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:
Jun. 26, 2007
Filed:
May. 08, 2003
Tadashi Ohira, Kanagawa, JP;
Tadashi Ohira, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A motion vector search apparatus and method that search for inter-frame motion vectors of motion pictures are provided. The motion vector search apparatus and method involve: inputting a search target frame to be coded; inputting as a reference frame a frame on which a motion vector search has been performed; by using each of a plurality of specific blocks set within the search target frame and each corresponding one of reference blocks set within the reference frame, performing a block matching for each of the specific blocks within a predetermined range of the reference frame; determining a search pattern for a motion vector for the entire frame according to block matching results for the plurality of specific blocks; by using the search pattern determined, executing a block matching in predetermined units of blocks on the inputted search target frame to be encoded; and generating motion vectors.