Facial expression generation method and device, electronic device and storage medium

Abstract

The invention provides a facial expression generation method and device, an electronic device and a storage medium. The method comprises: performing feature extraction on obtained voice information, obtaining a first voice feature vector, the first voice feature vector comprising a plurality of voice feature parameters, and each voice feature parameter indicating a Mel frequency cepstrum coefficient based on voice; inputting the first voice feature vector into a preset recognition model to obtain a first expression vector, wherein the first expression vector comprises a plurality of expressionparameters; and fitting the three-dimensional animation model according to the first expression vector to obtain a three-dimensional animation model with expressions. The Mel frequency cepstrum coefficient based on the voice can retain the content information, pitch, tone and other voice characteristics of the voice, and can better restore the expression action. Therefore, the facial expressionsof the three-dimensional animation model are more correct, the facial expressions can be better simulated, and the obtained expression actions conform to the voice information and the voice data.

Description

technical field [0001] The present application relates to the technical field of animation, in particular to a method, device, electronic equipment and storage medium for generating facial expressions. Background technique [0002] With the development of 3D animation technology, 3D animation has been loved by more and more users, and has begun to be widely developed and applied. The 3D animation model needs to realize various actions, and the face of the 3D animation model needs facial expression actions. Therefore, it is necessary to process the face of the 3D animation model to obtain facial expression movements. [0003] In the prior art, speech can be used to fit the face of the 3D animation model, and then a 3D animation model with expressions can be obtained. First, feature extraction is performed on the original speech data to obtain the phoneme formant features; then, the phoneme formant features are used to drive the face of the 3D animation model, and then the f...

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Problems solved by technology

[0005] The present application provides a method, device, electronic equipment and storage medium for generating facial expressions, so as to solve the problem that facial expressions cannot be simulated well in the prior art, the facial expressions of the obtained 3D animation model are incorrect, and the obtained 3D animation The model's facial expression does not match the corresponding voice data

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