发明名称 |
PROCESSING METHOD AND SYSTEM OF DIGITAL PICTURE |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide an encoding method for reproducing an image of high picture quality by permitting a user to select picture quality and data quantity in multiple stages and adding data to compression data which can be decoded. SOLUTION: An original image is divided at every object area having prescribed correlation and the hierarchy structure of the object area is decided 62. The object area is plane-approximated 63 with more than one polygonal plane so that a luminance value and the errors of colors become within prescribed thresholds. A primary difference image is obtained 64 by obtaining a difference between the original image and the image which is plane- approximated. An nth order (n>=1) difference image is encoded, compressed 65 and the image which is plane-approximated and the encoded nth other difference image are stored 66. The (n+1)th order difference image is obtained 67 from a difference between the image obtained by expanding the compressed nth order difference image with the nth order difference image.</p> |
申请公布号 |
JPH0984002(A) |
申请公布日期 |
1997.03.28 |
申请号 |
JP19950228680 |
申请日期 |
1995.09.06 |
申请人 |
INTERNATL BUSINESS MACH CORP <IBM> |
发明人 |
ECHIGO TOMIO;MAEDA JUNJI;KO MASAKUNI;IOKA MIKIHIRO |
分类号 |
H04N11/04;G06T9/00;H03M7/30;H04N1/41;H04N19/00;H04N19/102;H04N19/17;H04N19/196;H04N19/20;H04N19/21;H04N19/36;H04N19/423;H04N19/50;H04N19/94;H04N19/96;(IPC1-7):H04N7/24 |
主分类号 |
H04N11/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|