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:
May. 07, 2013
Filed:
Nov. 23, 2010
I-hsien Lee, Hsinchu, TW;
Yu-min Wu, Tainan, TW;
Wen-hao Chung, Taipei County, TW;
Industrial Technology Institute, Hsinchu, TW;
Abstract
An intra-prediction mode optimization method and image compression method/device are disclosed. To properly determine an intra-prediction mode for a target block of an image, a control block is selected from reference blocks of the target block, and an intra-prediction mode adopted in the control block is regarded as a control mode. Assuming that the target block is encoded according to the control mode as well, the prediction efficiency of the target and control blocks is assessed. When the intra-prediction efficiency, under the control mode, of the target block is better than that of the control block, the control mode is determined to be the intra-prediction mode of the target block and an intra-prediction pattern of the target block can be obtained. Otherwise, another one of the reference blocks is selected to be the control block and the control mode is refreshed, to repeat the intra-prediction efficiency assessment.