Scene-by-scene digital video processing
AssigneeInlet Technologies, Inc.
InventorsScott Labrozzi, James Zimmerman, Philip Jacobsen
Life of this patent
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Abstract
A scene-by-scene (S×S) compression process enables improved visual quality within applicable compression constraints to be obtained. A compressed video signal is analyzed, generating compression statistics. A scene of the video signal is identified for re-compression and a maximum target bit rate for re-compressing the identified scene is determined based on the compression statistics and applicable compression constraints. A target bit rate for re-compressing the scene is selected based on the maximum target bit rate, and compression parameters for the scene are determined based on the scene's compression statistics and the selected target bit rate.
Claims29
A method of processing compressed video signal that includes a succession of image frames, the method comprising:
- analyzing the compressed video signal to generate one or more compression statistics;
- identifying a scene of the compressed video signal for re-encoding based on at least one of the compressed video signal and the compression statistics;
- selecting a target bit rate for re-encoding the identified scene based on the compression statistics and applicable compression constraints;
- and
- determining compression parameters for the identified scene based on the identified scene's compression statistics and the selected target bit rate.
(canceled)
(canceled)
The method of claim 28, wherein the maximum target bit rate is based on the number of frames in the scene, an initial buffer fullness, and a maximum final buffer fullness.
An article of manufacture having computer-readable instructions embodied therein for processing compressed video signal that includes a succession of image frames, the article of manufacture comprising:
- computer-readable instructions for analyzing the compressed video signal to generate one or more compression statistics;
- computer-readable instructions for identifying a scene of the compressed video signal for re-encoding based on at least one of the compressed video signal and the compression statistics;
- computer-readable instructions for selecting a target bit rate for re-encoding the identified scene based on the compression statistics and applicable compression constraints;
- and
- computer-readable instructions for determining compression parameters for the identified scene based on the identified scene's compression statistics and the selected target bit rate.
(canceled)
The article of manufacture of claim 29, wherein the maximum target bit rate is based on the number of frames in the scene, an initial buffer fullness, and a maximum final buffer fullness.
Dependencies are inferred from the claim text.