Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

2011-03-29

2011-03-29

Ghayour, Mohammad H (Department: 2611)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240010, C348S384100, C348S394100, C348S402100

Reexamination Certificate

active

07916785

ABSTRACT:
This invention provides a coding method and apparatus capable of increasing the coding efficiency. According to this invention, an image processing apparatus which performs predictive coding using image data of a different frame as a reference picture includes a prediction unit which performs motion compensated prediction for each reference picture in at least one reference list formed from a set of reference pictures for prediction, a reference list update unit which updates the reference list by adding or deleting the reference picture, a reference counter unit which measures, for each reference picture, a count at which the reference picture is used for motion compensation predictive coding, and an update picture determination unit which determines a reference picture to be updated in the reference list by using the measurement result of the reference counter unit.

REFERENCES:
patent: 5943469 (1999-08-01), Enokida
patent: 6775326 (2004-08-01), Sekiguchi et al.
patent: 2004-088801 (2004-03-01), None
patent: 2005-005844 (2005-01-01), None

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