AN ASYMMETRIC LOSSLESS IMAGE COMPRESSION TECHNIQUE (2008)
Lossless image compression is often required in situa-tions where compression is done once and decompres-sion is to be performed a multiple number of times. Since compression is performed only once,...
Grammar-based distance in progressive multiple sequence alignment (2008)
Russell, David J, Otu, Hasan H, Sayood, Khalid
Abstract Background We propose a multiple sequence alignment (MSA) algorithm and compare the alignment-quality and execution-time of the proposed algorithm with that of existing algorithms. The...
A Low Complexity Audio Coding Scheme for Wideband Audio* (2008)
Ram M. Peddibhotla, Robert C. Maher, Khalid Sayood
Digerential encoding is a well known low complez-ily coding technique. Its use in the coding of wideband audio is limited by its inability to follow rapid changes in the signal. This is a serious...
The Average Mutual Information Profile as a Genomic Signature (2008)
Bauer, Mark, Schuster, Sheldon M, Sayood, Khalid
Abstract Background Occult organizational structures in DNA sequences may hold the key to understanding functional and evolutionary aspects of the DNA molecule. Such structures can also provide the...
The Average Mutual Information Profile as a Genomic Signature (2008)
Bauer, Mark, Schuster, Sheldon, Sayood, Khalid
Background: Occult organizational structures in DNA sequences may hold the key to understanding functional and evolutionary aspects of the DNA molecule. Such structures can also provide the means for...
Grammar-Based Distance in Progressive Multiple Sequence Alignment (2008)
Russell, David, Otu, Hasan H, Sayood, Khalid
Background: We propose a multiple sequence alignment (MSA) algorithm and compare the alignment-quality and execution-time of the proposed algorithm with that of existing algorithms. The proposed...
Larson, Marilynn A., Bressani, Rafael, Sayood, Khalid, Corn, Jacob E., Berger, James M., Griep, Mark A., ...
The placement of the extreme thermophile Aquifex aeolicus in the bacterial phylogenetic tree has evoked much controversy. We investigated whether adaptations for growth at high temperatures would...
A new sequence distance measure for phylogenetic tree construction (2003)
Motivation: Most existing approaches for phylogenetic inference use multiple alignment of sequences and assume some sort of an evolutionary model. The multiple alignment strategy does not work for...
A divide-and-conquer approach to fragment assembly (2003)
Motivation: One of the major problems in DNA sequencing is assembling the fragments obtained by shotgun sequencing. Most existing fragment assembly techniques follow the overlap—layout—consensus...
A progressive Lossless/Near-Lossless image compression algorithm (2002)
Ismail Avcıbas, Nasir Memon, Bülent Sankur, Senior Member, Khalid Sayood
Abstract—A novel image compression technique is presented that incorporates progressive transmission and near-lossless compression in a single framework. Experimental performance of the proposed...
Statistical evaluation of image quality measures (2002)
İsmail Avcıbaş, Bülent Sankur, Khalid Sayood
In this work we categorize comprehensively image quality measures, extend measures defined for gray scale images to their multispectral case, and propose novel image quality measures. They are...
Robust Mobile Multimedia Communications (1998)
Perez, Lance C., Hoffman, Michael W., Sayood, Khalid
This report describes the final results obtained on this project. We detail the technical contributions made under the support of this grant. The technical contributions are in the two focus areas:...
A context-based, adaptive, lossless/nearly-lossless coding scheme for continuous-tone images (1995)
Xiaolin Wu, Nasir Memon, Khalid Sayood
We propose a context-based, adaptive, predictive coding system for lossless/nearly-lossless compression of continuous-tone images. The system provides better compression than other lossless image...
Adaptive communication systems / (1979)
Thesis (M.S.)--University of Rochester. College of Engineering and Applied Science. Dept. of Electrical Engineering.
Larson, Marilynn A., Bressani, Rafael, Sayood, Khalid, Corn, Jacob E., Berger, James M., Griep, Mark A., ...
The placement of the extreme thermophile Aquifex aeolicus in the bacterial phylogenetic tree has evoked much controversy. We investigated whether adaptations for growth at high temperatures would...