An Image Scanning Method with Selective Activation of Tree Structure

Junichi AKITA  Kunihiro ASADA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E80-C   No.7   pp.956-961
Publication Date: 1997/07/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on New Concept Device and Novel Architecture LSIs)
Category: Multi Processors
Keyword: 
image scan,  tree structure,  selective activation,  automaton,  image encoding,  

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Summary: 
We propose a new scanning method for image signals using a tree structure of automata. The tree is scanned selectively along the signal path for realizing both lower power consumption and a kind of image compression by skipping nonactive elements. We designed the node automata along with photo-detectors of 3232 in a 7.2 mm7.2 mm chip using a 1.5µm CMOS technology. We demonstrate applications of the tree structure using its feature of selective activation; a moving picture compression using inter-frame difference, an adaptive resolution scan like human eyesight and a motion compensation as examples.