Kok-Lim LOW, Ph.D. (UNC-Chapel Hill)
(Chinese name: 刘国霖)

Assistant Professor

Department of Computer Science
School of Computing
National University of Singapore

Phone: +65 6516-6784
Fax: +65 6779-4580
Email: LOWKL [at] comp.nus.edu.sg

Publications

My research publications and technical reports (updated on 1 August 2007).

Research

My current research focus:

    • 3D Scanning, Reconstruction and Modelling

    • Computational Photography

    • Projector-Based Displays and Rendering

In 3D scanning and 3D reconstruction of real-world environments and objects from range data and images, the process includes using 3D range scanners to acquire range (depth) information, using digital cameras to capture color information, and processing the potentially huge amount of data to reconstruct high-quality and realistic 3D digital models of the environments and objects. Many techniques in computer graphics and computer vision are required to solve problems in the area.

The following images show a 3D digital model of the library in Monticello, home of former U.S. President Thomas Jefferson. The model was reconstructed from range images and color images acquired during a trip to Charlottesville, Virginia. The right image shows the 3D model rendered in full color and the left shows the wireframe. (The model is the result of the Scanning Monticello Project (UNC website, UVA website), a joint project between the Computer Science Department of the University of North Carolina at Chapel Hill and the Computer Science Department of the University of Virginia).

A view of the 3D model reconstructed from range images and color images.

The same view of the 3D model rendered in wireframe.

The range images were captured using a DeltaSphere-3000 3D laser range scanner (NUS School of Computing has recently purchased one for research and teaching purposes). The following images show a range image captured by a DeltaSphere scanner and the 3D mesh model constructed from the range image.

A range image captured by a DeltaSphere 3D laser scanner.

The 3D mesh model constructed from the range image.

Some of my past research areas:

    • Projector-based rendering

    • Image-based rendering

    • Virtual and augmented reality

    • Collision detection

    • Model simplification and level of detail

Teaching

• 2007/2008 Semester 1: CS1101Y -- Programming Methodology (module info)
• 2006/2007 Semester 2: CS4247 -- Image Synthesis and Computer Animation (module info)
• 2006/2007 Semester 1: CS1101Y -- Programming Methodology (module info)
• 2005/2006 Semester 2: CS1101 -- Programming Methodology (module info)
• 2005/2006 Semester 1: CS1101C -- Programming Methodology With C (module info)

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