Methods, Devices, and Systems for Identifying the Composition of Materials

Computer-implemented methods for determining the material composition of an object are disclosed. The method may include obtaining a target image of the object; determining a material cross-sectional image corresponding to a material to be detected and included in the target image; determining a most similar candidate image to the target image and corresponding candidate material composition information, where the most similar candidate image is selected from a target database; generating a material composition area image set comprising a plurality of material composition area images associated with the material cross-sectional image and the most similar candidate image; determining a set of material composition information corresponding to each of the plurality of material composition area images in the material composition area image set; and obtaining a material composition information set from the set of material composition information. This method improves the recognition accuracy and recognition efficiency of the material composition.