Object surface material analysis method and device

The embodiment of the invention discloses an object surface material analysis method and device. The method comprises the following steps: acquiring a visual image of an object in a scene, wherein the visual image can be a two-dimensional image acquired by common acquisition equipment; and performing visual three-dimensional reconstruction based on the visual image, and determining coding information of a plurality of pixel points in the visual image. According to the invention, material feature extraction and analysis can be carried out on coding information of a plurality of pixel points through a material feature extraction network for a visual image collected by a common collection device, and features of each pixel point in the coding information can be converted into features associated with materials, so that the material category of each pixel point is determined. And according to the material category of each pixel point, the material categories of different pixel points belonging to the same object