The?rstinternationalconferenceonwaveletanalysisanditsapplicationswas heldinChinain1999.Followingthesuccessofthe?rstconference,thesecond- ternationalconference(ICWAA2001)washeldinHongKonginDecember2001. Theobjectiveofthisconferenceistoprovideaforumforresearchersworking onbothwavelettheoryanditsapplications.Byidea-sharinganddiscussionson thestateoftheartinwavelettheoryandapplications,ICWAA2001isaimed tostimulatethefuturedevelopment,explorenovelapplications,andexchange ideasfordevelopingrobustsolutions. ByAugust2001,wehadreceived67fullpaperssubmittedfromallover theworld.Toensurethequalityoftheconferenceandproceedings,eachpaper wasreviewedbythreereviewers.Afterathoroughreviewprocess,theprogram committeeselected24regularpapersfororalpresentationand27shortpapers forposterpresentation.Inadditiontothese24oralpresentations,therewere3 invitedtalksdeliveredbydistinguishedresearchers,namelyProf.JohnDaugman fromCambridgeUniversity,UK,Prof.BrunoTorresanifromInria,France,and Prof.VictorWickerhauser,fromWashingtonUniversity,USA.Wemustadd thattheprogramcommitteeandthereviewersdidanexcellentjobwithina tightschedule.WewishtothankalltheauthorsforsubmittingtheirworktoICWAA2001 andalltheparticipants,whetheryoucameasapresenteroranattendee.We hopethattherewasampletimefordiscussionandopportunitytomakenew acquaintances.Finally,wehopethatyouexperiencedaninterestingandexciting conferenceandenjoyedyourstayinHongKong. October2001 YuanY.Tang,VictorWickerhauser PongC.Yuen,C.H.Li 3 . ! " # $ % & !C. C% -% ! ( .) # * A * A * *C ,#AA2001 ! !, C% ,D 18-20,2001 & ! 13 % , * % , ,C **, , A , % , % % * " * . ! & !C. C% -% ! ! ! B D C * !, ! ! - *: { !/ / %* }@ .$% . .%$ " # $ % # % ! , D % C B 1146,C * . , 63130, A - *: @ %. *. C * ! !- -& * D * D D % B * % $-C &- % % # * * * : *; ! /#AA2001, ! !, C% ,D 18-20,2001.

This book captures the essence of the current state of research in wavelet analysis and its applications, and identifies the changes and opportunities — both current and future — in the field. Distinguished researchers such as Prof John Daugman from Cambridge University and Prof Victor Wickerhauser from Washington University present their research papers.

Wavelet analysis and its applications have been one of the fastest-growing research areas in the past several years. Wavelet theory has been employed in numerous fields and applications, such as signal and image processing, communication systems, biomedical imaging, radar, and air acoustics. Active media technology is concerned with the development of autonomous computational or physical entities capable of perceiving, reasoning, adapting, learning, cooperating, and delegating in a dynamic environment.This book captures the essence of the state of the art in wavelet analysis and its applications and active media technology. At the Congress, invited talks were delivered by distinguished researchers, namely Prof John Daugman of Cambridge University, UK; Prof Bruno Torresani of INRIA, France; Prof Victor Wickerhauser of Washington University, USA, Prof Ning Zhong of the Maebashi Institute of Technology, Japan; Prof John Yen of Pennsylvania State University, USA; and Prof Sankar K Pal of the Indian Statistical Institute, India.

The?rstinternationalconferenceonwaveletanalysisanditsapplicationswas heldinChinain1999.Followingthesuccessofthe?rstconference,thesecond- ternationalconference(ICWAA2001)washeldinHongKonginDecember2001. Theobjectiveofthisconferenceistoprovideaforumforresearchersworking onbothwavelettheoryanditsapplications.Byidea-sharinganddiscussionson thestateoftheartinwavelettheoryandapplications,ICWAA2001isaimed tostimulatethefuturedevelopment,explorenovelapplications,andexchange ideasfordevelopingrobustsolutions. ByAugust2001,wehadreceived67fullpaperssubmittedfromallover theworld.Toensurethequalityoftheconferenceandproceedings,eachpaper wasreviewedbythreereviewers.Afterathoroughreviewprocess,theprogram committeeselected24regularpapersfororalpresentationand27shortpapers forposterpresentation.Inadditiontothese24oralpresentations,therewere3 invitedtalksdeliveredbydistinguishedresearchers,namelyProf.JohnDaugman fromCambridgeUniversity,UK,Prof.BrunoTorresanifromInria,France,and Prof.VictorWickerhauser,fromWashingtonUniversity,USA.Wemustadd thattheprogramcommitteeandthereviewersdidanexcellentjobwithina tightschedule.WewishtothankalltheauthorsforsubmittingtheirworktoICWAA2001 andalltheparticipants,whetheryoucameasapresenteroranattendee.We hopethattherewasampletimefordiscussionandopportunitytomakenew acquaintances.Finally,wehopethatyouexperiencedaninterestingandexciting conferenceandenjoyedyourstayinHongKong. October2001 YuanY.Tang,VictorWickerhauser PongC.Yuen,C.H.Li 3 . ! " # $ % & !C. C% -% ! ( .) # * A * A * *C ,#AA2001 ! !, C% ,D 18-20,2001 & ! 13 % , * % , ,C **, , A , % , % % * " * . ! & !C. C% -% ! ! ! B D C * !, ! ! - *: { !/ / %* }@ .$% . .%$ " # $ % # % ! , D % C B 1146,C * . , 63130, A - *: @ %. *. C * ! !- -& * D * D D % B * % $-C &- % % # * * * : *; ! /#AA2001, ! !, C% ,D 18-20,2001.

This book captures the essence of the current state of research in wavelet analysis and its applications, and identifies the changes and opportunities — both current and future — in the field. Distinguished researchers such as Prof John Daugman from Cambridge University and Prof Victor Wickerhauser from Washington University present their research papers.

Wavelet analysis and its applications have been one of the fastest-growing research areas in the past several years. Wavelet theory has been employed in numerous fields and applications, such as signal and image processing, communication systems, biomedical imaging, radar, and air acoustics. Active media technology is concerned with the development of autonomous computational or physical entities capable of perceiving, reasoning, adapting, learning, cooperating, and delegating in a dynamic environment.This book captures the essence of the state of the art in wavelet analysis and its applications and active media technology. At the Congress, invited talks were delivered by distinguished researchers, namely Prof John Daugman of Cambridge University, UK; Prof Bruno Torresani of INRIA, France; Prof Victor Wickerhauser of Washington University, USA, Prof Ning Zhong of the Maebashi Institute of Technology, Japan; Prof John Yen of Pennsylvania State University, USA; and Prof Sankar K Pal of the Indian Statistical Institute, India.