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Realistic 3D Face Editing

Posted on:2004-09-15Degree:MasterType:Thesis
Country:ChinaCandidate:Y Y LiuFull Text:PDF
GTID:2168360092992059Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
The research on computer synthesis realistic human face is a foundation and meanwhile a difficulty in the area of computer graphics. Since the pioneering work of Frederic I. Parke in 1972, the realistic facial synthesis is still a subject with great challenge and worth deeply researching to researchers in the computer graphics field. Based on the previous work of the field in facial synthesis and surfaces editing or solids editing, we propose a simple and effective method for editing 3D human faces. Given a specific human face, we can generate a new 3D face model automatically by editing, which is to replace a certain organ with the corresponding part in the database. Our organ database is constructed using the reconstruction approach based on photographs. Here, the face-editing scheme includes two parts: geometry fitting and texture fitting. In geometry fitting, we introduce the scattered data interpolation technology, and by using the corresponding points on the shared boundary between the given facial mesh and the organ to be pasted, the facial mesh can be automatically fitted to the organ to be used. And in texture fitting, we extend the improved field-based morphing algorithm to the corresponding texture map, and with the preprocessing of the histogram-matching method we can obtain smooth replacing result in the texture map. At last, with the help of TEXTRUE-FITTING, the texture mapping tool, where the features between model and texture can be matched, and combination the two above steps, we can obtain a new virtual human, not only different from the specific one, but also satisfied the specific require.The method not only provides a new application for the 3D facial reconstruction, but also can be realized on PC plat easily and quickly. A lot of experiment results have demonstrated the efficiency of our approach for editing 3D human faces.
Keywords/Search Tags:Facial Organ Database, Radial Basis Functions, the Scattered Data Interpolation, Field-based Morphing, Histogram Matching, Editing
PDF Full Text Request
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