Invention Grant
- Patent Title: Facial feature point tracking method, apparatus, storage medium, and device
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Application No.: US16542005Application Date: 2019-08-15
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Publication No.: US10943091B2Publication Date: 2021-03-09
- Inventor: Mengran Lin , Xinliang Wang , Bin Li
- Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
- Applicant Address: CN Shenzhen
- Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
- Current Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
- Current Assignee Address: CN Shenzhen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: CN201710473506.8 20170621
- Main IPC: G06T7/00
- IPC: G06T7/00 ; G06K9/00 ; G06T7/246

Abstract:
In a method for facial feature point tracking, facial feature points of a face in a previous image of a to-be-tracked image are acquired in an image sequence. Facial feature point errors between the to-be-tracked image and the previous image are determined based on a preset error model and pixels in the to-be-tracked image. The facial feature point errors indicate differences between first coordinates of facial feature points in the to-be-tracked image, and second coordinates of facial feature points at corresponding positions in the previous image. The preset error model is trained based on facial feature points in a plurality of pairs of adjacent reference images. Further, the facial feature points of the face in the to-be-tracked image are determined based on the facial feature points of the face in the previous image and the facial feature point errors between the to-be-tracked image and the previous image.
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