Li-wei He

Research Software Design Engineer

Email 
Phone 
Fax 
 
lhe At microsoft.com
1-425-703-6259 (*)
1-425-936-7329
(*) A wave file containing the touch tone for the phone number will be played upon clicking.  Hold the mouth piece of your phone close to your computer speaker to dial my number automatically.

I am a Research Software Design Engineer at the Internet Services Research Center (ISRC) at Microsoft Research. In my previous life, I worked on video conferencing, computer vision, and computer graphics related projects.

Publications and Talks

Energy-based Sound Source Localization and Gain Normalization for Ad Hoc Microphone Arrays (PDF), Proceedings of IEEE ICASPP 2007.

Multi-party Audio Conferencing Based on a Simpler MCU and Client-side Echo Cancellation (PDF), Proceedings of ICME 2007.

Real-Time Whiteboard Capture and Processing Using a Video Camera for Remote Collaboration (PDF), IEEE Transactions on Multimedia.

PASS: Peer-Aware Silence Suppression for Internet Voice Conferences (Word, PDF), Proceedings of ICME 2006.

Ping: A Group-To-Individual Distributed Meeting System (Word, PDF), Proceedings of ICME 2006.

Light Weight Background Blurring for Video Conferencing Applications (PDF), Proceedings of ICIP 2006.

Whiteboard Scanning and Image Enhancement (PDF), DSP Journal.

High-Quality Linear Interpolation for Demosaicing of Bayer-Patterned Color Images (Word, PDF), Proceedings of IEEE ICASPP 2004.

Note-Taking with a Camera: Whiteboard Scanning and Image Enhancement (PDF), Proceedings of IEEE ICASPP 2004.

Automating Lecture Capture and Broadcast: Technology and Videography (Word, PDF), ACM/Springer Multimedia Systems Journal.

Why Take Notes? Use the Whiteboard Capture System (Word, PDF), Proceedings of IEEE ICASPP 2003.

Exploring Benefits of Non-Linear Time Compression (Word, PDF), Proceedings of ACM Multimedia 2001.

Building an Intelligent Camera Management System (Word, PDF), Proceedings of ACM Multimedia 2001.

Virtual Cinematography: Theory and Practice for Automatic Real-Time Camera Control and Directing (PowerPoint slides for the graphics course in MSR Beijing on April 29, 2000 and PowerPoint slides for the seminar in Xi'an Jiaotong University on April 24, 2000).

Designing Presentations for On-Demand Viewing (Word, PDF), Proceedings of ACM CSCW 2000.

Comparing Presentation Summaries: Slides vs. Reading vs. Listening (Word, PDF, PowerPoint), Proceedings of ACM CHI 2000

Auto-Summarization of Audio-Video Presentations (Word, PDF, PowerPoint), Proceedings of ACM Multimedia 1999.  The best paper award of the conference.

Rendering with Concentric Mosaics (PDF and Video), Proceedings of ACM SIGGRAPH 1999.

Time-Compression: Systems Concerns, Usage, and Benefits (Word, PDF, PowerPoint), Proceedings of ACM CHI 1999.