Face key point positioning method, face image processing method and related device

Abstract

The invention discloses a face key point positioning method, a face image processing method and a related device, belongs to the technical field of image processing. The face key point positioning method which comprises the steps of determining position information of a face key point and a result whether each key point is visible or not according to an acquired face image and a face registrationmodel obtained through training; Respectively determining the number of visible key points in each feature part of the face; For each feature part, if the number of visible key points in the feature part is greater than a preset number threshold value, extracting a feature part image only containing the feature part; According to the feature part image of the feature part and the feature part registration model corresponding to the feature part, correcting the position information of the key point of the feature part; And based on the corrected position information of the key points of each feature part, updating the position information of the key points of the face determined based on the face registration model. The accuracy of the position information of the positioned key points is greatly improved.

Description

[0001] This application claims the priority of the Chinese patent application submitted to the China Patent Office on December 12, 2018, with the application number 201811516620.5, and the title of the invention is "A method for locating key points of a human face, a method for processing a human face image, and related devices". The entire contents are incorporated by reference in this application. technical field [0002] The present invention relates to the technical field of image processing, in particular to a method for locating key points of a human face, a method for processing a human face image and related devices. Background technique [0003] With the popularity of selfies and short videos, users' demands for functions such as automatic beautification, automatic makeup, and automatic accessories are constantly increasing. Face registration, as the basis for realizing these functions, has also been widely used. Face registration refers to automatically locating th...

AI Technical Summary

Problems solved by technology

[0005] The method provided by the prior art has the following problems. The positioning accuracy of the key points of the face is low, which affects the accuracy of the candidate automatic beauty, makeup, and pendant functions. In addition, the existing technology cannot determine the location of the key points. Visibility, which affects features such as automatic makeup, for example, figure 1 The middle left eye is obviously covered by the hair, and the key points that make up the left eye are obviously invisible. If the key points are identified according to the existing scheme, it is impossible to determine whether the key points are visible, so the left eye will still be displayed during automatic makeup. Makeup (eye shadow and color contact lenses, etc.), resulting in makeup on the hair, affecting user experience

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