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Face Recognition Using Scattering Convolutional NetworkJul 30 2016Face recognition has been an active research area in the past few decades. In general, face recognition can be very challenging due to variations in viewpoint, illumination, facial expression, etc. Therefore it is essential to extract features which are ... More

Image Decomposition Using a Robust Regression ApproachSep 13 2016This paper considers how to separate text and/or graphics from smooth background in screen content and mixed content images and proposes an algorithm to perform this segmentation task. The proposed methods make use of the fact that the background in each ... More

Palmprint Recognition Using Deep Scattering Convolutional NetworkMar 30 2016Palmprint recognition has drawn a lot of attention during the recent years. Many algorithms have been proposed for palmprint recognition in the past, majority of them being based on features extracted from the transform domain. Many of these transform ... More

Screen Content Image Segmentation Using Sparse Decomposition and Total Variation MinimizationFeb 07 2016Jul 26 2016Sparse decomposition has been widely used for different applications, such as source separation, image classification, image denoising and more. This paper presents a new algorithm for segmentation of an image into background and foreground text and graphics ... More

Fingerprint Recognition Using Translation Invariant Scattering NetworkSep 11 2015Nov 26 2015Fingerprint recognition has drawn a lot of attention during last decades. Different features and algorithms have been used for fingerprint recognition in the past. In this paper, a powerful image representation called scattering transform/network, is ... More

Screen Content Image Segmentation Using Robust Regression and Sparse DecompositionJul 08 2016This paper considers how to separate text and/or graphics from smooth background in screen content and mixed document images and proposes two approaches to perform this segmentation task. The proposed methods make use of the fact that the background in ... More

Image Segmentation Using Overlapping Group SparsityNov 23 2016Nov 26 2016Sparse decomposition has been widely used for different applications, such as source separation, image classification and image denoising. This paper presents a new algorithm for segmentation of an image into background and foreground text and graphics ... More

Screen Content Image Segmentation Using Least Absolute Deviation FittingJan 15 2015Feb 19 2015We propose an algorithm for separating the foreground (mainly text and line graphics) from the smoothly varying background in screen content images. The proposed method is designed based on the assumption that the background part of the image is smoothly ... More

Image Segmentation Using Overlapping Group SparsityNov 23 2016Sparse decomposition has been widely used for different applications, such as source separation, image classification and image denoising. This paper presents a new algorithm for segmentation of an image into background and foreground text and graphics ... More

A Deep Unsupervised Learning Approach Toward MTBI Identification Using Diffusion MRIFeb 08 2018Mild traumatic brain injury (mTBI) is a growing public health problem with an estimated incidence of one million people annually in US. Neurocognitive tests have been used to both assess the patient condition and to monitor the patient progress. This ... More

Iris Recognition Using Scattering Transform and Textural FeaturesJul 08 2015Iris recognition has drawn a lot of attention since the mid-twentieth century. Among all biometric features, iris is known to possess a rich set of features. Different features have been used to perform iris recognition in the past. In this paper, two ... More

A Geometric Approach For Fully Automatic Chromosome SegmentationDec 18 2011Sep 01 2014A fundamental task in human chromosome analysis is chromosome segmentation. Segmentation plays an important role in chromosome karyotyping. The first step in segmentation is to remove intrusive objects such as stain debris and other noises. The next step ... More

Multispectral Palmprint Recognition Using a Hybrid FeatureDec 27 2011Dec 11 2015Personal identification problem has been a major field of research in recent years. Biometrics-based technologies that exploit fingerprints, iris, face, voice and palmprints, have been in the center of attention to solve this problem. Palmprints can be ... More

A Robust Regression Approach for Background/Foreground SegmentationDec 16 2014Sep 01 2015Background/foreground segmentation has a lot of applications in image and video processing. In this paper, a segmentation algorithm is proposed which is mainly designed for text and line extraction in screen content. The proposed method makes use of the ... More

Screen Content Image Segmentation Using Sparse-Smooth DecompositionNov 21 2015Sparse decomposition has been extensively used for different applications including signal compression and denoising and document analysis. In this paper, sparse decomposition is used for image segmentation. The proposed algorithm separates the background ... More

Ego2Top: Matching Viewers in Egocentric and Top-view VideosJul 24 2016Aug 13 2016Egocentric cameras are becoming increasingly popular and provide us with large amounts of videos, captured from the first person perspective. At the same time, surveillance cameras and drones offer an abundance of visual information, often captured from ... More

A framework for computing effective boundary conditions at the interface between free fluid and a porous mediumApr 11 2016Nov 08 2016Interfacial boundary conditions determined from empirical or ad-hoc models remain the standard approach to model fluid flows over porous media, even in situations where the topology of the porous medium is known. We propose a non-empirical and accurate ... More

Egocentric Meets Top-viewAug 30 2016Sep 14 2016Thanks to the availability and increasing popularity of Egocentric cameras such as GoPro cameras, glasses, and etc. we have been provided with a plethora of videos captured from the first person perspective. Surveillance cameras and Unmanned Aerial Vehicles(also ... More

A framework for computing effective boundary conditions at the interface between free fluid and a porous mediumApr 11 2016Jun 28 2016Interfacial boundary conditions determined from empirical or ad-hoc models remain the standard approach to model fluid flows over porous media, even in situations where the topology of the porous medium is known. We propose a non-empirical and accurate ... More

On the strict endoscopic part of modular Siegel threefoldsMay 19 2013In this paper we study the non-holomorphic strict endoscopic parts of inner cohomology spaces of a modular Siegel threefold respect to local systems. First we show that there is a non-zero subspace of the strict endoscopic part such that it is constructed ... More

A stable fluid-structure-interaction solver for low-density rigid bodies using the immersed boundary projection methodOct 16 2015Nov 05 2015Dispersion of low-density rigid particles with complex geometries is ubiquitous in both natural and industrial environments. We show that while explicit methods for coupling the incompressible Navier-Stokes equations and Newton's equations of motion are ... More

Using Distance Estimation and Deep Learning to Simplify Calibration in Food Calorie MeasurementFeb 11 2015Mar 23 2015High calorie intake in the human body on the one hand, has proved harmful in numerous occasions leading to several diseases and on the other hand, a standard amount of calorie intake has been deemed essential by dieticians to maintain the right balance ... More

Construction of Solenoidal Immersed Velocity Vectors Using the Kinematic Velocity--Vorticity RelationApr 09 2012The present paper suggests a method for obtaining incompressible solenoidal velocity vectors that satisfy approximately the desired immersed velocity boundary conditions. The method employs merely the mutual kinematic relations between the velocity and ... More

Modeling Language Change in Historical Corpora: The Case of PortugueseSep 30 2016This paper presents a number of experiments to model changes in a historical Portuguese corpus composed of literary texts for the purpose of temporal text classification. Algorithms were trained to classify texts with respect to their publication date ... More

On A Generalization of Weak Armendariz RingsOct 06 2014We introduce the notion of J-Armendariz rings, which are a generalization of weak Armendariz rings and investigate their properties. We show that any local ring is J-Armendariz, and then fined a local ring that is not weak Armendariz.

On a generalization of McCoy RingsOct 13 2014We introduce Central McCoy rings, which are a generalization of McCoy rings and investigate their properties. For a ring R, we prove that R is right Central McCoy if and only if the polynomial ring R[x] is right Central McCoy. Also, we give some examples ... More

Shared Autonomy via Hindsight OptimizationMar 26 2015Apr 17 2015In shared autonomy, user input and robot autonomy are combined to control a robot to achieve a goal. Often, the robot does not know a priori which goal the user wants to achieve, and must both predict the user's intended goal, and assist in achieving ... More

An Immersed Boundary Fourier Pseudo-spectral Method for Simulation of Confined Two-dimensional Incompressible FlowsOct 27 2011The present paper is devoted to implementation of the immersed boundary technique into the Fourier pseudo-spectral solution of the vorticity-velocity formulation of the two-dimensional incompressible Navier--Stokes equations. The immersed boundary conditions ... More

Improving the Sphere-Packing Bound for Binary Codes over Memoryless Symmetric ChannelsJul 26 2010A lower bound on the minimum required code length of binary codes is obtained. The bound is obtained based on observing a close relation between the Ulam's liar game and channel coding. In fact, Spencer's optimal solution to the game is used to derive ... More

Experimental study of a three dimensional cylinder-filament systemJun 02 2015This experimental study reports on the behavior of a filament attached to the rear of a three- dimensional cylinder. The axis of the cylinder is placed normal to a uniform incoming flow and the filament is free to move in the cylinder wake. The mean position ... More

Automatic Method for Identifying Photospheric Bright Points and Granules Observed by SunriseJul 09 2014In this study, we propose methods for the automatic detection of photospheric features (bright points and granules) from ultra-violet (UV) radiation, using a feature-based classifier. The methods use quiet-Sun observations at 214 nm and 525 nm images ... More

Passive control of a falling sphere by elliptic-shaped appendagesOct 12 2016Oct 21 2016The majority of investigations characterizing the motion of single or multiple particles in fluid flows consider canonical body shapes, such as spheres, cylinders, discs, etc. However, protrusions on bodies -- being either as surface imperfections or ... More

On a generalization of NC-McCoy RingsOct 12 2014In the present paper we concentrate on a natural generalization of NC-McCoy rings that is called J-McCoy and investigate their properties. We prove that local rings are J-McCoy. Also, for an abelian ring R, we show that R is J-McCoy if and only if eR ... More

On Central Skew Armendariz ringsSep 29 2014For a ring endomirphism, we introduce the central skew Armendariz rings, which are a generalization of skew Armendariz rings and central Armendariz rings, and investigate their properties.

Passive control of a falling sphere by elliptic-shaped appendagesOct 12 2016The majority of investigations characterizing the motion of single or multiple particles in fluid flows consider canonical body shapes, such as spheres, cylinders, discs, etc. However, protrusions on bodies -- being either as surface imperfections or ... More

Discriminating Similar Languages: Evaluations and ExplorationsSep 30 2016We present an analysis of the performance of machine learning classifiers on discriminating between similar languages and language varieties. We carried out a number of experiments using the results of the two editions of the Discriminating between Similar ... More

Stability of a jet in crossflowOct 19 2010We have produced a fluid dynamics video with data from Direct Numerical Simulation (DNS) of a jet in crossflow at several low values of the velocity inflow ratio R. We show that, as the velocity ratio R increases, the flow evolves from simple periodic ... More

Efficient Touch Based Localization through SubmodularityAug 30 2012Apr 23 2013Many robotic systems deal with uncertainty by performing a sequence of information gathering actions. In this work, we focus on the problem of efficiently constructing such a sequence by drawing an explicit connection to submodularity. Ideally, we would ... More

Simultaneous Reduction of Dynamic and Static Power in Scan StructuresOct 25 2007Power dissipation during test is a major challenge in testing integrated circuits. Dynamic power has been the dominant part of power dissipation in CMOS circuits, however, in future technologies the static portion of power dissipation will outreach the ... More

Near Optimal Bayesian Active Learning for Decision MakingFeb 24 2014How should we gather information to make effective decisions? We address Bayesian active learning and experimental design problems, where we sequentially select tests to reduce uncertainty about a set of hypotheses. Instead of minimizing uncertainty per ... More

FaceBots: Steps Towards Enhanced Long-Term Human-Robot Interaction by Utilizing and Publishing Online Social InformationApr 30 2009Our project aims at supporting the creation of sustainable and meaningful longer-term human-robot relationships through the creation of embodied robots with face recognition and natural language dialogue capabilities, which exploit and publish social ... More

Autonomy Infused Teleoperation with Application to BCI ManipulationMar 18 2015Jun 07 2015Robot teleoperation systems face a common set of challenges including latency, low-dimensional user commands, and asymmetric control inputs. User control with Brain-Computer Interfaces (BCIs) exacerbates these problems through especially noisy and erratic ... More