Dan Schonfeld

Nonstationary Analysis of Coding and Noncoding Regions in Nucleotide Sequences (2009)

Nidhal Bouaynaya, Dan Schonfeld, Senior Member

Abstract—Previous statistical analysis efforts of DNA sequences revealed that noncoding regions exhibit long-range power law correlations, whereas coding regions behave like random sequences or...

Theoretical Foundations of Spatially-Variant Mathematical Morphology Part I: Binary Images (2009)

Nidhal Bouaynaya, Mohammed Charif-chefchaouni, Dan Schonfeld, Senior Member

Abstract—We develop a general theory of spatially-variant (SV) mathematical morphology for binary images in the euclidean space.

Dynamic Proposal Variance and Optimal Particle Allocation in Particle Filtering for Video Tracking (2009)

Pan Pan, Student Member, Dan Schonfeld, Senior Member

Abstract—This paper presents a novel particle allocation approach to particle filtering which minimizes the total tracking distortion for a fixed number of particles over a video sequence. We...

Correspondence Robust Control-Based Object Tracking (2009)

Wei Qu, Dan Schonfeld, Senior Member

Abstract—This correspondence presents a video tracking framework using control-based observer design. It unifies several kernel-based approaches into a consistent theoretical framework by modeling...

Theoretical Foundations of Spatially-Variant Mathematical Morphology Part II: Gray-Level Images (2009)

Nidhal Bouaynaya, Dan Schonfeld, Senior Member

Abstract—In this paper, we develop a spatially-variant (SV) mathematical morphology theory for gray-level signals and images in the euclidean space. The proposed theory preserves the geometrical...

Two-Dimensional ARMA Modeling for Breast Cancer Detection and Classification (2009)

Bouaynaya, Nidhal, Zielinski, Jerzy, Schonfeld, Dan

We propose a new model-based computer-aided diagnosis (CAD) system for tumor detection and classification (cancerous v.s. benign) in breast images. Specifically, we show that (x-ray, ultrasound and...

Mapping Equivalence for Symbolic Sequences: Theory and Applications (2009)

Wang, Liming, Schonfeld, Dan

Processing of symbolic sequences represented by mapping of symbolic data into numerical signals is commonly used in various applications. It is a particularly popular approach in genomic and...

Real-Time Distributed Multi-Object Tracking Using Multiple Interactive Trackers and a Magnetic-Inertia Potential Model (2008)

Wei Qu, Dan Schonfeld, Senior Member, Magdi Mohamed, Associate Member

Abstract—This paper presents a method which avoids the common practice of using a complex joint state-space representation and performing tedious joint data association for multiple object tracking...

REAL-TIME NETWORK-AWARE OPTIMAL RATE CONTROL FOR VIDEO COMMUNICATION NETWORKS USING AN AUGMENTED STATE FEEDBACK CONTROLLER (2008)

Bulent Cavusoglu, Dan Schonfeld, Rashid Ansari

A real-time adaptive rate control algorithm for video transmission is presented. The proposed algorithm aims to determine the optimal rate at which the video should be sent through the network in...

Real-Time Decentralized Articulated Motion Analysis and Object Tracking From Videos (2008)

Wei Qu, Dan Schonfeld, Senior Member

Abstract—In this paper, we present two new articulated motion analysis and object tracking approaches: the decentralized articulated object tracking method and the hierarchical articulated object...

MULTI-DIMENSIONAL IMAGE RECONSTRUCTION AND FIELD ESTIMATION FROM RANDOMLY SCATTERED SENSORS (2008)

Pan Pan, Dan Schonfeld

Many important problems in statistical signal processing can be formulated as function estimation from randomly scattered sensors in a multi-dimensional space, e.g. image reconstruction from...

Video Communication Networks (2008)

Dan Schonfeld

In this presentation, a broad overview of video communication networks is provided. Numerous video communication applications are currently being developed including digital television, video...

Video Tracking Using Block Matching (2008)

Karthik Hariharaluishnan, Dan Schonfeld, Fathy Yassa

A tracking algorithm that predicts the object contour using motion vector information is proposed in this paper. Tracking is achieved by predicting the object boundary using motion vectors, followed...

A New Method for Multidimensional Optimization and Its Application in Image and Video Processing (2008)

Dan Schonfeld, Senior Member, Nidhal Bouaynaya, Student Member

Abstract—We derive a new method for multidimensional dynamic programming using the inclusion–exclusion principle. We subsequently propose an extension of the Viterbi algorithm to semi-causal,...

Stochastic Noise Process Enhancement of Hopfield Neural Networks (2008)

Vladimir Pavlović, Dan Schonfeld, Gary Friedman

Abstract—Hopfield neural networks (HNN) are a class of densely connected single-layer nonlinear networks of perceptrons. The network’s energy function is defined through a learning procedure so...

On the Relation of Order-Statistics Filters and Template Matching: Optimal Morphological Pattern Recognition (2008)

H. O. Peitgen, H. Jurgen, D. Saupe, Z. Baharav, D. Malah, E. Karnin, ...

image is used as the initial image for one-buffer-decoding [5] and conventional decoding. The output image of the first stage is used as the initial image in the proposed method. Besides, the...

TENSOR-BASED MULTIPLE OBJECT TRAJECTORY INDEXING AND RETRIEVAL (2008)

Xiang Ma, Faisal I. Bashir, Ashfaq A. Khokhar, Dan Schonfeld

This paper presents novel tensor-based object trajectory modelling techniques for simultaneous representation of multiple objects motion trajectories in a content based indexing and retrieval...

Protein Communication System: Evolution and Genomic Structure (2008)

Nidhal Bouaynaya, Dan Schonfeld

Abstract. We develop a mathematical model of the genetic information storage and transmission system and investigate its properties. Breaking with tradition, whereas the genetic information storage...

Spatially Variant Morphological Restoration and Skeleton Representation (2008)

Nidhal Bouaynaya, Student Member, Mohammed Charif-chefchaouni, Dan Schonfeld, Senior Member

Abstract—The theory of spatially variant (SV) mathematical morphology is used to extend and analyze two important image processing applications: morphological image restoration and skeleton...

Correspondence Image Reconstruction and Multidimensional Field Estimation From Randomly Scattered Sensors (2008)

Pan Pan, Student Member, Dan Schonfeld, Senior Member

Abstract—Many important problems in statistical signal processing can be formulated as function estimation from randomly scattered sensors in a multidimensional space, e.g., image reconstruction...

Correspondence On the Invertibility of the Morphological Representation of Binary Images (2008)

Mohammed Charif-chefchaouni, Dan Schonfeld

Absfract- In this correspondence, we investigate the invertibility of the morphological representation of binary images. A criteria for the invertibility of the morphological representation of binary...

doi:10.1155/2007/38373 Research Article Distributed Bayesian Multiple-Target Tracking in Crowded Environments Using Multiple Collaborative Cameras (2008)

Wei Qu, Dan Schonfeld, Magdi Mohamed

Multiple-target tracking has received tremendous attention due to its wide practical applicability in video processing and analysis applications. Most existing techniques, however, suffer from the...

Time-dependent ARMA modeling of genomic sequences (2008)

Zielinski, Jerzy S, Bouaynaya, Nidhal, Schonfeld, Dan, O'Neill, William

Abstract Background Over the past decade, many investigators have used sophisticated time series tools for the analysis of genomic sequences. Specifically, the correlation of the nucleotide chain has...

ROBUST KERNEL-BASED TRACKING USING OPTIMAL CONTROL (2008)

Wei Qu, Dan Schonfeld

Although more efficient in computation compared to other tracking approaches such as particle filtering, the kernel-based tracking suffers from the “singularity ” problem which makes the tracking...

Classification and Recognition (2008)

Faisal I. Bashir, Ashfaq A. Khokhar, Dan Schonfeld

Abstract — Motion trajectories provide rich spatio-temporal information about an object’s activity. The trajectory information can be obtained using a tracking algorithm on data streams available...

ONLINE VIDEO STABILIZATION BASED ON PARTICLE FILTERS (2008)

Junlan Yang, Dan Schonfeld, Chong Chen

Particle filters have been introduced as a powerful tool to estimate the posterior density of nonlinear systems. These filters are also capable of processing data online as required in many practical...

Models, Gaussian Mixture (2008)

Faisal I. Bashir, Ashfaq A. Khokhar, Dan Schonfeld

Abstract — Motion trajectories provide rich spatio-temporal information about an object’s activity. Developing scalable activity recognition algorithms based on this high dimensionality cue is an...

Object trajectory-based activity classification and recognition using hidden Markov models (2008)

Faisal I. Bashir, Ashfaq A. Khokhar, Dan Schonfeld, Senior Member, Senior Member

Abstract—Motion trajectories provide rich spatiotemporal information about an object’s activity. This paper presents novel classification algorithms for recognizing object activity using object...

Real-time motion trajectory-based indexing and retrieval of video sequences (2007)

Faisal I. Bashir, Student Member, Ashfaq A. Khokhar, Senior Member, Dan Schonfeld, Senior Member

Abstract—This paper presents a novel motion trajectory-based compact indexing and efficient retrieval mechanism for video sequences. Assuming trajectory information is already available, we...

Distributed Bayesian Multiple-Target Tracking in Crowded Environments Using Multiple Collaborative Cameras (2007)

Wei Qu, Dan Schonfeld, Magdi Mohamed

Multiple-target tracking has received tremendous attention due to its wide practical applicability in video processing and analysis applications. Most existing techniques, however, suffer from the...

Distributed Bayesian Multiple-Target Tracking in Crowded Environments Using Multiple Collaborative Cameras (2007)

Wei Qu, Dan Schonfeld, Magdi Mohamed

Multiple-target tracking has received tremendous attention due to its wide practical applicability in video processing and analysis applications. Most existing techniques, however, suffer from the...

Maximum-entropy expectationmaximization algorithm for image processing and sensor networks (2007)

Hunsop Hong, Student Member, Dan Schonfeld, Senior Member

Abstract—In this paper, we propose a maximum-entropy expectation-maximization (MEEM) algorithm. We use the proposed algorithm for density estimation. The maximum-entropy constraint is imposed for...

Fast object tracking using adaptive block matching (2005)

Karthik Hariharakrishnan, Dan Schonfeld, Senior Member

Abstract—We propose a fast object tracking algorithm that predicts the object contour using motion vector information. The segmentation step common in region-based tracking methods is avoided,...

A New Image Representation Algorithm Inspired by Image Submodality Models, Redundancy Reduction, and Learning in Biological Vision (2005)

Nikhil Balakrishnan, Karthik Hariharakrishnan, Dan Schonfeld, Senior Member

Abstract—We develop a new biologically motivated algorithm for representing natural images using successive projections into complementary subspaces. An image is first projected into an edge...

Real-time low-complexity adaptive approach for enhanced QoS and error resilience in MEPG-2 video transport over RTP networks (2005)

Bulent Cavusoglu, Dan Schonfeld, Senior Member, Rashid Ansari, Deepak Kumar Bal

Abstract—In this paper, the problems of redundancy allocation for providing effective error-resilience and service class distribution for enhanced quality of service (QoS) in real-time MPEG-2 video...

A Motion Trajectory Based Video Retrieval System Using Parallel Adaptive Self Organizing (2005)

Wei Qu, Faisal I. Bashir, Dan Graupe, Ashfaq Khokhar, Dan Schonfeld

Abstract — We present a novel motion trajectory based video retrieval system using parallel adaptive self organizing maps (PASOMs) in this paper. The motion trajectories are extracted from video...

Spatially-Variant Mathematical Morphology: A Geometry-Based Theory (2004)

Nidhal Bouaynaya, Mohammed Charif-chefchaouni, Dan Schonfeld

We present a general theory of spatially-variant mathematical morphology. Spatially-variant dilations and erosions are defined and their properties investigated. A kernel representation of a large...

Segmented trajectory based indexing and retrieval of video data (2003)

Faisal I. Bashir, Ashfaq A. Khokhur, Dan Schonfeld

In this paper. we present a novel principal component analysis (PCA) based approach towards modeling the object trajectory in a video clip. An eigenspace decomposition of high-dimensional trajectory...

Segmented trajectory based indexing and retrieval of video data (2003)

Faisal I. Bashir, Ashfaq A. Khokhar, Dan Schonfeld

In this paper, we present a novel principal component analysis (PCA) based approach towards modeling the object trajectory in a video clip. An eigenspace decomposition of highdimensional trajectory...

Video skimming and summarization based on principal component analysis (2001)

Dan Lelescu, Dan Schonfeld

Abstract. An increasing number of applications such as content-based multimedia retrieval in a distributed system and low-bitrate video communications, require the efficient processing and...

Adaptive Networking for Tele-Immersion (2001)

Jason Leigh, Oliver Yu, Dan Schonfeld, Rashid Ansari, Eric He, Atul Nayak, ...

Abstract. Tele-Immersive applications possess an unusually broad range of networking requirements. As high-speed and Quality of Service-enabled networks emerge, it will becoming more difficult for...

VORTEX: Video retrieval and tracking from compressed multimedia databases—multiple object tracking from MPEG-2 bitstream,” (Invited Paper (2000)

Dan Schonfeld, Dan Lelescu

Multimedia data are generally stored in compressed form in order to efficiently utilize the available storage facilities. Access to multimedia archives is thus dependent on our ability to browse...

Forward Error Correction for Multimedia and Teleimmersion Data Streams (2000)

Ray Fang, Dan Schonfeld, Rashid Ansari, Jason Leigh

Experimental results suggest that the quality of transmitting multimedia and Teleimmersion data streams over the Internet is affected by high packet loss rates. This makes it important to design...

VORTEX: Video retrieval and tracking from compressed multimedia databases—multiple object tracking from MPEG-2 bitstream,” (Invited Paper (2000)

Dan Schonfeld, Dan Lelescu

Multimedia data is generally stored in compressed form in order to e�ciently utilize the available storage facilities. Access to archives is dependent on our ability to browse compressed multimedia...

Object Recognition Based on Impulse Restoration Using the Expectation-Maximization Algorithm (1998)

Ahmad Abu-naser, Nikolas P. Galatsanos, Miles N. Wernick, Dan Schonfeld

It has recently been demonstrated that object recognition can be formulated as an imagerestoration problem. In this approach, which we term impulse restoration, the objective is to restore a delta...

A Fast Thresholded Linear Convolution Representation of [4] Morphological Operations (1994)

Branislav Kisaeanin, Dan Schonfeld

Abstract-In this correspondence, we present a fast thresholded linear convolution representation of morphological operations. The thresholded linear convolution representation of dilation and erosion...