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A face alignment method and camera

A technology of face alignment and face model, which is applied in face alignment method and camera field, can solve the problems of poor robustness of detection results, etc., and achieve the effect of improving positioning accuracy and speed, and robust face alignment scheme

Active Publication Date: 2022-07-12
QINGDAO PICO TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a face alignment method and a camera to solve the problem of poor robustness of the detection results in the face detection of face images whose key points of the face are blocked by the side faces at different angles

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  • A face alignment method and camera
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  • A face alignment method and camera

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Embodiment Construction

[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.

[0021] The terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. As used herein, the words "a," "an," and "the" and the like shall also include the meanings of "plurality," "plurality," unless the context clearly dictates otherwis...

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Abstract

The invention discloses a face alignment method and a camera. The method of the invention includes: constructing a multi-pose face model, each posture face model in the multi-pose face model is associated with a different face angle range; collecting a user's face image; using a preset face detection algorithm to detect the face key points in the face image, obtain the face key points of the user, and obtain the face angle of the user according to the face key points; according to the face angle range associated with each of the posture face models, Obtain the posture face model corresponding to the face angle of the user; perform regression processing on the key points of the user's face according to the posture face model corresponding to the face angle of the user, obtain the facial feature points of the user, and use the face The feature points realize the user's face alignment detection. The technical scheme of the present invention can improve the positioning accuracy and positioning speed of face alignment, and realize a more robust face alignment scheme.

Description

technical field [0001] The invention relates to the technical field of machine learning, in particular to a face alignment method and a camera. Background technique [0002] After years of development of face alignment technology, at the beginning, models such as Active Shape Model (ASM) and Active Appearance Model (AAM) were used for face alignment. Due to its low rate and low robustness, Cascaded regression, deep learning, constrained local models, supervised gradient descent and other methods are gradually applied to the field of face alignment, which greatly improves the robustness of face alignment. [0003] However, the above methods or models are generally aimed at face images without occlusion and facing the camera to obtain relatively robust face alignment detection results, and the face images to be detected are not always facing the camera. Due to the different angles of the profile, some key points of the face are occluded, resulting in the unsatisfactory effect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V40/16
CPCG06V40/166G06V40/172G06V40/168
Inventor 刘子伟吴涛
Owner QINGDAO PICO TECH CO LTD
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