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:
Jan. 02, 2001
Filed:
Aug. 25, 1998
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In detecting a motion vector, sub-sampling is more selectively and adaptively set in terms of power consumption and detection performance. A correlation calculation section includes a plurality of correlation calculation blocks, each calculating correlation between a block to be coded and an associated candidate block within a search range. Each correlation calculation block is supplied with a different group of pixels of the block to be coded and an associated group of pixels of the associated candidate block, and calculates the correlation between the two groups of pixels supplied. A control section selectively sets sub-sampling in accordance with image feature information such as the frequency components of the block to be coded or operating state information such as the power left in a battery. And, in accordance with the setting of sub-sampling, the control section selectively operates part or all of the correlation calculation blocks of the correlation calculation section.