Unnamed: 0
int64
0
41k
title
stringlengths
4
274
category
stringlengths
5
18
summary
stringlengths
22
3.66k
theme
stringclasses
8 values
26,502
Compressive Holographic Video
cs.CV
Compressed sensing has been discussed separately in spatial and temporal domains. Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths from a single 2D image. Coded exposure is a temporal compressed sensing method for high speed video acquisition. In this ...
computer science
26,503
Icon: An Interactive Approach to Train Deep Neural Networks for Segmentation of Neuronal Structures
cs.CV
We present an interactive approach to train a deep neural network pixel classifier for the segmentation of neuronal structures. An interactive training scheme reduces the extremely tedious manual annotation task that is typically required for deep networks to perform well on image segmentation problems. Our proposed me...
computer science
26,504
Recent advances in content based video copy detection
cs.CV
With the immense number of videos being uploaded to the video sharing sites, issue of copyright infringement arises with uploading of illicit copies or transformed versions of original video. Thus safeguarding copyright of digital media has become matter of concern. To address this concern, it is obliged to have a vide...
computer science
26,505
Towards automatic pulmonary nodule management in lung cancer screening with deep learning
cs.CV
The introduction of lung cancer screening programs will produce an unprecedented amount of chest CT scans in the near future, which radiologists will have to read in order to decide on a patient follow-up strategy. According to the current guidelines, the workup of screen-detected nodules strongly relies on nodule size...
computer science
26,506
Judging a Book By its Cover
cs.CV
Book covers communicate information to potential readers, but can that same information be learned by computers? We propose using a deep Convolutional Neural Network (CNN) to predict the genre of a book based on the visual clues provided by its cover. The purpose of this research is to investigate whether relationships...
computer science
26,507
Learnable Visual Markers
cs.CV
We propose a new approach to designing visual markers (analogous to QR-codes, markers for augmented reality, and robotic fiducial tags) based on the advances in deep generative networks. In our approach, the markers are obtained as color images synthesized by a deep network from input bit strings, whereas another deep ...
computer science
26,508
The TUM LapChole dataset for the M2CAI 2016 workflow challenge
cs.CV
In this technical report we present our collected dataset of laparoscopic cholecystectomies (LapChole). Laparoscopic videos of a total of 20 surgeries were recorded and annotated with surgical phase labels, of which 15 were randomly pre-determined as training data, while the remaining 5 videos are selected as test data...
computer science
26,509
Real-time Online Action Detection Forests using Spatio-temporal Contexts
cs.CV
Online action detection (OAD) is challenging since 1) robust yet computationally expensive features cannot be straightforwardly used due to the real-time processing requirements and 2) the localization and classification of actions have to be performed even before they are fully observed. We propose a new random forest...
computer science
26,510
Learning Adaptive Parameter Tuning for Image Processing
cs.CV
The non-stationary nature of image characteristics calls for adaptive processing, based on the local image content. We propose a simple and flexible method to learn local tuning of parameters in adaptive image processing: we extract simple local features from an image and learn the relation between these features and t...
computer science
26,511
Selective De-noising of Sparse-Coloured Images
cs.CV
Since time immemorial, noise has been a constant source of disturbance to the various entities known to mankind. Noise models of different kinds have been developed to study noise in more detailed fashion over the years. Image processing, particularly, has extensively implemented several algorithms to reduce noise in p...
computer science
26,512
A MAP-MRF filter for phase-sensitive coil combination in autocalibrating partially parallel susceptibility weighted MRI
cs.CV
A statistical approach for combination of channel phases is developed for optimizing the Contrast-to-Noise Ratio (CNR) in Susceptibility Weighted Images (SWI) acquired using autocalibrating partially parallel techniques. The unwrapped phase images of each coil are filtered using local random field based probabilistic w...
computer science
26,513
Multi-Camera Occlusion and Sudden-Appearance-Change Detection Using Hidden Markovian Chains
cs.CV
This paper was originally submitted to Xinova as a response to a Request for Invention (RFI) on new event monitoring methods. In this paper, a new object tracking algorithm using multiple cameras for surveillance applications is proposed. The proposed system can detect sudden-appearance-changes and occlusions using a h...
computer science
26,514
Diversity Promoting Online Sampling for Streaming Video Summarization
cs.CV
Many applications benefit from sampling algorithms where a small number of well chosen samples are used to generalize different properties of a large dataset. In this paper, we use diverse sampling for streaming video summarization. Several emerging applications support streaming video, but existing summarization algor...
computer science
26,515
Compressed Learning: A Deep Neural Network Approach
cs.CV
Compressed Learning (CL) is a joint signal processing and machine learning framework for inference from a signal, using a small number of measurements obtained by linear projections of the signal. In this paper we present an end-to-end deep learning approach for CL, in which a network composed of fully-connected layers...
computer science
26,516
Accurate Deep Representation Quantization with Gradient Snapping Layer for Similarity Search
cs.CV
Recent advance of large scale similarity search involves using deeply learned representations to improve the search accuracy and use vector quantization methods to increase the search speed. However, how to learn deep representations that strongly preserve similarities between data pairs and can be accurately quantized...
computer science
26,517
Visual Tracking via Boolean Map Representations
cs.CV
In this paper, we present a simple yet effective Boolean map based representation that exploits connectivity cues for visual tracking. We describe a target object with histogram of oriented gradients and raw color features, of which each one is characterized by a set of Boolean maps generated by uniformly thresholding ...
computer science
26,518
Real-Time Image Distortion Correction: Analysis and Evaluation of FPGA-Compatible Algorithms
cs.CV
Image distortion correction is a critical pre-processing step for a variety of computer vision and image processing algorithms. Standard real-time software implementations are generally not suited for direct hardware porting, so appropriated versions need to be designed in order to obtain implementations deployable on ...
computer science
26,519
A deep convolutional neural network using directional wavelets for low-dose X-ray CT reconstruction
cs.CV
Due to the potential risk of inducing cancers, radiation dose of X-ray CT should be reduced for routine patient scanning. However, in low-dose X-ray CT, severe artifacts usually occur due to photon starvation, beamhardening, etc, which decrease the reliability of diagnosis. Thus, high quality reconstruction from low-do...
computer science
26,520
A New Distance Measure for Non-Identical Data with Application to Image Classification
cs.CV
Distance measures are part and parcel of many computer vision algorithms. The underlying assumption in all existing distance measures is that feature elements are independent and identically distributed. However, in real-world settings, data generally originate from heterogeneous sources even if they do possess a commo...
computer science
26,521
Robust Gait Recognition by Integrating Inertial and RGBD Sensors
cs.CV
Gait has been considered as a promising and unique biometric for person identification. Traditionally, gait data are collected using either color sensors, such as a CCD camera, depth sensors, such as a Microsoft Kinect, or inertial sensors, such as an accelerometer. However, a single type of sensors may only capture pa...
computer science
26,522
A Detailed Rubric for Motion Segmentation
cs.CV
Motion segmentation is currently an active area of research in computer Vision. The task of comparing different methods of motion segmentation is complicated by the fact that researchers may use subtly different definitions of the problem. Questions such as "Which objects are moving?", "What is background?", and "How c...
computer science
26,523
Bi-modal First Impressions Recognition using Temporally Ordered Deep Audio and Stochastic Visual Features
cs.CV
We propose a novel approach for First Impressions Recognition in terms of the Big Five personality-traits from short videos. The Big Five personality traits is a model to describe human personality using five broad categories: Extraversion, Agreeableness, Conscientiousness, Neuroticism and Openness. We train two bi-mod...
computer science
26,524
A Benchmark Dataset and Saliency-guided Stacked Autoencoders for Video-based Salient Object Detection
cs.CV
Image-based salient object detection (SOD) has been extensively studied in the past decades. However, video-based SOD is much less explored since there lack large-scale video datasets within which salient objects are unambiguously defined and annotated. Toward this end, this paper proposes a video-based SOD dataset tha...
computer science
26,525
Deep fusion of visual signatures for client-server facial analysis
cs.CV
Facial analysis is a key technology for enabling human-machine interaction. In this context, we present a client-server framework, where a client transmits the signature of a face to be analyzed to the server, and, in return, the server sends back various information describing the face e.g. is the person male or femal...
computer science
26,526
Best-Buddies Tracking
cs.CV
Best-Buddies Tracking (BBT) applies the Best-Buddies Similarity measure (BBS) to the problem of model-free online tracking. BBS was introduced as a similarity measure between two point sets and was shown to be very effective for template matching. Originally, BBS was designed to work with point sets of equal size, and ...
computer science
26,527
Sliding Dictionary Based Sparse Representation For Action Recognition
cs.CV
The task of action recognition has been in the forefront of research, given its applications in gaming, surveillance and health care. In this work, we propose a simple, yet very effective approach which works seamlessly for both offline and online action recognition using the skeletal joints. We construct a sliding dic...
computer science
26,528
Dictionary Integration using 3D Morphable Face Models for Pose-invariant Collaborative-representation-based Classification
cs.CV
The paper presents a dictionary integration algorithm using 3D morphable face models (3DMM) for pose-invariant collaborative-representation-based face classification. To this end, we first fit a 3DMM to the 2D face images of a dictionary to reconstruct the 3D shape and texture of each image. The 3D faces are used to re...
computer science
26,529
Combining Multiple Cues for Visual Madlibs Question Answering
cs.CV
This paper presents an approach for answering fill-in-the-blank multiple choice questions from the Visual Madlibs dataset. Instead of generic and commonly used representations trained on the ImageNet classification task, our approach employs a combination of networks trained for specialized tasks such as scene recognit...
computer science
26,530
Flood-Filling Networks
cs.CV
State-of-the-art image segmentation algorithms generally consist of at least two successive and distinct computations: a boundary detection process that uses local image information to classify image locations as boundaries between objects, followed by a pixel grouping step such as watershed or connected components tha...
computer science
26,531
CRF-CNN: Modeling Structured Information in Human Pose Estimation
cs.CV
Deep convolutional neural networks (CNN) have achieved great success. On the other hand, modeling structural information has been proved critical in many vision problems. It is of great interest to integrate them effectively. In a classical neural network, there is no message passing between neurons in the same layer. ...
computer science
26,532
Dual Attention Networks for Multimodal Reasoning and Matching
cs.CV
We propose Dual Attention Networks (DANs) which jointly leverage visual and textual attention mechanisms to capture fine-grained interplay between vision and language. DANs attend to specific regions in images and words in text through multiple steps and gather essential information from both modalities. Based on this ...
computer science
26,533
Wearable Vision Detection of Environmental Fall Risks using Convolutional Neural Networks
cs.CV
In this paper, a method to detect environmental hazards related to a fall risk using a mobile vision system is proposed. First-person perspective videos are proposed to provide objective evidence on cause and circumstances of perturbed balance during activities of daily living, targeted to seniors. A classification pro...
computer science
26,534
Learning Deep Embeddings with Histogram Loss
cs.CV
We suggest a loss for learning deep embeddings. The new loss does not introduce parameters that need to be tuned and results in very good embeddings across a range of datasets and problems. The loss is computed by estimating two distribution of similarities for positive (matching) and negative (non-matching) sample pai...
computer science
26,535
Optical Flow Estimation using a Spatial Pyramid Network
cs.CV
We learn to compute optical flow by combining a classical spatial-pyramid formulation with deep learning. This estimates large motions in a coarse-to-fine approach by warping one image of a pair at each pyramid level by the current flow estimate and computing an update to the flow. Instead of the standard minimization ...
computer science
26,536
An All-In-One Convolutional Neural Network for Face Analysis
cs.CV
We present a multi-purpose algorithm for simultaneous face detection, face alignment, pose estimation, gender recognition, smile detection, age estimation and face recognition using a single deep convolutional neural network (CNN). The proposed method employs a multi-task learning framework that regularizes the shared ...
computer science
26,537
Rough Set Based Color Channel Selection
cs.CV
Color channel selection is essential for accurate segmentation of sky and clouds in images obtained from ground-based sky cameras. Most prior works in cloud segmentation use threshold based methods on color channels selected in an ad-hoc manner. In this letter, we propose the use of rough sets for color channel selecti...
computer science
26,538
Adaptive mixed norm optical flow estimation
cs.CV
The pel-recursive computation of 2-D optical flow has been extensively studied in computer vision to estimate motion from image sequences, but it still raises a wealth of issues, such as the treatment of outliers, motion discontinuities and occlusion. It relies on spatio-temporal brightness variations due to motion. Ou...
computer science
26,539
Integrating Atlas and Graph Cut Methods for LV Segmentation from Cardiac Cine MRI
cs.CV
Magnetic Resonance Imaging (MRI) has evolved as a clinical standard-of-care imaging modality for cardiac morphology, function assessment, and guidance of cardiac interventions. All these applications rely on accurate extraction of the myocardial tissue and blood pool from the imaging data. Here we propose a framework f...
computer science
26,540
Regularized Pel-Recursive Motion Estimation Using Generalized Cross-Validation and Spatial Adaptation
cs.CV
The computation of 2-D optical flow by means of regularized pel-recursive algorithms raises a host of issues, which include the treatment of outliers, motion discontinuities and occlusion among other problems. We propose a new approach which allows us to deal with these issues within a common framework. Our approach is...
computer science
26,541
Nonnegative Matrix Underapproximation for Robust Multiple Model Fitting
cs.CV
In this work, we introduce a highly efficient algorithm to address the nonnegative matrix underapproximation (NMU) problem, i.e., nonnegative matrix factorization (NMF) with an additional underapproximation constraint. NMU results are interesting as, compared to traditional NMF, they present additional sparsity and par...
computer science
26,542
STDP-based spiking deep convolutional neural networks for object recognition
cs.CV
Previous studies have shown that spike-timing-dependent plasticity (STDP) can be used in spiking neural networks (SNN) to extract visual features of low or intermediate complexity in an unsupervised manner. These studies, however, used relatively shallow architectures, and only one layer was trainable. Another line of ...
computer science
26,543
UMDFaces: An Annotated Face Dataset for Training Deep Networks
cs.CV
Recent progress in face detection (including keypoint detection), and recognition is mainly being driven by (i) deeper convolutional neural network architectures, and (ii) larger datasets. However, most of the large datasets are maintained by private companies and are not publicly available. The academic computer visio...
computer science
26,544
Efficient Branching Cascaded Regression for Face Alignment under Significant Head Rotation
cs.CV
Despite much interest in face alignment in recent years, the large majority of work has focused on near-frontal faces. Algorithms typically break down on profile faces, or are too slow for real-time applications. In this work we propose an efficient approach to face alignment that can handle 180 degrees of head rotatio...
computer science
26,545
What Is the Best Practice for CNNs Applied to Visual Instance Retrieval?
cs.CV
Previous work has shown that feature maps of deep convolutional neural networks (CNNs) can be interpreted as feature representation of a particular image region. Features aggregated from these feature maps have been exploited for image retrieval tasks and achieved state-of-the-art performances in recent years. The key ...
computer science
26,546
GPU-based Pedestrian Detection for Autonomous Driving
cs.CV
We propose a real-time pedestrian detection system for the embedded Nvidia Tegra X1 GPU-CPU hybrid platform. The pipeline is composed by the following state-of-the-art algorithms: Histogram of Local Binary Patterns (LBP) and Histograms of Oriented Gradients (HOG) features extracted from the input image; Pyramidal Slidi...
computer science
26,547
Boosting Image Captioning with Attributes
cs.CV
Automatically describing an image with a natural language has been an emerging challenge in both fields of computer vision and natural language processing. In this paper, we present Long Short-Term Memory with Attributes (LSTM-A) - a novel architecture that integrates attributes into the successful Convolutional Neural...
computer science
26,548
Validation of Tsallis Entropy In Inter-Modality Neuroimage Registration
cs.CV
Medical image registration plays an important role in determining topographic and morphological changes for functional diagnostic and therapeutic purposes. Manual alignment and semi-automated software still have been used; however they are subjective and make specialists spend precious time. Fully automated methods are...
computer science
26,549
Deep Label Distribution Learning with Label Ambiguity
cs.CV
Convolutional Neural Networks (ConvNets) have achieved excellent recognition performance in various visual recognition tasks. A large labeled training set is one of the most important factors for its success. However, it is difficult to collect sufficient training images with precise labels in some domains such as appa...
computer science
26,550
Deep Convolutional Neural Network Features and the Original Image
cs.CV
Face recognition algorithms based on deep convolutional neural networks (DCNNs) have made progress on the task of recognizing faces in unconstrained viewing conditions. These networks operate with compact feature-based face representations derived from learning a very large number of face images. While the learned feat...
computer science
26,551
The Shallow End: Empowering Shallower Deep-Convolutional Networks through Auxiliary Outputs
cs.CV
The depth is one of the key factors behind the great success of convolutional neural networks (CNNs), with the gradient vanishing issue having been largely addressed by various nets, e.g. ResNet. However, when the depth goes very deep, the supervision information from the loss function will vanish due to the long backp...
computer science
26,552
Action2Activity: Recognizing Complex Activities from Sensor Data
cs.CV
As compared to simple actions, activities are much more complex, but semantically consistent with a human's real life. Techniques for action recognition from sensor generated data are mature. However, there has been relatively little work on bridging the gap between actions and activities. To this end, this paper prese...
computer science
26,553
High-Resolution Semantic Labeling with Convolutional Neural Networks
cs.CV
Convolutional neural networks (CNNs) have received increasing attention over the last few years. They were initially conceived for image categorization, i.e., the problem of assigning a semantic label to an entire input image. In this paper we address the problem of dense semantic labeling, which consists in assignin...
computer science
26,554
Chinese/English mixed Character Segmentation as Semantic Segmentation
cs.CV
OCR character segmentation for multilingual printed documents is difficult due to the diversity of different linguistic characters. Previous approaches mainly focus on monolingual texts and are not suitable for multilingual-lingual cases. In this work, we particularly tackle the Chinese/English mixed case by reframing ...
computer science
26,555
A Fully Convolutional Neural Network based Structured Prediction Approach Towards the Retinal Vessel Segmentation
cs.CV
Automatic segmentation of retinal blood vessels from fundus images plays an important role in the computer aided diagnosis of retinal diseases. The task of blood vessel segmentation is challenging due to the extreme variations in morphology of the vessels against noisy background. In this paper, we formulate the segmen...
computer science
26,556
Texture and Color-based Image Retrieval Using the Local Extrema Features and Riemannian Distance
cs.CV
A novel efficient method for content-based image retrieval (CBIR) is developed in this paper using both texture and color features. Our motivation is to represent and characterize an input image by a set of local descriptors extracted at characteristic points (i.e. keypoints) within the image. Then, dissimilarity measu...
computer science
26,557
Spatiotemporal Residual Networks for Video Action Recognition
cs.CV
Two-stream Convolutional Networks (ConvNets) have shown strong performance for human action recognition in videos. Recently, Residual Networks (ResNets) have arisen as a new technique to train extremely deep architectures. In this paper, we introduce spatiotemporal ResNets as a combination of these two approaches. Our ...
computer science
26,558
Unsupervised Cross-Domain Image Generation
cs.CV
We study the problem of transferring a sample in one domain to an analog sample in another domain. Given two related domains, S and T, we would like to learn a generative function G that maps an input sample from S to the domain T, such that the output of a given function f, which accepts inputs in either domains, woul...
computer science
26,559
Meat adulteration detection through digital image analysis of histological cuts using LBP
cs.CV
Food fraud has been an area of great concern due to its risk to public health, reduction of food quality or nutritional value and for its economic consequences. For this reason, it's been object of regulation in many countries (e.g. [1], [2]). One type of food that has been frequently object of fraud through the additi...
computer science
26,560
Quantum spectral analysis: frequency in time, with applications to signal and image processing
cs.CV
A quantum time-dependent spectrum analysis, or simply, quantum spectral analysis (QSA) is presented in this work, and it is based on Schrodinger equation, which is a partial differential equation that describes how the quantum state of a non-relativistic physical system changes with time. In classic world is named freq...
computer science
26,561
Multiple Object Tracking with Kernelized Correlation Filters in Urban Mixed Traffic
cs.CV
Recently, the Kernelized Correlation Filters tracker (KCF) achieved competitive performance and robustness in visual object tracking. On the other hand, visual trackers are not typically used in multiple object tracking. In this paper, we investigate how a robust visual tracker like KCF can improve multiple object trac...
computer science
26,562
Action Recognition Based on Joint Trajectory Maps Using Convolutional Neural Networks
cs.CV
Recently, Convolutional Neural Networks (ConvNets) have shown promising performances in many computer vision tasks, especially image-based recognition. How to effectively use ConvNets for video-based recognition is still an open problem. In this paper, we propose a compact, effective yet simple method to encode spatio-...
computer science
26,563
The Loss Surface of Residual Networks: Ensembles and the Role of Batch Normalization
cs.CV
Deep Residual Networks present a premium in performance in comparison to conventional networks of the same depth and are trainable at extreme depths. It has recently been shown that Residual Networks behave like ensembles of relatively shallow networks. We show that these ensembles are dynamic: while initially the virt...
computer science
26,564
Estimating motion with principal component regression strategies
cs.CV
In this paper, two simple principal component regression methods for estimating the optical flow between frames of video sequences according to a pel-recursive manner are introduced. These are easy alternatives to dealing with mixtures of motion vectors in addition to the lack of prior information on spatial-temporal s...
computer science
26,565
Multispectral Deep Neural Networks for Pedestrian Detection
cs.CV
Multispectral pedestrian detection is essential for around-the-clock applications, e.g., surveillance and autonomous driving. We deeply analyze Faster R-CNN for multispectral pedestrian detection task and then model it into a convolutional network (ConvNet) fusion problem. Further, we discover that ConvNet-based pedest...
computer science
26,566
Robust Cardiac Motion Estimation using Ultrafast Ultrasound Data: A Low-Rank-Topology-Preserving Approach
cs.CV
Cardiac motion estimation is an important diagnostic tool to detect heart diseases and it has been explored with modalities such as MRI and conventional ultrasound (US) sequences. US cardiac motion estimation still presents challenges because of the complex motion patterns and the presence of noise. In this work, we pr...
computer science
26,567
A backward pass through a CNN using a generative model of its activations
cs.CV
Neural networks have shown to be a practical way of building a very complex mapping between a pre-specified input space and output space. For example, a convolutional neural network (CNN) mapping an image into one of a thousand object labels is approaching human performance in this particular task. However the mapping ...
computer science
26,568
Deep Convolutional Neural Network for 6-DOF Image Localization
cs.CV
We present an accurate and robust method for six degree of freedom image localization. There are two key-points of our method, 1. automatic immense photo synthesis and labeling from point cloud model and, 2. pose estimation with deep convolutional neural networks regression. Our model can directly regresses 6-DOF camer...
computer science
26,569
Generative Shape Models: Joint Text Recognition and Segmentation with Very Little Training Data
cs.CV
We demonstrate that a generative model for object shapes can achieve state of the art results on challenging scene text recognition tasks, and with orders of magnitude fewer training images than required for competing discriminative methods. In addition to transcribing text from challenging images, our method performs ...
computer science
26,570
Semi-Supervised Recognition of the Diploglossus Millepunctatus Lizard Species using Artificial Vision Algorithms
cs.CV
Animal biometrics is an important requirement for monitoring and conservation tasks. The classical animal biometrics risk the animals' integrity, are expensive for numerous animals, and depend on expert criterion. The non-invasive biometrics techniques offer alternatives to manage the aforementioned problems. In this p...
computer science
26,571
Node-Adapt, Path-Adapt and Tree-Adapt:Model-Transfer Domain Adaptation for Random Forest
cs.CV
Random Forest (RF) is a successful paradigm for learning classifiers due to its ability to learn from large feature spaces and seamlessly integrate multi-class classification, as well as the achieved accuracy and processing efficiency. However, as many other classifiers, RF requires domain adaptation (DA) provided that...
computer science
26,572
Optimal Multiple Surface Segmentation with Convex Priors in Irregularly Sampled Space
cs.CV
Optimal surface segmentation is widely used in numerous medical image segmentation applications. However, nodes in the graph based optimal surface segmentation method typically encode uniformly distributed orthogonal voxels of the volume. Thus the segmentation cannot attain an accuracy greater than a single unit voxel,...
computer science
26,573
Real Time Video Analysis using Smart Phone Camera for Stroboscopic Image
cs.CV
Motion capturing and there by segmentation of the motion of any moving object from a sequence of continuous images or a video is not an exceptional task in computer vision area. Smart-phone camera application is an added integration for the development of such tasks and it also provides for a smooth testing. A new appr...
computer science
26,574
Error concealment by means of motion refinement and regularized Bregman divergence
cs.CV
This work addresses the problem of error concealment in video transmission systems over noisy channels employing Bregman divergences along with regularization. Error concealment intends to improve the effects of disturbances at the reception due to bit-errors or cell loss in packet networks. Bregman regularization give...
computer science
26,575
Detecting Moving Regions in CrowdCam Images
cs.CV
We address the novel problem of detecting dynamic regions in CrowdCam images, a set of still images captured by a group of people. These regions capture the most interesting parts of the scene, and detecting them plays an important role in the analysis of visual data. Our method is based on the observation that matchin...
computer science
26,576
X-ray Scattering Image Classification Using Deep Learning
cs.CV
Visual inspection of x-ray scattering images is a powerful technique for probing the physical structure of materials at the molecular scale. In this paper, we explore the use of deep learning to develop methods for automatically analyzing x-ray scattering images. In particular, we apply Convolutional Neural Networks an...
computer science
26,577
Variables effecting photomosaic reconstruction and ortho-rectification from aerial survey datasets
cs.CV
Unmanned aerial vehicles now make it possible to obtain high quality aerial imagery at a low cost, but processing those images into a single, useful entity is neither simple nor seamless. Specifically, there are factors that must be addressed when merging multiple images into a single coherent one. While ortho-rectific...
computer science
26,578
Fast Algorithm of High-resolution Microwave Imaging Using the Non-parametric Generalized Reflectivity Model
cs.CV
This paper presents an efficient algorithm of high-resolution microwave imaging based on the concept of generalized reflectivity. The contribution made in this paper is two-fold. We introduce the concept of non-parametric generalized reflectivity (GR, for short) as a function of operational frequencies and view angles,...
computer science
26,579
Evaluating Urbanization from Satellite and Aerial Images by means of a statistical approach to the texture analysis
cs.CV
Statistical methods are usually applied in the processing of digital images for the analysis of the textures displayed by them. Aiming to evaluate the urbanization of a given location from satellite or aerial images, here we consider a simple processing to distinguish in them the 'urban' from the 'rural' texture. The m...
computer science
26,580
Construction Inspection through Spatial Database
cs.CV
This paper presents a novel pipeline for development of an efficient set of tools for extracting information from the video of a structure, captured by an Unmanned Aircraft System (UAS) to produce as-built documentation to aid inspection of large multi-storied building during construction. Our system uses the output fr...
computer science
26,581
Adaptive Deep Pyramid Matching for Remote Sensing Scene Classification
cs.CV
Convolutional neural networks (CNNs) have attracted increasing attention in the remote sensing community. Most CNNs only take the last fully-connected layers as features for the classification of remotely sensed images, discarding the other convolutional layer features which may also be helpful for classification purpo...
computer science
26,582
Learning Multi-Scale Deep Features for High-Resolution Satellite Image Classification
cs.CV
In this paper, we propose a multi-scale deep feature learning method for high-resolution satellite image classification. Specifically, we firstly warp the original satellite image into multiple different scales. The images in each scale are employed to train a deep convolutional neural network (DCNN). However, simultan...
computer science
26,583
Deep Convolutional Neural Network for Inverse Problems in Imaging
cs.CV
In this paper, we propose a novel deep convolutional neural network (CNN)-based algorithm for solving ill-posed inverse problems. Regularized iterative algorithms have emerged as the standard approach to ill-posed inverse problems in the past few decades. These methods produce excellent results, but can be challenging ...
computer science
26,584
MCMC Shape Sampling for Image Segmentation with Nonparametric Shape Priors
cs.CV
Segmenting images of low quality or with missing data is a challenging problem. Integrating statistical prior information about the shapes to be segmented can improve the segmentation results significantly. Most shape-based segmentation algorithms optimize an energy functional and find a point estimate for the object t...
computer science
26,585
Effective sparse representation of X-Ray medical images
cs.CV
Effective sparse representation of X-Ray medical images within the context of data reduction is considered. The proposed framework is shown to render an enormous reduction in the cardinality of the data set required to represent this class of images at very good quality. The particularity of the approach is that it can...
computer science
26,586
When Fashion Meets Big Data: Discriminative Mining of Best Selling Clothing Features
cs.CV
With the prevalence of e-commence websites and the ease of online shopping, consumers are embracing huge amounts of various options in products. Undeniably, shopping is one of the most essential activities in our society and studying consumer's shopping behavior is important for the industry as well as sociology and ps...
computer science
26,587
Learning Scene-specific Object Detectors Based on a Generative-Discriminative Model with Minimal Supervision
cs.CV
One object class may show large variations due to diverse illuminations, backgrounds and camera viewpoints. Traditional object detection methods often perform worse under unconstrained video environments. To address this problem, many modern approaches model deep hierarchical appearance representations for object detec...
computer science
26,588
Optimized clothes segmentation to boost gender classification in unconstrained scenarios
cs.CV
Several applications require demographic information of ordinary people in unconstrained scenarios. This is not a trivial task due to significant human appearance variations. In this work, we introduce trixels for clustering image regions, enumerating their advantages compared to superpixels. The classical GrabCut algo...
computer science
26,589
Least Squares Generative Adversarial Networks
cs.CV
Unsupervised learning with generative adversarial networks (GANs) has proven hugely successful. Regular GANs hypothesize the discriminator as a classifier with the sigmoid cross entropy loss function. However, we found that this loss function may lead to the vanishing gradients problem during the learning process. To o...
computer science
26,590
Responses to Critiques on Machine Learning of Criminality Perceptions (Addendum of arXiv:1611.04135)
cs.CV
In November 2016 we submitted to arXiv our paper "Automated Inference on Criminality Using Face Images". It generated a great deal of discussions in the Internet and some media outlets. Our work is only intended for pure academic discussions; how it has become a media consumption is a total surprise to us. Although in ...
computer science
26,591
Hand Gesture Recognition for Contactless Device Control in Operating Rooms
cs.CV
Hand gesture is one of the most important means of touchless communication between human and machines. There is a great interest for commanding electronic equipment in surgery rooms by hand gesture for reducing the time of surgery and the potential for infection. There are challenges in implementation of a hand gesture...
computer science
26,592
Semi-Dense 3D Semantic Mapping from Monocular SLAM
cs.CV
The bundle of geometry and appearance in computer vision has proven to be a promising solution for robots across a wide variety of applications. Stereo cameras and RGB-D sensors are widely used to realise fast 3D reconstruction and trajectory tracking in a dense way. However, they lack flexibility of seamless switch be...
computer science
26,593
Convolutional Regression for Visual Tracking
cs.CV
Recently, discriminatively learned correlation filters (DCF) has drawn much attention in visual object tracking community. The success of DCF is potentially attributed to the fact that a large amount of samples are utilized to train the ridge regression model and predict the location of object. To solve the regression ...
computer science
26,594
Growing Interpretable Part Graphs on ConvNets via Multi-Shot Learning
cs.CV
This paper proposes a learning strategy that extracts object-part concepts from a pre-trained convolutional neural network (CNN), in an attempt to 1) explore explicit semantics hidden in CNN units and 2) gradually grow a semantically interpretable graphical model on the pre-trained CNN for hierarchical object understan...
computer science
26,595
Baseline CNN structure analysis for facial expression recognition
cs.CV
We present a baseline convolutional neural network (CNN) structure and image preprocessing methodology to improve facial expression recognition algorithm using CNN. To analyze the most efficient network structure, we investigated four network structures that are known to show good performance in facial expression recog...
computer science
26,596
A DNN Framework For Text Image Rectification From Planar Transformations
cs.CV
In this paper, a novel neural network architecture is proposed attempting to rectify text images with mild assumptions. A new dataset of text images is collected to verify our model and open to public. We explored the capability of deep neural network in learning geometric transformation and found the model could segme...
computer science
26,597
Herding Generalizes Diverse M -Best Solutions
cs.CV
We show that the algorithm to extract diverse M -solutions from a Conditional Random Field (called divMbest [1]) takes exactly the form of a Herding procedure [2], i.e. a deterministic dynamical system that produces a sequence of hypotheses that respect a set of observed moment constraints. This generalization enables ...
computer science
26,598
Selfie Detection by Synergy-Constraint Based Convolutional Neural Network
cs.CV
Categorisation of huge amount of data on the multimedia platform is a crucial task. In this work, we propose a novel approach to address the subtle problem of selfie detection for image database segregation on the web, given rapid rise in number of selfies clicked. A Convolutional Neural Network (CNN) is modeled to lea...
computer science
26,599
Automatic discovery of discriminative parts as a quadratic assignment problem
cs.CV
Part-based image classification consists in representing categories by small sets of discriminative parts upon which a representation of the images is built. This paper addresses the question of how to automatically learn such parts from a set of labeled training images. The training of parts is cast as a quadratic ass...
computer science
26,600
Can fully convolutional networks perform well for general image restoration problems?
cs.CV
We present a fully convolutional network(FCN) based approach for color image restoration. FCNs have recently shown remarkable performance for high-level vision problem like semantic segmentation. In this paper, we investigate if FCN models can show promising performance for low-level problems like image restoration as ...
computer science
26,601
Fast Task-Specific Target Detection via Graph Based Constraints Representation and Checking
cs.CV
In this work, we present a fast target detection framework for real-world robotics applications. Considering that an intelligent agent attends to a task-specific object target during execution, our goal is to detect the object efficiently. We propose the concept of early recognition, which influences the candidate prop...
computer science