Face feature point positioning method and device

A technology of face features and positioning methods, applied in the computer field, can solve problems such as reduced computational efficiency and increased number of iterations
CN104036240AActive Publication Date: 2014-09-10XIAOMI INC
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
XIAOMI INC
Publication Date
2014-09-10

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Abstract

The invention relates to a face feature point positioning method and device, and belongs to a computer field. The method comprises the following steps: detecting a face image in a current frame of image in a video sequence; according to the final positioning positions of the face feature points of the previous frame of image, determining the initial positioning positions of the face feature points of the current frame of image in the detected face image; and according to the image feature value of the face image on the initial positioning positions, positioning the face feature points of the current frame of image so as to obtain the final positioning positions of the face feature points of the current frame of image. The device comprises a detection module, a determining module and a positioning module. According to the invention, the obtained initial positioning positions of the face feature points of the current frame of image can be near the practical positions of the face feature points of the current frame of image according to the final positioning positions of the face feature points of the previous frame of image so as to reduce iterations in a positioning computation process and improve feature point positioning efficiency.
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Description

technical field

[0001] The present disclosure relates to the field of computers, and in particular to a method and device for locating facial feature points. Background technique

[0002] The positioning technology of facial feature points refers to the detection of human faces based on face detection technology, and the recognition of the detected faces to determine the position and shape information of key facial feature points such as eyes, nose and mouth. The location technology of facial feature points can provide corresponding basic data for research work such as face recognition, facial posture and expression analysis, face beautification, and face tracking, so it plays an important role.

[0003] The principle of the positioning technology of related face feature points includes, firstly, face detection is performed on the image; secondly, in the detected face image, the average position of the face feature points in the preset training set is used as the face featur...

Claims

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