The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2008
Filed:
Jul. 14, 2003
Toshiyuki Takahashi, Tokyo, JP;
Masayuki Yoshida, Tokyo, JP;
Toshiyuki Takahashi, Tokyo, JP;
Masayuki Yoshida, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Even in the case of coding the input image by dividing into tiles, a fine image quality adjustment is possible based on the characteristic of each tile. The input image signal is transformed to the coded data through the tile dividing unit, the wavelet transforming unit, and the entropy coding unit, and is stored in the code memory. In parallel to this processing, the distortion calculating unitcalculates the distortion in each coding pass of each code block, and stores it in the distortion memory. On the other hand, the complex tile deciding unitdecides whether a particular tile is the complex tile or not. The tile classifying memorystores the decision output. A distortion data outputted from the distortion memoryis outputted to the multiplier, the multipliermultiplies the distortion data by the weight coefficient selected by the weight coefficient selecting unit. The weighted distortion of each coding pass is output to the rate controlling unit, the rate controlling unitexecutes code amount control of coded data.