Patent ID: 11893749
Assignee: CHENGDU TOMMI TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. The readable storage medium according to claim 15, wherein in the focus following method,
a direction of the depth moving speed of the living object is calculated by calculating a change proportion of a size of the motion gravity center image within the initial time period, moreover,
if the size of the motion gravity center image becomes larger within the initial time period, it is indicated that the living object moves in a direction close to the camera,
if the size of the motion gravity center image within the initial time period is unchanged, it is indicated that a distance between the living object and the camera is unchanged, and
if the size of the motion gravity center image becomes smaller within the initial time period, it is indicated that the living object moves in a direction away from the camera.