Signal Processing Seminar

Title:  H.265:  Beyond Wavelets and Next Generation Codec

Speaker:  Professor Yoonsik Choe
Yonsei University
Seoul, Korea

Date:  April 23, 2008
Time:  4:00 - 5:00 pm
Where:  2269 Beckman Institute

Abstract:  
Recently, the techniques on digital TV and broadcasting have been dramatically 
developed. These high quality services could be possible due to the recent 
development of codec techniques. For examples, Digital TV broadcasting is 
using MPEG-2 standard, and mobile applications and IPTV are using more 
advanced codec, H.264, etc.  However, even though H.264 is getting popular 
because of its higher compression ratio comparing with MPEG, it has still 
own limitations to be applied to high quality of services, such as HDTV system 
with low complexity through low-bit rate network. Due to these limitations of 
H.264, people recently start to standardize next generation codec, so called, H.265. 
Main goals of this codec are the low complexity by half of H.264’s, the higher 
compression ratio by double, and the error resiliency in network environment. 
Among the possible codec schemes satisfying these requirements, the wavelet-based 
codec schemes have been researched as one of the candidates, because of their 
higher compression ratios and simple implementation.

In this talk, requirements and schedule for H.265 standardization will be discussed, 
and all possible wavelet-based codec schemes for still and motion pictures will 
be mainly discussed and analyzed. Lastly, several other promising codecs such as 
peak transform and order transform codings will be discussed briefly. 

Bio: 
M.S.E  in Systems Engineering,  Case Western Reserve Univ., 1984
M.S.   in Electrical Engineering, Pennsylvania State Univ., State College, 1987
Ph.D   in Electrical Engineering, Purdue University, W. Lafayette, 1990
1990-1993 : Worked at Hyundai Electronic Co., Ltd  as a technical staff to develop 
the world first HDTV Codec system
1993- present :  Working at School of Electrical & Electronic Engineering, Yonsei 
University, Seoul, Korea as now a professor
   : Chairman of School of Electrical & Electronic Eng., Yonsei University
2006- present  : Chairman of Center for Signal Processing Research, Yonsei University
2003- present  : Chairman of planning committee of Korean governmental project on 
‘Next generation DTV/Broadcasting System’