Patent ID: 11895440
Assignee: INTEL CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 21:
22. A method to select areas of an image for object detection, the method comprising:
subtracting first image data from second image data to determine a difference image;
converting the difference image into a modified image, respective pixels of the modified image to have one of a plurality of pixel values including a first pixel value and a second pixel value;
determining respective percentages for respective multi-pixel image blocks of the modified image, the respective multi-pixel image blocks respectively including multiple pixels of the modified image, the respective percentages representative of quantities of pixels having the first pixel value in the respective multi-pixel image blocks of the modified image;
selecting first ones of the multi-pixel image blocks based on the respective percentages, the first ones of the multi-pixel image blocks to be processed to detect one or more objects; and
skipping processing of second ones of the multi-pixel image blocks that are not selected based on the respective percentages.