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About

I'm a second-year computer science Ph.D student at School of Computing, Computer Science Department University of Utah and my advisor is Claudio T Silva . My research interests are high performance visualization for large dataset, GPGPU programming and volume rendering.

Resume [pdf]

Background

I have background in Electronic and Telecommunication especially in Robotics , Signal and Image Processing. I have MasterDegree in Electronic and Telecommunication in Vietnam, but now is the time to change. I come to University of Utah fall 2006, and immediately falling in love with Scientific Visualization. I want to get Phd Degree in Computer Graphic, and hopefully I can finish PhD by 2010.

Current Responsbilities

I'm now working as RA in Claudio's VGC group. My research includes Point Cloud processing, Volume rendering, Isosurface extraction.

Research Interests

I like high performance computing especially with GPU, i find there are many amazing things can be done with GPU. I like improve performance of the program and try to improve myself to become a good programmer

Publications

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Robust Smooth Feature Extraction from Point Clouds

Joel II Daniels, Linh K. Ha, Tilo Ochotta, Claudio T. Silva
IEEE International Conference on Shape Modeling and Applications 2007 (SMI '07)).

Defining sharp features in a given 3D model facilitates a better understanding of the surface and aids visualizations, reverse engineering, filtering, simplification, non-photo realism, reconstruction and other geometric processing applications. We present a robust method that identifies sharp features in a point cloud by returning a set of smooth curves aligned along the edges. Our feature extraction is a multi-step refinement method that leverages the concept of Robust Moving Least Squares to locally fit surfaces to potential features. Using Newton’s method, we project points to the intersections of multiple surfaces then grow polylines through the projected cloud. After resolving gaps, connecting corners, and relaxing the results, the algorithm returns a set of complete and smooth curves that define the features. We demonstrate the benefits of our method with two applications: surface meshing and point-based geometry compression
[paper]

Personal

In my free time, I love playing sport and listening to music. My favorite sports are badminton and soccer. I like traveling and taking a lot of pictures every where I come. I love the beauty of natural and human that strengthen my love with graphic

Linh K. Ha