A 3D face change simulation method

Abstract

The invention discloses a three-dimensional human face change simulation method, comprising: constructing a three-dimensional craniofacial database; standardizing the craniofacial model; extracting the law of human face aging and fat and thin changes; and simulating the human face aging and fat and thin changes. The method of the invention takes into account the changes of aging and fat or thin at the same time, and can simulate the changes in the appearance of the human body caused by the increase of age and the change of body weight. The present invention proposes for the first time to use craniofacial CT data to realize the aging and fat-thin change simulation of three-dimensional human faces. In the absence of three-dimensional time-series human face data, the present invention can use craniofacial data of different people to eliminate the influence of "different people" and dig out the rules of aging and fat and thin changes of human faces. Moreover, the algorithm adopted in the present invention is simple and efficient, and the simulation result is accurate. It can be used in criminal investigation to find criminals who have fled for many years; it can assist medical plastic surgery; it can assist makeup design in film and television entertainment, etc.

Description

technical field [0001] The invention relates to the field of image simulation, in particular to a three-dimensional face change simulation method. Background technique [0002] Aging is an inevitable process. With age and weight changes, the appearance of people's faces will change greatly. The simulation of face aging process is one of the research hotspots in the fields of computer graphics, image processing and computer vision. application. However, due to the complex aging mechanism, aging is affected by many factors, it is difficult to obtain high-purity aging data, and the aging process has diversity and uncertainty, etc., the research on face aging faces many challenges. [0003] In the past 30 years, scholars at home and abroad have conducted a lot of research on the simulation of the aging process of the face and proposed many algorithms. According to the different dimensions of face data, it can be divided into two-dimensional face aging simulation and three-dim...

AI Technical Summary

Problems solved by technology

Foreign scholars have established a large-capacity face aging database, but it is only suitable for Westerners, not for Chinese

[0005] Two-dimensional aging data is easier to collect. In contrast, three-dimensional aging data is difficult to obtain, because it is difficult to track the same person and collect the three-dimensional face model of the person's age. At present, there is no public three-dimensional face at home and abroad. aging database

Moreover, obesity and thinness will affect aging characteristics. For example, fat people develop wrinkles later than thin people, and existing algorithms cannot correctly reflect such changes.

Images