System and method for automatic zoom
AssigneeGeneral Instrument Corporation
InventorLawrence Burke
Life of this patent
Estimating the term…
Abstract
A system and method for automatically zooming “in” and “out” a video content stream to adjust for Ratio Mismatches is disclosed. The present invention is particularly applicable to 4:3 video content delivered in a 16:9 video content stream. The present invention scans for the presence of Pillar Bars. When Pillar Bars are detected by the present invention, after waiting a pre-determined period to confirm the presence and size of the Pillar Bars, the present invention initiates a slow stretching the video content stream to eliminate the Pillar Bars. When the video content stream changes back to without Pillar Bars, the present invention initiates a slow zooming out to a full pixel representation of the video content stream.
Claims28
A method for automatic zooming a video content stream, said method comprising:
- (a) defining an instance of a video content stream into a matrix of quadrants;
- (b) measuring a characteristic in each quadrant of said matrix of said instance;
- and
- (c) determining quadrants wherein said characteristic is in a steady state condition.
A system for automatic zooming a video content stream, said system comprising:
- (a) a matrix component, said matrix component defining an instance of a video content stream into a matrix of quadrants;
- (b) a measuring component, said measuring component measuring a characteristic in each quadrant of said matrix of quadrants of said instance;
- and
- (c) a determining component, said determining component determining quadrants where said characteristic is in a steady state condition.
Dependencies are inferred from the claim text.