Method and system for two-pass video encoding using sliding...

Details Method and system for two-pass video encoding using sliding... Method and system for two-pass video encoding using sliding...

2007-11-27

2007-11-27

Rao, Andy S. (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240050

Reexamination Certificate

active

10828199

ABSTRACT:
A method for two-pass video encoding using sliding windows. The method receives a video sequence (VS), selects a portion of frames in the VS from the beginning as an analysis window, encodes each frame in the analysis window to acquire multiple statistical features, such as a bitrate to each frame in the analysis window, the quantization scale or complexity of the frame, redistributes the bitrate to each frame in the analysis window according to the statistical features, encodes the frames in the analysis window occurring between the beginning and an out point according to the redistributed bitrates, and selects a portion of frames in the VS from the next frame of the out point as a new analysis window if the VS is not completely encoded.

REFERENCES:
patent: 6747991 (2004-06-01), Hemy et al.
patent: 6925120 (2005-08-01), Zhang et al.
patent: 7099389 (2006-08-01), Yu et al.
Natwichai et al., Department of Computer Engineering, p. 1-6.
Mohsenian et al., IBM Journal, Jul. 4, 1999, vol. 43 No. 4 p. 489-492.

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