Ambient Light Rejection In Digital Video Images
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United States of America Patent
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Issued Date -
Nov 15, 2007
app pub date -
Jul 28, 2006
filing date -
May 9, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for generating an ambient light rejected output image includes providing a sensor array including a two-dimensional array of digital pixels where the digital pixels output digital signals as digital pixel data representing the image of the scene, capturing a pair of images of a scene within the time period of a video frame using the sensor array where the pair of images includes a first image being illuminated by ambient light and a second image being illuminated by the ambient light and a light source, storing the digital pixel data associated with the first and second images in a data memory, and subtracting the first image from the second image to obtain the ambient light rejected output image.
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