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SUMMARY:Formulating Just-Noticeable Difference for Multimedia Signals - We
 isi Lin (Nanyang Technological University)
DTSTART:20171103T120000Z
DTEND:20171103T130000Z
UID:TALK94750@talks.cam.ac.uk
CONTACT:Alexander Simpson
DESCRIPTION:As a result of the evolution\, the human has developed unique 
 characteristics in perception of viewing\, hearing\, smelling\, touching a
 nd tasting. Just Noticeable Difference (JND) refers to the minimal amount 
 of “X” that must be changed for the difference to be sensed by the hum
 an\, where X can be any signal\, derived quantity from signals such as emo
 tion and user-experience\, or even technical specifications such as resolu
 tion\, asynchrony\, accuracy\, etc. “Perception is reality”\, so JND p
 lays an important role both explicitly and implicitly throughout our work 
 and life\, from sound to smell and from engineering to marketing (e.g.\, a
 dvertisement\, logo management\, personalization\, and recommendation). Th
 e scientific measurement and formulation for JND are the prerequisite for 
 user-centric designs and for turning human perceptual sensitivities into m
 any system advantages. In this seminar\, a holistic view will be first pre
 sented on JND research and practice\, followed by an in-depth case study i
 n visual signals. JND modeling for visual signals has attracted much resea
 rch interests so far\, while those for audio\, haptics\, olfaction\, gesta
 tion and other forms of signals are expected to intensify. In essence\, fa
 ctors to influence JND also include utility\, culture and personality\, as
  will be highlighted.  \n \nBio:\nWeisi Lin is an active researcher in ima
 ge processing\, perception-based signal modelling and assessment\, video c
 ompression\, and multimedia communication systems. In the said areas\, he 
 has published 180+ international journal papers and 230+ international con
 ference papers\, 7 patents\, 9 book chapters\, 2 authored books and 3 edit
 ed books\, as well as excellent track record in leading and delivering mor
 e than 10 major funded projects (with over S$6.5m research funding). He ea
 rned his Ph.D from King’s College\, University of London. He had been th
 e Lab Head\, Visual Processing\, in Institute for Infocomm Research (I2R).
  He is a Professor in School of Computer Science and Engineering\, Nanyang
  Technological University\, where he served as the Associate Chair (Gradua
 te Studies) in 2013-2014.  \n \nHe is a Fellow of IEEE and IET\, and an Ho
 norary Fellow of Singapore Institute of Engineering Technologists. He has 
 been elected as a Distinguished Lecturer in both IEEE Circuits and Systems
  Society (2016-17) and Asia-Pacific Signal and Information Processing Asso
 ciation (2012-13)\, and given keynote/invited/tutorial/panel talks to 20+ 
 international conferences during the past 10 years.  He has been an Associ
 ate Editor for IEEE Trans. on Image Processing\, IEEE Trans. on Circuits a
 nd Systems for Video Technology\, IEEE Trans. on Multimedia\, IEEE Signal 
 Processing Letters\, Quality and User Experience\, and Journal of Visual C
 ommunication and Image Representation. He was also the Guest Editor for 7 
 special issues in international journals\, and chaired the IEEE MMTC QoE I
 nterest Group (2012-2014)\; he has been a Technical Program Chair for IEEE
  Int’l Conf. Multimedia and Expo (ICME 2013)\, International Workshop on
  Quality of Multimedia Experience (QoMEX 2014)\, International Packet Vide
 o Workshop (PV 2015)\, Pacific-Rim Conf. on Multimedia (PCM 2012) and IEEE
  Visual Communications and Image Processing (VCIP 2017). He has been award
 ed Zukunftskolleg Mentorship (2014) by University of Konstanz (Germany)\, 
 Distinguished Overseas Professorship (2014) by Xidian University (China)\,
  and High Impact Research (HIR) Icon (2016) by University of Malaya. He ha
 s served as a voting member of 7 IEEE Technical Committees\, and on the IE
 EE ICME Steering Committee (2014-2015). He believes that good theory is pr
 actical\, and has delivered 10 major systems and modules for industrial de
 ployment with the technology developed.\n 
LOCATION:SS03 Meeting Room\, Computer Laboratory
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