Title :
Fast search methods for vector lookup in vector quantisers
Author :
Wilton, A.P. ; Carpenter, G.F.
Author_Institution :
Dept. of Electron. Eng. & Appl. Phys., Aston Univ., Birmingham, UK
Abstract :
A substantial reduction in the time taken to look up a source vector in a vector codebook is achieved with a small extra distortion by searching only a subset of the codebook preselected according to the Euclidean magnitude of the vectors.
Keywords :
image coding; vector quantisation; Euclidean magnitude; distortion; image pixel block statistics; search methods; source vector; vector codebook; vector lookup; vector quantisers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921487
