Method and device for characteristic analysis of human body based on shoes wearing footprint images

The invention discloses a method and a device for the characteristic analysis of a human body based on shoes wearing footprint images, and belongs to the technical field of criminal investigation. The method comprises the following steps: S1, preprocessing the shoes wearing footprint images: removing the interference on shoe sole patterns in the shoes wearing footprint images through an image filter operation, wherein the dimension of the filter is determined according to the size of the pattern adaptively; S2, carrying out multi-layer pressure surface extraction on the shoes wearing footprint images; S3, obtaining the morphological characters of the footprints; and S4, building mathematic models between the morphological characters and stature, age, posture and posture; and obtaining the characteristics of the human body. According to the method provided by the invention, the characteristic analysis of the human body can be realized automatically, and the characteristic analysis of the human body can be analyzed stably and precisely without the influence caused by the dimensions of the shoe sole patterns.