Patent ID: 11881018
Assignee: HANGZHOU TARO POSITIONING TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A tracking controller, comprising:
a computer processor; and
memory storing instructions, when executed, causing the computer processor to:
obtain, from an optical sensor comprising first and second sensing matrices, an image of a scene;
analyze a first pixel of the image to detect imbalanced pixel sensing values from the first and second sensing matrices;
analyze a second pixel of the image to detect balanced pixel sensing values from the first and second sensing matrices;
compare the imbalanced pixel sensing values and the balanced pixel sensing values to generate a result;

determine, based on the result, that a first portion of the scene associated with the first pixel corresponds to a background of the scene, and that a second portion of the scene associated with the second pixel corresponds to a pre-determined light source;
obtain, from a camera device comprising the optical sensor, a sequence of images comprising the image;
detect, based on a pattern of local light change across a sequence of images, a light source in the scene;
compare, in response to detecting the light source, a location of the light source in at least one image of the sequence of images and a target position within the at least one image to generate a result; and
generate, based on the result, a control signal for changing a field-of-view of the camera device such that the light source substantially aligns with the target position within the field-of-view.