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Proceedings Paper

Arithmetic precision for perspective transform in sprite decoding of MPEG-4
Author(s): Aravind R. Dasu; Subramanian Raghavan; Nagaraj C. Raghavendra; Sethuraman Panchanathan
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Paper Abstract

This paper presents a method of implementing the perspective transform as specified in the MPEG-4 standard using 32-bit fixed-point reduced precision calculations instead of using 64-bit floating-point full precision operators. We achieve this by removing some redundant calculations and truncating the numerator and denominator terms of the transform without loss of accuracy.

Paper Details

Date Published: 29 December 1999
PDF: 8 pages
Proc. SPIE 3970, Media Processors 2000, (29 December 1999); doi: 10.1117/12.375237
Show Author Affiliations
Aravind R. Dasu, Arizona State Univ. (United States)
Subramanian Raghavan, Motorola (United States)
Nagaraj C. Raghavendra, Arizona State Univ. (United States)
Sethuraman Panchanathan, Arizona State Univ. (United States)

Published in SPIE Proceedings Vol. 3970:
Media Processors 2000
Sethuraman Panchanathan; V. Michael Bove; Subramania I. Sudharsanan, Editor(s)

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