Three-dimensional expression base generation method and apparatus, speech interaction method and apparatus, and medium

A computer device, comprising a processor and a memory, the memory storing at least one program, the at least one program being loaded and executed by the processor to perform a plurality of operations including:

• obtaining n sets of image pairs of a target object inn types of head postures, the n sets of image pairs comprising color feature images and depth images in the n types of head postures, an ith head posture being corresponding to an ith set of image pair, n being a positive integer, 0<i≤n;
• constructing a 3D human face model of the target object according to the n sets of image pairs;
• and
• generating an expression base corresponding to the target object based on the 3D human face model.

A non-transitory computer-readable storage medium, storing at least one program, the at least one program being loaded and executed by a processor of a computer device to perform a plurality of operations including:

• obtaining n sets of image pairs of a target object inn types of head postures, the n sets of image pairs comprising color feature images and depth images in the n types of head postures, an ith head posture being corresponding to an ith set of image pair, n being a positive integer, 0<i≤n;
• constructing a 3D human face model of the target object according to the n sets of image pairs;
• and
• generating an expression base corresponding to the target object based on the 3D human face model.