Ongoing Projects:

Project: xLendar (Sept 2008 --)

xLendar is a new event organizer that extends the capability of conventional calendar systems. We are in rapid prototypeing stage and will release the bits out very soon. The bits will base on Windows Mobile 5.0 and above. Stay tuned in News page. 

Project: xKin (Sept 2008 --)

xKin tries to capture the relation among files, especially those derived from the same source, and leverage the relation for better management and search experiences. 

Project: Impression (Aug 2007 -- )

Impression seeks to provide real-time tracking of buddies' current location, and also enable users to publish in realtime their location-related multimedia notes (incl text, audio, picture, video clips). Those keeping an eye on their buddies (by subscription) will get notified once new geo-notes are published.

Finished Major Projects

Project: Draw-in-the-Air (Aug 2007 -- Apr 2008)

Dita performs accurate 3-D indoor localization using acoustic signals. It achieves few centimeters localization accuracy with minimum deployment cost and effort. It requires only a few (> 3) cheap sensor nodes (e.g., a node with a mic and a speaker) and the nodes can be random deployed. Dita further enables simple gesture-based control for the home setting where one can selects the target device using a pointing gesture and further manipulates it with 7 pre-defined gestures. We sent the paper to SenSys'08 and got (5,3,3,3,3) review score, but failed to get in. We decided to publish it here (in pdf).

Project: Throw-to-Share

• Simple and intuitive solution to device pairing and file sharing in ad hoc settings.
• Position-based device identification
• Gesture-based device selection
• Proximity-based security enforcement with demonstrative authentication using audio channel

Project: MobiUS – We, on the Go!

• New better-together mobile application paradigm
• New better-viewing video experience, specially for Lovers
• Novel cross-device collaborative system design

Project: HTTPify – Unleash the power of ISP caches

• Paradigm shift for P2P system design
• Creating win-win situation for P2P system development and ISPs
• Novel cache detection tool
• Novel cache-aware P2P system design algorithm
• Sub-project: Whereis - a practical network coordinate system with passive landmarks

Project: ShortCut – MPEG-2 to WMV transcoder

• Dynamic switch transcoding architecture with 4~7 real-time transcoding speed of SD video.
• Allow 2:1 downscaling when transcoding
• General architecture for arbitrarily resizing transcoding
• Applied ShortCut technologies to PMC sync using Windows Media Player 10.

Project: GAXEL – GPU accelerated video encoding and decoding

• Efficient motion estimation on GPU
• Efficient implementation of DCT/IDCT on GPU

Project: HDoX – High definition WMV decoding over Xbox

• Real-time playback of WMV encoded HD video on the first generation of commercial Xbox.
• Precision control for motion compensation on 8-bit ALU
• GPU assembly optimization

Project: WMV bit stream to MPEG-2 transport stream converter

• Packet scheduling and buffer control of WMV bit stream over MPEG-2 transport.

Project: Peer-to-peer video streaming

• Collaborative peer-to-peer streaming framework for scalable bit streams.
• Better bandwidth utilization and efficient error recovery
• FEC-based multi-colored streaming framework: improved efficiency and reliability

Project: SMART video streaming system

• Optimal packetization for scalable bit stream
• Accurate channel bandwidth estimation
• Rate-distortion for PFGS codec
• Error concealment for FGS/PFGS bit streams