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3D modeling with silhouettes

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dc.contributor.advisor Frédo Durand. en_US Rivers, Alec (Alec Rothmyer) en_US
dc.contributor.other Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. en_US 2010-08-31T14:36:15Z 2010-08-31T14:36:15Z 2010 en_US 2010 en_US
dc.description Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010. en_US
dc.description Cataloged from PDF version of thesis. en_US
dc.description Includes bibliographical references (p. 37-39). en_US
dc.description.abstract With the increasing power of computers and the spread of dedicated graphics hardware, 3D content has become ubiquitous in every field, from medicine to video games. However, designing 3D models remains a time-consuming and costly process, so far limited mainly to professionals who have trained extensively with complex modeling suites. We present a new sketch-based modeling approach which aims to make this process simpler and cheaper for professionals, while also making it easy enough for amateurs to use. In our approach, models are interactively designed by drawing their 2D silhouettes from different views. The core idea of our paper is to restrict the input to 2D operations, removing the need to explicitly create or position 3D elements. To create complex shapes, we allow the user to perform CSG operations on silhouettes. We introduce a new algorithm to handle CSG operations that leverages special properties of silhouette cylinders to convert the CSG problem into one that can be handled entirely with 2D operations, making implementation much simpler and more robust. We also introduce a smoothing operator that can generate a smooth shape that matches a set of input silhouettes. We evaluate our approach by using it to model a random sampling of man-made objects taken from the words in WordNet, and show that all of the tested man-made objects are suitable to being modeled quickly and easily using their silhouettes. We also present a user study that demonstrates that novice users are able to use our implemented modeler more effictively than Google SketchUp, a leading commercial 3D modeler also aimed at novice users. en_US
dc.description.statementofresponsibility by Alec Rivers. en_US
dc.format.extent 39 p. en_US
dc.language.iso eng en_US
dc.publisher Massachusetts Institute of Technology en_US
dc.rights M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. en_US
dc.rights.uri en_US
dc.subject Electrical Engineering and Computer Science. en_US
dc.title 3D modeling with silhouettes en_US
dc.type Thesis en_US S.M. en_US
dc.contributor.department Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. en_US
dc.identifier.oclc 635947601 en_US

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