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:
Mar. 31, 2009
Filed:
May. 27, 2008
Charles E. Boice, Endicott, NY (US);
Krishna C. Ratakonda, Yorktown Heights, NY (US);
Joseph G. Schaefer, Berkshire, NY (US);
Joseph H. Underwood, Apalachin, NY (US);
Charles E. Boice, Endicott, NY (US);
Krishna C. Ratakonda, Yorktown Heights, NY (US);
Joseph G. Schaefer, Berkshire, NY (US);
Joseph H. Underwood, Apalachin, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An encode control strategy is provided for variable bit rate encoding of a sequence of video frames in a single pass. The control strategy includes determining whether a video frame has a complexity level statistically outside a defined range from a complexity level of at least one preceding frame of the sequence of video frames, and if so, determining a new average bit rate target for the video frame. The new average bit rate for the video frame is determined employing at least one of spatial complexity and temporal complexity of the video frame. The new average bit rate target for the video frame is used to set frame level bit rate control parameter(s), and the video frame is encoded using the set frame level bit rate control parameter(s).