Method for adjusting face plumpness in image

An adjustment method and technology in images, applied in the field of adjustment of fat and thin faces in images, can solve the problems of single area, inability to accurately simulate fat and thin, limited application occasions, etc., to achieve a clear algorithm and friendly interface. , the result is robust

Active Publication Date: 2013-07-17
SHANGHAI LINCTEX DIGITAL TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, this algorithm requires that the face can only be a frontal face, and the application occasions are very limited.
At

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  • Method for adjusting face plumpness in image
  • Method for adjusting face plumpness in image
  • Method for adjusting face plumpness in image

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Embodiment Construction

[0058] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] Such as figure 1 As shown, the adjustment method of fat and thin people's faces in the image of the present invention comprises the following steps:

[0060] (1) Establish a 3D face model

[0061] The establishment of a 3D face model can use hardware devices such as laser scanners and depth cameras to obtain face geometry and texture data, and directly obtain a 3D face model; or reconstruct a 3D face model from a single or multiple images using Blanz and The adaptive method proposed by Vetter reconstructs a 3D face model from an image by adjusting the standard model.

[0062] (2) Obtain 54 feature points of the face on the three-dimensional face model established in step (1)

[0063] For the 3D face model obtained by hardware devices such as laser scanners and depth cameras, put the 3D face model to be processed in the specified spa...

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Abstract

The invention discloses a method for adjusting face plumpness in an image. The method comprises the following steps of: establishing a three-dimensional face model; acquiring 54 feature points of a face from the established three-dimensional face model; adjusting the positions of the acquired 54 feature points according to a linear regression equation of the soft tissue thickness of the face feature points about age and weight and plumpness adjusting parameters input by a user; establishing a full rank linear system by adopting a Laplacian deformation algorithm and using the position-adjusted 54 feature points serving as a constrained point set and the face apex in the three-dimensional face model, and solving a linear equation set to obtain an adjusted three-dimensional face model; performing triangular mesh parameterization on the original image; and changing the position of a triangular mesh apex of the original image under the drive of the adjusted three-dimensional face model, and performing texture mapping to obtain an adjusted image. By adopting the Laplacian deformation technology for keeping detail features, the face plumpness is adjusted, and most detail feature information on the face is kept at the same time.

Description

technical field [0001] The invention relates to the field of computer graphics and image processing, in particular to a method for adjusting fat and thin faces in an image. Background technique [0002] There is no doubt that the human face plays an irreplaceable role in the first impression and conveying emotions. In social activities between people, people's appearance plays a very critical role. Several studies have shown that people care a lot about how good their faces are. At the same time, the fatness and thinness of the human face are associated with beauty. From the point of view of traditional aesthetics, the average image of a human face is the result of diversity and unity, so an image that is too fat or too thin is considered disharmonious and unbeautiful. [0003] Most people hope that the face they present to others can be more beautiful and attractive. For example, girls use makeup to make themselves more beautiful. Due to the rapid development of camera...

Claims

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Application Information

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IPC IPC(8): G06T15/00
Inventor 曾文婷赵海明金小刚
Owner SHANGHAI LINCTEX DIGITAL TECH CO LTD
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