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30,302
Blind estimation of white Gaussian noise variance in highly textured images
cs.CV
In the paper, a new method of blind estimation of noise variance in a single highly textured image is proposed. An input image is divided into 8x8 blocks and discrete cosine transform (DCT) is performed for each block. A part of 64 DCT coefficients with lowest energy calculated through all blocks is selected for furthe...
computer science
30,303
DeepSkeleton: Skeleton Map for 3D Human Pose Regression
cs.CV
Despite recent success on 2D human pose estimation, 3D human pose estimation still remains an open problem. A key challenge is the ill-posed depth ambiguity nature. This paper presents a novel intermediate feature representation named skeleton map for regression. It distills structural context from irrelavant propertie...
computer science
30,304
Sparse Photometric 3D Face Reconstruction Guided by Morphable Models
cs.CV
We present a novel 3D face reconstruction technique that leverages sparse photometric stereo (PS) and latest advances on face registration/modeling from a single image. We observe that 3D morphable faces approach provides a reasonable geometry proxy for light position calibration. Specifically, we develop a robust opti...
computer science
30,305
PointFusion: Deep Sensor Fusion for 3D Bounding Box Estimation
cs.CV
We present PointFusion, a generic 3D object detection method that leverages both image and 3D point cloud information. Unlike existing methods that either use multi-stage pipelines or hold sensor and dataset-specific assumptions, PointFusion is conceptually simple and application-agnostic. The image data and the raw po...
computer science
30,306
Occlusion-aware Hand Pose Estimation Using Hierarchical Mixture Density Network
cs.CV
Hand pose estimation is to predict the pose parameters representing a 3D hand model, such as locations of hand joints. This problem is very challenging due to large changes in viewpoints and articulations, and intense self-occlusions, etc. Many researchers have investigated the problem from both aspects of input featur...
computer science
30,307
Learning Spatio-temporal Features with Partial Expression Sequences for on-the-Fly Prediction
cs.CV
Spatio-temporal feature encoding is essential for encoding facial expression dynamics in video sequences. At test time, most spatio-temporal encoding methods assume that a temporally segmented sequence is fed to a learned model, which could require the prediction to wait until the full sequence is available to an auxil...
computer science
30,308
Joint Blind Motion Deblurring and Depth Estimation of Light Field
cs.CV
Removing camera motion blur from a single light field is a challenging task since it is highly ill-posed inverse problem. The problem becomes even worse when blur kernel varies spatially due to scene depth variation and high-order camera motion. In this paper, we propose a novel algorithm to estimate all blur model var...
computer science
30,309
Local Jet Pattern: A Robust Descriptor for Texture Classification
cs.CV
Methods based on local image features have recently shown promise for texture classification tasks, especially in the presence of large intra-class variation due to illumination, scale, and viewpoint changes. Inspired by the theories of image structure analysis, this paper presents a simple, efficient, yet robust descr...
computer science
30,310
A Generative Model of 3D Object Layouts in Apartments
cs.CV
Understanding indoor scenes is an important task in computer vision. This task is typically ambiguous, so we require a strong prior, that captures the regularity of indoor environments. This is naturally expressed by a probabilistic model over 3D room layouts and geometry, reasoning over complex layouts in 3D space, in...
computer science
30,311
Saccade Sequence Prediction: Beyond Static Saliency Maps
cs.CV
Visual attention is a field with a considerable history, with eye movement control and prediction forming an important subfield. Fixation modeling in the past decades has been largely dominated computationally by a number of highly influential bottom-up saliency models, such as the Itti-Koch-Niebur model. The accuracy ...
computer science
30,312
Colour Constancy: Biologically-inspired Contrast Variant Pooling Mechanism
cs.CV
Pooling is a ubiquitous operation in image processing algorithms that allows for higher-level processes to collect relevant low-level features from a region of interest. Currently, max-pooling is one of the most commonly used operators in the computational literature. However, it can lack robustness to outliers due to ...
computer science
30,313
Detection-aided liver lesion segmentation using deep learning
cs.CV
A fully automatic technique for segmenting the liver and localizing its unhealthy tissues is a convenient tool in order to diagnose hepatic diseases and assess the response to the according treatments. In this work we propose a method to segment the liver and its lesions from Computed Tomography (CT) scans using Convol...
computer science
30,314
Deep Learning for identifying radiogenomic associations in breast cancer
cs.CV
Purpose: To determine whether deep learning models can distinguish between breast cancer molecular subtypes based on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Materials and methods: In this institutional review board-approved single-center study, we analyzed DCE-MR images of 270 patients at our in...
computer science
30,315
Towards Alzheimer's Disease Classification through Transfer Learning
cs.CV
Detection of Alzheimer's Disease (AD) from neuroimaging data such as MRI through machine learning have been a subject of intense research in recent years. Recent success of deep learning in computer vision have progressed such research further. However, common limitations with such algorithms are reliance on a large nu...
computer science
30,316
Structured learning and detailed interpretation of minimal object images
cs.CV
We model the process of human full interpretation of object images, namely the ability to identify and localize all semantic features and parts that are recognized by human observers. The task is approached by dividing the interpretation of the complete object to the interpretation of multiple reduced but interpretable...
computer science
30,317
Optical Flow Guided Feature: A Fast and Robust Motion Representation for Video Action Recognition
cs.CV
Motion representation plays a vital role in human action recognition in videos. In this study, we introduce a novel compact motion representation for video action recognition, named Optical Flow guided Feature (OFF), which enables the network to distill temporal information through a fast and robust approach. The OFF i...
computer science
30,318
Predicting Depression Severity by Multi-Modal Feature Engineering and Fusion
cs.CV
We present our preliminary work to determine if patient's vocal acoustic, linguistic, and facial patterns could predict clinical ratings of depression severity, namely Patient Health Questionnaire depression scale (PHQ-8). We proposed a multi modal fusion model that combines three different modalities: audio, video , a...
computer science
30,319
Future Person Localization in First-Person Videos
cs.CV
We present a new task that predicts future locations of people observed in first-person videos. Consider a first-person video stream continuously recorded by a wearable camera. Given a short clip of a person that is extracted from the complete stream, we aim to predict his location in future frames. To facilitate this ...
computer science
30,320
A Closer Look at Spatiotemporal Convolutions for Action Recognition
cs.CV
In this paper we discuss several forms of spatiotemporal convolutions for video analysis and study their effects on action recognition. Our motivation stems from the observation that 2D CNNs applied to individual frames of the video have remained solid performers in action recognition. In this work we empirically demon...
computer science
30,321
ArbiText: Arbitrary-Oriented Text Detection in Unconstrained Scene
cs.CV
Arbitrary-oriented text detection in the wild is a very challenging task, due to the aspect ratio, scale, orientation, and illumination variations. In this paper, we propose a novel method, namely Arbitrary-oriented Text (or ArbText for short) detector, for efficient text detection in unconstrained natural scene images...
computer science
30,322
A novel graph structure for salient object detection based on divergence background and compact foreground
cs.CV
In this paper, we propose an efficient and discriminative model for salient object detection. Our method is carried out in a stepwise mechanism based on both divergence background and compact foreground cues. In order to effectively enhance the distinction between nodes along object boundaries and the similarity among ...
computer science
30,323
Unsupervised Learning for Cell-level Visual Representation in Histopathology Images with Generative Adversarial Networks
cs.CV
The visual attributes of cells, such as the nuclear morphology and chromatin openness, are critical for histopathology image analysis. By learning cell-level visual representation, we can obtain a rich mix of features that are highly reusable for various tasks, such as cell-level classification, nuclei segmentation, an...
computer science
30,324
Radially-Distorted Conjugate Translations
cs.CV
This paper introduces the first minimal solvers that jointly solve for affine-rectification and radial lens distortion from coplanar repeated patterns. Even with imagery from moderately distorted lenses, plane rectification using the pinhole camera model is inaccurate or invalid. The proposed solvers incorporate lens d...
computer science
30,325
3DContextNet: K-d Tree Guided Hierarchical Learning of Point Clouds Using Local Contextual Cues
cs.CV
3D data such as point clouds and meshes are becoming more and more available. The goal of this paper is to obtain 3D object and scene classification and semantic segmentation. Because point clouds have irregular formats, most of the existing methods convert the 3D data into multiple 2D projection images or 3D voxel gri...
computer science
30,326
Improving Video Generation for Multi-functional Applications
cs.CV
In this paper, we aim to improve the state-of-the-art video generative adversarial networks (GANs) with a view towards multi-functional applications. Our improved video GAN model does not separate foreground from background nor dynamic from static patterns, but learns to generate the entire video clip conjointly. Our m...
computer science
30,327
Spatially-Adaptive Filter Units for Deep Neural Networks
cs.CV
Classical deep convolutional networks increase receptive field size by either gradual resolution reduction or application of hand-crafted dilated convolutions to prevent increase in the number of parameters. In this paper we propose a novel displaced aggregation unit (DAU) that does not require hand-crafting. In contra...
computer science
30,328
Auxiliary Guided Autoregressive Variational Autoencoders
cs.CV
Generative modeling of high-dimensional data is a key problem in machine learning. Successful approaches include latent variable models and autoregressive models. The complementary strengths of these approaches, to model global and local image statistics respectively, suggest hybrid models combining the strengths of bo...
computer science
30,329
ROAD: Reality Oriented Adaptation for Semantic Segmentation of Urban Scenes
cs.CV
Exploiting synthetic data to learn deep models has attracted increasing attention in recent years. However, the intrinsic domain difference between synthetic and real images usually causes a significant performance drop when applying the learned model to real world scenarios. This is mainly due to two reasons: 1) the m...
computer science
30,330
Relation Networks for Object Detection
cs.CV
Although it is well believed for years that modeling relations between objects would help object recognition, there has not been evidence that the idea is working in the deep learning era. All state-of-the-art object detection systems still rely on recognizing object instances individually, without exploiting their rel...
computer science
30,331
Towards High Performance Video Object Detection
cs.CV
There has been significant progresses for image object detection in recent years. Nevertheless, video object detection has received little attention, although it is more challenging and more important in practical scenarios. Built upon the recent works, this work proposes a unified approach based on the principle of ...
computer science
30,332
Multi-Channel CNN-based Object Detection for Enhanced Situation Awareness
cs.CV
Object Detection is critical for automatic military operations. However, the performance of current object detection algorithms is deficient in terms of the requirements in military scenarios. This is mainly because the object presence is hard to detect due to the indistinguishable appearance and dramatic changes of ob...
computer science
30,333
Super SloMo: High Quality Estimation of Multiple Intermediate Frames for Video Interpolation
cs.CV
Given two consecutive frames, video interpolation aims at generating intermediate frame(s) to form both spatially and temporally coherent video sequences. While most existing methods focus on single-frame interpolation, we propose an end-to-end convolutional neural network for variable-length multi-frame video interpol...
computer science
30,334
Budget-Aware Activity Detection with A Recurrent Policy Network
cs.CV
In this paper, we address the challenging problem of effi- cient temporal activity detection in untrimmed long videos. While most recent work has focused and advanced the de- tection accuracy, the inference time can take seconds to minutes in processing one video, which is computationally prohibitive for many applicati...
computer science
30,335
Graph Distillation for Action Detection with Privileged Information
cs.CV
In this work, we propose a technique that tackles the video understanding problem under a realistic, demanding condition in which we have limited labeled data and partially observed training modalities. Common methods such as transfer learning do not take advantage of the rich information from extra modalities potentia...
computer science
30,336
Semantic Photometric Bundle Adjustment on Natural Sequences
cs.CV
The problem of obtaining dense reconstruction of an object in a natural sequence of images has been long studied in computer vision. Classically this problem has been solved through the application of bundle adjustment (BA). More recently, excellent results have been attained through the application of photometric bund...
computer science
30,337
Video retrieval based on deep convolutional neural network
cs.CV
Recently, with the enormous growth of online videos, fast video retrieval research has received increasing attention. As an extension of image hashing techniques, traditional video hashing methods mainly depend on hand-crafted features and transform the real-valued features into binary hash codes. As videos provide far...
computer science
30,338
Distance-based Camera Network Topology Inference for Person Re-identification
cs.CV
In this paper, we propose a novel distance-based camera network topology inference method for efficient person re-identification. To this end, we first calibrate each camera and estimate relative scales between cameras. Using the calibration results of multiple cameras, we calculate the speed of each person and infer t...
computer science
30,339
Learning Depth from Monocular Videos using Direct Methods
cs.CV
The ability to predict depth from a single image - using recent advances in CNNs - is of increasing interest to the vision community. Unsupervised strategies to learning are particularly appealing as they can utilize much larger and varied monocular video datasets during learning without the need for ground truth depth...
computer science
30,340
Inertial-aided Rolling Shutter Relative Pose Estimation
cs.CV
Relative pose estimation is a fundamental problem in computer vision and it has been studied for conventional global shutter cameras for decades. However, recently, a rolling shutter camera has been widely used due to its low cost imaging capability and, since the rolling shutter camera captures the image line-by-line,...
computer science
30,341
Rank of Experts: Detection Network Ensemble
cs.CV
The recent advances of convolutional detectors show impressive performance improvement for large scale object detection. However, in general, the detection performance usually decreases as the object classes to be detected increases, and it is a practically challenging problem to train a dominant model for all classes ...
computer science
30,342
Delineation of Skin Strata in Reflectance Confocal Microscopy Images using Recurrent Convolutional Networks with Toeplitz Attention
cs.CV
Reflectance confocal microscopy (RCM) is an effective, non-invasive pre-screening tool for skin cancer diagnosis, but it requires extensive training and experience to assess accurately. There are few quantitative tools available to standardize image acquisition and analysis, and the ones that are available are not inte...
computer science
30,343
3D Facial Action Units Recognition for Emotional Expression
cs.CV
The muscular activities caused the activation of certain AUs for every facial expression at the certain duration of time throughout the facial expression. This paper presents the methods to recognise facial Action Unit (AU) using facial distance of the facial features which activates the muscles. The seven facial actio...
computer science
30,344
A 3D Coarse-to-Fine Framework for Automatic Pancreas Segmentation
cs.CV
In this paper, we adopt 3D CNNs to segment the pancreas in CT images. Although deep neural networks have been proven to be very effective on many 2D vision tasks, it is still challenging to apply them to 3D applications due to the limited amount of annotated 3D data and limited computational resources. We propose a nov...
computer science
30,345
InverseNet: Solving Inverse Problems with Splitting Networks
cs.CV
We propose a new method that uses deep learning techniques to solve the inverse problems. The inverse problem is cast in the form of learning an end-to-end mapping from observed data to the ground-truth. Inspired by the splitting strategy widely used in regularized iterative algorithm to tackle inverse problems, the ma...
computer science
30,346
Real-time Semantic Image Segmentation via Spatial Sparsity
cs.CV
We propose an approach to semantic (image) segmentation that reduces the computational costs by a factor of 25 with limited impact on the quality of results. Semantic segmentation has a number of practical applications, and for most such applications the computational costs are critical. The method follows a typical tw...
computer science
30,347
Learning Deep Representations for Word Spotting Under Weak Supervision
cs.CV
Convolutional Neural Networks have made their mark in various fields of computer vision in recent years. They have achieved state-of-the-art performance in the field of document analysis as well. However, CNNs require a large amount of annotated training data and, hence, great manual effort. In our approach, we introdu...
computer science
30,348
Deformable Shape Completion with Graph Convolutional Autoencoders
cs.CV
The availability of affordable and portable depth sensors has made scanning objects and people simpler than ever. However, dealing with occlusions and missing parts is still a significant challenge. The problem of reconstructing a (possibly non-rigidly moving) 3D object from a single or multiple partial scans has recei...
computer science
30,349
Neural Signatures for Licence Plate Re-identification
cs.CV
The problem of vehicle licence plate re-identification is generally considered as a one-shot image retrieval problem. The objective of this task is to learn a feature representation (called a "signature") for licence plates. Incoming licence plate images are converted to signatures and matched to a previously collected...
computer science
30,350
Unsupervised Generative Adversarial Cross-modal Hashing
cs.CV
Cross-modal hashing aims to map heterogeneous multimedia data into a common Hamming space, which can realize fast and flexible retrieval across different modalities. Unsupervised cross-modal hashing is more flexible and applicable than supervised methods, since no intensive labeling work is involved. However, existing ...
computer science
30,351
Precision Learning: Towards Use of Known Operators in Neural Networks
cs.CV
In this paper, we consider the use of prior knowledge within neural networks. In particular, we investigate the effect of a known transform within the mapping from input data space to the output domain. We demonstrate that use of known transforms is able to change maximal error bounds. In order to explore the effect ...
computer science
30,352
Unsupervised Classification of PolSAR Data Using a Scattering Similarity Measure Derived from a Geodesic Distance
cs.CV
In this letter, we propose a novel technique for obtaining scattering components from Polarimetric Synthetic Aperture Radar (PolSAR) data using the geodesic distance on the unit sphere. This geodesic distance is obtained between an elementary target and the observed Kennaugh matrix, and it is further utilized to comput...
computer science
30,353
Single-Shot Object Detection with Enriched Semantics
cs.CV
We propose a novel single shot object detection network named Detection with Enriched Semantics (DES). Our motivation is to enrich the semantics of object detection features within a typical deep detector, by a semantic segmentation branch and a location-agnostic module. The segmentation branch is supervised by weak se...
computer science
30,354
Unsupervised Learning for Color Constancy
cs.CV
Most digital camera pipelines use color constancy methods to reduce the influence of illumination and camera sensor on the colors of scene objects. The highest accuracy of color correction is obtained with learning-based color constancy methods, but they require a significant amount of calibrated training images with k...
computer science
30,355
Image to Image Translation for Domain Adaptation
cs.CV
We propose a general framework for unsupervised domain adaptation, which allows deep neural networks trained on a source domain to be tested on a different target domain without requiring any training annotations in the target domain. This is achieved by adding extra networks and losses that help regularize the feature...
computer science
30,356
Learning Neural Markers of Schizophrenia Disorder Using Recurrent Neural Networks
cs.CV
Smart systems that can accurately diagnose patients with mental disorders and identify effective treatments based on brain functional imaging data are of great applicability and are gaining much attention. Most previous machine learning studies use hand-designed features, such as functional connectivity, which does not...
computer science
30,357
Multi-Content GAN for Few-Shot Font Style Transfer
cs.CV
In this work, we focus on the challenge of taking partial observations of highly-stylized text and generalizing the observations to generate unobserved glyphs in the ornamented typeface. To generate a set of multi-content images following a consistent style from very few examples, we propose an end-to-end stacked condi...
computer science
30,358
Splenomegaly Segmentation using Global Convolutional Kernels and Conditional Generative Adversarial Networks
cs.CV
Spleen volume estimation using automated image segmentation technique may be used to detect splenomegaly (abnormally enlarged spleen) on Magnetic Resonance Imaging (MRI) scans. In recent years, Deep Convolutional Neural Networks (DCNN) segmentation methods have demonstrated advantages for abdominal organ segmentation. ...
computer science
30,359
Improved Stability of Whole Brain Surface Parcellation with Multi-Atlas Segmentation
cs.CV
Whole brain segmentation and cortical surface parcellation are essential in understanding the anatomical-functional relationships of the brain. Multi-atlas segmentation has been regarded as one of the leading segmentation methods for the whole brain segmentation. In our recent work, the multi-atlas technique has been a...
computer science
30,360
Lecture video indexing using boosted margin maximizing neural networks
cs.CV
This paper presents a novel approach for lecture video indexing using a boosted deep convolutional neural network system. The indexing is performed by matching high quality slide images, for which text is either known or extracted, to lower resolution video frames with possible noise, perspective distortion, and occlus...
computer science
30,361
Fruit recognition from images using deep learning
cs.CV
In this paper we introduce a new, high-quality, dataset of images containing fruits. We also present the results of some numerical experiment for training a neural network to detect fruits. We discuss the reason why we chose to use fruits in this project by proposing a few applications that could use this kind of neura...
computer science
30,362
Taming Adversarial Domain Transfer with Structural Constraints for Image Enhancement
cs.CV
The goal of this work is to improve images of traffic scenes that are degraded by natural causes such as fog, rain and limited visibility during the night. For these applications, it is next to impossible to get pixel perfect pairs of the same scene, with and without the degrading conditions. This makes it unsuitable f...
computer science
30,363
From Pixels to Object Sequences: Recurrent Semantic Instance Segmentation
cs.CV
We present a recurrent model for semantic instance segmentation that sequentially generates binary masks and their associated class probabilities for every object in an image. Our proposed system is trainable end-to-end from an input image to a sequence of labeled masks and, compared to methods relying on object propos...
computer science
30,364
DR-Net: Transmission Steered Single Image Dehazing Network with Weakly Supervised Refinement
cs.CV
Despite the recent progress in image dehazing, several problems remain largely unsolved such as robustness for varying scenes, the visual quality of reconstructed images, and effectiveness and flexibility for applications. To tackle these problems, we propose a new deep network architecture for single image dehazing ca...
computer science
30,365
Compressed Video Action Recognition
cs.CV
Training robust deep video representations has proven to be much more challenging than learning deep image representations and consequently hampered tasks like video action recognition. This is in part due to the enormous size of raw video streams, the associated amount of computation required, and the high temporal re...
computer science
30,366
GAGAN: Geometry-Aware Generative Adversarial Networks
cs.CV
Deep generative models learned through adversarial training have become increasingly popular for their ability to generate naturalistic image textures. However, apart from the visual texture, the visual appearance of objects is significantly affected by their shape geometry, information which is not taken into account ...
computer science
30,367
Low-Rank Tensor Completion by Truncated Nuclear Norm Regularization
cs.CV
Currently, low-rank tensor completion has gained cumulative attention in recovering incomplete visual data whose partial elements are missing. By taking a color image or video as a three-dimensional (3D) tensor, previous studies have suggested several definitions of tensor nuclear norm. However, they have limitations a...
computer science
30,368
Automatic Recognition of Coal and Gangue based on Convolution Neural Network
cs.CV
We designed a gangue sorting system,and built a convolutional neural network model based on AlexNet. Data enhancement and transfer learning are used to solve the problem which the convolution neural network has insufficient training data in the training stage. An object detection and region clipping algorithm is propos...
computer science
30,369
Feature Agglomeration Networks for Single Stage Face Detection
cs.CV
Recent years have witnessed promising results of face detection using deep learning, especially for the family of region-based convolutional neural networks (R-CNN) methods and their variants. Despite making remarkable progresses, face detection in the wild remains an open research challenge especially when detecting f...
computer science
30,370
Cascade R-CNN: Delving into High Quality Object Detection
cs.CV
In object detection, an intersection over union (IoU) threshold is required to define positives and negatives. An object detector, trained with low IoU threshold, e.g. 0.5, usually produces noisy detections. However, detection performance tends to degrade with increasing the IoU thresholds. Two main factors are respons...
computer science
30,371
Multimodal Visual Concept Learning with Weakly Supervised Techniques
cs.CV
Despite the availability of a huge amount of video data accompanied by descriptive texts, it is not always easy to exploit the information contained in natural language in order to automatically recognize video concepts. Towards this goal, in this paper we use textual cues as means of supervision, introducing two weakl...
computer science
30,372
A Deep Learning Approach to Drone Monitoring
cs.CV
A drone monitoring system that integrates deep-learning-based detection and tracking modules is proposed in this work. The biggest challenge in adopting deep learning methods for drone detection is the limited amount of training drone images. To address this issue, we develop a model-based drone augmentation technique ...
computer science
30,373
Learning Object Detectors from Scratch with Gated Recurrent Feature Pyramids
cs.CV
In this paper, we propose gated recurrent feature pyramid for the problem of learning object detection from scratch. Our approach is motivated by the recent work of deeply supervised object detector (DSOD), but explores new network architecture that dynamically adjusts the supervision intensities of intermediate layers...
computer science
30,374
Composition-aided Sketch-realistic Portrait Generation
cs.CV
Sketch portrait generation is of wide applications including digital entertainment and law enforcement. Despite the great progress achieved by existing face sketch generation methods, they mostly yield blurred effects and great deformation over various facial parts. In order to tackle this challenge, we propose a novel...
computer science
30,375
Learning Reduced-Resolution and Super-Resolution Networks in Synch
cs.CV
Recent studies have shown that deep convolutional neural networks achieve the excellent performance on image super-resolution. However, CNN-based methods restore the super-resolution results depending on interpolations a lot. In this paper, we present an end-to-end network (Reduced & Super-Resolution Network, RSRNet) f...
computer science
30,376
Composite Quantization
cs.CV
This paper studies the compact coding approach to approximate nearest neighbor search. We introduce a composite quantization framework. It uses the composition of several ($M$) elements, each of which is selected from a different dictionary, to accurately approximate a $D$-dimensional vector, thus yielding accurate sea...
computer science
30,377
FSSD: Feature Fusion Single Shot Multibox Detector
cs.CV
SSD (Single Shot Multibox Detetor) is one of the best object detection algorithms with both high accuracy and fast speed. However, SSD's feature pyramid detection method makes it hard to fuse the features from different scales. In this paper, we proposed FSSD (Feature Fusion Single Shot Multibox Detector), an enhanced ...
computer science
30,378
Leaf Identification Using a Deep Convolutional Neural Network
cs.CV
Convolutional neural networks (CNNs) have become popular especially in computer vision in the last few years because they achieved outstanding performance on different tasks, such as image classifications. We propose a nine-layer CNN for leaf identification using the famous Flavia and Foliage datasets. Usually the supe...
computer science
30,379
Face Translation between Images and Videos using Identity-aware CycleGAN
cs.CV
This paper presents a new problem of unpaired face translation between images and videos, which can be applied to facial video prediction and enhancement. In this problem there exist two major technical challenges: 1) designing a robust translation model between static images and dynamic videos, and 2) preserving facia...
computer science
30,380
Feature Generating Networks for Zero-Shot Learning
cs.CV
Suffering from the extreme training data imbalance between seen and unseen classes, most of existing state-of-the-art approaches fail to achieve satisfactory results for the challenging generalized zero-shot learning task. To circumvent the need for labeled examples of unseen classes, we propose a novel generative adve...
computer science
30,381
Energy-relaxed Wasserstein GANs(EnergyWGAN): Towards More Stable and High Resolution Image Generation
cs.CV
Recently, generative adversarial networks (GANs) have achieved great impacts on a broad number of applications, including low resolution(LR) image synthesis. However, they suffer from unstable training especially when image resolution increases. To overcome this bottleneck, this paper generalizes the state-of-the-art W...
computer science
30,382
Towards Faster Training of Global Covariance Pooling Networks by Iterative Matrix Square Root Normalization
cs.CV
Global covariance pooling in Convolutional neural neworks has achieved impressive improvement over the classical first-order pooling. Recent works have shown matrix square root normalization plays a central role in achieving state-of-the-art performance. However, existing methods depending heavily on eigenvalue decompo...
computer science
30,383
Learning Deep Correspondence through Prior and Posterior Feature Constancy
cs.CV
Stereo matching algorithms usually consist of four steps, including matching cost calculation, matching cost aggregation, disparity calculation, and disparity refinement. Existing CNN-based methods only adopt CNN to solve parts of the four steps, or use different networks to deal with different steps, making them diffi...
computer science
30,384
CNN based Learning using Reflection and Retinex Models for Intrinsic Image Decomposition
cs.CV
Most of the traditional work on intrinsic image decomposition rely on deriving priors about scene characteristics. On the other hand, recent research use deep learning models as in-and-out black box and do not consider the well-established, traditional image formation process as the basis of their intrinsic learning pr...
computer science
30,385
GANerated Hands for Real-time 3D Hand Tracking from Monocular RGB
cs.CV
We address the highly challenging problem of real-time 3D hand tracking based on a monocular RGB-only sequence. Our tracking method combines a convolutional neural network with a kinematic 3D hand model, such that it generalizes well to unseen data, is robust to occlusions and varying camera viewpoints, and leads to an...
computer science
30,386
SOT for MOT
cs.CV
In this paper we present a robust tracker to solve the multiple object tracking (MOT) problem, under the framework of tracking-by-detection. As the first contribution, we innovatively combine single object tracking (SOT) algorithms with multiple object tracking algorithms, and our results show that SOT is a general way...
computer science
30,387
A Generalized Motion Pattern and FCN based approach for retinal fluid detection and segmentation
cs.CV
SD-OCT is a non-invasive cross-sectional imaging modality used for diagnosis of macular defects. Efficient detection and segmentation of the abnormalities seen as biomarkers in OCT can help in analyzing the progression of the disease and advising effective treatment for the associated disease. In this work, we propose ...
computer science
30,388
Robust 3D Action Recognition through Sampling Local Appearances and Global Distributions
cs.CV
3D action recognition has broad applications in human-computer interaction and intelligent surveillance. However, recognizing similar actions remains challenging since previous literature fails to capture motion and shape cues effectively from noisy depth data. In this paper, we propose a novel two-layer Bag-of-Visual-...
computer science
30,389
An End-to-end 3D Convolutional Neural Network for Action Detection and Segmentation in Videos
cs.CV
In this paper, we propose an end-to-end 3D CNN for action detection and segmentation in videos. The proposed architecture is a unified deep network that is able to recognize and localize action based on 3D convolution features. A video is first divided into equal length clips and next for each clip a set of tube propos...
computer science
30,390
Learning to Segment Moving Objects
cs.CV
We study the problem of segmenting moving objects in unconstrained videos. Given a video, the task is to segment all the objects that exhibit independent motion in at least one frame. We formulate this as a learning problem and design our framework with three cues: (i) independent object motion between a pair of frames...
computer science
30,391
Why my photos look sideways or upside down? Detecting Canonical Orientation of Images using Convolutional Neural Networks
cs.CV
Image orientation detection requires high-level scene understanding. Humans use object recognition and contextual scene information to correctly orient images. In literature, the problem of image orientation detection is mostly confronted by using low-level vision features, while some approaches incorporate few easily ...
computer science
30,392
Iterative Deep Learning for Network Topology Extraction
cs.CV
This paper tackles the task of estimating the topology of filamentary networks such as retinal vessels and road networks. Building on top of a global model that performs a dense semantical classification of the pixels of the image, we design a Convolutional Neural Network (CNN) that predicts the local connectivity betw...
computer science
30,393
A Perceptual Measure for Deep Single Image Camera Calibration
cs.CV
Most current single image camera calibration methods rely on specific image features or user input, and cannot be applied to natural images captured in uncontrolled settings. We propose inferring directly camera calibration parameters from a single image using a deep convolutional neural network. This network is traine...
computer science
30,394
SfSNet : Learning Shape, Reflectance and Illuminance of Faces in the Wild
cs.CV
We present SfSNet, an end-to-end learning framework for producing an accurate decomposition of an unconstrained image of a human face into shape, reflectance and illuminance. Our network is designed to reflect a physical lambertian rendering model. SfSNet learns from a mixture of labeled synthetic and unlabeled real wo...
computer science
30,395
Self-supervised Learning of Motion Capture
cs.CV
Current state-of-the-art solutions for motion capture from a single camera are optimization driven: they optimize the parameters of a 3D human model so that its re-projection matches measurements in the video (e.g. person segmentation, optical flow, keypoint detections etc.). Optimization models are susceptible to loca...
computer science
30,396
Long-Term Visual Object Tracking Benchmark
cs.CV
In this paper, we propose a new long video dataset (called Track Long and Prosper - TLP) and benchmark for visual object tracking. The dataset consists of 50 videos from real world scenarios, encompassing a duration of over 400 minutes (676K frames), making it more than 20 folds larger in average duration per sequence ...
computer science
30,397
3D Semantic Trajectory Reconstruction from 3D Pixel Continuum
cs.CV
This paper presents a method to reconstruct dense semantic trajectory stream of human interactions in 3D from synchronized multiple videos. The interactions inherently introduce self-occlusion and illumination/appearance/shape changes, resulting in highly fragmented trajectory reconstruction with noisy and coarse seman...
computer science
30,398
A+D-Net: Shadow Detection with Adversarial Shadow Attenuation
cs.CV
Single image shadow detection is a very challenging problem because of the limited amount of information available in one image, as well as the scarcity of annotated training data. In this work, we propose a novel adversarial training based framework that yields a high performance shadow detection network (D-Net). D-Ne...
computer science
30,399
Imagine it for me: Generative Adversarial Approach for Zero-Shot Learning from Noisy Texts
cs.CV
Most existing zero-shot learning methods consider the problem as a visual semantic embedding one. Given the demonstrated capability of Generative Adversarial Networks(GANs) to generate images, we instead leverage GANs to imagine unseen categories from text descriptions and hence recognize novel classes with no examples...
computer science
30,400
Visual to Sound: Generating Natural Sound for Videos in the Wild
cs.CV
As two of the five traditional human senses (sight, hearing, taste, smell, and touch), vision and sound are basic sources through which humans understand the world. Often correlated during natural events, these two modalities combine to jointly affect human perception. In this paper, we pose the task of generating soun...
computer science
30,401
Beyond Grand Theft Auto V for Training, Testing and Enhancing Deep Learning in Self Driving Cars
cs.CV
As an initial assessment, over 480,000 labeled virtual images of normal highway driving were readily generated in Grand Theft Auto V's virtual environment. Using these images, a CNN was trained to detect following distance to cars/objects ahead, lane markings, and driving angle (angular heading relative to lane centerl...
computer science