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:
Jul. 05, 2011
Filed:
Jul. 08, 2004
Xiangyang Ji, Beijing, CN;
Wen Gao, Beijing, CN;
Siwei MA, Beijing, CN;
Debin Zhao, Beijing, CN;
Yan LU, Beijing, CN;
Xiangyang Ji, Beijing, CN;
Wen Gao, Beijing, CN;
Siwei Ma, Beijing, CN;
Debin Zhao, Beijing, CN;
Yan Lu, Beijing, CN;
Abstract
A 'rounding to zero' method can maintain the exact motion vector and can also be achieved by the method without division so as to improve the precision of calculating the motion vector, embody the motion of the object in video more factually, and obtain the more accurate motion vector prediction. Combining with the forward prediction coding and the backward prediction coding, the present invention realizes a new prediction coding mode, which can guarantee the high efficiency of coding in direct mode as well as is convenient for hardware realization, and gains the same effect as the conventional B frame coding.