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. 25, 2006
Filed:
Feb. 25, 2002
Kazuo Sugimoto, Tokyo, JP;
Shinichi Kuroda, Tokyo, JP;
Fuminobu Ogawa, Tokyo, JP;
Kohtaro Asai, Tokyo, JP;
Kazuo Sugimoto, Tokyo, JP;
Shinichi Kuroda, Tokyo, JP;
Fuminobu Ogawa, Tokyo, JP;
Kohtaro Asai, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A coded stream analyzer () variable-length decodes an incoming coded stream and extracts encoding parameters for each macroblock, such as an encoding mode, DCT coefficient values, the amount of codes of DCT coefficients, the amount of codes of each macroblock, and a motion vector, from the coded stream. An effective macroblock identification unit () then identifies macroblocks each of which can be contained in a moving object as an effective macroblock by using one or more encoding parameters extracted by the coded stream analyzer (). A moving object determination unit () determines whether or not each of the one or more effective macroblocks identified by the effective macroblock identification unit () is contained in a moving object by counting the number of effective macroblocks which are directly adjacent to each of the one or more effective macroblocks or indirectly adjacent to each of the one or more effective macroblocks via one or more other effective macroblocks, and then comparing the number of adjacent effective macroblocks with a predetermined threshold value.