kd-Networks for the Recognition of 3D Point Cloud Models
cs.CV
We present a new deep learning architecture (called Kd-network) that is designed for 3D model recognition tasks and works with unstructured point clouds. The new architecture performs multiplicative transformations and share parameters of these transformations according to the subdivisions of the point clouds imposed o...
computer science
27,625
Joint Regression and Ranking for Image Enhancement
cs.CV
Research on automated image enhancement has gained momentum in recent years, partially due to the need for easy-to-use tools for enhancing pictures captured by ubiquitous cameras on mobile devices. Many of the existing leading methods employ machine-learning-based techniques, by which some enhancement parameters for a ...
computer science
27,626
Estimation of Tissue Microstructure Using a Deep Network Inspired by a Sparse Reconstruction Framework
cs.CV
Diffusion magnetic resonance imaging (dMRI) provides a unique tool for noninvasively probing the microstructure of the neuronal tissue. The NODDI model has been a popular approach to the estimation of tissue microstructure in many neuroscience studies. It represents the diffusion signals with three types of diffusion i...
computer science
27,627
A Computational Approach to Relative Aesthetics
cs.CV
Computational visual aesthetics has recently become an active research area. Existing state-of-art methods formulate this as a binary classification task where a given image is predicted to be beautiful or not. In many applications such as image retrieval and enhancement, it is more important to rank images based on th...
computer science
27,628
A Structured Approach to Predicting Image Enhancement Parameters
cs.CV
Social networking on mobile devices has become a commonplace of everyday life. In addition, photo capturing process has become trivial due to the advances in mobile imaging. Hence people capture a lot of photos everyday and they want them to be visually-attractive. This has given rise to automated, one-touch enhancemen...
computer science
27,629
Relative Learning from Web Images for Content-adaptive Enhancement
cs.CV
Personalized and content-adaptive image enhancement can find many applications in the age of social media and mobile computing. This paper presents a relative-learning-based approach, which, unlike previous methods, does not require matching original and enhanced images for training. This allows the use of massive onli...
computer science
27,630
Improving Vision-based Self-positioning in Intelligent Transportation Systems via Integrated Lane and Vehicle Detection
cs.CV
Traffic congestion is a widespread problem. Dynamic traffic routing systems and congestion pricing are getting importance in recent research. Lane prediction and vehicle density estimation is an important component of such systems. We introduce a novel problem of vehicle self-positioning which involves predicting the n...
computer science
27,631
Investigating Human Factors in Image Forgery Detection
cs.CV
In today's age of internet and social media, one can find an enormous volume of forged images on-line. These images have been used in the past to convey falsified information and achieve harmful intentions. The spread and the effect of the social media only makes this problem more severe. While creating forged images h...
computer science
27,632
Classification of Diabetic Retinopathy Images Using Multi-Class Multiple-Instance Learning Based on Color Correlogram Features
cs.CV
All people with diabetes have the risk of developing diabetic retinopathy (DR), a vision-threatening complication. Early detection and timely treatment can reduce the occurrence of blindness due to DR. Computer-aided diagnosis has the potential benefit of improving the accuracy and speed in DR detection. This study is ...
computer science
27,633
Smart Mining for Deep Metric Learning
cs.CV
To solve deep metric learning problems and producing feature embeddings, current methodologies will commonly use a triplet model to minimise the relative distance between samples from the same class and maximise the relative distance between samples from different classes. Though successful, the training convergence of...
computer science
27,634
Incremental Tube Construction for Human Action Detection
cs.CV
Current state-of-the-art action detection systems are tailored for offline batch-processing applications. However, for online applications like human-robot interaction, current systems fall short, either because they only detect one action per video, or because they assume that the entire video is available ahead of ti...
computer science
27,635
On the Relation between Color Image Denoising and Classification
cs.CV
Large amount of image denoising literature focuses on single channel images and often experimentally validates the proposed methods on tens of images at most. In this paper, we investigate the interaction between denoising and classification on large scale dataset. Inspired by classification models, we propose a novel ...
computer science
27,636
The UMCD Dataset
cs.CV
In recent years, the technological improvements of low-cost small-scale Unmanned Aerial Vehicles (UAVs) are promoting an ever-increasing use of them in different tasks. In particular, the use of small-scale UAVs is useful in all these low-altitude tasks in which common UAVs cannot be adopted, such as recurrent comprehe...
computer science
27,637
Non-Convex Weighted Lp Minimization based Group Sparse Representation Framework for Image Denoising
cs.CV
Nonlocal image representation or group sparsity has attracted considerable interest in various low-level vision tasks and has led to several state-of-the-art image denoising techniques, such as BM3D, LSSC. In the past, convex optimization with sparsity-promoting convex regularization was usually regarded as a standard ...
computer science
27,638
Effect of Super Resolution on High Dimensional Features for Unsupervised Face Recognition in the Wild
cs.CV
Majority of the face recognition algorithms use query faces captured from uncontrolled, in the wild, environment. Often caused by the cameras limited capabilities, it is common for these captured facial images to be blurred or low resolution. Super resolution algorithms are therefore crucial in improving the resolution...
computer science
27,639
Weakly Supervised Dense Video Captioning
cs.CV
This paper focuses on a novel and challenging vision task, dense video captioning, which aims to automatically describe a video clip with multiple informative and diverse caption sentences. The proposed method is trained without explicit annotation of fine-grained sentence to video region-sequence correspondence, but i...
computer science
27,640
Isotropic reconstruction of 3D fluorescence microscopy images using convolutional neural networks
cs.CV
Fluorescence microscopy images usually show severe anisotropy in axial versus lateral resolution. This hampers downstream processing, i.e. the automatic extraction of quantitative biological data. While deconvolution methods and other techniques to address this problem exist, they are either time consuming to apply or ...
computer science
27,641
Generating Descriptions with Grounded and Co-Referenced People
cs.CV
Learning how to generate descriptions of images or videos received major interest both in the Computer Vision and Natural Language Processing communities. While a few works have proposed to learn a grounding during the generation process in an unsupervised way (via an attention mechanism), it remains unclear how good t...
computer science
27,642
Generate To Adapt: Aligning Domains using Generative Adversarial Networks
cs.CV
Domain Adaptation is an actively researched problem in Computer Vision. In this work, we propose an approach that leverages unsupervised data to bring the source and target distributions closer in a learned joint feature space. We accomplish this by inducing a symbiotic relationship between the learned embedding and a ...
computer science
27,643
Action Representation Using Classifier Decision Boundaries
cs.CV
Most popular deep learning based models for action recognition are designed to generate separate predictions within their short temporal windows, which are often aggregated by heuristic means to assign an action label to the full video segment. Given that not all frames from a video characterize the underlying action, ...
computer science
27,644
Beyond triplet loss: a deep quadruplet network for person re-identification
cs.CV
Person re-identification (ReID) is an important task in wide area video surveillance which focuses on identifying people across different cameras. Recently, deep learning networks with a triplet loss become a common framework for person ReID. However, the triplet loss pays main attentions on obtaining correct orders on...
computer science
27,645
Object-Part Attention Model for Fine-grained Image Classification
cs.CV
Fine-grained image classification is to recognize hundreds of subcategories belonging to the same basic-level category, such as 200 subcategories belonging to the bird, which is highly challenging due to large variance in the same subcategory and small variance among different subcategories. Existing methods generally ...
computer science
27,646
How to Make an Image More Memorable? A Deep Style Transfer Approach
cs.CV
Recent works have shown that it is possible to automatically predict intrinsic image properties like memorability. In this paper, we take a step forward addressing the question: "Can we make an image more memorable?". Methods for automatically increasing image memorability would have an impact in many application field...
computer science
27,647
Higher-Order Minimum Cost Lifted Multicuts for Motion Segmentation
cs.CV
Most state-of-the-art motion segmentation algorithms draw their potential from modeling motion differences of local entities such as point trajectories in terms of pairwise potentials in graphical models. Inference in instances of minimum cost multicut problems defined on such graphs al- lows to optimize the number of ...
computer science
27,648
A Convolution Tree with Deconvolution Branches: Exploiting Geometric Relationships for Single Shot Keypoint Detection
cs.CV
Recently, Deep Convolution Networks (DCNNs) have been applied to the task of face alignment and have shown potential for learning improved feature representations. Although deeper layers can capture abstract concepts like pose, it is difficult to capture the geometric relationships among the keypoints in DCNNs. In this...
computer science
27,649
Automated Latent Fingerprint Recognition
cs.CV
Latent fingerprints are one of the most important and widely used evidence in law enforcement and forensic agencies worldwide. Yet, NIST evaluations show that the performance of state-of-the-art latent recognition systems is far from satisfactory. An automated latent fingerprint recognition system with high accuracy is...
computer science
27,650
Semantically-Guided Video Object Segmentation
cs.CV
This paper tackles the problem of semi-supervised video object segmentation, that is, segmenting an object in a sequence given its mask in the first frame. One of the main challenges in this scenario is the change of appearance of the objects of interest. Their semantics, on the other hand, do not vary. This paper inve...
computer science
27,651
Convolutional Neural Pyramid for Image Processing
cs.CV
We propose a principled convolutional neural pyramid (CNP) framework for general low-level vision and image processing tasks. It is based on the essential finding that many applications require large receptive fields for structure understanding. But corresponding neural networks for regression either stack many layers ...
computer science
27,652
"RAPID" Regions-of-Interest Detection In Big Histopathological Images
cs.CV
The sheer volume and size of histopathological images (e.g.,10^6 MPixel) underscores the need for faster and more accurate Regions-of-interest (ROI) detection algorithms. In this paper, we propose such an algorithm, which has four main components that help achieve greater accuracy and faster speed: First, while using c...
computer science
27,653
Supervised Deep Hashing for Hierarchical Labeled Data
cs.CV
Recently, hashing methods have been widely used in large-scale image retrieval. However, most existing hashing methods did not consider the hierarchical relation of labels, which means that they ignored the rich information stored in the hierarchy. Moreover, most of previous works treat each bit in a hash code equally,...
computer science
27,654
Generalized Rank Pooling for Activity Recognition
cs.CV
Most popular deep models for action recognition split video sequences into short sub-sequences consisting of a few frames; frame-based features are then pooled for recognizing the activity. Usually, this pooling step discards the temporal order of the frames, which could otherwise be used for better recognition. Toward...
computer science
27,655
Partial Face Detection in the Mobile Domain
cs.CV
Generic face detection algorithms do not perform well in the mobile domain due to significant presence of occluded and partially visible faces. One promising technique to handle the challenge of partial faces is to design face detectors based on facial segments. In this paper two different approaches of facial segment-...
computer science
27,656
Multi-Scale Continuous CRFs as Sequential Deep Networks for Monocular Depth Estimation
cs.CV
This paper addresses the problem of depth estimation from a single still image. Inspired by recent works on multi- scale convolutional neural networks (CNN), we propose a deep model which fuses complementary information derived from multiple CNN side outputs. Different from previous methods, the integration is obtained...
computer science
27,657
ReLayNet: Retinal Layer and Fluid Segmentation of Macular Optical Coherence Tomography using Fully Convolutional Network
cs.CV
Optical coherence tomography (OCT) is used for non-invasive diagnosis of diabetic macular edema assessing the retinal layers. In this paper, we propose a new fully convolutional deep architecture, termed ReLayNet, for end-to-end segmentation of retinal layers and fluid masses in eye OCT scans. ReLayNet uses a contracti...
computer science
27,658
Egocentric Video Description based on Temporally-Linked Sequences
cs.CV
Egocentric vision consists in acquiring images along the day from a first person point-of-view using wearable cameras. The automatic analysis of this information allows to discover daily patterns for improving the quality of life of the user. A natural topic that arises in egocentric vision is storytelling, that is, ho...
computer science
27,659
Semi-Latent GAN: Learning to generate and modify facial images from attributes
cs.CV
Generating and manipulating human facial images using high-level attributal controls are important and interesting problems. The models proposed in previous work can solve one of these two problems (generation or manipulation), but not both coherently. This paper proposes a novel model that learns how to both generate ...
computer science
27,660
Could you guess an interesting movie from the posters?: An evaluation of vision-based features on movie poster database
cs.CV
In this paper, we aim to estimate the Winner of world-wide film festival from the exhibited movie poster. The task is an extremely challenging because the estimation must be done with only an exhibited movie poster, without any film ratings and box-office takings. In order to tackle this problem, we have created a new ...
computer science
27,661
Real-time Hand Tracking under Occlusion from an Egocentric RGB-D Sensor
cs.CV
We present an approach for real-time, robust and accurate hand pose estimation from moving egocentric RGB-D cameras in cluttered real environments. Existing methods typically fail for hand-object interactions in cluttered scenes imaged from egocentric viewpoints, common for virtual or augmented reality applications. Ou...
computer science
27,662
High-Quality Correspondence and Segmentation Estimation for Dual-Lens Smart-Phone Portraits
cs.CV
Estimating correspondence between two images and extracting the foreground object are two challenges in computer vision. With dual-lens smart phones, such as iPhone 7Plus and Huawei P9, coming into the market, two images of slightly different views provide us new information to unify the two topics. We propose a joint ...
computer science
27,663
DeepCoder: Semi-parametric Variational Autoencoders for Automatic Facial Action Coding
cs.CV
Human face exhibits an inherent hierarchy in its representations (i.e., holistic facial expressions can be encoded via a set of facial action units (AUs) and their intensity). Variational (deep) auto-encoders (VAE) have shown great results in unsupervised extraction of hierarchical latent representations from large amo...
computer science
27,664
Investigating Natural Image Pleasantness Recognition using Deep Features and Eye Tracking for Loosely Controlled Human-computer Interaction
cs.CV
This paper revisits recognition of natural image pleasantness by employing deep convolutional neural networks and affordable eye trackers. There exist several approaches to recognize image pleasantness: (1) computer vision, and (2) psychophysical signals. For natural images, computer vision approaches have not been as ...
computer science
27,665
Hand3D: Hand Pose Estimation using 3D Neural Network
cs.CV
We propose a novel 3D neural network architecture for 3D hand pose estimation from a single depth image. Different from previous works that mostly run on 2D depth image domain and require intermediate or post process to bring in the supervision from 3D space, we convert the depth map to a 3D volumetric representation, ...
computer science
27,666
Clothing and People - A Social Signal Processing Perspective
cs.CV
In our society and century, clothing is not anymore used only as a means for body protection. Our paper builds upon the evidence, studied within the social sciences, that clothing brings a clear communicative message in terms of social signals, influencing the impression and behaviour of others towards a person. In fac...
computer science
27,667
Learned Watershed: End-to-End Learning of Seeded Segmentation
cs.CV
Learned boundary maps are known to outperform hand- crafted ones as a basis for the watershed algorithm. We show, for the first time, how to train watershed computation jointly with boundary map prediction. The estimator for the merging priorities is cast as a neural network that is con- volutional (over space) and rec...
computer science
27,668
Deep Unsupervised Similarity Learning using Partially Ordered Sets
cs.CV
Unsupervised learning of visual similarities is of paramount importance to computer vision, particularly due to lacking training data for fine-grained similarities. Deep learning of similarities is often based on relationships between pairs or triplets of samples. Many of these relations are unreliable and mutually con...
computer science
27,669
Automated Unsupervised Segmentation of Liver Lesions in CT scans via Cahn-Hilliard Phase Separation
cs.CV
The segmentation of liver lesions is crucial for detection, diagnosis and monitoring progression of liver cancer. However, design of accurate automated methods remains challenging due to high noise in CT scans, low contrast between liver and lesions, as well as large lesion variability. We propose a 3D automatic, unsup...
computer science
27,670
Three-Dimensional Segmentation of Vesicular Networks of Fungal Hyphae in Macroscopic Microscopy Image Stacks
cs.CV
Automating the extraction and quantification of features from three-dimensional (3-D) image stacks is a critical task for advancing computer vision research. The union of 3-D image acquisition and analysis enables the quantification of biological resistance of a plant tissue to fungal infection through the analysis of ...
computer science
27,671
Pixelwise Instance Segmentation with a Dynamically Instantiated Network
cs.CV
Semantic segmentation and object detection research have recently achieved rapid progress. However, the former task has no notion of different instances of the same object, and the latter operates at a coarse, bounding-box level. We propose an Instance Segmentation system that produces a segmentation map where each pix...
computer science
27,672
Learning Where to Look: Data-Driven Viewpoint Set Selection for 3D Scenes
cs.CV
The use of rendered images, whether from completely synthetic datasets or from 3D reconstructions, is increasingly prevalent in vision tasks. However, little attention has been given to how the selection of viewpoints affects the performance of rendered training sets. In this paper, we propose a data-driven approach to...
computer science
27,673
GoDP: Globally optimized dual pathway system for facial landmark localization in-the-wild
cs.CV
Facial landmark localization is a fundamental module for pose-invariant face recognition. The most common approach for facial landmark detection is cascaded regression, which is composed of two steps: feature extraction and facial shape regression. Recent methods employ deep convolutional networks to extract robust fea...
computer science
27,674
A Deep Cascade of Convolutional Neural Networks for Dynamic MR Image Reconstruction
cs.CV
Inspired by recent advances in deep learning, we propose a framework for reconstructing dynamic sequences of 2D cardiac magnetic resonance (MR) images from undersampled data using a deep cascade of convolutional neural networks (CNNs) to accelerate the data acquisition process. In particular, we address the case where ...
computer science
27,675
Learning Cross-Modal Deep Representations for Robust Pedestrian Detection
cs.CV
This paper presents a novel method for detecting pedestrians under adverse illumination conditions. Our approach relies on a novel cross-modality learning framework and it is based on two main phases. First, given a multimodal dataset, a deep convolutional network is employed to learn a non-linear mapping, modeling the...
computer science
27,676
Seismic facies recognition based on prestack data using deep convolutional autoencoder
cs.CV
Prestack seismic data carries much useful information that can help us find more complex atypical reservoirs. Therefore, we are increasingly inclined to use prestack seismic data for seis- mic facies recognition. However, due to the inclusion of ex- cessive redundancy, effective feature extraction from prestack seismic...
computer science
27,677
Towards 3D Human Pose Estimation in the Wild: a Weakly-supervised Approach
cs.CV
In this paper, we study the task of 3D human pose estimation in the wild. This task is challenging due to lack of training data, as existing datasets are either in the wild images with 2D pose or in the lab images with 3D pose. We propose a weakly-supervised transfer learning method that uses mixed 2D and 3D labels i...
computer science
27,678
Coupled Deep Learning for Heterogeneous Face Recognition
cs.CV
Heterogeneous face matching is a challenge issue in face recognition due to large domain difference as well as insufficient pairwise images in different modalities during training. This paper proposes a coupled deep learning (CDL) approach for the heterogeneous face matching. CDL seeks a shared feature space in which t...
computer science
27,679
A New Pseudo-color Technique Based on Intensity Information Protection for Passive Sensor Imagery
cs.CV
Remote sensing image processing is so important in geo-sciences. Images which are obtained by different types of sensors might initially be unrecognizable. To make an acceptable visual perception in the images, some pre-processing steps (for removing noises and etc) are preformed which they affect the analysis of image...
computer science
27,680
First-Person Hand Action Benchmark with RGB-D Videos and 3D Hand Pose Annotations
cs.CV
In this work we study the use of 3D hand poses to recognize first-person hand actions interacting with 3D objects. Towards this goal, we collected RGB-D video sequences of more than 100K frames of 45 daily hand action categories, involving 25 different objects in several hand grasp configurations. To obtain high qualit...
computer science
27,681
DSLR-Quality Photos on Mobile Devices with Deep Convolutional Networks
cs.CV
Despite a rapid rise in the quality of built-in smartphone cameras, their physical limitations - small sensor size, compact lenses and the lack of specific hardware, - impede them to achieve the quality results of DSLR cameras. In this work we present an end-to-end deep learning approach that bridges this gap by transl...
computer science
27,682
Metric Learning in Codebook Generation of Bag-of-Words for Person Re-identification
cs.CV
Person re-identification is generally divided into two part: first how to represent a pedestrian by discriminative visual descriptors and second how to compare them by suitable distance metrics. Conventional methods isolate these two parts, the first part usually unsupervised and the second part supervised. The Bag-of-...
computer science
27,683
DualGAN: Unsupervised Dual Learning for Image-to-Image Translation
cs.CV
Conditional Generative Adversarial Networks (GANs) for cross-domain image-to-image translation have made much progress recently. Depending on the task complexity, thousands to millions of labeled image pairs are needed to train a conditional GAN. However, human labeling is expensive, even impractical, and large quantit...
computer science
27,684
An Empirical Evaluation of Visual Question Answering for Novel Objects
cs.CV
We study the problem of answering questions about images in the harder setting, where the test questions and corresponding images contain novel objects, which were not queried about in the training data. Such setting is inevitable in real world-owing to the heavy tailed distribution of the visual categories, there woul...
computer science
27,685
Deep Generative Adversarial Compression Artifact Removal
cs.CV
Compression artifacts arise in images whenever a lossy compression algorithm is applied. These artifacts eliminate details present in the original image, or add noise and small structures; because of these effects they make images less pleasant for the human eye, and may also lead to decreased performance of computer v...
computer science
27,686
Motion Saliency Based Automatic Delineation of Glottis Contour in High-speed Digital Images
cs.CV
In recent years, high-speed videoendoscopy (HSV) has significantly aided the diagnosis of voice pathologies and furthered the understanding the voice production in recent years. As the first step of these studies, automatic segmentation of glottal images till presents a major challenge for this technique. In this paper...
computer science
27,687
Modeling Temporal Dynamics and Spatial Configurations of Actions Using Two-Stream Recurrent Neural Networks
cs.CV
Recently, skeleton based action recognition gains more popularity due to cost-effective depth sensors coupled with real-time skeleton estimation algorithms. Traditional approaches based on handcrafted features are limited to represent the complexity of motion patterns. Recent methods that use Recurrent Neural Networks ...
computer science
27,688
BigHand2.2M Benchmark: Hand Pose Dataset and State of the Art Analysis
cs.CV
In this paper we introduce a large-scale hand pose dataset, collected using a novel capture method. Existing datasets are either generated synthetically or captured using depth sensors: synthetic datasets exhibit a certain level of appearance difference from real depth images, and real datasets are limited in quantity ...
computer science
27,689
ClusterNet: Detecting Small Objects in Large Scenes by Exploiting Spatio-Temporal Information
cs.CV
Object detection in wide area motion imagery (WAMI) has drawn the attention of the computer vision research community for a number of years. WAMI proposes a number of unique challenges including extremely small object sizes, both sparse and densely-packed objects, and extremely large search spaces (large video frames)....
computer science
27,690
Automatic Liver Lesion Detection using Cascaded Deep Residual Networks
cs.CV
Automatic segmentation of liver lesions is a fundamental requirement towards the creation of computer aided diagnosis (CAD) and decision support systems (CDS). Traditional segmentation approaches depend heavily upon hand-crafted features and a priori knowledge of the user. As such, these methods are difficult to adopt ...
computer science
27,691
DeepPermNet: Visual Permutation Learning
cs.CV
We present a principled approach to uncover the structure of visual data by solving a novel deep learning task coined visual permutation learning. The goal of this task is to find the permutation that recovers the structure of data from shuffled versions of it. In the case of natural images, this task boils down to rec...
computer science
27,692
Detail-revealing Deep Video Super-resolution
cs.CV
Previous CNN-based video super-resolution approaches need to align multiple frames to the reference. In this paper, we show that proper frame alignment and motion compensation is crucial for achieving high quality results. We accordingly propose a `sub-pixel motion compensation' (SPMC) layer in a CNN framework. Analysi...
computer science
27,693
Tracking the Trackers: An Analysis of the State of the Art in Multiple Object Tracking
cs.CV
Standardized benchmarks are crucial for the majority of computer vision applications. Although leaderboards and ranking tables should not be over-claimed, benchmarks often provide the most objective measure of performance and are therefore important guides for research. We present a benchmark for Multiple Object Tracki...
computer science
27,694
Deep Affordance-grounded Sensorimotor Object Recognition
cs.CV
It is well-established by cognitive neuroscience that human perception of objects constitutes a complex process, where object appearance information is combined with evidence about the so-called object "affordances", namely the types of actions that humans typically perform when interacting with them. This fact has rec...
computer science
27,695
Fine-graind Image Classification via Combining Vision and Language
cs.CV
Fine-grained image classification is a challenging task due to the large intra-class variance and small inter-class variance, aiming at recognizing hundreds of sub-categories belonging to the same basic-level category. Most existing fine-grained image classification methods generally learn part detection models to obta...
computer science
27,696
R-Clustering for Egocentric Video Segmentation
cs.CV
In this paper, we present a new method for egocentric video temporal segmentation based on integrating a statistical mean change detector and agglomerative clustering(AC) within an energy-minimization framework. Given the tendency of most AC methods to oversegment video sequences when clustering their frames, we combin...
computer science
27,697
Learning Human Motion Models for Long-term Predictions
cs.CV
We propose a new architecture for the learning of predictive spatio-temporal motion models from data alone. Our approach, dubbed the Dropout Autoencoder LSTM, is capable of synthesizing natural looking motion sequences over long time horizons without catastrophic drift or motion degradation. The model consists of two c...
computer science
27,698
ActionVLAD: Learning spatio-temporal aggregation for action classification
cs.CV
In this work, we introduce a new video representation for action classification that aggregates local convolutional features across the entire spatio-temporal extent of the video. We do so by integrating state-of-the-art two-stream networks with learnable spatio-temporal feature aggregation. The resulting architecture ...
computer science
27,699
Continuously heterogeneous hyper-objects in cryo-EM and 3-D movies of many temporal dimensions
cs.CV
Single particle cryo-electron microscopy (EM) is an increasingly popular method for determining the 3-D structure of macromolecules from noisy 2-D images of single macromolecules whose orientations and positions are random and unknown. One of the great opportunities in cryo-EM is to recover the structure of macromolecu...
computer science
27,700
Fast Learning and Prediction for Object Detection using Whitened CNN Features
cs.CV
We combine features extracted from pre-trained convolutional neural networks (CNNs) with the fast, linear Exemplar-LDA classifier to get the advantages of both: the high detection performance of CNNs, automatic feature engineering, fast model learning from few training samples and efficient sliding-window detection. Th...
computer science
27,701
Surface Normals in the Wild
cs.CV
We study the problem of single-image depth estimation for images in the wild. We collect human annotated surface normals and use them to train a neural network that directly predicts pixel-wise depth. We propose two novel loss functions for training with surface normal annotations. Experiments on NYU Depth and our own ...
computer science