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:
Dec. 05, 2000
Filed:
Feb. 16, 1999
Neal Margulis, Woodside, CA (US);
Chad Fogg, Seattle, WA (US);
Pixonics LLC, Woodside, CA (US);
Abstract
An image processing system using bitstream information for enhancing visual display quality. The processing system retains I frames and some P or B frames from a standard MPEG-2 bitstream, and stores the information across multiple Groups of Pictures (GOPs). The system uses prediction block information in conjunction with detected object edges and bitstream vector information to analyze object optical flow and to reconstruct high quality image frames. The system can also utilize supplemental bitstream information such as layer coding, instructional cues, and image key meta data to further improve the quality of the image frames and for special system functions. When an input image does not include MPEG-2 motion vector bitstream information, the system uses techniques such as optical flow, block matching, or Pel-recursion to estimate motion that tracks the image object motion.