Arithmetic precision for perspective transform in sprite decoding of MPEG-4

A. R. Dasu, S. Raghavan, N. C. Raghavendra, Sethuraman Panchanathan

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

A method of implementing the perspective transform is presented as specified in the MPEG-4 standards using 32-bit fixed point reduced precision calculations instead of using 64-bit floating point full precision operators. The implementation of the perspective transforms was achieved by removing some redundant calculations and truncating the numerator and denominator terms of the transform without loss of accuracy. The procedures can be implemented either using software routines or specialized hardwares.

Original languageEnglish (US)
Pages (from-to)138-145
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3970
StatePublished - Jan 1 2000
EventProceedings of the Media Processors 2000 - San Jose, CA, USA
Duration: Jan 27 2000Jan 28 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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