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. 18, 2002
Filed:
Jan. 19, 2000
Eriko Koda, Kawasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method, apparatus and computer program for detecting a scene change point in a moving picture which has been coded according to a moving-picture coding process. The moving picture coding process divides the processing picture into a plurality of pictures. Each picture is divided into a plurality of blocks each being compressed by an encoder. The encoder operates according to a selected one of three compression techniques, namely an intra-picture compression technique, a differential-picture compression technique or a skipped-block compression technique. The invention counts the number of blocks of each picture subjected to the compression techniques, records the counts as user data, and analyzes the counts stored in the user data in a decoding operation in order to detect a scene change point of the moving picture.