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31,002
Build a Compact Binary Neural Network through Bit-level Sensitivity and Data Pruning
cs.CV
Convolutional neural network (CNN) has been widely used for vision-based tasks. Due to the high computational complexity and memory storage requirement, it is hard to directly deploy a full-precision CNN on embedded devices. The hardware-friendly designs are needed for re-source-limited and energy-constrained embed-ded...
computer science
31,003
Deep Learning Framework for Multi-class Breast Cancer Histology Image Classification
cs.CV
In this work, we present a deep learning framework for multi-class breast cancer image classification as our submission to the International Conference on Image Analysis and Recognition (ICIAR) 2018 Grand Challenge on BreAst Cancer Histology images (BACH). As these histology images are too large to fit into GPU memory,...
computer science
31,004
Recent Advances in Efficient Computation of Deep Convolutional Neural Networks
cs.CV
Deep neural networks have evolved remarkably over the past few years and they are currently the fundamental tools of many intelligent systems. At the same time, the computational complexity and resource consumption of these networks also continue to increase. This will pose a significant challenge to the deployment of ...
computer science
31,005
Learning the Synthesizability of Dynamic Texture Samples
cs.CV
A dynamic texture (DT) refers to a sequence of images that exhibit temporal regularities and has many applications in computer vision and graphics. Given an exemplar of dynamic texture, it is a dynamic but challenging task to generate new samples with high quality that are perceptually similar to the input exemplar, wh...
computer science
31,006
Ensembling Neural Networks for Digital Pathology Images Classification and Segmentation
cs.CV
In the last years, neural networks have proven to be a powerful framework for various image analysis problems. However, some application domains have specific limitations. Notably, digital pathology is an example of such fields due to tremendous image sizes and quite limited number of training examples available. In th...
computer science
31,007
Image Posterization Using Fuzzy Logic and Bilateral Filter
cs.CV
Image posterization is converting images with a large number of tones into synthetic images with distinct flat areas and a fewer number of tones. In this technical report, we present the implementation and results of using fuzzy logic in order to generate a posterized image in a simple and fast way. The image filter is...
computer science
31,008
Museum Exhibit Identification Challenge for Domain Adaptation and Beyond
cs.CV
In this paper, we approach an open problem of artwork identification and propose a new dataset dubbed Open Museum Identification Challenge (Open MIC). It contains photos of exhibits captured in 10 distinct exhibition spaces of several museums which showcase paintings, timepieces, sculptures, glassware, relics, science ...
computer science
31,009
End2You -- The Imperial Toolkit for Multimodal Profiling by End-to-End Learning
cs.CV
We introduce End2You -- the Imperial College London toolkit for multimodal profiling by end-to-end deep learning. End2You is an open-source toolkit implemented in Python and is based on Tensorflow. It provides capabilities to train and evaluate models in an end-to-end manner, i.e., using raw input. It supports input fr...
computer science
31,010
Searching for Representative Modes on Hypergraphs for Robust Geometric Model Fitting
cs.CV
In this paper, we propose a simple and effective {geometric} model fitting method to fit and segment multi-structure data even in the presence of severe outliers. We cast the task of geometric model fitting as a representative mode-seeking problem on hypergraphs. Specifically, a hypergraph is firstly constructed, where...
computer science
31,011
Human Action Adverb Recognition: ADHA Dataset and A Three-Stream Hybrid Model
cs.CV
We introduce the first benchmark for a new problem --- recognizing human action adverbs (HAA): "Adverbs Describing Human Actions" (ADHA). This is the first step for computer vision to change over from pattern recognition to real AI. We demonstrate some key features of ADHA: a semantically complete set of adverbs descri...
computer science
31,012
Efficient Video Object Segmentation via Network Modulation
cs.CV
Video object segmentation targets at segmenting a specific object throughout a video sequence, given only an annotated first frame. Recent deep learning based approaches find it effective by fine-tuning a general-purpose segmentation model on the annotated frame using hundreds of iterations of gradient descent. Despite...
computer science
31,013
Image Synthesis in Multi-Contrast MRI with Conditional Generative Adversarial Networks
cs.CV
Acquiring images of the same anatomy with multiple different contrasts increases the diversity of diagnostic information available in an MR exam. Yet, scan time limitations may prohibit acquisition of certain contrasts, and images for some contrast may be corrupted by noise and artifacts. In such cases, the ability to ...
computer science
31,014
Tracking Multiple Moving Objects Using Unscented Kalman Filtering Techniques
cs.CV
It is an important task to reliably detect and track multiple moving objects for video surveillance and monitoring. However, when occlusion occurs in nonlinear motion scenarios, many existing methods often fail to continuously track multiple moving objects of interest. In this paper we propose an effective approach for...
computer science
31,015
Face Destylization
cs.CV
Numerous style transfer methods which produce artistic styles of portraits have been proposed to date. However, the inverse problem of converting the stylized portraits back into realistic faces is yet to be investigated thoroughly. Reverting an artistic portrait to its original photo-realistic face image has potential...
computer science
31,016
Accurate brain extraction using Active Shape Model and Convolutional Neural Networks
cs.CV
Brain extraction or skull stripping is a fundamental procedure in most of neuroimaging processing systems. The performance of this procedure has had a critical impact on the success of neuroimaging analysis. After several years of research and development, brain extraction still remains a challenging problem. In this p...
computer science
31,017
Face recognition for monitoring operator shift in railways
cs.CV
Train Pilot is a very tedious and stressful job. Pilots must be vigilant at all times and its easy for them to lose track of time of shift. In countries like USA the pilots are mandated by law to adhere to 8 hour shifts. If they exceed 8 hours of shift the railroads may be penalized for over-tiring their drivers. The p...
computer science
31,018
Zero-Shot Kernel Learning
cs.CV
In this paper, we address an open problem of zero-shot learning. Its principle is based on learning a mapping that associates feature vectors extracted from i.e. images and attribute vectors that describe objects and/or scenes of interest. In turns, this allows classifying unseen object classes and/or scenes by matchin...
computer science
31,019
Data Augmentation of Railway Images for Track Inspection
cs.CV
Regular maintenance of all the assets is pivotal for proper functioning of railway. Manual maintenance can be very cumbersome and leave room for errors. Track anomalies like vegetation overgrowth, sun kinks affect the track construct and result in unequal load transfer, imbalanced lateral forces on tracks which causes ...
computer science
31,020
Road Segmentation in SAR Satellite Images with Deep Fully-Convolutional Neural Networks
cs.CV
Remote sensing is extensively used in cartography. As transportation networks expand, extracting roads automatically from satellite images is crucial to keep maps up-to-date. Synthetic Aperture Radar (SAR) satellites can provide high resolution topographical maps. However roads are difficult to identify in SAR images a...
computer science
31,021
Mixed-Resolution Image Representation and Compression with Convolutional Neural Networks
cs.CV
In this paper, we propose a end-to-end mixed-resolution image compression framework with convolutional neural networks. Firstly, given one input image, feature description neural network (FDNN) is used to generate a new representation of this image, so that this representation can be more efficiently compressed by stan...
computer science
31,022
Exploring Spatial Context for 3D Semantic Segmentation of Point Clouds
cs.CV
Deep learning approaches have made tremendous progress in the field of semantic segmentation over the past few years. However, most current approaches operate in the 2D image space. Direct semantic segmentation of unstructured 3D point clouds is still an open research problem. The recently proposed PointNet architectur...
computer science
31,023
3D non-rigid registration using color: Color Coherent Point Drift
cs.CV
Research into object deformations using computer vision techniques has been under intense study in recent years. A widely used technique is 3D non-rigid registration to estimate the transformation between two instances of a deforming structure. Despite many previous developments on this topic, it remains a challenging ...
computer science
31,024
Background subtraction using the factored 3-way restricted Boltzmann machines
cs.CV
In this paper, we proposed a method for reconstructing the 3D model based on continuous sensory input. The robot can draw on extremely large data from the real world using various sensors. However, the sensory inputs are usually too noisy and high-dimensional data. It is very difficult and time consuming for robot to p...
computer science
31,025
Adviser Networks: Learning What Question to Ask for Human-In-The-Loop Viewpoint Estimation
cs.CV
Humans have an unparalleled visual intelligence and can overcome visual ambiguities that machines currently cannot. Recent works have shown that incorporating guidance from humans during inference for monocular viewpoint-estimation can help overcome difficult cases in which the computer-alone would have otherwise faile...
computer science
31,026
Compressive Light Field Reconstructions using Deep Learning
cs.CV
Light field imaging is limited in its computational processing demands of high sampling for both spatial and angular dimensions. Single-shot light field cameras sacrifice spatial resolution to sample angular viewpoints, typically by multiplexing incoming rays onto a 2D sensor array. While this resolution can be recover...
computer science
31,027
Toward Marker-free 3D Pose Estimation in Lifting: A Deep Multi-view Solution
cs.CV
Lifting is a common manual material handling task performed in the workplaces. It is considered as one of the main risk factors for Work-related Musculoskeletal Disorders. To improve work place safety, it is necessary to assess musculoskeletal and biomechanical risk exposures associated with these tasks, which requires...
computer science
31,028
Scale-recurrent Network for Deep Image Deblurring
cs.CV
In single image deblurring, the "coarse-to-fine" scheme, i.e. gradually restoring the sharp image on different resolutions in a pyramid, is very successful in both traditional optimization-based methods and recent neural-network-based approaches. In this paper, we investigate this strategy and propose a Scale-recurrent...
computer science
31,029
Brute-Force Facial Landmark Analysis With A 140,000-Way Classifier
cs.CV
We propose a simple approach to visual alignment, focusing on the illustrative task of facial landmark estimation. While most prior work treats this as a regression problem, we instead formulate it as a discrete $K$-way classification task, where a classifier is trained to return one of $K$ discrete alignments. One cru...
computer science
31,030
Rollable Latent Space for SAR Target Recognition of Un-seen Views
cs.CV
This paper proposes rollable latent space (RLS) for synthetic aperture radar (SAR) target recognition of un-seen views. Scarce labeled data and limited viewing direction are critical issues in SAR target recognition.The RLS is a designed space in which rolling of latent features corresponds to 3D rotation of an object....
computer science
31,031
Geometry-Contrastive Generative Adversarial Network for Facial Expression Synthesis
cs.CV
In this paper, we propose a geometry-contrastive generative adversarial network GC-GAN for generating facial expression images conditioned on geometry information. Specifically, given an input face and a target expression designated by a set of facial landmarks, an identity-preserving face can be generated guided by th...
computer science
31,032
Fast Piecewise-Affine Motion Estimation Without Segmentation
cs.CV
Current algorithmic approaches for piecewise affine motion estimation are based on alternating motion segmentation and estimation. We propose a new method to estimate piecewise affine motion fields directly without intermediate segmentation. To this end, we reformulate the problem by imposing piecewise constancy of the...
computer science
31,033
Every Smile is Unique: Landmark-Guided Diverse Smile Generation
cs.CV
Each smile is unique: one person surely smiles in different ways (e.g., closing/opening the eyes or mouth). Given one input image of a neutral face, can we generate multiple smile videos with distinctive characteristics? To tackle this one-to-many video generation problem, we propose a novel deep learning architecture ...
computer science
31,034
Learning Image Representations by Completing Damaged Jigsaw Puzzles
cs.CV
In this paper, we explore methods of complicating self-supervised tasks for representation learning. That is, we do severe damage to data and encourage a network to recover them. First, we complicate each of three powerful self-supervised task candidates: jigsaw puzzle, inpainting, and colorization. In addition, we int...
computer science
31,035
Attribute-Guided Network for Cross-Modal Zero-Shot Hashing
cs.CV
Zero-Shot Hashing aims at learning a hashing model that is trained only by instances from seen categories but can generate well to those of unseen categories. Typically, it is achieved by utilizing a semantic embedding space to transfer knowledge from seen domain to unseen domain. Existing efforts mainly focus on singl...
computer science
31,036
Multimodal Image Captioning for Marketing Analysis
cs.CV
Automatically captioning images with natural language sentences is an important research topic. State of the art models are able to produce human-like sentences. These models typically describe the depicted scene as a whole and do not target specific objects of interest or emotional relationships between these objects ...
computer science
31,037
Orthogonally Regularized Deep Networks For Image Super-resolution
cs.CV
Deep learning methods, in particular trained Convolutional Neural Networks (CNNs) have recently been shown to produce compelling state-of-the-art results for single image Super-Resolution (SR). Invariably, a CNN is learned to map the low resolution (LR) image to its corresponding high resolution (HR) version in the spa...
computer science
31,038
Multi-Temporal Land Cover Classification with Sequential Recurrent Encoders
cs.CV
Earth observation (EO) sensors deliver data with daily or weekly temporal resolution. Most land use and land cover (LULC) approaches, however, expect cloud-free and mono-temporal observations. The increasing temporal capabilities of today's sensors enables the use of temporal, along with spectral and spatial features. ...
computer science
31,039
A Log-Euclidean and Total Variation based Variational Framework for Computational Sonography
cs.CV
We propose a spatial compounding technique and variational framework to improve 3D ultrasound image quality by compositing multiple ultrasound volumes acquired from different probe orientations. In the composite volume, instead of intensity values, we estimate a tensor at every voxel. The resultant tensor image encapsu...
computer science
31,040
Structural Recurrent Neural Network (SRNN) for Group Activity Analysis
cs.CV
A group of persons can be analyzed at various semantic levels such as individual actions, their interactions, and the activity of the entire group. In this paper, we propose a structural recurrent neural network (SRNN) that uses a series of interconnected RNNs to jointly capture the actions of individuals, their intera...
computer science
31,041
Face Detection Using Improved Faster RCNN
cs.CV
Faster RCNN has achieved great success for generic object detection including PASCAL object detection and MS COCO object detection. In this report, we propose a detailed designed Faster RCNN method named FDNet1.0 for face detection. Several techniques were employed including multi-scale training, multi-scale testing, l...
computer science
31,042
A Systematic Analysis for State-of-the-Art 3D Lung Nodule Proposals Generation
cs.CV
Lung nodule proposals generation is the primary step of lung nodule detection and has received much attention in recent years . In this paper, we first construct a model of 3-dimension Convolutional Neural Network (3D CNN) to generate lung nodule proposals, which can achieve the state-of-the-art performance. Then, we a...
computer science
31,043
Applications of a Graph Theoretic Based Clustering Framework in Computer Vision and Pattern Recognition
cs.CV
Recently, several clustering algorithms have been used to solve variety of problems from different discipline. This dissertation aims to address different challenging tasks in computer vision and pattern recognition by casting the problems as a clustering problem. We proposed novel approaches to solve multi-target trac...
computer science
31,044
2D-Densely Connected Convolution Neural Networks for automatic Liver and Tumor Segmentation
cs.CV
In this paper we propose a fully automatic 2-stage cascaded approach for segmentation of liver and its tumors in CT (Computed Tomography) images using densely connected fully convolutional neural network (DenseNet). We independently train liver and tumor segmentation models and cascade them for a combined segmentation ...
computer science
31,045
Enhanced Image Classification With Data Augmentation Using Position Coordinates
cs.CV
In this paper we propose the use of image pixel position coordinate system to improve image classification accuracy in various applications. Specifically, we hypothesize that the use of pixel coordinates will lead to (a) Resolution invariant performance. Here, by resolution we mean the spacing between the pixels rather...
computer science
31,046
Smile detection in the wild based on transfer learning
cs.CV
Smile detection from unconstrained facial images is a specialized and challenging problem. As one of the most informative expressions, smiles convey basic underlying emotions, such as happiness and satisfaction, which lead to multiple applications, e.g., human behavior analysis and interactive controlling. Compared to ...
computer science
31,047
A High-Performance HOG Extractor on FPGA
cs.CV
Pedestrian detection is one of the key problems in emerging self-driving car industry. And HOG algorithm has proven to provide good accuracy for pedestrian detection. There are plenty of research works have been done in accelerating HOG algorithm on FPGA because of its low-power and high-throughput characteristics. In ...
computer science
31,048
SocialML: machine learning for social media video creators
cs.CV
In the recent years, social media have become one of the main places where creative content is being published and consumed by billions of users. Contrary to traditional media, social media allow the publishers to receive almost instantaneous feedback regarding their creative work at an unprecedented scale. This is a p...
computer science
31,049
Automatic Pavement Crack Detection Based on Structured Prediction with the Convolutional Neural Network
cs.CV
Automated pavement crack detection is a challenging task that has been researched for decades due to the complicated pavement conditions in real world. In this paper, a supervised method based on deep learning is proposed, which has the capability of dealing with different pavement conditions. Specifically, a convoluti...
computer science
31,050
Describing Semantic Representations of Brain Activity Evoked by Visual Stimuli
cs.CV
Quantitative modeling of human brain activity based on language representations has been actively studied in systems neuroscience. However, previous studies examined word-level representation, and little is known about whether we could recover structured sentences from brain activity. This study attempts to generate na...
computer science
31,051
A Multiresolution Deep Learning Framework for Automated Annotation of Reflectance Confocal Microscopy Images
cs.CV
Morphological tissue patterns in RCM images are critical in diagnosis of melanocytic lesions. We present a multiresolution deep learning framework that can automatically annotate RCM images for these diagnostic patterns with high sensitivity and specificity
computer science
31,052
Feature Based Framework to Detect Diseases, Tumor, and Bleeding in Wireless Capsule Endoscopy
cs.CV
Studying animal locomotion improves our understanding of motor control and aids in the treatment of motor impairment. Mice are a premier model of human disease and are the model system of choice for much of basic neuroscience. High frame rates (250 Hz) are needed to quantify the kinematics of these running rodents. Man...
computer science
31,053
A comprehensive review of 3D point cloud descriptors
cs.CV
The introduction of inexpensive 3D data acquisition devices has promisingly facilitated the wide availability and popularity of 3D point cloud, which attracts more attention on the effective extraction of novel 3D point cloud descriptors for accurate and efficient of 3D computer vision tasks. However, how to de- velop ...
computer science
31,054
Self-Supervised Video Hashing with Hierarchical Binary Auto-encoder
cs.CV
Existing video hash functions are built on three isolated stages: frame pooling, relaxed learning, and binarization, which have not adequately explored the temporal order of video frames in a joint binary optimization model, resulting in severe information loss. In this paper, we propose a novel unsupervised video hash...
computer science
31,055
MiMatrix: A Massively Distributed Deep Learning Framework on a Petascale High-density Heterogeneous Cluster
cs.CV
In this paper, we present a co-designed petascale high-density GPU cluster to expedite distributed deep learning training with synchronous Stochastic Gradient Descent~(SSGD). This architecture of our heterogeneous cluster is inspired by Harvard architecture. Regarding to different roles in the system, nodes are configu...
computer science
31,056
Outlier Detection for Robust Multi-dimensional Scaling
cs.CV
Multi-dimensional scaling (MDS) plays a central role in data-exploration, dimensionality reduction and visualization. State-of-the-art MDS algorithms are not robust to outliers, yielding significant errors in the embedding even when only a handful of outliers are present. In this paper, we introduce a technique to dete...
computer science
31,057
SlideRunner - A Tool for Massive Cell Annotations in Whole Slide Images
cs.CV
Large-scale image data such as digital whole-slide histology images pose a challenging task at annotation software solutions. Today, a number of good solutions with varying scopes exist. For cell annotation, however, we find that many do not match the prerequisites for fast annotations. Especially in the field of mitos...
computer science
31,058
ShakeDrop regularization
cs.CV
This paper proposes a powerful regularization method named ShakeDrop regularization. ShakeDrop is inspired by Shake-Shake regularization that decreases error rates by disturbing learning. While Shake-Shake can be applied to only ResNeXt which has multiple branches, ShakeDrop can be applied to not only ResNeXt but also ...
computer science
31,059
Super-resolution of spatiotemporal event-stream image captured by the asynchronous temporal contrast vision sensor
cs.CV
Super-resolution (SR) is a useful technology to generate a high-resolution (HR) visual output from the low-resolution (LR) visual inputs overcoming the physical limitations of the cameras. However, SR has not been applied to enhance the resolution of spatiotemporal event-stream images captured by the frame-free dynamic...
computer science
31,060
Revisiting the Inverted Indices for Billion-Scale Approximate Nearest Neighbors
cs.CV
This work addresses the problem of billion-scale nearest neighbor search. The state-of-the-art retrieval systems for billion-scale databases are currently based on the inverted multi-index, the recently proposed generalization of the inverted index structure. The multi-index provides a very fine-grained partition of th...
computer science
31,061
Pixel-Level Alignment of Facial Images for High Accuracy Recognition Using Ensemble of Patches
cs.CV
The variation of pose, illumination and expression makes face recognition still a challenging problem. As a pre-processing in holistic approaches, faces are usually aligned by eyes. The proposed method tries to perform a pixel alignment rather than eye-alignment by mapping the geometry of faces to a reference face whil...
computer science
31,062
SCH-GAN: Semi-supervised Cross-modal Hashing by Generative Adversarial Network
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. Supervised cross-modal hashing methods have achieved considerable progress by incorporating semantic side information. However, they mainly have two limit...
computer science
31,063
Fair comparison of skin detection approaches on publicly available datasets
cs.CV
Skin detection is the process of discriminating skin and non-skin regions in a digital image and it is widely used in several applications ranging from hand gesture analysis to tracking body parts and face detection. Skin detection is a challenging problem which has drawn extensive attention from the research community...
computer science
31,064
Bitewing Radiography Semantic Segmentation Base on Conditional Generative Adversarial Nets
cs.CV
Currently, Segmentation of bitewing radiograpy images is a very challenging task. The focus of the study is to segment it into caries, enamel, dentin, pulp, crowns, restoration and root canal treatments. The main method of semantic segmentation of bitewing radiograpy images at this stage is the U-shaped deep convolutio...
computer science
31,065
Unsupervised Typography Transfer
cs.CV
Traditional methods in Chinese typography synthesis view characters as an assembly of radicals and strokes, but they rely on manual definition of the key points, which is still time-costing. Some recent work on computer vision proposes a brand new approach: to treat every Chinese character as an independent and insepar...
computer science
31,066
Generating Triples with Adversarial Networks for Scene Graph Construction
cs.CV
Driven by successes in deep learning, computer vision research has begun to move beyond object detection and image classification to more sophisticated tasks like image captioning or visual question answering. Motivating such endeavors is the desire for models to capture not only objects present in an image, but more f...
computer science
31,067
Digital Watermarking for Deep Neural Networks
cs.CV
Although deep neural networks have made tremendous progress in the area of multimedia representation, training neural models requires a large amount of data and time. It is well-known that utilizing trained models as initial weights often achieves lower training error than neural networks that are not pre-trained. A fi...
computer science
31,068
An Unsupervised Learning Model for Deformable Medical Image Registration
cs.CV
We present an efficient learning-based algorithm for deformable, pairwise 3D medical image registration. Current registration methods optimize an energy function independently for each pair of images, which can be time-consuming for large data. We define registration as a parametric function, and optimize its parameter...
computer science
31,069
Deep Versus Wide Convolutional Neural Networks for Object Recognition on Neuromorphic System
cs.CV
In the last decade, special purpose computing systems, such as Neuromorphic computing, have become very popular in the field of computer vision and machine learning for classification tasks. In 2015, IBM's released the TrueNorth Neuromorphic system, kick-starting a new era of Neuromorphic computing. Alternatively, Deep...
computer science
31,070
Encoder-Decoder with Atrous Separable Convolution for Semantic Image Segmentation
cs.CV
Spatial pyramid pooling module or encode-decoder structure are used in deep neural networks for semantic segmentation task. The former networks are able to encode multi-scale contextual information by probing the incoming features with filters or pooling operations at multiple rates and multiple effective fields-of-vie...
computer science
31,071
Effective Quantization Approaches for Recurrent Neural Networks
cs.CV
Deep learning, and in particular Recurrent Neural Networks (RNN) have shown superior accuracy in a large variety of tasks including machine translation, language understanding, and movie frame generation. However, these deep learning approaches are very expensive in terms of computation. In most cases, Graphic Processi...
computer science
31,072
Going Deeper in Spiking Neural Networks: VGG and Residual Architectures
cs.CV
Over the past few years, Spiking Neural Networks (SNNs) have become popular as a possible pathway to enable low-power event-driven neuromorphic hardware. However, their application in machine learning have largely been limited to very shallow neural network architectures for simple problems. In this paper, we propose a...
computer science
31,073
Spatially adaptive image compression using a tiled deep network
cs.CV
Deep neural networks represent a powerful class of function approximators that can learn to compress and reconstruct images. Existing image compression algorithms based on neural networks learn quantized representations with a constant spatial bit rate across each image. While entropy coding introduces some spatial var...
computer science
31,074
SCK: A sparse coding based key-point detector
cs.CV
All current popular hand-crafted key-point detectors such as Harris corner, MSER, SIFT, SURF... rely on some specific pre-designed structures for the detection of corners, blobs, or junctions in an image. In this paper, a novel sparse coding based key-point detector which requires no particular pre-designed structures ...
computer science
31,075
A Semi-Supervised Two-Stage Approach to Learning from Noisy Labels
cs.CV
The recent success of deep neural networks is powered in part by large-scale well-labeled training data. However, it is a daunting task to laboriously annotate an ImageNet-like dateset. On the contrary, it is fairly convenient, fast, and cheap to collect training images from the Web along with their noisy labels. This ...
computer science
31,076
Driver Gaze Zone Estimation using Convolutional Neural Networks: A General Framework and Ablative Analysis
cs.CV
Driver gaze has been shown to be an excellent surrogate for driver attention in intelligent vehicles. With the recent surge of highly autonomous vehicles, driver gaze can be useful for determining the handoff time to a human driver. While there has been significant improvement in personalized driver gaze zone estimatio...
computer science
31,077
Deep Image Super Resolution via Natural Image Priors
cs.CV
Single image super-resolution (SR) via deep learning has recently gained significant attention in the literature. Convolutional neural networks (CNNs) are typically learned to represent the mapping between low-resolution (LR) and high-resolution (HR) images/patches with the help of training examples. Most existing deep...
computer science
31,078
From Hashing to CNNs: Training BinaryWeight Networks via Hashing
cs.CV
Deep convolutional neural networks (CNNs) have shown appealing performance on various computer vision tasks in recent years. This motivates people to deploy CNNs to realworld applications. However, most of state-of-art CNNs require large memory and computational resources, which hinders the deployment on mobile devices...
computer science
31,079
Saliency-Enhanced Robust Visual Tracking
cs.CV
Discrete correlation filter (DCF) based trackers have shown considerable success in visual object tracking. These trackers often make use of low to mid level features such as histogram of gradients (HoG) and mid-layer activations from convolution neural networks (CNNs). We argue that including semantically higher level...
computer science
31,080
Peekaboo - Where are the Objects? Structure Adjusting Superpixels
cs.CV
This paper addresses the search for a fast and meaningful image segmentation in the context of $k$-means clustering. The proposed method builds on a widely-used local version of Lloyd's algorithm, called Simple Linear Iterative Clustering (SLIC). We propose an algorithm which extends SLIC to dynamically adjust the loca...
computer science
31,081
Archetypal Analysis for Sparse Representation-based Hyperspectral Sub-pixel Quantification
cs.CV
The estimation of land cover fractions from remote sensing images is a frequently used indicator of the environmental quality. This paper focuses on the quantification of land cover fractions in an urban area of Berlin, Germany, using simulated hyperspectral EnMAP data with a spatial resolution of 30m$\times$30m. We us...
computer science
31,082
From Selective Deep Convolutional Features to Compact Binary Representations for Image Retrieval
cs.CV
Convolutional Neural Network (CNN) is a very powerful approach to extract discriminative local descriptors for effective image search. Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors. Taking a different approach, in this paper, we propose a novel framework to achi...
computer science
31,083
Deep Reinforcement Learning for Image Hashing
cs.CV
Deep hashing methods have received much attention recently, which achieve promising results by taking advantage of the strong representation power of deep networks. However, most existing deep hashing methods learn a whole set of hashing functions independently and directly, while ignore the correlation between differe...
computer science
31,084
A Deep Unsupervised Learning Approach Toward MTBI Identification Using Diffusion MRI
cs.CV
Mild traumatic brain injury (mTBI) is a growing public health problem with an estimated incidence of one million people annually in US. Neurocognitive tests have been used to both assess the patient condition and to monitor the patient progress. This work aims to directly use diffusion MR images taken shortly after inj...
computer science
31,085
Rotate your Networks: Better Weight Consolidation and Less Catastrophic Forgetting
cs.CV
In this paper we propose an approach to avoiding catastrophic forgetting in sequential task learning scenarios. Our technique is based on a network reparameterization that approximately diagonalizes the Fisher Information Matrix of the network parameters. This reparameterization takes the form of a factorized rotation ...
computer science
31,086
TSViz: Demystification of Deep Learning Models for Time-Series Analysis
cs.CV
This paper presents a novel framework for demystification of convolutional deep learning models for time series analysis. This is a step towards making informed/explainable decisions in the domain of time series, powered by deep learning. There have been numerous efforts to increase the interpretability of image-centri...
computer science
31,087
Practical Issues of Action-conditioned Next Image Prediction
cs.CV
The problem of action-conditioned image prediction is to predict the expected next frame given the current camera frame the robot observes and an action selected by the robot. We provide the first comparison of two recent popular models, especially for image prediction on cars. Our major finding is that action tiling e...
computer science
31,088
Texture Segmentation Based Video Compression Using Convolutional Neural Networks
cs.CV
There has been a growing interest in using different approaches to improve the coding efficiency of modern video codec in recent years as demand for web-based video consumption increases. In this paper, we propose a model-based approach that uses texture analysis/synthesis to reconstruct blocks in texture regions of a ...
computer science
31,089
Hole Filling with Multiple Reference Views in DIBR View Synthesis
cs.CV
Depth-image-based rendering (DIBR) oriented view synthesis has been widely employed in the current depth-based 3D video systems by synthesizing a virtual view from an arbitrary viewpoint. However, holes may appear in the synthesized view due to disocclusion, thus significantly degrading the quality. Consequently, effor...
computer science
31,090
Automatic segmenting teeth in X-ray images: Trends, a novel data set, benchmarking and future perspectives
cs.CV
This review presents an in-depth study of the literature on segmentation methods applied in dental imaging. Ten segmentation methods were studied and categorized according to the type of the segmentation method (region-based, threshold-based, cluster-based, boundary-based or watershed-based), type of X-ray images used ...
computer science
31,091
Tracking Noisy Targets: A Review of Recent Object Tracking Approaches
cs.CV
Visual object tracking is an important computer vision problem with numerous real-world applications including human-computer interaction, autonomous vehicles, robotics, motion-based recognition, video indexing, surveillance and security. In this paper, we aim to extensively review the latest trends and advances in the...
computer science
31,092
Boosting Image Forgery Detection using Resampling Features and Copy-move analysis
cs.CV
Realistic image forgeries involve a combination of splicing, resampling, cloning, region removal and other methods. While resampling detection algorithms are effective in detecting splicing and resampling, copy-move detection algorithms excel in detecting cloning and region removal. In this paper, we combine these comp...
computer science
31,093
Tracking all members of a honey bee colony over their lifetime
cs.CV
Computational approaches to the analysis of collective behavior in social insects increasingly rely on motion paths as an intermediate data layer from which one can infer individual behaviors or social interactions. Honey bees are a popular model for learning and memory. Previous experience has been shown to affect and...
computer science
31,094
Full-Frame Scene Coordinate Regression for Image-Based Localization
cs.CV
Image-based localization, or camera relocalization, is a fundamental problem in computer vision and robotics, and it refers to estimating camera pose from an image. Recent state-of-the-art approaches use learning based methods, such as Random Forests (RFs) and Convolutional Neural Networks (CNNs), to regress for each p...
computer science
31,095
RSDNet: Learning to Predict Remaining Surgery Duration from Laparoscopic Videos Without Manual Annotations
cs.CV
Objective: Accurate surgery duration estimation is necessary for optimal OR planning, which plays an important role for patient comfort and safety as well as resource optimization. It is however challenging to preoperatively predict surgery duration since it varies significantly depending on the patient condition, surg...
computer science
31,096
Piecewise Flat Embedding for Image Segmentation
cs.CV
We propose a new nonlinear embedding -- Piecewise Flat Embedding (PFE) -- for image segmentation. Based on the theory of sparse signal recovery, piecewise flat embedding attempts to recover a piecewise constant image representation with sparse region boundaries and sparse cluster value scattering. The resultant piecewi...
computer science
31,097
Multiple Target Tracking by Learning Feature Representation and Distance Metric Jointly
cs.CV
Designing a robust affinity model is the key issue in multiple target tracking (MTT). This paper proposes a novel affinity model by learning feature representation and distance metric jointly in a unified deep architecture. Specifically, we design a CNN network to obtain appearance cue tailored towards person Re-ID, an...
computer science
31,098
Triplet-based Deep Similarity Learning for Person Re-Identification
cs.CV
In recent years, person re-identification (re-id) catches great attention in both computer vision community and industry. In this paper, we propose a new framework for person re-identification with a triplet-based deep similarity learning using convolutional neural networks (CNNs). The network is trained with triplet i...
computer science
31,099
Video Event Recognition and Anomaly Detection by Combining Gaussian Process and Hierarchical Dirichlet Process Models
cs.CV
In this paper, we present an unsupervised learning framework for analyzing activities and interactions in surveillance videos. In our framework, three levels of video events are connected by Hierarchical Dirichlet Process (HDP) model: low-level visual features, simple atomic activities, and multi-agent interactions. At...
computer science
31,100
Unsupervised Deep Domain Adaptation for Pedestrian Detection
cs.CV
This paper addresses the problem of unsupervised domain adaptation on the task of pedestrian detection in crowded scenes. First, we utilize an iterative algorithm to iteratively select and auto-annotate positive pedestrian samples with high confidence as the training samples for the target domain. Meanwhile, we also re...
computer science
31,101
Temporally Object-based Video Co-Segmentation
cs.CV
In this paper, we propose an unsupervised video object co-segmentation framework based on the primary object proposals to extract the common foreground object(s) from a given video set. In addition to the objectness attributes and motion coherence our framework exploits the temporal consistency of the object-like regio...
computer science