Computer auxiliary three-dimensional craniofacial rejuvenation method

Abstract

The invention discloses a computer-aided 3D facial reconstruction method which comprises the following steps: 1) a skull is scanned to acquire a 3D digital skull model; 2) the 3D digital skull model with caverns is carried out acquisition of skull caverns and insertion of discrete points in the cavern area, and then the caverns are filled by adopting triangulation of spatial polygon, finally, the least squares fit and the interpolation method of the radial basis function are adopted to smoothly optimize a curved surface for partial and overall optimization to acquire a complete digital skull model; 3) the facial feature points are acquired by a method of manually marking feature points and a calculation method of adding normal soft tissue thickness along the normal direction of the curved surface, and the discrete feature points are carried out interpolation of the radial basis function and triangulation to acquire a facial reconstruction rudiment of the skull; 4) the reconstructed facial rudiment is generated into the 3D human face model with a sense of reality by a binding texture mapping algorithm. The computer-aided 3D facial reconstruction method has the advantages of good rapidity, high accuracy and reliability.

Description

technical field [0001] The invention relates to a computer-aided three-dimensional craniofacial restoration method. Background technique [0002] In the study of forensic pathology and anthropology, in order to determine the identity of the deceased, it is usually necessary to first determine the appearance of the deceased after the remains of the deceased are found. In many cases, due to the influence of the storage environment and the time of discovery of the remains, the soft tissues of the remains are usually highly decomposed, making it impossible for forensic and anthropological researchers to directly obtain information about the appearance of the deceased. [0003] In order to identify the definite identity of human remains, people have been trying to restore the appearance of the dead from the remains of the bones since ancient times, that is, the so-called restoration of skull appearance. Cranial prosthesis is the technique of reconstructing the facial appearance ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of time-consuming, poor accuracy and poor reliability of existing craniofacial restoration methods, the present invention provides a computer-aided three-dimensional craniofacial restoration method with good rapidity, high accuracy and strong reliability

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