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An Image Scanning Method with Selective Activation of Tree Structure
Junichi AKITA Kunihiro ASADA
IEICE TRANSACTIONS on Electronics
Publication Date: 1997/07/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on New Concept Device and Novel Architecture LSIs)
Category: Multi Processors
image scan, tree structure, selective activation, automaton, image encoding,
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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.