Patent ID: 11870493
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. The communication method of claim 1, wherein step of detecting the corresponding first area in each first frame comprises:
binarizing each first frame using a threshold within a vicinity of at least one pixel value of one pixel of one of the first areas, to obtain binarized frames, wherein the one of the first areas corresponds to a bright signal pulse of the first signal pulses;
extracting at least one corresponding first bright area in each binarized frame, to obtain a position of each of the at least one corresponding first bright area; and
tracking the position of each of the at least one corresponding first bright area such that each set of at least one set of bright and dark areas corresponding to the binarized frames and related in position is detected, wherein the at least one set of bright and dark areas comprise the first areas.