METHOD AND SYSTEM FOR ENCODING DIGITAL IMAGE

Japanese Patent JP3640318

B2

PROBLEM TO BE SOLVED: To provide highly efficient data compression with simple conversion by dividing an image into plural picture element areas, obtaining the luminance values of the respective picture element areas and the parameter of a color, merging the plural picture element areas and generating a primary block candidate.
SOLUTION: Digital picture data is inputted to an image input means 11 and is divided into the plural picture element areas by a parameter making means 12. The luminance values and the parameter of the color are obtained on the respective picture element areas. A generation/classification means 13 merges the plural picture element areas and generates the primary block candidate and it is classified to one of the plural patterns. A linear approximation conversion part 14 groups the primary block candidate where the luminance value of the picture element area and the parameter of the color can linearly be approximated/converted as a primary block among the primary block candidates belonging to the same classification and a conversion coefficient is expressed by the parameter. Then, a secondary block is grouped and a multidimensional block parameter is finally obtained.

Tomio Echigo
Junji Maeda
Hong Kong
Mikihiro Ioka

JP22539095A

April 20, 2005

September 01, 1995

Click for automatic bibliography generation  

INTERNATIONAL BUSINESS MASCHINES CORPORATION

H04N11/04; G06T9/00; H03M7/30; H04N1/41; H04N19/593; H04N19/94; (IPC1-7): H04N11/04; H03M7/30; H04N1/41

JP5244435A
JP799646A

宮地悟史、富永英義,「画像の自己相似モデリングを利用した高解像度化に関する一検討」,画像電子学会研究会予稿,日本,画像電子学会,(1994年1月4日),vol.140th,p.13-16
川又政征,「多次元デイジタル信号処理に基づくフラクタル画像の符号化に関する研究」,旭硝子財団研究成果報告,日本,(1994年),p.405-411
川又政征、長久真樹、樋口龍雄,「反復変換理論符号化法の高速化に関する二、三の考察」,電気学会情報処理研究会資料,日本,電気学会,(1994年),vol.IP-94,No.26-35, p.41-50

Hiroshi Sakaguchi
Yoshihiro City

Previous Patent: TEXTURING COMPOSITION

Next Patent: PRODUCTION OF BENZAMIDE DERIVATIVE