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Patent Searching and Data


Title:
IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2010128618
Kind Code:
A
Abstract:

To provide a technique for more efficiently, optimally deciding the shape and number of meshes when performing mesh coding for an object having a gradation, and to provide a technique for setting representative points to minimize the mesh distortion.

A mesh generation unit 102 divides an object area into a plurality of meshes and obtains position information, gradient information, and color information for each vertex of a mesh. A mesh control unit 103 decides unnecessary vertices based on the difference between color information of each vertex and color information in the object area that corresponds to the vertex. An optimization unit 104 obtains the position information, gradient information and color information of necessary vertices to minimize the difference between color information of each necessary vertex other than the unnecessary vertices and color information at a position in the object area that corresponds to the necessary vertex.


Inventors:
KITAGO MASATERU
Application Number:
JP2008300183A
Publication Date:
June 10, 2010
Filing Date:
November 25, 2008
Export Citation:
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Assignee:
CANON KK
International Classes:
G06T1/00; G06T15/00
Foreign References:
US20080278479A12008-11-13
Other References:
JPN6013006920; Laurent DEMARET et al.: 'Image Compression by Linear Splines over Adaptive Triangulations' Online Document , 2006, p1-23
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu