The invention discloses a virtual character
expression action extraction method, device and apparatus, and a storage medium. The method comprises the following steps: acquiring a character action video; and extracting character action information from the character action video, constructing a character action
library, obtaining a corresponding lip image according to a voice
signal, embedding thelip image into a face image corresponding to the character action
library; generating an image containing character expressions and actions; and extracting character expression actions from the image.Different second
label information can be generated by constructing a character action
library and simply modifying two-dimensional point coordinates or the shape of a two-dimensional
mask, so that the content of the character action library can be enriched; according to the method, different expression actions can be extracted at any time while the character
expression action extraction operation is simplified, rich character action libraries can be provided, new actions can be conveniently added into the character action libraries, and the working efficiency is improved. The method is widely applied to the technical field of
image processing.