Patent ID: 11922639
Assignee: DOLBY LABORATORIES LICENSING CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. A computer program product for generating a motion-compensated high-dynamic-range (HDR) color image from a dual-exposure-time single-shot HDR color image sensor, comprising machine-readable instructions encoded in non-transitory memory, the instructions including:
data selection instructions that, when executed by a processor, retrieve pixel values generated by a local region of respective sensor pixels of the dual-exposure-time single-shot HDR color image sensor, the local region corresponding to position of an image pixel of the motion-compensated HDR color image, the sensor pixels of the local region including, for each of three different colors, a plurality of short-exposure-time pixels and a plurality of long-exposure-time pixels sensitive to the respective color, and select a first color based upon an evaluation of luminance of each of the colors in the local region;
motion instructions that, when executed by the processor, determine a motion parameter for the local region from the pixel values of the short-exposure-time pixels and the long-exposure-time pixels associated with the first color; and
demosaicing instructions that, when executed by a processor, demosaic the pixel values of the local region to determine, for each color, an output value of the image pixel from the short-exposure-time pixels and the long-exposure-time pixels, relative contributions of the short-exposure-time pixels and the long-exposure-time pixels to the output value being weighted according to the motion parameter.