NDLI: Face poser: interactive modeling of 3D facial expressions using model priors

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Face poser: interactive modeling of 3D facial expressions using model priors

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Face poser: interactive modeling of 3D facial expressions using model priors

Content Provider	ACM Digital Library
Author	Chai, Jinxiang Xu, Yingqing Shum, Heung-Yeung Lau, Manfred
Abstract	In this paper, we present an intuitive interface for interactively posing 3D facial expressions. The user can create and edit facial expressions by drawing freeform strokes, or by directly dragging facial points in 2D screen space. Designing such an interface for face modeling and editing is challenging because many unnatural facial expressions might be consistent with the ambiguous user input. The system automatically learns a model prior from a prerecorded facial expression database and uses it to remove the ambiguity. We formulate the problem in a maximum a posteriori (MAP) framework by combining the prior with user-defined constraints. Maximizing the posterior allows us to generate an optimal and natural facial expression that satisfies the user-defined constraints. Our system is interactive; it is also simple and easy to use. A first-time user can learn to use the system and start creating a variety of natural face models within minutes. We evaluate the performance of our approach with cross validation tests, and by comparing with alternative techniques.
Starting Page	161
Ending Page	170
Page Count	10
File Format	PDF
ISBN	9781595936240
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-08-03
Publisher Place	Goslar
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Face poser: interactive modeling of 3D facial expressions using model priors

Face poser: Interactive modeling of 3d facial expressions using model priors (2007)

Face poser: interactive modeling of 3D facial expressions using model priors (2007)

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