An irregular three-dimensional face mesh texture method based on template face approximation

Abstract

The invention discloses an irregular three-dimensional face mesh texture method based on template face approximation, which comprises the following steps: establishing a texture mapping relationship between template three-dimensional face mesh and template texture image points; initially aligning the template three-dimensional face mesh with the irregular three-dimensional face mesh; constructingan error energy function between the aligned template three-dimensional face mesh and the irregular three-dimensional face mesh, and optimizing the error energy function so that the template three-dimensional face mesh approaches the irregular three-dimensional face mesh, and finally obtaining a standard three-dimensional face mesh; according to the above texture mapping relationship, realizing the texture mapping between normative three-dimensional face mesh and template texture image, and then generating a normative three-dimensional face model with texture. The normalized three-dimensionalface mesh of the invention realizes texture mapping with template texture image through template parameterized texture coordinates, and has the advantages of normalized input of three-dimensional facemesh topology and vertex number and low cost.

Description

technical field [0001] The invention relates to the technical field of face data computer processing, in particular to an irregular three-dimensional face mesh texture method based on template face approximation. Background technique [0002] The textured 3D face model is widely used in many fields such as personalized consumption, film and television advertisement, game entertainment, visual real-time communication, plastic surgery rehearsal, new generation of human-computer interaction, etc. In addition, texture mapping is the process of establishing the correspondence between the surface of a three-dimensional object and the pixel coordinates of a two-dimensional image space. Because it consumes less hardware computing resources and is more convenient for rendering, texture mapping is an effective method to enhance the realism of 3D face meshes. However, in many applications, the 3D face mesh constructed by some methods generally has the problem of irregular topology or ...

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Problems solved by technology

The method of Newcombe et al. (Newcombe R A, Izadi S, Hilliges O, et al. KinectFusion: Real-time dense surface mapping and tracking[C] / / Mixed and augmented reality (ISMAR), 2011 10th IEEE international symposium on. IEEE, 2011: 127-136.) The depth camera Kinect can be used to perform 3D scanning and reconstruction of the real human body, and finally obtain the 3D human body with texture information, but the model mesh topology reconstructed by this method is relatively complex and the number of vertices is also large, and it takes a long time It takes time for manual repairs to be applied to engineering projects; and methods similar to using 3D scanners have this problem

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