Patent ID: 11875532
Assignee: ACER INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A feature point position detection method adaptable for an electronic device comprising a first camera and a second camera, and the method comprising:
obtaining a plurality of first relative positions of a plurality of feature points on a specific object relative to the first camera;
obtaining a plurality of second relative positions of the plurality of feature points on the specific object relative to the second camera; and
in response to determining that the first camera is unreliable, estimating a current three-dimensional position of each of the feature points based on a historical three-dimensional position and the plurality of second relative positions of each of the feature points, wherein the plurality of second relative positions comprise a unit vector corresponding to each of the feature points, and the step of estimating the current three-dimensional position of each of the feature points based on the historical three-dimensional position and the plurality of second relative positions of each of the feature points comprises:
obtaining a first distance between the plurality of feature points based on the historical three-dimensional position of each of the feature points;
estimating a second distance between the second camera and each of the feature points based on the unit vector corresponding to each of the feature points and the first distance between the plurality of feature points;
estimating the current three-dimensional position of each of the feature points based on a three-dimensional position of the second camera and the second distance corresponding to each of the feature points.