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Motion coding of image primitives |
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| Authors: | Shu Zhang Minqun Liang John A Robinson Glenn L Greig |
| Institution: | a RDM Corporation, 608 Weber Street North, Waterloo, Ontario, Canada N2V 1K4 b BNR, P.O. Box 3511, Station C, Ottawa, Ontario, Canada, K1Y 4H7 c Department of Systems Design Engineering, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1 |
| Abstract: | We introduce an algorithm for matching stationary or moving image primitive lines between adjacent frames of a video sequence. Starting from local measures of proximity and similarity of shape, the algorithm computes the distance between pairs of primitives. It has strategies for dealing with broken lines and various kinds of connections between lines. The output of the algorithm is used to control a motion coding system, where only unmatched threads need be transmitted. The system can function in a simple conditional replenishment mode, or with motion compensation. Experimental results are reported showing an improvement of compression rate of 2:1 between intraframe primitivebased coding and motion-compensated primitive-based coding. |
| Keywords: | Image primitives “second generation” coding line tracking low data-rate video |
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