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4,000
Space and camera path reconstruction for omni-directional vision
cs.CV
In this paper, we address the inverse problem of reconstructing a scene as well as the camera motion from the image sequence taken by an omni-directional camera. Our structure from motion results give sharp conditions under which the reconstruction is unique. For example, if there are three points in general position a...
computer science
4,001
A New Approach to Automated Epileptic Diagnosis Using EEG and Probabilistic Neural Network
cs.AI
Epilepsy is one of the most common neurological disorders that greatly impair patient' daily lives. Traditional epileptic diagnosis relies on tedious visual screening by neurologists from lengthy EEG recording that requires the presence of seizure (ictal) activities. Nowadays, there are many systems helping the neurolo...
computer science
4,002
Evaluation for Uncertain Image Classification and Segmentation
cs.CV
Each year, numerous segmentation and classification algorithms are invented or reused to solve problems where machine vision is needed. Generally, the efficiency of these algorithms is compared against the results given by one or many human experts. However, in many situations, the location of the real boundaries of th...
computer science
4,003
Human expert fusion for image classification
cs.CV
In image classification, merging the opinion of several human experts is very important for different tasks such as the evaluation or the training. Indeed, the ground truth is rarely known before the scene imaging. We propose here different models in order to fuse the informations given by two or more experts. The cons...
computer science
4,004
Fusion de classifieurs pour la classification d'images sonar
cs.CV
In this paper, we present some high level information fusion approaches for numeric and symbolic data. We study the interest of such method particularly for classifier fusion. A comparative study is made in a context of sea bed characterization from sonar images. The classi- fication of kind of sediment is a difficult ...
computer science
4,005
Experts Fusion and Multilayer Perceptron Based on Belief Learning for Sonar Image Classification
cs.CV
The sonar images provide a rapid view of the seabed in order to characterize it. However, in such as uncertain environment, real seabed is unknown and the only information we can obtain, is the interpretation of different human experts, sometimes in conflict. In this paper, we propose to manage this conflict in order t...
computer science
4,006
Generalized proportional conflict redistribution rule applied to Sonar imagery and Radar targets classification
cs.CV
In this chapter, we present two applications in information fusion in order to evaluate the generalized proportional conflict redistribution rule presented in the chapter \cite{Martin06a}. Most of the time the combination rules are evaluated only on simple examples. We study here different combination rules and compare...
computer science
4,007
An Image-Based Sensor System for Autonomous Rendez-Vous with Uncooperative Satellites
cs.CV
In this paper are described the image processing algorithms developed by SENER, Ingenieria y Sistemas to cope with the problem of image-based, autonomous rendez-vous (RV) with an orbiting satellite. The methods developed have a direct application in the OLEV (Orbital Life Extension Extension Vehicle) mission. OLEV is a...
computer science
4,008
Are Tensor Decomposition Solutions Unique? On the global convergence of HOSVD and ParaFac algorithms
cs.CV
For tensor decompositions such as HOSVD and ParaFac, the objective functions are nonconvex. This implies, theoretically, there exists a large number of local optimas: starting from different starting point, the iteratively improved solution will converge to different local solutions. This non-uniqueness present a stabi...
computer science
4,009
Automated Epilepsy Diagnosis Using Interictal Scalp EEG
cs.AI
Approximately over 50 million people worldwide suffer from epilepsy. Traditional diagnosis of epilepsy relies on tedious visual screening by highly trained clinicians from lengthy EEG recording that contains the presence of seizure (ictal) activities. Nowadays, there are many automatic systems that can recognize seizur...
computer science
4,010
Face Recognition by Fusion of Local and Global Matching Scores using DS Theory: An Evaluation with Uni-classifier and Multi-classifier Paradigm
cs.CV
Faces are highly deformable objects which may easily change their appearance over time. Not all face areas are subject to the same variability. Therefore decoupling the information from independent areas of the face is of paramount importance to improve the robustness of any face recognition technique. This paper prese...
computer science
4,011
Face Identification by SIFT-based Complete Graph Topology
cs.CV
This paper presents a new face identification system based on Graph Matching Technique on SIFT features extracted from face images. Although SIFT features have been successfully used for general object detection and recognition, only recently they were applied to face recognition. This paper further investigates the pe...
computer science
4,012
SIFT-based Ear Recognition by Fusion of Detected Keypoints from Color Similarity Slice Regions
cs.CV
Ear biometric is considered as one of the most reliable and invariant biometrics characteristics in line with iris and fingerprint characteristics. In many cases, ear biometrics can be compared with face biometrics regarding many physiological and texture characteristics. In this paper, a robust and efficient ear recog...
computer science
4,013
Feature Level Fusion of Biometrics Cues: Human Identification with Doddingtons Caricature
cs.CV
This paper presents a multimodal biometric system of fingerprint and ear biometrics. Scale Invariant Feature Transform (SIFT) descriptor based feature sets extracted from fingerprint and ear are fused. The fused set is encoded by K-medoids partitioning approach with less number of feature points in the set. K-medoids p...
computer science
4,014
Feature Level Fusion of Face and Fingerprint Biometrics
cs.CV
The aim of this paper is to study the fusion at feature extraction level for face and fingerprint biometrics. The proposed approach is based on the fusion of the two traits by extracting independent feature pointsets from the two modalities, and making the two pointsets compatible for concatenation. Moreover, to handle...
computer science
4,015
Multibiometrics Belief Fusion
cs.CV
This paper proposes a multimodal biometric system through Gaussian Mixture Model (GMM) for face and ear biometrics with belief fusion of the estimated scores characterized by Gabor responses and the proposed fusion is accomplished by Dempster-Shafer (DS) decision theory. Face and ear images are convolved with Gabor wav...
computer science
4,016
Combining Multiple Feature Extraction Techniques for Handwritten Devnagari Character Recognition
cs.CV
In this paper we present an OCR for Handwritten Devnagari Characters. Basic symbols are recognized by neural classifier. We have used four feature extraction techniques namely, intersection, shadow feature, chain code histogram and straight line fitting features. Shadow features are computed globally for character imag...
computer science
4,017
Feature Selection via Sparse Approximation for Face Recognition
cs.CV
Inspired by biological vision systems, the over-complete local features with huge cardinality are increasingly used for face recognition during the last decades. Accordingly, feature selection has become more and more important and plays a critical role for face data description and recognition. In this paper, we propo...
computer science
4,018
Multi-task GLOH feature selection for human age estimation
cs.CV
In this paper, we propose a novel age estimation method based on GLOH feature descriptor and multi-task learning (MTL). The GLOH feature descriptor, one of the state-of-the-art feature descriptor, is used to capture the age-related local and spatial information of face image. As the exacted GLOH features are often redu...
computer science
4,019
Identification of arabic word from bilingual text using character features
cs.AI
The identification of the language of the script is an important stage in the process of recognition of the writing. There are several works in this research area, which treat various languages. Most of the used methods are global or statistical. In this present paper, we study the possibility of using the features of ...
computer science
4,020
Recovering Epipolar Geometry from Images of Smooth Surfaces
cs.CV
We present four methods for recovering the epipolar geometry from images of smooth surfaces. In the existing methods for recovering epipolar geometry corresponding feature points are used that cannot be found in such images. The first method is based on finding corresponding characteristic points created by illuminatio...
computer science
4,021
Vision-Based Navigation III: Pose and Motion from Omnidirectional Optical Flow and a Digital Terrain Map
cs.CV
An algorithm for pose and motion estimation using corresponding features in omnidirectional images and a digital terrain map is proposed. In previous paper, such algorithm for regular camera was considered. Using a Digital Terrain (or Digital Elevation) Map (DTM/DEM) as a global reference enables recovering the absolut...
computer science
4,022
Gender Recognition Based on Sift Features
cs.AI
This paper proposes a robust approach for face detection and gender classification in color images. Previous researches about gender recognition suppose an expensive computational and time-consuming pre-processing step in order to alignment in which face images are aligned so that facial landmarks like eyes, nose, lips...
computer science
4,023
Generalized Fast Approximate Energy Minimization via Graph Cuts: Alpha-Expansion Beta-Shrink Moves
cs.CV
We present alpha-expansion beta-shrink moves, a simple generalization of the widely-used alpha-beta swap and alpha-expansion algorithms for approximate energy minimization. We show that in a certain sense, these moves dominate both alpha-beta-swap and alpha-expansion moves, but unlike previous generalizations the new m...
computer science
4,024
Kernel diff-hash
cs.CV
This paper presents a kernel formulation of the recently introduced diff-hash algorithm for the construction of similarity-sensitive hash functions. Our kernel diff-hash algorithm that shows superior performance on the problem of image feature descriptor matching.
computer science
4,025
Feature selection using nearest attributes
cs.CV
Feature selection is an important problem in high-dimensional data analysis and classification. Conventional feature selection approaches focus on detecting the features based on a redundancy criterion using learning and feature searching schemes. In contrast, we present an approach that identifies the need to select f...
computer science
4,026
Examplers based image fusion features for face recognition
cs.CV
Examplers of a face are formed from multiple gallery images of a person and are used in the process of classification of a test image. We incorporate such examplers in forming a biologically inspired local binary decisions on similarity based face recognition method. As opposed to single model approaches such as face a...
computer science
4,027
An MLP based Approach for Recognition of Handwritten `Bangla' Numerals
cs.CV
The work presented here involves the design of a Multi Layer Perceptron (MLP) based pattern classifier for recognition of handwritten Bangla digits using a 76 element feature vector. Bangla is the second most popular script and language in the Indian subcontinent and the fifth most popular language in the world. The fe...
computer science
4,028
Handwritten Bangla Alphabet Recognition using an MLP Based Classifier
cs.CV
The work presented here involves the design of a Multi Layer Perceptron (MLP) based classifier for recognition of handwritten Bangla alphabet using a 76 element feature set Bangla is the second most popular script and language in the Indian subcontinent and the fifth most popular language in the world. The feature set ...
computer science
4,029
Exact and Approximate Inference in Associative Hierarchical Networks using Graph Cuts
cs.AI
Markov Networks are widely used through out computer vision and machine learning. An important subclass are the Associative Markov Networks which are used in a wide variety of applications. For these networks a good approximate minimum cost solution can be found efficiently using graph cut based move making algorithms ...
computer science
4,030
Texture Classification Approach Based on Combination of Edge & Co-occurrence and Local Binary Pattern
cs.CV
Texture classification is one of the problems which has been paid much attention on by computer scientists since late 90s. If texture classification is done correctly and accurately, it can be used in many cases such as Pattern recognition, object tracking, and shape recognition. So far, there have been so many methods...
computer science
4,031
Mouse Simulation Using Two Coloured Tapes
cs.AI
In this paper, we present a novel approach for Human Computer Interaction (HCI) where, we control cursor movement using a real-time camera. Current methods involve changing mouse parts such as adding more buttons or changing the position of the tracking ball. Instead, our method is to use a camera and computer vision t...
computer science
4,032
Clustering and Bayesian network for image of faces classification
cs.CV
In a content based image classification system, target images are sorted by feature similarities with respect to the query (CBIR). In this paper, we propose to use new approach combining distance tangent, k-means algorithm and Bayesian network for image classification. First, we use the technique of tangent distance to...
computer science
4,033
Skin-color based videos categorization
cs.CV
On dedicated websites, people can upload videos and share it with the rest of the world. Currently these videos are cat- egorized manually by the help of the user community. In this paper, we propose a combination of color spaces with the Bayesian network approach for robust detection of skin color followed by an autom...
computer science
4,034
Simultaneous Object Detection, Tracking, and Event Recognition
cs.CV
The common internal structure and algorithmic organization of object detection, detection-based tracking, and event recognition facilitates a general approach to integrating these three components. This supports multidirectional information flow between these components allowing object detection to influence tracking a...
computer science
4,035
Video In Sentences Out
cs.CV
We present a system that produces sentential descriptions of video: who did what to whom, and where and how they did it. Action class is rendered as a verb, participant objects as noun phrases, properties of those objects as adjectival modifiers in those noun phrases,spatial relations between those participants as prep...
computer science
4,036
Large-Scale Automatic Labeling of Video Events with Verbs Based on Event-Participant Interaction
cs.CV
We present an approach to labeling short video clips with English verbs as event descriptions. A key distinguishing aspect of this work is that it labels videos with verbs that describe the spatiotemporal interaction between event participants, humans and objects interacting with each other, abstracting away all object...
computer science
4,037
Multimodal diffusion geometry by joint diagonalization of Laplacians
cs.CV
We construct an extension of diffusion geometry to multiple modalities through joint approximate diagonalization of Laplacian matrices. This naturally extends classical data analysis tools based on spectral geometry, such as diffusion maps and spectral clustering. We provide several synthetic and real examples of manif...
computer science
4,038
Approximate evaluation of marginal association probabilities with belief propagation
cs.AI
Data association, the problem of reasoning over correspondence between targets and measurements, is a fundamental problem in tracking. This paper presents a graphical model formulation of data association and applies an approximate inference method, belief propagation (BP), to obtain estimates of marginal association p...
computer science
4,039
Lattice Particle Filters
cs.AI
A standard approach to approximate inference in state-space models isto apply a particle filter, e.g., the Condensation Algorithm.However, the performance of particle filters often varies significantlydue to their stochastic nature.We present a class of algorithms, called lattice particle filters, thatcircumvent this d...
computer science
4,040
Multi-objects association in perception of dynamical situation
cs.AI
In current perception systems applied to the rebuilding of the environment for intelligent vehicles, the part reserved to object association for the tracking is increasingly significant. This allows firstly to follow the objects temporal evolution and secondly to increase the reliability of environment perception. We p...
computer science
4,041
Model-based Influence Diagrams for Machine Vision
cs.CV
We show an approach to automated control of machine vision systems based on incremental creation and evaluation of a particular family of influence diagrams that represent hypotheses of imagery interpretation and possible subsequent processing decisions. In our approach, model-based machine vision techniques are integr...
computer science
4,042
Comparisons of Reasoning Mechanisms for Computer Vision
cs.CV
An evidential reasoning mechanism based on the Dempster-Shafer theory of evidence is introduced. Its performance in real-world image analysis is compared with other mechanisms based on the Bayesian formalism and a simple weight combination method.
computer science
4,043
Evidential Reasoning in Image Understanding
cs.CV
In this paper, we present some results of evidential reasoning in understanding multispectral images of remote sensing systems. The Dempster-Shafer approach of combination of evidences is pursued to yield contextual classification results, which are compared with previous results of the Bayesian context free classifica...
computer science
4,044
Evidential Reasoning in Parallel Hierarchical Vision Programs
cs.AI
This paper presents an efficient adaptation and application of the Dempster-Shafer theory of evidence, one that can be used effectively in a massively parallel hierarchical system for visual pattern perception. It describes the techniques used, and shows in an extended example how they serve to improve the system's per...
computer science
4,045
Fuzzy Modeling of Electrical Impedance Tomography Image of the Lungs
cs.AI
Electrical Impedance Tomography (EIT) is a functional imaging method that is being developed for bedside use in critical care medicine. Aiming at improving the chest anatomical resolution of EIT images we developed a fuzzy model based on EIT high temporal resolution and the functional information contained in the pulmo...
computer science
4,046
Non-Negative Matrix Factorization, Convexity and Isometry
cs.AI
In this paper we explore avenues for improving the reliability of dimensionality reduction methods such as Non-Negative Matrix Factorization (NMF) as interpretive exploratory data analysis tools. We first explore the difficulties of the optimization problem underlying NMF, showing for the first time that non-trivial NM...
computer science
4,047
Vision-Based Navigation I: A navigation filter for fusing DTM/correspondence updates
cs.CV
An algorithm for pose and motion estimation using corresponding features in images and a digital terrain map is proposed. Using a Digital Terrain (or Digital Elevation) Map (DTM/DEM) as a global reference enables recovering the absolute position and orientation of the camera. In order to do this, the DTM is used to for...
computer science
4,048
Vision-Based Navigation II: Error Analysis for a Navigation Algorithm based on Optical-Flow and a Digital Terrain Map
cs.CV
The paper deals with the error analysis of a navigation algorithm that uses as input a sequence of images acquired by a moving camera and a Digital Terrain Map (DTM) of the region been imaged by the camera during the motion. The main sources of error are more or less straightforward to identify: camera resolution, stru...
computer science
4,049
Building the information kernel and the problem of recognition
cs.CV
At this point in time there is a need for a new representation of different information, to identify and organize descending its characteristics. Today, science is a powerful tool for the description of reality - the numbers. Why the most important property of numbers. Suppose we have a number 0.2351734, it is clear th...
computer science
4,050
Comments on "A new combination of evidence based on compromise" by K. Yamada
cs.CV
Comments on ``A new combination of evidence based on compromise'' by K. Yamada
computer science
4,051
An Embarrassingly Simple Speed-Up of Belief Propagation with Robust Potentials
cs.CV
We present an exact method of greatly speeding up belief propagation (BP) for a wide variety of potential functions in pairwise MRFs and other graphical models. Specifically, our technique applies whenever the pairwise potentials have been {\em truncated} to a constant value for most pairs of states, as is commonly don...
computer science
4,052
Efficient Independence-Based MAP Approach for Robust Markov Networks Structure Discovery
cs.AI
This work introduces the IB-score, a family of independence-based score functions for robust learning of Markov networks independence structures. Markov networks are a widely used graphical representation of probability distributions, with many applications in several fields of science. The main advantage of the IB-sco...
computer science
4,053
Transductive-Inductive Cluster Approximation Via Multivariate Chebyshev Inequality
cs.CV
Approximating adequate number of clusters in multidimensional data is an open area of research, given a level of compromise made on the quality of acceptable results. The manuscript addresses the issue by formulating a transductive inductive learning algorithm which uses multivariate Chebyshev inequality. Considering c...
computer science
4,054
A General Methodology for the Determination of 2D Bodies Elastic Deformation Invariants. Application to the Automatic Identification of Parasites
cs.CV
A novel methodology is introduced here that exploits 2D images of arbitrary elastic body deformation instances, so as to quantify mechano-elastic characteristics that are deformation invariant. Determination of such characteristics allows for developing methods offering an image of the undeformed body. General assumpti...
computer science
4,055
Full Object Boundary Detection by Applying Scale Invariant Features in a Region Merging Segmentation Algorithm
cs.CV
Object detection is a fundamental task in computer vision and has many applications in image processing. This paper proposes a new approach for object detection by applying scale invariant feature transform (SIFT) in an automatic segmentation algorithm. SIFT is an invariant algorithm respect to scale, translation and r...
computer science
4,056
Color Texture Classification Approach Based on Combination of Primitive Pattern Units and Statistical Features
cs.CV
Texture classification became one of the problems which has been paid much attention on by image processing scientists since late 80s. Consequently, since now many different methods have been proposed to solve this problem. In most of these methods the researchers attempted to describe and discriminate textures based o...
computer science
4,057
The Statistical Inefficiency of Sparse Coding for Images (or, One Gabor to Rule them All)
cs.CV
Sparse coding is a proven principle for learning compact representations of images. However, sparse coding by itself often leads to very redundant dictionaries. With images, this often takes the form of similar edge detectors which are replicated many times at various positions, scales and orientations. An immediate co...
computer science
4,058
Neural Networks for Handwritten English Alphabet Recognition
cs.AI
This paper demonstrates the use of neural networks for developing a system that can recognize hand-written English alphabets. In this system, each English alphabet is represented by binary values that are used as input to a simple feature extraction system, whose output is fed to our neural network system.
computer science
4,059
On Considering Uncertainty and Alternatives in Low-Level Vision
cs.AI
In this paper we address the uncertainty issues involved in the low-level vision task of image segmentation. Researchers in computer vision have worked extensively on this problem, in which the goal is to partition (or segment) an image into regions that are homogeneous or uniform in some sense. This segmentation is of...
computer science
4,060
Application of the SP theory of intelligence to the understanding of natural vision and the development of computer vision
cs.CV
The SP theory of intelligence aims to simplify and integrate concepts in computing and cognition, with information compression as a unifying theme. This article discusses how it may be applied to the understanding of natural vision and the development of computer vision. The theory, which is described quite fully elsew...
computer science
4,061
Brain Tumor Segmentation with Deep Neural Networks
cs.CV
In this paper, we present a fully automatic brain tumor segmentation method based on Deep Neural Networks (DNNs). The proposed networks are tailored to glioblastomas (both low and high grade) pictured in MR images. By their very nature, these tumors can appear anywhere in the brain and have almost any kind of shape, si...
computer science
4,062
Image Reconstruction from Bag-of-Visual-Words
cs.CV
The objective of this work is to reconstruct an original image from Bag-of-Visual-Words (BoVW). Image reconstruction from features can be a means of identifying the characteristics of features. Additionally, it enables us to generate novel images via features. Although BoVW is the de facto standard feature for image re...
computer science
4,063
Diffusion Methods for Classification with Pairwise Relationships
cs.AI
We define two algorithms for propagating information in classification problems with pairwise relationships. The algorithms are based on contraction maps and are related to non-linear diffusion and random walks on graphs. The approach is also related to message passing algorithms, including belief propagation and mean ...
computer science
4,064
Feature Representation for Online Signature Verification
cs.CV
Biometrics systems have been used in a wide range of applications and have improved people authentication. Signature verification is one of the most common biometric methods with techniques that employ various specifications of a signature. Recently, deep learning has achieved great success in many fields, such as imag...
computer science
4,065
3D-R2N2: A Unified Approach for Single and Multi-view 3D Object Reconstruction
cs.CV
Inspired by the recent success of methods that employ shape priors to achieve robust 3D reconstructions, we propose a novel recurrent neural network architecture that we call the 3D Recurrent Reconstruction Neural Network (3D-R2N2). The network learns a mapping from images of objects to their underlying 3D shapes from ...
computer science
4,066
Volumetric and Multi-View CNNs for Object Classification on 3D Data
cs.CV
3D shape models are becoming widely available and easier to capture, making available 3D information crucial for progress in object classification. Current state-of-the-art methods rely on CNNs to address this problem. Recently, we witness two types of CNNs being developed: CNNs based upon volumetric representations ve...
computer science
4,067
Single-Image Depth Perception in the Wild
cs.CV
This paper studies single-image depth perception in the wild, i.e., recovering depth from a single image taken in unconstrained settings. We introduce a new dataset "Depth in the Wild" consisting of images in the wild annotated with relative depth between pairs of random points. We also propose a new algorithm that lea...
computer science
4,068
Annotation Order Matters: Recurrent Image Annotator for Arbitrary Length Image Tagging
cs.CV
Automatic image annotation has been an important research topic in facilitating large scale image management and retrieval. Existing methods focus on learning image-tag correlation or correlation between tags to improve annotation accuracy. However, most of these methods evaluate their performance using top-k retrieval...
computer science
4,069
Estimating 3D Trajectories from 2D Projections via Disjunctive Factored Four-Way Conditional Restricted Boltzmann Machines
cs.CV
Estimation, recognition, and near-future prediction of 3D trajectories based on their two dimensional projections available from one camera source is an exceptionally difficult problem due to uncertainty in the trajectories and environment, high dimensionality of the specific trajectory states, lack of enough labeled d...
computer science
4,070
Bayesian Inference of Recursive Sequences of Group Activities from Tracks
cs.AI
We present a probabilistic generative model for inferring a description of coordinated, recursively structured group activities at multiple levels of temporal granularity based on observations of individuals' trajectories. The model accommodates: (1) hierarchically structured groups, (2) activities that are temporally ...
computer science
4,071
Makeup like a superstar: Deep Localized Makeup Transfer Network
cs.CV
In this paper, we propose a novel Deep Localized Makeup Transfer Network to automatically recommend the most suitable makeup for a female and synthesis the makeup on her face. Given a before-makeup face, her most suitable makeup is determined automatically. Then, both the beforemakeup and the reference faces are fed in...
computer science
4,072
Balancing Appearance and Context in Sketch Interpretation
cs.AI
We describe a sketch interpretation system that detects and classifies clock numerals created by subjects taking the Clock Drawing Test, a clinical tool widely used to screen for cognitive impairments (e.g., dementia). We describe how it balances appearance and context, and document its performance on some 2,000 drawin...
computer science
4,073
Semantic Change Detection with Hypermaps
cs.CV
Change detection is the study of detecting changes between two different images of a scene taken at different times. By the detected change areas, however, a human cannot understand how different the two images. Therefore, a semantic understanding is required in the change detection research such as disaster investigat...
computer science
4,074
Improving feature selection algorithms using normalised feature histograms
cs.AI
The proposed feature selection method builds a histogram of the most stable features from random subsets of a training set and ranks the features based on a classifier based cross-validation. This approach reduces the instability of features obtained by conventional feature selection methods that occur with variation i...
computer science
4,075
Multi-column Deep Neural Networks for Image Classification
cs.CV
Traditional methods of computer vision and machine learning cannot match human performance on tasks such as the recognition of handwritten digits or traffic signs. Our biologically plausible deep artificial neural network architectures can. Small (often minimal) receptive fields of convolutional winner-take-all neurons...
computer science
4,076
Segmentation of Offline Handwritten Bengali Script
cs.CV
Character segmentation has long been one of the most critical areas of optical character recognition process. Through this operation, an image of a sequence of characters, which may be connected in some cases, is decomposed into sub-images of individual alphabetic symbols. In this paper, segmentation of cursive handwri...
computer science
4,077
Feature Based Fuzzy Rule Base Design for Image Extraction
cs.CV
In the recent advancement of multimedia technologies, it becomes a major concern of detecting visual attention regions in the field of image processing. The popularity of the terminal devices in a heterogeneous environment of the multimedia technology gives us enough scope for the betterment of image visualization. Alt...
computer science
4,078
Gray Image extraction using Fuzzy Logic
cs.CV
Fuzzy systems concern fundamental methodology to represent and process uncertainty and imprecision in the linguistic information. The fuzzy systems that use fuzzy rules to represent the domain knowledge of the problem are known as Fuzzy Rule Base Systems (FRBS). On the other hand image segmentation and subsequent extra...
computer science
4,079
Leaf vein segmentation using Odd Gabor filters and morphological operations
cs.CV
Leaf vein forms the basis of leaf characterization and classification. Different species have different leaf vein patterns. It is seen that leaf vein segmentation will help in maintaining a record of all the leaves according to their specific pattern of veins thus provide an effective way to retrieve and store informat...
computer science
4,080
Artificial Neural Network Fuzzy Inference System (ANFIS) For Brain Tumor Detection
cs.CV
Detection and segmentation of Brain tumor is very important because it provides anatomical information of normal and abnormal tissues which helps in treatment planning and patient follow-up. There are number of techniques for image segmentation. Proposed research work uses ANFIS (Artificial Neural Network Fuzzy Inferen...
computer science
4,081
Autonomous Navigation by Robust Scan Matching Technique
cs.CV
For effective autonomous navigation,estimation of the pose of the robot is essential at every sampling time. For computing an accurate estimation,odometric error needs to be reduced with the help of data from external sensor. In this work, a technique has been developed for accurate pose estimation of mobile robot by u...
computer science
4,082
Image Segmentation in Video Sequences: A Probabilistic Approach
cs.CV
"Background subtraction" is an old technique for finding moving objects in a video sequence for example, cars driving on a freeway. The idea is that subtracting the current image from a timeaveraged background image will leave only nonstationary objects. It is, however, a crude approximation to the task of classifying ...
computer science
4,083
Fast Image Scanning with Deep Max-Pooling Convolutional Neural Networks
cs.CV
Deep Neural Networks now excel at image classification, detection and segmentation. When used to scan images by means of a sliding window, however, their high computational complexity can bring even the most powerful hardware to its knees. We show how dynamic programming can speedup the process by orders of magnitude, ...
computer science
4,084
Object Recognition with Imperfect Perception and Redundant Description
cs.CV
This paper deals with a scene recognition system in a robotics contex. The general problem is to match images with <I>a priori</I> descriptions. A typical mission would consist in identifying an object in an installation with a vision system situated at the end of a manipulator and with a human operator provided descri...
computer science
4,085
Geodesic-based Salient Object Detection
cs.CV
Saliency detection has been an intuitive way to provide useful cues for object detection and segmentation, as desired for many vision and graphics applications. In this paper, we provided a robust method for salient object detection and segmentation. Other than using various pixel-level contrast definitions, we exploit...
computer science
4,086
Active Sensing as Bayes-Optimal Sequential Decision Making
cs.AI
Sensory inference under conditions of uncertainty is a major problem in both machine learning and computational neuroscience. An important but poorly understood aspect of sensory processing is the role of active sensing. Here, we present a Bayes-optimal inference and control framework for active sensing, C-DAC (Context...
computer science
4,087
Structured Sparse Method for Hyperspectral Unmixing
cs.CV
Hyperspectral Unmixing (HU) has received increasing attention in the past decades due to its ability of unveiling information latent in hyperspectral data. Unfortunately, most existing methods fail to take advantage of the spatial information in data. To overcome this limitation, we propose a Structured Sparse regulari...
computer science
4,088
Gabor Filter and Rough Clustering Based Edge Detection
cs.CV
This paper introduces an efficient edge detection method based on Gabor filter and rough clustering. The input image is smoothed by Gabor function, and the concept of rough clustering is used to focus on edge detection with soft computational approach. Hysteresis thresholding is used to get the actual output, i.e. edge...
computer science
4,089
Cognitive-mapping and contextual pyramid based Digital Elevation Model Registration and its effective storage using fractal based compression
cs.AI
Digital Elevation models (DEM) are images having terrain information embedded into them. Using cognitive mapping concepts for DEM registration, has evolved from this basic idea of using the mapping between the space to objects and defining their relationships to form the basic landmarks that need to be marked, stored a...
computer science
4,090
Using Descriptive Video Services to Create a Large Data Source for Video Annotation Research
cs.CV
In this work, we introduce a dataset of video annotated with high quality natural language phrases describing the visual content in a given segment of time. Our dataset is based on the Descriptive Video Service (DVS) that is now encoded on many digital media products such as DVDs. DVS is an audio narration describing t...
computer science
4,091
Partial Sum Minimization of Singular Values in Robust PCA: Algorithm and Applications
cs.CV
Robust Principal Component Analysis (RPCA) via rank minimization is a powerful tool for recovering underlying low-rank structure of clean data corrupted with sparse noise/outliers. In many low-level vision problems, not only it is known that the underlying structure of clean data is low-rank, but the exact rank of clea...
computer science
4,092
Commonly Uncommon: Semantic Sparsity in Situation Recognition
cs.CV
Semantic sparsity is a common challenge in structured visual classification problems; when the output space is complex, the vast majority of the possible predictions are rarely, if ever, seen in the training set. This paper studies semantic sparsity in situation recognition, the task of producing structured summaries o...
computer science
4,093
Knowing When to Look: Adaptive Attention via A Visual Sentinel for Image Captioning
cs.CV
Attention-based neural encoder-decoder frameworks have been widely adopted for image captioning. Most methods force visual attention to be active for every generated word. However, the decoder likely requires little to no visual information from the image to predict non-visual words such as "the" and "of". Other words ...
computer science
4,094
Multimodal Transfer: A Hierarchical Deep Convolutional Neural Network for Fast Artistic Style Transfer
cs.CV
Transferring artistic styles onto everyday photographs has become an extremely popular task in both academia and industry. Recently, offline training has replaced on-line iterative optimization, enabling nearly real-time stylization. When those stylization networks are applied directly to high-resolution images, howeve...
computer science
4,095
Salient Region Detection with Convex Hull Overlap
cs.CV
In this paper, we establish a novel bottom-up cue named Convex Hull Overlap (CHO), and then propose an effective approach to detect salient regions using the combination of the CHO cue and global contrast cue. Our scheme significantly differs from other earlier work in: 1) The hierarchical segmentation model based on N...
computer science
4,096
Segmentation of large images based on super-pixels and community detection in graphs
cs.CV
Image segmentation has many applications which range from machine learning to medical diagnosis. In this paper, we propose a framework for the segmentation of images based on super-pixels and algorithms for community identification in graphs. The super-pixel pre-segmentation step reduces the number of nodes in the grap...
computer science
4,097
FastMask: Segment Multi-scale Object Candidates in One Shot
cs.CV
Objects appear to scale differently in natural images. This fact requires methods dealing with object-centric tasks (e.g. object proposal) to have robust performance over variances in object scales. In the paper, we present a novel segment proposal framework, namely FastMask, which takes advantage of hierarchical featu...
computer science
4,098
From Virtual to Real World Visual Perception using Domain Adaptation -- The DPM as Example
cs.CV
Supervised learning tends to produce more accurate classifiers than unsupervised learning in general. This implies that training data is preferred with annotations. When addressing visual perception challenges, such as localizing certain object classes within an image, the learning of the involved classifiers turns out...
computer science
4,099
Real-time face swapping as a tool for understanding infant self-recognition
cs.AI
To study the preference of infants for contingency of movements and familiarity of faces during self-recognition task, we built, as an accurate and instantaneous imitator, a real-time face- swapper for videos. We present a non-constraint face-swapper based on 3D visual tracking that achieves real-time performance throu...
computer science