Abstract:

By employing the evolution model of one-dimension signals,an evolution model of the image is construe-ted in a generalized space.and the relationships between the parameters of the proposed model and the physical variables of the image are ven,on the basis of which a structural information model of the image is proposed,H (Tran)being defined as the structure entropy of the image.It is indicated that images should evolve to achieve the highest structure entropy. Moreover.a hierarchical structure model is established,all term inal nodes of which form a semantic string.The semantic code of the image is finally defined.The inform ation quantity and entropy of this code are respectively considered as the semantic inform ation and the semantic entropy.

Key words: evolution model, image structure, structure entropy, semantic inform ation, semantic code