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:
Mar. 20, 2007
Filed:
Jun. 24, 2003
Lianhuan Xiong, Shenzhen, CN;
Zhen Chen, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Hongyuan Wang, Shenzhen, CN;
Lianhuan Xiong, Shenzhen, CN;
Zhen Chen, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Hongyuan Wang, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for pre-suppress noise of an image at least includes the following steps: detecting whether the currently processed DCT coefficient value is equal to or less than a corresponding threshold used for this time during quantizing DCT (Discrete Cosine Transform) coefficients of a CIF (Common Intermediate Format) image blocks in sequence, if it is, setting the DCT coefficient to zero, then increasing the threshold of this time to be used as a threshold of next time for the DCT coefficient processing, otherwise recovering the threshold used for this time to a predetermined initial threshold, which will be used as the next time threshold for the next processing of DCT coefficient; detecting whether the increased threshold is greater than a predetermined upper limit of a threshold, if it is, substituting the increased threshold with the predetermined upper limit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile