Patent ID: 9323347
Filing Date: 2016-04-26
CPC Classification: G06F,G06K,G06T

Claim Text:
1. An optical pointing system, comprising: at least one reference beacon; an image sensor configured to capture an image frame containing a beacon image associated with the at least one reference beacon; a storage unit configured to save image data of at least one object image in the image frame; and a processing unit configured to sequentially process every pixel of the image frame within a scan period for identifying the at least one object image, and when two object images simultaneously appear within a clearance range of the image frame within the scan period, remove image data, saved in the storage unit, associated with the two object images within the clearance range, wherein the clearance range is a pixel region extending outward from an edge of the at least one object image to a pixel area smaller than the image frame, and the two object images are separated from each other in the image frame.