About Me
- Name: Tianli (俞天力)
- Location: Foster City, California, United States
I got my Ph.D. degree in Electrical and Computer Engineering from Univ. of Illinois at Urbana-Champaign. From 2006 to 2008, I worked as a senior computer engineer in Embedded Imaging System Group of Motorola Labs. After that I joined Like.com, a cool fashion shopping site based on visual search technology. Like.com was acquired by Google in Aug. 2010, where we launched the brand new social fashion shopping site Boutiques.com. My research interests include 3D reconstruction, stereo vision, image based reflectance and illumination modeling, content based image/video search and retrieval, machine learning and object recognition. Email: tianli_AT_ieee.org My LinkedIn profile
January 2005
Tianli Yu's Courses
Monday, January 31, 2005
Fall 2004: Shape Modeling
This is a seminar type course taugh by CS Professor John C. Hart. The course has a wiki page at CS598JCH. Basically we are discussing about different papers on implicit surface and its usage in modeling shapes in computer graphics.
I did a project on implementing the Siggraph 2004 paper "Interpolating and Approximating Implicit Surfaces from Polygon Soup" and integrate them into the Implicit Surface Library "WickBert" developed here at UIUC.
The paper's idea is to convert a polygon mesh into an implicit function based on moving least square weighting. Turning a polygon mesh into an implicit representation has several advantages. Most importantly, it can repair those defected meshes, such as has holes, not water tight, or has flipped normals.
Figure: Comparsion of the original mesh (left) with holes and the interpolated mesh using implicit surfaces (right)
The compiled binary program as well as the matlab code to extract the isosurface from the volume can be found here
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- posted by Tianli (俞天力) @ 9:28 AM 0 comments
