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:
May. 28, 2013
Filed:
Oct. 19, 2009
Chi Keung Fong, Hong Kong, HK;
Wai Kuen Cham, Hong Kong, HK;
Ka Man Cheng, Hong Kong, HK;
Yu Liu, Hong Kong, HK;
Chi Keung Fong, Hong Kong, HK;
Wai Kuen Cham, Hong Kong, HK;
Ka Man Cheng, Hong Kong, HK;
Yu Liu, Hong Kong, HK;
Hong Kong Applied Science and Technology Research Institute Company Limited, Hong Kong Science Park, Shatin, New Territories, Hong Kong, CN;
Abstract
The invention relates to adjusting the quantization parameter in digital video coding. A shift value (QP Shift) is used to adjust the quantization parameter. The shift value is determined in a determining step. The video nature is determined and compared with a threshold in a comparing stepto adjust the shift value adaptively according to the frame type in an adjusting step. The shift value shifts the quantization parameter in a shifting step