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:
Dec. 13, 2016
Filed:
Sep. 05, 2008
Keiichi Chono, Tokyo, JP;
Yoshihiro Miyamoto, Tokyo, JP;
Keiichi Chono, Tokyo, JP;
Yoshihiro Miyamoto, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
Intended is to obtain a video encoding device, a video encoding method, and a video encoding program which enable to prevent reduction in compression efficiency caused by drastic changes in symbol occurrence probabilities in context adaptive coding, and a video decoding device, a video decoding method and a decoding program corresponding thereto. The video datais input into video encoding device on a macroblock basis, and after quantization, the PCM determination unitdetermines whether the coded datais PCM mode or not. Even when the coded datais PCM mode, the context updating unitexecutes context updating processing so as to improve efficiency of binary arithmetic coding. According to the determination of PCM mode or non PCM mode, the third switchsupplies either binary arithmetic coding output or PCM coding output as its output data.