Rankings
Publications
Search Publications
Cited-By Search
Sources
Publishers
Scholars
Scholars
Top Cited Scholars
Organizations
About
Login
Register
Home
Publications
A Comparison Of Hardware Implementations Of The Hadamard Transform For Real-Time Image Coding
Home
Publications
A Comparison Of Hardware Implementations Of The Hadamard Transform For Real-Time Image Coding
A Comparison Of Hardware Implementations Of The Hadamard Transform For Real-Time Image Coding
SN
Stephen C. Noble
Stephen C. Noble
Publisher Website
Google Scholar
Add to library
Cite
Download
Share
Download
30 October 1975
proceedings article
Published by
SPIE-Intl Soc Optical Eng
Vol. 66
,
207-211
https://doi.org/10.1117/12.965365
Abstract
Several different hardware configurations for implementing the Hadamard transform in real-time are discussed. The discussion is referenced to a 64 point (8 x 8) transform that is used in image coding for bandwidth reduction. A successive implementation of two 8 point transformations with intermediate random access memory using the straight forward N2 computation is compared to implementations of the Fast Hadamard Transform (FHT). The speed of computing transform coefficients is compared to the hardware requirements of the various techniques. The relationship between computational speed and the resolution and frame rate of television imagery that may be transform encoded using the different methods is illustrated. It is shown that for picture element (pixel) rates up to 5 MHz the N2 computation is the more economical to implement.© (1975) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Keywords
DATA STORAGE
IMAGE COMPRESSION
COMPUTER HARDWARE
All Articles
Open Access
Cited by 2 articles