Performance enhancement of El.263 encoder based on zero coefficient prediction

Alice Yu, Ruby Lee, Michael Flynn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper; we describe several methods which can improve the performance of the baseline H.263 encoder: All of our improvements were implemented in software using the Telenor ~2.0 codec. We begin by presenting results of our optimization of the Telenor software, which reduced the computation time of the encoder by four rimes its original value. Next, we characterize individual parts of the encoder and observe how the distribution of computation time varies with input sequence and motion search type. Based on our characterization, we then propose two methods to reduce computation in the motion estimator; discrete cosine transform, and quantizer; using a technique that detects all-zero coefficients in macrobIocks. Our combined results ultimately reduces the computational time of the original Telenor encoder by four to nine times its original value.

Original languageEnglish (US)
Title of host publicationProceedings of the 5th ACM International Conference on Multimedia, MULTIMEDIA 1997
PublisherAssociation for Computing Machinery, Inc
Pages21-29
Number of pages9
ISBN (Electronic)0897919912, 9780897919913
DOIs
StatePublished - Nov 1 1997
Externally publishedYes
Event5th ACM International Conference on Multimedia, MULTIMEDIA 1997 - Seattle, United States
Duration: Nov 9 1997Nov 13 1997

Publication series

NameProceedings of the 5th ACM International Conference on Multimedia, MULTIMEDIA 1997

Other

Other5th ACM International Conference on Multimedia, MULTIMEDIA 1997
CountryUnited States
CitySeattle
Period11/9/9711/13/97

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design
  • Software

Fingerprint Dive into the research topics of 'Performance enhancement of El.263 encoder based on zero coefficient prediction'. Together they form a unique fingerprint.

  • Cite this

    Yu, A., Lee, R., & Flynn, M. (1997). Performance enhancement of El.263 encoder based on zero coefficient prediction. In Proceedings of the 5th ACM International Conference on Multimedia, MULTIMEDIA 1997 (pp. 21-29). (Proceedings of the 5th ACM International Conference on Multimedia, MULTIMEDIA 1997). Association for Computing Machinery, Inc. https://doi.org/10.1145/266180.266326