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. 23, 2010
Filed:
May. 01, 2008
Kaixuan Mao, Fremont, CA (US);
Yushan Huang, Hangzhou, CN;
Donghui Wu, Fremont, CA (US);
Anding Zhu, Hangzhou, CN;
Lingxiang Zhou, Fremont, CA (US);
Kaixuan Mao, Fremont, CA (US);
Yushan Huang, Hangzhou, CN;
Donghui Wu, Fremont, CA (US);
Anding Zhu, Hangzhou, CN;
Lingxiang Zhou, Fremont, CA (US);
ArcSoft, Inc., Fremont, CA (US);
Abstract
A method is provided for processing minimum coded units (MCUs) in a Joint Photographic Expert Group (JPEG) bit stream representing an image. A data structure is generated for storing MCU block numbers, corresponding MCU block coordinates, and corresponding MCU block editing lists. When an editing operation to the image is received, the editing operation is saved to a group of the MCU block editing lists of a group of the MCUs affected by the editing operation. Later the MCUs are retrieved from the JPEG bit stream one at a time and then processed according to the editing operations in the corresponding MCU blocking editing lists.