Differential coding of motion vectors using the median of candid

Details Differential coding of motion vectors using the median of candid Differential coding of motion vectors using the median of candid

1995-09-27

1999-05-18

Tung, Bryan

Television

Bandwidth reduction system

Data rate reduction

348699, H04N7/32

Patent

active

059055359

ABSTRACT:
A process for differential coding of a motion vector associated with a macro-block, including the steps: of determining the components of the said motion vector, of determining a prediction vector, each component of which is equal to the median value of the corresponding components of at least three candidate motion vectors, a candidate motion vector being a vector associated with a previously coded macro-block, and of subtracting the components thus obtained from the components of the vector to be coded. Implementation of the process is included.

REFERENCES:
patent: 5386248 (1995-01-01), De Haan et al.
patent: 5557341 (1996-09-01), Weiss et al.
patent: 5576765 (1996-11-01), Cheney et al.
ICASSP-92, vol. 3, Mar. 23, 1992 pp. 545-548, XP00378989 P. Haskell et al. "Resynchronization Of Motion Compensated Video Affected By ATM Cell Loss".

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