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

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

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

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

Computer Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

5 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 language	English (US)
Pages (from-to)	138-145
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3970
State	Published - Jan 1 2000
Event	Proceedings of the Media Processors 2000 - San Jose, CA, USA Duration: Jan 27 2000 → Jan 28 2000

ASJC Scopus subject areas

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

Cite this

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AU - Dasu, A. R.

AU - Raghavan, S.

AU - Raghavendra, N. C.

AU - Panchanathan, Sethuraman

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N2 - 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.

AB - 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.

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AN - SCOPUS:0033883863

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SP - 138

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Proceedings of the Media Processors 2000

Y2 - 27 January 2000 through 28 January 2000

ER -

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

Abstract

ASJC Scopus subject areas

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