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:
Apr. 10, 2007
Filed:
May. 25, 2005
Hsiang-chun Huang, Junghe, TW;
Chung-neng Wang, Kaohsiung, TW;
Ti-hao Chiang, Taipei, TW;
Hsueh-ming Hang, Hsinchu, TW;
Hsiang-Chun Huang, Junghe, TW;
Chung-Neng Wang, Kaohsiung, TW;
Ti-Hao Chiang, Taipei, TW;
Hsueh-Ming Hang, Hsinchu, TW;
National Chiao Tung University, Hsinchu, TW;
Abstract
A robust fine granularity scalability video encoding includes a base layer encoder and an enhancement layer encoder in which motion compensated difference images are generated by comparing an original image to predicted images at base layer and enhancement layer with motion compensation. Based on leaky and partial predictions, a high quality reference image is constructed at the enhancement layer to improve temporal prediction. In the construction of the high quality reference image, one parameter β controls the number of bitplanes of the enhancement layer difference coefficients used and another parameter α controls the amount of predictive leak. A spatial scalability module allows the processed pictures at the base layer and the enhancement layer to have identical or different spatial resolutions.