Title :
Novel subspace distortion measurement for efficient implementation of image vector quantiser
Author :
Po, Lai-Man ; Chan, C.-K.
Author_Institution :
Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon Tong, Hong Kong
fDate :
3/29/1990 12:00:00 AM
Abstract :
An efficient distortion measure based on a novel subspace is proposed for 4*4 image mean residual vector quantisers (MRVQ). The dimensionality of the coder distortion measure is reduced from 16 to 4, maintaining the visual image quality. The computation complexity and memory requirements of the quantiser are significantly reduced.
Keywords :
computational complexity; encoding; picture processing; coder distortion measure; computation complexity; dimensionality reduction; image vector quantiser; mean residual vector quantisers; memory requirements; subspace distortion measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900312
