Picture coding apparatus and method thereof

Details Picture coding apparatus and method thereof Picture coding apparatus and method thereof

1999-05-17

2000-08-22

Couso, Jose L.

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

G06K 936

Patent

active

061084514

ABSTRACT:
In a picture coding apparatus and a picture coding method, when a picture data is hierarchically coded, compression efficiency can be improved, and the deterioration of picture quality can be reduced. When a picture data is hierarchically coded by utilizing a recursive hierarchical representation, adaptive division of block is performed corresponding to the characteristic of the picture data and then coding is performed, and thus obtained hierarchical coded data is transmitted, so that the block of the lower hierarchy can be adaptively divided, thereby the information quantity such as a plane portion of picture can be reduced.

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