Scalable inter-contour coding method and apparatus

Details Scalable inter-contour coding method and apparatus Scalable inter-contour coding method and apparatus

1997-08-07

2000-08-01

Lee, Young

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348699, 382243, H04N 712

Patent

active

060977566

ABSTRACT:
A method for scalably inter-contour coding a video signal including a previous and a current frames, wherein each of the previous and the current frames contains a contor, first generates a predicted contour by motion estimating and compensating a previous base layer, widens the predicted contour by a predetermined threshold D.sub.max (j), generates (j)th primary and secondary vertices, and reconstructs a current base layer, j being 0. Thereafter, the method widens the predicted contour by the predetermined threshold D.sub.max (j+1), generates (j+1)st primary and secondary vertices, and updates the (j)th primary and secondary vertices. Then, the (j)th primary and secondary vertices are encoded, and encoded primary and secondary vertex information is formatted in a predetermined way. Finally, the value of j is increased by 1, and the process from widening the predicted contour by D.sub.max (j+1) to formatting the encoded primary and secondary vertex infromation are repeated until j becomes N, N being a positive integer.

REFERENCES:
patent: 5748789 (1998-05-01), Lee et al.
patent: 5929917 (1999-07-01), Kim

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