发明名称 |
Method for image data coding |
摘要 |
To efficiently compress image data, the image data is divided into rectangular blocks of non-equal length in a hierarchal structure in accordance with a brightness change, and is encoded into tree-structure data for each of the divided blocks so that the mean distortion of the image data inside each block does not exceed an allowable value.
|
申请公布号 |
US4831659(A) |
申请公布日期 |
1989.05.16 |
申请号 |
US19880208851 |
申请日期 |
1988.06.07 |
申请人 |
HITACHI, LTD. |
发明人 |
MIYAOKA, SHINICHIRO;SASAKI, RYOICHI;SHIRAISHI, TAKAYOSHI |
分类号 |
G06T9/00;G06T9/40;H04N1/41;H04N1/415;H04N7/26 |
主分类号 |
G06T9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|