Three-dimensional face mesh model processing method and three-dimensional face mesh model processing equipment

Abstract

The invention provides a three-dimensional face mesh model processing method and three-dimensional face mesh model processing equipment. The method comprises the following steps of: obtaining an original three-dimensional face mesh model corresponding to an original two-dimensional face image, wherein the original three-dimensional face mesh model contains a second expression feature point corresponding to a first expression feature point of the original two-dimensional face image; calculating a camera parameter matrix of the original three-dimensional face mesh model according to a formula (1); and mapping the second expression feature point onto the original two-dimensional face image according to the camera parameter matrix for judging the matching degree of the second expression feature point and the first expression feature point, and adjusting the original three-dimensional mesh model according to the judging result. The original three-dimensional face mesh model and the original two-dimensional face image are subjected to matching degree judgment according to the camera parameters, and the original three-dimensional face mesh model is adjusted under the condition of low matching degree, so that the regulated three-dimensional face mesh model can be enabled to achieve a better matching degree with the original two-dimensional face image.

Description

technical field [0001] The invention belongs to the technical field of image and graphics processing, and in particular relates to a method and equipment for processing a three-dimensional human face grid model. Background technique [0002] The facial expression of the human face is a subtle body language and an important means of conveying emotional information. In applications such as facial expression animation production and photo processing, it often involves transferring the facial expression on a picture To another face picture with different expressions, for example, someone took a photo, but the expression on the photo is not very satisfied, at this time, he can pass the satisfied expression on a previous photo through a certain process. Image processing techniques are transferred to current photographs. [0003] With the development of 3D modeling and acquisition technology, 3D models can provide more detailed information than 2D images. Therefore, in the process...

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Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the present invention provides a method and device for processing a three-dimensional face grid model to overcome the differences between the three-dimensional face grid model established in the prior art based on the overall deformation of the facial expression database. Defects with low matching degree of the corresponding two-dimensional face image

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