Method and apparatus for effecting video transitions
AssigneeMedia 100 Inc.
InventorBruce Allan Foss
Life of this patent
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Abstract
Combining first and second video streams into a combined output video stream by inputting a first transition proximity map listing proximity values for pixels in a video frame made up of lines of pixels, each proximity value indicating a distance from a pixel to a video transition, applying a mapping function to convert each proximity value to a key value indicating the relative amount of the first and second video stream to be included in a combined output video stream, and combining pixel values of the first and second video streams based upon respective key values.
Claims9
A method of combining first and second video streams into a combined output video stream comprising
- inputting a first transition proximity map listing proximity values for pixels in a video frame made up of lines of pixels, each said proximity value indicating a distance from a pixel to a video transition, said transition being from said first video stream to said second video stream,
- applying a mapping function to convert each said proximity value to a key value indicating the relative amount of said first and second video stream to be included in a combined output video stream, and
- combining pixel values of said first and second video streams based upon respective said key values.
Apparatus for combining first and second video streams into a combined output video stream comprising
- a processor for receiving a first transition proximity map listing proximity values for pixels in a video frame made up of lines of pixels, each said proximity value indicating a distance from a pixel to a video transition, said transition being from said first video stream to said second video stream,
- said processor including a mapping function to convert each said proximity value to a key value indicating the relative amount of said first and second video streams to be included in a combined output video stream, said processor outputting key values, and
- a video combiner connected to receive said key values from said processor and having inputs for first and second video streams, said combiner combining pixel values of said first and second video streams based upon respective said key values.
Dependencies are inferred from the claim text.