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:
Dec. 16, 2014
Filed:
Jul. 15, 2014
Huawei Technologies Co., Ltd., Shenzhen, Guangdong, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The present invention provides a multi-level bidirectional motion estimation method and device searching for matched blocks in a current frame and a previous frame respectively by using M1×M1 blocks of a to-be-interpolated frame as a mirror center, where the first to-be-determined matched block pair is a pair of matched blocks with a minimum sum of binary absolute difference SHAD value among all pairs of matched blocks searched out in the current frame and the previous frame; and if determined that the SHAD value of the first to-be-determined matched block pair is greater than or equal to an SHAD threshold, splitting the M1×M1 blocks into M2×M2 blocks, and searching for matched blocks again in the current frame and the previous frame respectively by using the M2×M2 blocks of the to-be-interpolated frame as a mirror center. Therefore, accuracy of motion estimation can be improved effectively, and image quality can be improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile