Face replacement method, device and electronic device

A face replacement and character technology, applied in the field of image processing, can solve the problem that the result is not realistic enough, and achieve the effect of avoiding the rendering result

Active Publication Date: 2017-11-03
赣州朗顺数字科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to differences in head shape and face shape from person to person, only replacing the actor's face will make the result unrealistic
Moreover, the facial expression model generally does not include lips. When the actual degree of the actor's mouth opening is inconsistent with the distribution of mouth feature points obtained by the face detection API, the rendering result of "mouth in mouth" may appear

Method used

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  • Face replacement method, device and electronic device
  • Face replacement method, device and electronic device
  • Face replacement method, device and electronic device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0033] Please refer to figure 2 , figure 2 A flowchart of a face replacement method provided by an embodiment of the present invention is shown. The face replacement method includes the following steps:

[0034] Step S101, acquiring a target frame image of the original video, wherein the target frame image is any frame image of the original video.

[0035] In the embodiment of the present invention, the face replacement method can implement face replacement for specified actors in videos (such as TV dramas, movies, short films, etc.), and can also implement face replacement for specified characters in pictures. As an implementation manner, the original video may be, but not limited to, a TV series, movie, short film and other videos containing specified actors.

[0036] Step S102, in the target frame image, determine the head area of ​​the first person.

[0037] In the embodiment of the present invention, the first person is a person to be replaced for face replacement, ...

Embodiment approach

[0049] In the embodiment of the present invention, the method for matching the head area of ​​the rendered image with the head area of ​​the first person in the target frame image may be: first, detecting feature points of the head area of ​​the rendered image; second, detecting The feature points of the head area of ​​the first person in the target frame image; third, carry out affine transformation on the feature points obtained in the previous two steps, so as to combine the head area of ​​the rendered image with the head area of ​​the first person in the target frame image Fourthly, Gaussian smoothing is performed on the head area of ​​the rendered image according to the head area of ​​the first person in the previous frame / next frame image of the target frame image to obtain the first image. As an implementation manner, the feature points may include feature points of the edge contour of a human face and feature points of facial features of a person.

[0050] Please refer...

no. 2 example

[0074] Please refer to Figure 7 , Figure 7 A schematic block diagram of the face replacement device 200 provided by the embodiment of the present invention is shown. The face replacement device 200 includes a target frame image acquisition module 201 , an area determination module 202 , a background restoration module 203 , a first image acquisition module 204 , an expression tracking module 205 and a second image acquisition module 206 .

[0075] The target frame image acquisition module 201 is configured to acquire a target frame image of the original video, wherein the target frame image is any frame image of the original video.

[0076] In the embodiment of the present invention, the target frame image acquisition module 201 may be used to execute step S101.

[0077] The area determination module 202 is configured to determine the head area of ​​the first person in the target frame image.

[0078] In the embodiment of the present invention, the area determination modu...

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Abstract

The present invention belongs to the image processing technical field and provides a face replacement method, a face replacement device and an electronic device. According to the face replacement method, the face replacement device and the electronic device of the invention, the head region of a first person in a target frame image is determined, the three-dimensional head model of a second person is rendered to a background image where the head region of the first person has been removed, so that a first image containing the head region of the second person and the trunk region of the first person can be obtained, and therefore, the complete replacement of the head of a person can be ensured, a problem of the untruthfulness of a result which is caused by only replacing a face in the prior art can be solved; facial expression tracking is performed on the first person in the target frame image, so that a first model containing a face mixed model and a lip model can be obtained; the first model is rendered to the head region of the second person in the first image, so that a second image can be obtained; and therefore, a rendering result with a ghosting mouth in the prior art can be avoided.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a face replacement method, device and electronic equipment. Background technique [0002] With the development of virtual reality, virtual human face technology (also known as "face changing") has also been greatly developed, for example, it is applied in the replacement of movie roles. At present, a commonly used implementation method of virtual face technology is: first, use face detection technology to obtain face feature points of the target frame and material frame, and make three-dimensional models of different expressions; The relative offset between the feature points and the feature points of the standard face is used to control the degree of deformation of each 3D model and to mix them; finally, the face feature points of the material frame are fused to the mixed model to complete the rendering. [0003] However, due to differences in head shape and fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T13/40G06T15/00
CPCG06T13/40G06T15/005G06V40/176G06V40/168
Inventor 马兆远侯沛宏郝君梁冬雪
Owner 赣州朗顺数字科技有限公司
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