Human body weight illumination method based on dynamic surface reflection field

The invention discloses a human body weight illumination method based on a dynamic surface reflection field, and the method comprises the following steps: decomposing a 4D space through multi-plane and Hash representation, and carrying out the coding of a multi-view dynamic human body video, and obtaining a compact space-time position code; sign distance function values, geometric features and color values of the light sampling points are obtained; the depth, the normal direction, the color and the material of the corresponding pixel are obtained; modeling direct illumination, light visibility and indirect illumination; meanwhile, the rendered image is constrained, model parameters are learned, and a dynamic human body weight illumination video is obtained. According to the method, modeling is carried out on the human body surface reflection field by designing efficient 4D implicit expression, the inherent problems of large fitting error and low motion freedom degree in a template-based method are solved, and