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Pages Scasso, Rafael and Morán Burgos, Francisco and Salgado Álvarez de Sotomayor, Luis and Berjón Díez, Daniel (2012). Refined facial disparity maps for automatic creation of 3D avatars. In: "Three-Dimensional Image Processing (3DIP) and Applications II", 24/01/2012 - 26/01/2012, San Francisco, California, USA. pp. 1-8. https://doi.org/10.1117/12.908259.
Title: | Refined facial disparity maps for automatic creation of 3D avatars |
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Author/s: |
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Item Type: | Presentation at Congress or Conference (Article) |
Event Title: | Three-Dimensional Image Processing (3DIP) and Applications II |
Event Dates: | 24/01/2012 - 26/01/2012 |
Event Location: | San Francisco, California, USA |
Title of Book: | Three-Dimensional Image Processing (3DIP) and Applications II |
Date: | 2012 |
Volume: | 8290 |
Subjects: | |
Freetext Keywords: | Computer graphics, computer vision, 3D reconstruction |
Faculty: | E.T.S.I. Telecomunicación (UPM) |
Department: | Señales, Sistemas y Radiocomunicaciones |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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We propose a new method to automatically refine a facial disparity map obtained with standard cameras and under conventional illumination conditions by using a smart combination of traditional computer vision and 3D graphics techniques. Our system inputs two stereo images acquired with standard (calibrated) cameras and uses dense disparity estimation strategies to obtain a coarse initial disparity map, and SIFT to detect and match several feature points in the subjects face. We then use these points as anchors to modify the disparity in the facial area by building a Delaunay triangulation of their convex hull and interpolating their disparity values inside each triangle. We thus obtain a refined disparity map providing a much more accurate representation of the the subjects facial features. This refined facial disparity map may be easily transformed, through the camera calibration parameters, into a depth map to be used, also automatically, to improve the facial mesh of a 3D avatar to match the subjects real human features.
Item ID: | 30578 |
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DC Identifier: | http://oa.upm.es/30578/ |
OAI Identifier: | oai:oa.upm.es:30578 |
DOI: | 10.1117/12.908259 |
Official URL: | http://dx.odi.org/ 10.1117/12.908259 |
Deposited by: | Memoria Investigacion |
Deposited on: | 17 Sep 2014 18:56 |
Last Modified: | 22 Sep 2014 11:50 |