Inventors:
Wenqing Jiang - San Jose CA, US
Ying Cao - San Jose CA, US
Li Hao - Cupertino CA, US
Weiping Pan - San Jose CA, US
Assignee:
BROADCOM CORPORATION - Irvine CA
International Classification:
G06K 9/40
Abstract:
Methods, systems, and apparatuses for processing captured image data are described. A first array of pixel data values corresponding to a captured image is received. The first array is segmented into a plurality of N by M array portions. A subsample pattern is selected for each N by M array portion of the plurality of N by M array portions from a plurality of subsample patterns so that each N by M array portion has a corresponding selected subsample pattern. The subsample patterns may be selected in a random fashion, or other fashion, to avoid noise patterns in a spatial domain (same image frame) and/or in a time domain (across multiple image frames). Each N by M array portion is subsampled according to the corresponding selected subsample pattern to generate a second array of filtered pixel data values. The second array of filtered pixel data values corresponds to a down-sized version of the captured image. This process may be performed on data of multiple color channels corresponding to the captured image, and on data corresponding to multiple captured image frames in a video stream.
