Unnamed: 0
int64
0
41k
title
stringlengths
4
274
category
stringlengths
5
18
summary
stringlengths
22
3.66k
theme
stringclasses
8 values
24,502
Maximum Margin Vector Correlation Filter
cs.CV
Correlation Filters (CFs) are a class of classifiers which are designed for accurate pattern localization. Traditionally CFs have been used with scalar features only, which limits their ability to be used with vector feature representations like Gabor filter banks, SIFT, HOG, etc. In this paper we present a new CF name...
computer science
24,503
A General Homogeneous Matrix Formulation to 3D Rotation Geometric Transformations
cs.CV
We present algebraic projective geometry definitions of 3D rotations so as to bridge a small gap between the applications and the definitions of 3D rotations in homogeneous matrix form. A general homogeneous matrix formulation to 3D rotation geometric transformations is proposed which suits for the cases when the rotat...
computer science
24,504
Improving weather radar by fusion and classification
cs.CV
In air traffic management (ATM) all necessary operations (tactical planing, sector configuration, required staffing, runway configuration, routing of approaching aircrafts) rely on accurate measurements and predictions of the current weather situation. An essential basis of information is delivered by weather radar ima...
computer science
24,505
Indoor Activity Detection and Recognition for Sport Games Analysis
cs.CV
Activity recognition in sport is an attractive field for computer vision research. Game, player and team analysis are of great interest and research topics within this field emerge with the goal of automated analysis. The very specific underlying rules of sports can be used as prior knowledge for the recognition task a...
computer science
24,506
Robust and Efficient Subspace Segmentation via Least Squares Regression
cs.CV
This paper studies the subspace segmentation problem which aims to segment data drawn from a union of multiple linear subspaces. Recent works by using sparse representation, low rank representation and their extensions attract much attention. If the subspaces from which the data drawn are independent or orthogonal, the...
computer science
24,507
Stereo on a budget
cs.CV
We propose an algorithm for recovering depth using less than two images. Instead of having both cameras send their entire image to the host computer, the left camera sends its image to the host while the right camera sends only a fraction $\epsilon$ of its image. The key aspect is that the cameras send the information ...
computer science
24,508
Computer vision-based recognition of liquid surfaces and phase boundaries in transparent vessels, with emphasis on chemistry applications
cs.CV
The ability to recognize the liquid surface and the liquid level in transparent containers is perhaps the most commonly used evaluation method when dealing with fluids. Such recognition is essential in determining the liquid volume, fill level, phase boundaries and phase separation in various fluid systems. The recogni...
computer science
24,509
Spatially Directional Predictive Coding for Block-based Compressive Sensing of Natural Images
cs.CV
A novel coding strategy for block-based compressive sens-ing named spatially directional predictive coding (SDPC) is proposed, which efficiently utilizes the intrinsic spatial cor-relation of natural images. At the encoder, for each block of compressive sensing (CS) measurements, the optimal pre-diction is selected fro...
computer science
24,510
Structural Group Sparse Representation for Image Compressive Sensing Recovery
cs.CV
Compressive Sensing (CS) theory shows that a signal can be decoded from many fewer measurements than suggested by the Nyquist sampling theory, when the signal is sparse in some domain. Most of conventional CS recovery approaches, however, exploited a set of fixed bases (e.g. DCT, wavelet, contourlet and gradient domain...
computer science
24,511
Image Compressive Sensing Recovery Using Adaptively Learned Sparsifying Basis via L0 Minimization
cs.CV
From many fewer acquired measurements than suggested by the Nyquist sampling theory, compressive sensing (CS) theory demonstrates that, a signal can be reconstructed with high probability when it exhibits sparsity in some domain. Most of the conventional CS recovery approaches, however, exploited a set of fixed bases (...
computer science
24,512
High-Speed Tracking with Kernelized Correlation Filters
cs.CV
The core component of most modern trackers is a discriminative classifier, tasked with distinguishing between the target and the surrounding environment. To cope with natural image changes, this classifier is typically trained with translated and scaled sample patches. Such sets of samples are riddled with redundancies...
computer science
24,513
Dynamic Mode Decomposition for Real-Time Background/Foreground Separation in Video
cs.CV
This paper introduces the method of dynamic mode decomposition (DMD) for robustly separating video frames into background (low-rank) and foreground (sparse) components in real-time. The method is a novel application of a technique used for characterizing nonlinear dynamical systems in an equation-free manner by decompo...
computer science
24,514
Selecting a Small Set of Optimal Gestures from an Extensive Lexicon
cs.CV
Finding the best set of gestures to use for a given computer recognition problem is an essential part of optimizing the recognition performance while being mindful to those who may articulate the gestures. An objective function, called the ellipsoidal distance ratio metric (EDRM), for determining the best gestures from...
computer science
24,515
A graph-based mathematical morphology reader
cs.CV
This survey paper aims at providing a "literary" anthology of mathematical morphology on graphs. It describes in the English language many ideas stemming from a large number of different papers, hence providing a unified view of an active and diverse field of research.
computer science
24,516
Pixel-wise Orthogonal Decomposition for Color Illumination Invariant and Shadow-free Image
cs.CV
In this paper, we propose a novel, effective and fast method to obtain a color illumination invariant and shadow-free image from a single outdoor image. Different from state-of-the-art methods for shadow-free image that either need shadow detection or statistical learning, we set up a linear equation set for each pixel...
computer science
24,517
Deep Poselets for Human Detection
cs.CV
We address the problem of detecting people in natural scenes using a part approach based on poselets. We propose a bootstrapping method that allows us to collect millions of weakly labeled examples for each poselet type. We use these examples to train a Convolutional Neural Net to discriminate different poselet types a...
computer science
24,518
BiofilmQuant: A Computer-Assisted Tool for Dental Biofilm Quantification
cs.CV
Dental biofilm is the deposition of microbial material over a tooth substratum. Several methods have recently been reported in the literature for biofilm quantification; however, at best they provide a barely automated solution requiring significant input needed from the human expert. On the contrary, state-of-the-art ...
computer science
24,519
Strengthening the Effectiveness of Pedestrian Detection with Spatially Pooled Features
cs.CV
We propose a simple yet effective approach to the problem of pedestrian detection which outperforms the current state-of-the-art. Our new features are built on the basis of low-level visual features and spatial pooling. Incorporating spatial pooling improves the translational invariance and thus the robustness of the d...
computer science
24,520
Multiple Moving Object Recognitions in video based on Log Gabor-PCA Approach
cs.CV
Object recognition in the video sequence or images is one of the sub-field of computer vision. Moving object recognition from a video sequence is an appealing topic with applications in various areas such as airport safety, intrusion surveillance, video monitoring, intelligent highway, etc. Moving object recognition is...
computer science
24,521
From Manifold to Manifold: Geometry-Aware Dimensionality Reduction for SPD Matrices
cs.CV
Representing images and videos with Symmetric Positive Definite (SPD) matrices and considering the Riemannian geometry of the resulting space has proven beneficial for many recognition tasks. Unfortunately, computation on the Riemannian manifold of SPD matrices --especially of high-dimensional ones-- comes at a high co...
computer science
24,522
Calibration of Multiple Fish-Eye Cameras Using a Wand
cs.CV
Fish-eye cameras are becoming increasingly popular in computer vision, but their use for 3D measurement is limited partly due to the lack of an accurate, efficient and user-friendly calibration procedure. For such a purpose, we propose a method to calibrate the intrinsic and extrinsic parameters (including radial disto...
computer science
24,523
Homophilic Clustering by Locally Asymmetric Geometry
cs.CV
Clustering is indispensable for data analysis in many scientific disciplines. Detecting clusters from heavy noise remains challenging, particularly for high-dimensional sparse data. Based on graph-theoretic framework, the present paper proposes a novel algorithm to address this issue. The locally asymmetric geometries ...
computer science
24,524
Large-scale Supervised Hierarchical Feature Learning for Face Recognition
cs.CV
This paper proposes a novel face recognition algorithm based on large-scale supervised hierarchical feature learning. The approach consists of two parts: hierarchical feature learning and large-scale model learning. The hierarchical feature learning searches feature in three levels of granularity in a supervised way. F...
computer science
24,525
Novel methods for multilinear data completion and de-noising based on tensor-SVD
cs.CV
In this paper we propose novel methods for completion (from limited samples) and de-noising of multilinear (tensor) data and as an application consider 3-D and 4- D (color) video data completion and de-noising. We exploit the recently proposed tensor-Singular Value Decomposition (t-SVD)[11]. Based on t-SVD, the notion ...
computer science
24,526
Simultaneous Detection and Segmentation
cs.CV
We aim to detect all instances of a category in an image and, for each instance, mark the pixels that belong to it. We call this task Simultaneous Detection and Segmentation (SDS). Unlike classical bounding box detection, SDS requires a segmentation and not just a box. Unlike classical semantic segmentation, we require...
computer science
24,527
Regression-Based Image Alignment for General Object Categories
cs.CV
Gradient-descent methods have exhibited fast and reliable performance for image alignment in the facial domain, but have largely been ignored by the broader vision community. They require the image function be smooth and (numerically) differentiable -- properties that hold for pixel-based representations obeying natura...
computer science
24,528
Learning Discriminative Stein Kernel for SPD Matrices and Its Applications
cs.CV
Stein kernel has recently shown promising performance on classifying images represented by symmetric positive definite (SPD) matrices. It evaluates the similarity between two SPD matrices through their eigenvalues. In this paper, we argue that directly using the original eigenvalues may be problematic because: i) Eigen...
computer science
24,529
Orientation covariant aggregation of local descriptors with embeddings
cs.CV
Image search systems based on local descriptors typically achieve orientation invariance by aligning the patches on their dominant orientations. Albeit successful, this choice introduces too much invariance because it does not guarantee that the patches are rotated consistently. This paper introduces an aggregation str...
computer science
24,530
Fast Separable Non-Local Means
cs.CV
We propose a simple and fast algorithm called PatchLift for computing distances between patches (contiguous block of samples) extracted from a given one-dimensional signal. PatchLift is based on the observation that the patch distances can be efficiently computed from a matrix that is derived from the one-dimensional s...
computer science
24,531
Online Stroke and Akshara Recognition GUI in Assamese Language Using Hidden Markov Model
cs.CV
The work describes the development of Online Assamese Stroke & Akshara Recognizer based on a set of language rules. In handwriting literature strokes are composed of two coordinate trace in between pen down and pen up labels. The Assamese aksharas are combination of a number of strokes, the maximum number of strokes ta...
computer science
24,532
Classifiers fusion method to recognize handwritten persian numerals
cs.CV
Recognition of Persian handwritten characters has been considered as a significant field of research for the last few years under pattern analysing technique. In this paper, a new approach for robust handwritten Persian numerals recognition using strong feature set and a classifier fusion method is scrutinized to incre...
computer science
24,533
A Statistical Modeling Approach to Computer-Aided Quantification of Dental Biofilm
cs.CV
Biofilm is a formation of microbial material on tooth substrata. Several methods to quantify dental biofilm coverage have recently been reported in the literature, but at best they provide a semi-automated approach to quantification with significant input from a human grader that comes with the graders bias of what are...
computer science
24,534
Classifying Fonts and Calligraphy Styles Using Complex Wavelet Transform
cs.CV
Recognizing fonts has become an important task in document analysis, due to the increasing number of available digital documents in different fonts and emphases. A generic font-recognition system independent of language, script and content is desirable for processing various types of documents. At the same time, catego...
computer science
24,535
Offline handwritten signature identification using adaptive window positioning techniques
cs.CV
The paper presents to address this challenge, we have proposed the use of Adaptive Window Positioning technique which focuses on not just the meaning of the handwritten signature but also on the individuality of the writer. This innovative technique divides the handwritten signature into 13 small windows of size nxn(13...
computer science
24,536
ARTOS -- Adaptive Real-Time Object Detection System
cs.CV
ARTOS is all about creating, tuning, and applying object detection models with just a few clicks. In particular, ARTOS facilitates learning of models for visual object detection by eliminating the burden of having to collect and annotate a large set of positive and negative samples manually and in addition it implement...
computer science
24,537
On the Convergence of the Mean Shift Algorithm in the One-Dimensional Space
cs.CV
The mean shift algorithm is a non-parametric and iterative technique that has been used for finding modes of an estimated probability density function. It has been successfully employed in many applications in specific areas of machine vision, pattern recognition, and image processing. Although the mean shift algorithm...
computer science
24,538
CIDI-Lung-Seg: A Single-Click Annotation Tool for Automatic Delineation of Lungs from CT Scans
cs.CV
Accurate and fast extraction of lung volumes from computed tomography (CT) scans remains in a great demand in the clinical environment because the available methods fail to provide a generic solution due to wide anatomical variations of lungs and existence of pathologies. Manual annotation, current gold standard, is ti...
computer science
24,539
Near-optimal Keypoint Sampling for Fast Pathological Lung Segmentation
cs.CV
Accurate delineation of pathological lungs from computed tomography (CT) images remains mostly unsolved because available methods fail to provide a reliable generic solution due to high variability of abnormality appearance. Local descriptor-based classification methods have shown to work well in annotating pathologies...
computer science
24,540
Optimally Stabilized PET Image Denoising Using Trilateral Filtering
cs.CV
Low-resolution and signal-dependent noise distribution in positron emission tomography (PET) images makes denoising process an inevitable step prior to qualitative and quantitative image analysis tasks. Conventional PET denoising methods either over-smooth small-sized structures due to resolution limitation or make inc...
computer science
24,541
Articulated Pose Estimation by a Graphical Model with Image Dependent Pairwise Relations
cs.CV
We present a method for estimating articulated human pose from a single static image based on a graphical model with novel pairwise relations that make adaptive use of local image measurements. More precisely, we specify a graphical model for human pose which exploits the fact the local image measurements can be used b...
computer science
24,542
Optimizing Auto-correlation for Fast Target Search in Large Search Space
cs.CV
In remote sensing image-blurring is induced by many sources such as atmospheric scatter, optical aberration, spatial and temporal sensor integration. The natural blurring can be exploited to speed up target search by fast template matching. In this paper, we synthetically induce additional non-uniform blurring to furth...
computer science
24,543
Measuring Atmospheric Scattering from Digital Images of Urban Scenery using Temporal Polarization-Based Vision
cs.CV
Particulate Matter (PM) is a form of air pollution that visually degrades urban scenery and is hazardous to human health and the environment. Current monitoring devices are limited in measuring average PM over large areas. Quantifying the visual effects of haze in digital images of urban scenery and correlating these e...
computer science
24,544
An Enhancement Neighborhood connected Segmentation for 2D-Cellular Image
cs.CV
A good segmentation result depends on a set of "correct" choice for the seeds. When the input images are noisy, the seeds may fall on atypical pixels that are not representative of the region statistics. This can lead to erroneous segmentation results. In this paper, an automatic seeded region growing algorithm is prop...
computer science
24,545
Enhanced EZW Technique for Compression of Image by Setting Detail Retaining Pass Number
cs.CV
This submission has been withdrawn by arXiv administrators because it contains excessive and unattributed reuse of content from other authors.
computer science
24,546
A New Approach for Super resolution by Using Web Images and FFT Based Image Registration
cs.CV
Preserving accuracy is a challenging issue in super resolution images. In this paper, we propose a new FFT based image registration algorithm and a sparse based super resolution algorithm to improve the accuracy of super resolution image. Given a low resolution image, our approach initially extracts the local descripto...
computer science
24,547
Spatiotemporal Stacked Sequential Learning for Pedestrian Detection
cs.CV
Pedestrian classifiers decide which image windows contain a pedestrian. In practice, such classifiers provide a relatively high response at neighbor windows overlapping a pedestrian, while the responses around potential false positives are expected to be lower. An analogous reasoning applies for image sequences. If the...
computer science
24,548
Recovery of Images with Missing Pixels using a Gradient Compressive Sensing Algorithm
cs.CV
This paper investigates the possibility of reconstruction of images considering that they are sparse in the DCT transformation domain. Two approaches are considered. One when the image is pre-processed in the DCT domain, using 8x8 blocks. The image is made sparse by setting the smallest DCT coefficients to zero. In the...
computer science
24,549
Depth Reconstruction from Sparse Samples: Representation, Algorithm, and Sampling
cs.CV
The rapid development of 3D technology and computer vision applications have motivated a thrust of methodologies for depth acquisition and estimation. However, most existing hardware and software methods have limited performance due to poor depth precision, low resolution and high computational cost. In this paper, we ...
computer science
24,550
Part-based R-CNNs for Fine-grained Category Detection
cs.CV
Semantic part localization can facilitate fine-grained categorization by explicitly isolating subtle appearance differences associated with specific object parts. Methods for pose-normalized representations have been proposed, but generally presume bounding box annotations at test time due to the difficulty of object d...
computer science
24,551
Globally Optimal Joint Image Segmentation and Shape Matching Based on Wasserstein Modes
cs.CV
A functional for joint variational object segmentation and shape matching is developed. The formulation is based on optimal transport w.r.t. geometric distance and local feature similarity. Geometric invariance and modelling of object-typical statistical variations is achieved by introducing degrees of freedom that des...
computer science
24,552
An iterative approach to Hough transform without re-voting
cs.CV
Many bone shapes in the human skeleton are characterized by profiles that can be associated to equations of algebraic curves. Fixing the parameters in the curve equation, by means of a classical pattern recognition procedure like the Hough transform technique, it is then possible to associate an equation to a specific ...
computer science
24,553
Image Fusion Using LEP Filtering and Bilinear Interpolation
cs.CV
Image Fusion is the process in which core information from a set of component images is merged to form a single image, which is more informative and complete than the component input images in quality and appearance. This paper presents a fast and effective image fusion method for creating high quality fused images by ...
computer science
24,554
Aggregate channel features for multi-view face detection
cs.CV
Face detection has drawn much attention in recent decades since the seminal work by Viola and Jones. While many subsequences have improved the work with more powerful learning algorithms, the feature representation used for face detection still can't meet the demand for effectively and efficiently handling faces with l...
computer science
24,555
Mobile Camera Array Calibration for Light Field Acquisition
cs.CV
The light field camera is useful for computer graphics and vision applications. Calibration is an essential step for these applications. After calibration, we can rectify the captured image by using the calibrated camera parameters. However, the large camera array calibration method, which assumes that all cameras are ...
computer science
24,556
Analysis of Gait Pattern to Recognize the Human Activities
cs.CV
Human activity recognition based on the computer vision is the process of labelling image sequences with action labels. Accurate systems for this problem are applied in areas such as visual surveillance, human computer interaction and video retrieval.
computer science
24,557
Affine Subspace Representation for Feature Description
cs.CV
This paper proposes a novel Affine Subspace Representation (ASR) descriptor to deal with affine distortions induced by viewpoint changes. Unlike the traditional local descriptors such as SIFT, ASR inherently encodes local information of multi-view patches, making it robust to affine distortions while maintaining a high...
computer science
24,558
Hand Pointing Detection Using Live Histogram Template of Forehead Skin
cs.CV
Hand pointing detection has multiple applications in many fields such as virtual reality and control devices in smart homes. In this paper, we proposed a novel approach to detect pointing vector in 2D space of a room. After background subtraction, face and forehead is detected. In the second step, forehead skin H-S pla...
computer science
24,559
LSDA: Large Scale Detection Through Adaptation
cs.CV
A major challenge in scaling object detection is the difficulty of obtaining labeled images for large numbers of categories. Recently, deep convolutional neural networks (CNNs) have emerged as clear winners on object classification benchmarks, in part due to training with 1.2M+ labeled classification images. Unfortunat...
computer science
24,560
Object Proposal Generation using Two-Stage Cascade SVMs
cs.CV
Object proposal algorithms have shown great promise as a first step for object recognition and detection. Good object proposal generation algorithms require high object recall rate as well as low computational cost, because generating object proposals is usually utilized as a preprocessing step. The problem of how to a...
computer science
24,561
Optimized Method for Iranian Road Signs Detection and recognition system
cs.CV
Road sign recognition is one of the core technologies in Intelligent Transport Systems. In the current study, a robust and real-time method is presented to identify and detect the roads speed signs in road image in different situations. In our proposed method, first, the connected components are created in the main ima...
computer science
24,562
Aggregation of local parametric candidates with exemplar-based occlusion handling for optical flow
cs.CV
Handling all together large displacements, motion details and occlusions remains an open issue for reliable computation of optical flow in a video sequence. We propose a two-step aggregation paradigm to address this problem. The idea is to supply local motion candidates at every pixel in a first step, and then to combi...
computer science
24,563
Detection of Sclerotic Spine Metastases via Random Aggregation of Deep Convolutional Neural Network Classifications
cs.CV
Automated detection of sclerotic metastases (bone lesions) in Computed Tomography (CT) images has potential to be an important tool in clinical practice and research. State-of-the-art methods show performance of 79% sensitivity or true-positive (TP) rate, at 10 false-positives (FP) per volume. We design a two-tiered co...
computer science
24,564
Joint Energy-based Detection and Classificationon of Multilingual Text Lines
cs.CV
This paper proposes a new hierarchical MDL-based model for a joint detection and classification of multilingual text lines in im- ages taken by hand-held cameras. The majority of related text detec- tion methods assume alphabet-based writing in a single language, e.g. in Latin. They use simple clustering heuristics spe...
computer science
24,565
Visual Word Selection without Re-Coding and Re-Pooling
cs.CV
The Bag-of-Words (BoW) representation is widely used in computer vision. The size of the codebook impacts the time and space complexity of the applications that use BoW. Thus, given a training set for a particular computer vision task, a key problem is pruning a large codebook to select only a subset of visual words. E...
computer science
24,566
FollowMe: Efficient Online Min-Cost Flow Tracking with Bounded Memory and Computation
cs.CV
One of the most popular approaches to multi-target tracking is tracking-by-detection. Current min-cost flow algorithms which solve the data association problem optimally have three main drawbacks: they are computationally expensive, they assume that the whole video is given as a batch, and they scale badly in memory an...
computer science
24,567
A robust and adaptable method for face detection based on Color Probabilistic Estimation Technique
cs.CV
Human face perception is currently an active research area in the computer vision community. Skin detection is one of the most important and primary stages for this purpose. So far, many approaches are proposed to done this case. Near all of these methods have tried to find best match intensity distribution with skin p...
computer science
24,568
Novel and Automatic Parking Inventory System Based on Pattern Recognition and Directional Chain Code
cs.CV
The objective of this paper is to design an efficient vehicle license plate recognition System and to implement it for automatic parking inventory system. The system detects the vehicle first and then captures the image of the front view of the vehicle. Vehicle license plate is localized and characters are segmented. F...
computer science
24,569
Performance evaluation of wavelet scattering network in image texture classification in various color spaces
cs.CV
Texture plays an important role in many image analysis applications. In this paper, we give a performance evaluation of color texture classification by performing wavelet scattering network in various color spaces. Experimental results on the KTH_TIPS_COL database show that opponent RGB based wavelet scattering network...
computer science
24,570
Recognition of Handwritten Persian/Arabic Numerals Based on Robust Feature Set and K-NN Classifier
cs.CV
This paper has been withdrawn by the author due to a crucial sign error in equation 2 and some mistake in Table 1 information. please let me for changing this information and updating this paper.
computer science
24,571
Novel and Fast Algorithm for Extracting License Plate Location Based on Edge Analysis
cs.CV
Nowadays in developing or developed countries, the Intelligent Transportation System (ITS) technology has attracted so much attention to itself. License Plate Recognition (LPR) systems have many applications in ITSs, such as the payment of parking fee, controlling the traffic volume, traffic data collection, etc. This ...
computer science
24,572
Real-Time and Efficient Method for Accuracy Enhancement of Edge Based License Plate Recognition System
cs.CV
License Plate Recognition plays an important role on the traffic monitoring and parking management. Administration and restriction of those transportation tools for their better service becomes very essential. In this paper, a fast and real time method has an appropriate application to find plates that the plat has til...
computer science
24,573
Novel and Tuneable Method for Skin Detection Based on Hybrid Color Space and Color Statistical Features
cs.CV
Skin detection is one of the most important and primary stages in some of image processing applications such as face detection and human tracking. So far, many approaches are proposed to done this case. Near all of these methods have tried to find best match intensity distribution with skin pixels based on popular colo...
computer science
24,574
New Method for Optimization of License Plate Recognition system with Use of Edge Detection and Connected Component
cs.CV
License Plate recognition plays an important role on the traffic monitoring and parking management systems. In this paper, a fast and real time method has been proposed which has an appropriate application to find tilt and poor quality plates. In the proposed method, at the beginning, the image is converted into binary...
computer science
24,575
A Robust and Efficient Method for Improving Accuracy of License Plate Characters Recognition
cs.CV
License Plate Recognition (LPR) plays an important role on the traffic monitoring and parking management. A robust and efficient method for enhancing accuracy of license plate characters recognition based on K Nearest Neighbours (K-NN) classifier is presented in this paper. The system first prepares a contour form of t...
computer science
24,576
Enhancing the Accuracy of Biometric Feature Extraction Fusion Using Gabor Filter and Mahalanobis Distance Algorithm
cs.CV
Biometric recognition systems have advanced significantly in the last decade and their use in specific applications will increase in the near future. The ability to conduct meaningful comparisons and assessments will be crucial to successful deployment and increasing biometric adoption. The best modality used as unimod...
computer science
24,577
A unified framework for thermal face recognition
cs.CV
The reduction of the cost of infrared (IR) cameras in recent years has made IR imaging a highly viable modality for face recognition in practice. A particularly attractive advantage of IR-based over conventional, visible spectrum-based face recognition stems from its invariance to visible illumination. In this paper we...
computer science
24,578
A discussion on the validation tests employed to compare human action recognition methods using the MSR Action3D dataset
cs.CV
This paper aims to determine which is the best human action recognition method based on features extracted from RGB-D devices, such as the Microsoft Kinect. A review of all the papers that make reference to MSR Action3D, the most used dataset that includes depth information acquired from a RGB-D device, has been perfor...
computer science
24,579
A Fast Hierarchical Method for Multi-script and Arbitrary Oriented Scene Text Extraction
cs.CV
Typography and layout lead to the hierarchical organisation of text in words, text lines, paragraphs. This inherent structure is a key property of text in any script and language, which has nonetheless been minimally leveraged by existing text detection methods. This paper addresses the problem of text segmentation in ...
computer science
24,580
A Survey on Two Dimensional Cellular Automata and Its Application in Image Processing
cs.CV
Parallel algorithms for solving any image processing task is a highly demanded approach in the modern world. Cellular Automata (CA) are the most common and simple models of parallel computation. So, CA has been successfully used in the domain of image processing for the last couple of years. This paper provides a surve...
computer science
24,581
Hyperspectral Imaging and Analysis for Sparse Reconstruction and Recognition
cs.CV
This thesis proposes spatio-spectral techniques for hyperspectral image analysis. Adaptive spatio-spectral support and variable exposure hyperspectral imaging is demonstrated to improve spectral reflectance recovery from hyperspectral images. Novel spectral dimensionality reduction techniques have been proposed from th...
computer science
24,582
Clustering Approach Towards Image Segmentation: An Analytical Study
cs.CV
Image processing is an important research area in computer vision. Image segmentation plays the vital rule in image processing research. There exist so many methods for image segmentation. Clustering is an unsupervised study. Clustering can also be used for image segmentation. In this paper, an in-depth study is done o...
computer science
24,583
Merging and Shifting of Images with Prominence Coefficient for Predictive Analysis using Combined Image
cs.CV
Shifting of objects in an image and merging many images after appropriate shifting is being used in several engineering and scientific applications which require complex perception development. A method has been presented here which could be used in precision engineering and biological applications where more precise p...
computer science
24,584
Accurate merging of images for predictive analysis using combined image
cs.CV
Several Scientific and engineering applications require merging of sampled images for complex perception development. In most cases, for such requirements, images are merged at intensity level. Even though it gives fairly good perception of combined scenario of objects and scenes, it is found that they are not sufficie...
computer science
24,585
A Bottom-Up Approach for Automatic Pancreas Segmentation in Abdominal CT Scans
cs.CV
Organ segmentation is a prerequisite for a computer-aided diagnosis (CAD) system to detect pathologies and perform quantitative analysis. For anatomically high-variability abdominal organs such as the pancreas, previous segmentation works report low accuracies when comparing to organs like the heart or liver. In this p...
computer science
24,586
Sparse Coding on Symmetric Positive Definite Manifolds using Bregman Divergences
cs.CV
This paper introduces sparse coding and dictionary learning for Symmetric Positive Definite (SPD) matrices, which are often used in machine learning, computer vision and related areas. Unlike traditional sparse coding schemes that work in vector spaces, in this paper we discuss how SPD matrices can be described by spar...
computer science
24,587
Kernel Coding: General Formulation and Special Cases
cs.CV
Representing images by compact codes has proven beneficial for many visual recognition tasks. Most existing techniques, however, perform this coding step directly in image feature space, where the distributions of the different classes are typically entangled. In contrast, here, we study the problem of performing codin...
computer science
24,588
Multi-tensor Completion for Estimating Missing Values in Video Data
cs.CV
Many tensor-based data completion methods aim to solve image and video in-painting problems. But, all methods were only developed for a single dataset. In most of real applications, we can usually obtain more than one dataset to reflect one phenomenon, and all the datasets are mutually related in some sense. Thus one q...
computer science
24,589
ImageNet Large Scale Visual Recognition Challenge
cs.CV
The ImageNet Large Scale Visual Recognition Challenge is a benchmark in object category classification and detection on hundreds of object categories and millions of images. The challenge has been run annually from 2010 to present, attracting participation from more than fifty institutions. This paper describes the c...
computer science
24,590
Transferring Landmark Annotations for Cross-Dataset Face Alignment
cs.CV
Dataset bias is a well known problem in object recognition domain. This issue, nonetheless, is rarely explored in face alignment research. In this study, we show that dataset plays an integral part of face alignment performance. Specifically, owing to face alignment dataset bias, training on one database and testing on...
computer science
24,591
Effective Spectral Unmixing via Robust Representation and Learning-based Sparsity
cs.CV
Hyperspectral unmixing (HU) plays a fundamental role in a wide range of hyperspectral applications. It is still challenging due to the common presence of outlier channels and the large solution space. To address the above two issues, we propose a novel model by emphasizing both robust representation and learning-based ...
computer science
24,592
Action Recognition in the Frequency Domain
cs.CV
In this paper, we describe a simple strategy for mitigating variability in temporal data series by shifting focus onto long-term, frequency domain features that are less susceptible to variability. We apply this method to the human action recognition task and demonstrate how working in the frequency domain can yield go...
computer science
24,593
Visual Speech Recognition
cs.CV
Lip reading is used to understand or interpret speech without hearing it, a technique especially mastered by people with hearing difficulties. The ability to lip read enables a person with a hearing impairment to communicate with others and to engage in social activities, which otherwise would be difficult. Recent adva...
computer science
24,594
The Evolution of First Person Vision Methods: A Survey
cs.CV
The emergence of new wearable technologies such as action cameras and smart-glasses has increased the interest of computer vision scientists in the First Person perspective. Nowadays, this field is attracting attention and investments of companies aiming to develop commercial devices with First Person Vision recording ...
computer science
24,595
Very Deep Convolutional Networks for Large-Scale Image Recognition
cs.CV
In this work we investigate the effect of the convolutional network depth on its accuracy in the large-scale image recognition setting. Our main contribution is a thorough evaluation of networks of increasing depth using an architecture with very small (3x3) convolution filters, which shows that a significant improveme...
computer science
24,596
Identifying Synapses Using Deep and Wide Multiscale Recursive Networks
cs.CV
In this work, we propose a learning framework for identifying synapses using a deep and wide multi-scale recursive (DAWMR) network, previously considered in image segmentation applications. We apply this approach on electron microscopy data from invertebrate fly brain tissue. By learning features directly from the data...
computer science
24,597
Depth image hand tracking from an overhead perspective using partially labeled, unbalanced data: Development and real-world testing
cs.CV
We present the development and evaluation of a hand tracking algorithm based on single depth images captured from an overhead perspective for use in the COACH prompting system. We train a random decision forest body part classifier using approximately 5,000 manually labeled, unbalanced, partially labeled training image...
computer science
24,598
A Computational Model of the Short-Cut Rule for 2D Shape Decomposition
cs.CV
We propose a new 2D shape decomposition method based on the short-cut rule. The short-cut rule originates from cognition research, and states that the human visual system prefers to partition an object into parts using the shortest possible cuts. We propose and implement a computational model for the short-cut rule and...
computer science
24,599
Image processing
cs.CV
Gabor filters can extract multi-orientation and multiscale features from face images. Researchers have designed different ways to use the magnitude of the filtered results for face recognition: Gabor Fisher classifier exploited only the magnitude information of Gabor magnitude pictures (GMPs); Local Gabor Binary Patter...
computer science
24,600
Comparing Feature Detectors: A bias in the repeatability criteria, and how to correct it
cs.CV
Most computer vision application rely on algorithms finding local correspondences between different images. These algorithms detect and compare stable local invariant descriptors centered at scale-invariant keypoints. Because of the importance of the problem, new keypoint detectors and descriptors are constantly being ...
computer science
24,601
F-formation Detection: Individuating Free-standing Conversational Groups in Images
cs.CV
Detection of groups of interacting people is a very interesting and useful task in many modern technologies, with application fields spanning from video-surveillance to social robotics. In this paper we first furnish a rigorous definition of group considering the background of the social sciences: this allows us to spe...
computer science