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:
Aug. 27, 2013
Filed:
Jun. 13, 2012
Junlin LI, San Jose, CA (US);
Ghassan Alregib, Savannah, GA (US);
Dihong Tian, San Jose, CA (US);
Wen-hsiung Chen, Sunnyvale, CA (US);
Pi Sheng Chang, San Jose, CA (US);
Junlin Li, San Jose, CA (US);
Ghassan AlRegib, Savannah, GA (US);
Dihong Tian, San Jose, CA (US);
Wen-hsiung Chen, Sunnyvale, CA (US);
Pi Sheng Chang, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A coding method for an ordered series of quantized transform coefficients of a block of image data, including a context adaptive position coding process to encode the position of clusters of non-zero-valued coefficients, e.g., a multidimensional position coder that uses one of a plurality of code mappings selected according to at least one criterion including at least one context-based criterion, and an amplitude encoding process to encode any amplitudes remaining to be coded, the amplitude coding using one or a plurality of amplitude code mappings selected according to at least one criterion, including a context-based criterion. A context-based selection criterion means a criterion that during encoding is known or derivable from one or more previously encoded items of information. Also a coding apparatus, a decoding apparatus, a computer readable medium configured with instructions that when executed implement a coding method, and another medium for a decoding method.