Method for directly transferring three-dimensional model attitude

Abstract

The invention relates to a method for directly transmitting the posture of a three-dimensional model, relates to computer graphics technology, and can directly transmit the posture of a source three-dimensional model to a target three-dimensional model. First, the user specifies the anchor points corresponding to the source / target model features, and then the corresponding algorithm automatically establishes the correspondence between the source and target triangles; then, the triangle patch is rotated and translated to generate a temporary mesh, which extracts the reference target The rigid components of the mesh, while retaining the pose information of the source mesh as much as possible; then rearrange the patches in the temporary mesh according to the predefined Laplace differential constraints, and splicing to generate a meaningful three-dimensional Model. The method of the invention solves the pose transfer between single 3D models, whether it is the overall skeleton structure or the fine skin deformation; it helps 3D animators to efficiently and quickly use the existing 3D model library to make 3D models with complex poses, and No need to start from scratch or time-consuming repeated manual adjustments.

Description

technical field [0001] The invention relates to the technical field of computer graphics, and relates to a method for directly transferring the pose of a three-dimensional model—model transduction, which can directly transfer the pose of a source three-dimensional model to a target three-dimensional model. Background technique [0002] Mesh deformation is widely used in both computer modeling and computer animation. 3D animators and artists use various morphing tools in 3D production software to manually edit the facial expressions and body shapes of virtual characters. Not only do these methods require a lot of artistic skill to adjust the deformation, but it is also difficult to reuse the results on new 3D models. In order to use a parameterized 3D model to control the deformation of another 3D model, specific deformation parameters must be matched to the new shape. In many cases, setting these parameters is too time-consuming to start over. [0003] Noh et al. proposed...

AI Technical Summary

Problems solved by technology

[0005] Another limitation of expression cloning and morph transfer is that the source and target reference meshes must have the same motion pose, since both methods replicate the shape change caused by morphing

Furthermore, if the source morph itself lacks realism, it is clear that the morph target model generated by the source morph must also be less than realistic, and unfortunately does not provide an effective means to improve the result

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