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. 14, 2016
Filed:
Oct. 29, 2010
Decoding method, decoding apparatus, coding method, and coding apparatus using a quantization matrix
Chong Soon Lim, Singapore, SG;
Min LI, Singapore, SG;
Hai Wei Sun, Singapore, SG;
Youji Shibahara, Osaka, JP;
Takahiro Nishi, Nara, JP;
Chong Soon Lim, Singapore, SG;
Min Li, Singapore, SG;
Hai Wei Sun, Singapore, SG;
Youji Shibahara, Osaka, JP;
Takahiro Nishi, Nara, JP;
SUN PATENT TRUST, New York, NY (US);
Abstract
A decoding method includes: obtaining a plurality of quantization parameter sets from a header of a coded stream; parsing an identifier from a header of a coded picture included in the coded stream; selecting at least one quantization parameter set from among the plurality of quantization parameter sets, based on the parsed identifier; determining whether a flag parsed from the header of the coded picture has a predetermined value; generating a new quantization matrix from another quantization matrix when the flag has the predetermined value; decoding the coded picture by inversely quantizing the coded picture using the generated new quantization matrix; and decoding the coded picture by inversely quantizing the coded picture using a quantization matrix included in the selected quantization parameter set when the flag does not have the predetermined value.