Three-dimensional human face change simulation method

Abstract

The invention discloses a three-dimensional human face change simulation method which comprises the steps of constructing a three-dimensional facies cranii database; standardizing a facies cranii model; extracting a human face aging and weight change rule; and simulating the human face aging and weight change. According to the three-dimensional human face change simulation method, aging and weight change are simultaneously considered; and human experience change caused by age increase and weight change can be simulated. According to the three-dimensional human face change simulation method, simulation for aging and weight change of the three-dimensional human face is firstly realized through utilizing facies cranii CT data. According to the three-dimensional human face change simulation method, on condition that three-dimensional time sequence human face data are in shortage, facies cranii data of different persons can be used; the effects of different persons are eliminated from the facies cranii data; and furthermore the aging role and the weight change role of the human face can be extracted. Furthermore an algorithm which is adopted in the three-dimensional human face change simulation method has advantages of simple and high-efficiency operation, and accurate simulation result. The three-dimensional human face change simulation method can be used for searching criminals who have absconded for many years in criminal investigation. The three-dimensional human face change simulation method can be performed in association with medical cosmetic surgery. Furthermore the three-dimensional human face change simulation method can assist cosmetic design, etc. in film and television entertainment.

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.

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