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:
Mar. 26, 2013
Filed:
Oct. 10, 2008
Dae-hee Kim, Suwon-si, KR;
Dae-sung Cho, Seoul, KR;
Woong-il Choi, Hwaseong-si, KR;
Hyun-mun Kim, Seongnam-si, KR;
Dae-hee Kim, Suwon-si, KR;
Dae-sung Cho, Seoul, KR;
Woong-il Choi, Hwaseong-si, KR;
Hyun-mun Kim, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream formed with a base layer bitstream and an enhancement layer bitstream in order to provide forward compatibility, the scalable bitstream comprising a base layer bitstream including a base quantized level and a base quantization parameter corresponding to a base bit-depth, and an enhancement layer bitstream including a residue between an extended quantized level and a compensated quantized level that is predicted from the base quantized level, and additional quantization information for refining the difference between an extended bit-depth and the base bit-depth, wherein a process for improving image quality is applied to at least one of the base layer and the enhancement layer.