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Lip line completion method and device based on B spline, electronic equipment and storage medium

A spline curve, lip line technology, applied in the B-spline-based lip line completion method, device and electronic equipment field, can solve problems such as insufficient fit and insufficient smooth lip line

Pending Publication Date: 2019-09-27
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD +1
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Problems solved by technology

[0003] In general, the method of extracting lip line is often to calculate the key points of the lips first, and then directly connect these key points in a certain order to form a lip line; due to the limitation of the number of key points, the obtained lip line It is not smooth enough, and the fit is not good enough, and it is difficult to get close to the edge of the lips at any time. These shortcomings make there is a considerable gap between the extracted lip line and the real lip shape

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  • Lip line completion method and device based on B spline, electronic equipment and storage medium
  • Lip line completion method and device based on B spline, electronic equipment and storage medium
  • Lip line completion method and device based on B spline, electronic equipment and storage medium

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Embodiment Construction

[0053] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0054] The embodiment of the present application can be applied to mobile terminals, and mobile terminals can specifically include but not limited to: smart phones, tablet computers, e-book readers, MP3 (Moving Picture Experts Compression Standard Audio Level 3, Moving PictureExperts Group Audio Layer III) player Players, MP4 (Moving Picture Experts Group Audio Layer IV) players, laptop co...

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Abstract

The invention relates to a lip line completion method and device based on a B spline, electronic equipment and a storage medium, and belongs to the technical field of computers. The method comprises the steps that edge detection is conducted on a lip area image of a target object, and pixel points corresponding to lip lines are obtained; feature point detection is carried out on the lip region image to obtain feature points of the corresponding lip line; b spline curve fitting is conducted on the pixel points and the feature points, and a function relation model is established; sampling is carried out according to the function relation model, and the positions of sampling points are determined; and the sampling points are connected to obtain a complemented lip line. A traditional image processing method is replaced by the method, the lip lines which are continuous, smooth, single in pixel and accord with human lip characteristics can be obtained through the method, the mouth lip lines close to the real lip shape can be obtained without combining other image processing methods to carry out edge processing on the lip lines, and application based on the lip shape is facilitated.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a B-spline-based lip line complementing method, device and electronic equipment. Background technique [0002] In related technologies, with the rapid development of the Internet, a large number of applications such as lip shape recognition, AI beauty makeup, and photo beauty have gradually entered daily life as a form of entertainment; among them, the shape of lips can express people's appearance characteristics, feelings, It is also directly related to the content of human speech. It detects and completes the lip edge pixels, and obtains continuous smooth, single-pixel lip lines that conform to the characteristics of human lips. It can be used for 3D reconstruction of lips, lip language recognition, automatic lip makeup, etc. series of applications. [0003] In general, the method of extracting lip line is often to calculate the key points of the lips first, and th...

Claims

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Application Information

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IPC IPC(8): G06T7/13G06T5/00
CPCG06T7/13G06T5/77
Inventor 王雅婷徐枫张国鑫
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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