Welcome to the
homepage of the Leitch-University Multimedia
Communications Laboratory at the University of
Waterloo!
Services For Lab Members
- Our mission: Make a real difference in the theory and practice
of multimedia compression/communications, where publication and
patent filing are only a small
part of the whole process.
- Our activities: Range from lossless compression to lossy
compression, from text compression and image/audio coding to video
coding, from single resolution coding to multi-resolution (scalable)
coding, from 3O (one source, one encoder, and one decoder) coding to
distributed coding and interactive encoding/decoding, from
watermarking to joint watermarking and compression, from joint
source-channel coding to wireless video multicast, and from theory
to algorithms and to practice with real impact.
- Our approach: Emphasize on excellence in both theory and
practice---all our algorithm inventions are based on our original
theoretic breakthroughs.
- Our achievement -- Partial list:
- Grammar-based coding---Regarded as one of the most important
contributions to universal lossless source coding of individual
sequences since 1970s
- Yang-Kieffer (YK) compression algorithms---the state of the art of
universal on-line lossless compression for email and web
acceleration
- Computation approach to lossy compression pioneered along with Ziv
and others, which is in parallel with Shannon's classic
probabilistic approach and arguably has more impact on compression
practice.
- State of the art of GIF/PNG optimizer
- State of the art of JPEG optimizer
- State of the art of H.264 video encoding
- Soft decision quantization (SDQ) and its algorithms for
image and video coding (used in open sources and standards
(existing, de facto, and ongoing)
- Causal video coding theory
- Around 200 patents/patent applications worldwide
- Impact on the daily life of hundreds of millions people
worldwide either through commercialized products, or codec open
sources, or codec standards.
What's new:
- Our lab is
recruiting PH.D. and Postdoc. in the area of Video
Compression.
- The candidates should have
solid background on Video Compression and C/C++
programming.
- Basic understanding of
Information Theory and Coding is required.
- Experience on video standard is recommended.
- Knowledge of Video Conferencing is preferred.
Seminars:
Upcoming Conferences:
Copyright 2004-2010 Multicom Research Lab.
Currently Maintained by Jin Meng
Design by Marta Sitek
Last updated on May 20, 2010
