Patent ID: 7382931
Filing Date: 2008-06-03
Classification: G06T,H04N

Abstract:
1. A computer-implemented process for generating high dynamic range (HDR) video from an image sequence captured while varying the exposure of each frame, said process comprising: a setting step for setting the exposure for each frame of the video image sequence prior to it being captured as a function of the pixel brightness distribution, wherein the frames of the video image sequence alternate between one captured at a shorter exposure and one captured at a longer exposure; and for each frame of the video after a prescribed number of initiating frames, for each set of corresponding pixels, a second identifying step for identifying at least one pixel in the set that represents a trustworthy pixel and an employing step for employing the pixel color information associated with the one or more identified trustworthy pixels to compute a radiance value for that set of pixels to form a radiance map representing a frame of the HDR video.