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　　應(yīng)信息與電子學(xué)院邀請(qǐng)，新加坡南洋理工大學(xué)Weisi LIN副教授于2012年6月13日下午在北京理工大學(xué)4號(hào)教學(xué)樓233室開(kāi)展了“21世紀(jì)學(xué)科前沿”學(xué)術(shù)交流活動(dòng)，作了題為“Perceptual Visual Quality Metrics: Fundamentals, Issues and Recent Developments”的學(xué)術(shù)報(bào)告。報(bào)告會(huì)由信息與電子學(xué)院院長(zhǎng)龍騰教授主持，信息與電子學(xué)院30多位教師和學(xué)生參加了此次報(bào)告會(huì)。

　　報(bào)告中，LIN教授首先介紹了主要討論了圖像質(zhì)量評(píng)價(jià)的重要性，并深入分析了當(dāng)前圖像質(zhì)量評(píng)價(jià)體系（例如MSE、SNR、PSNR、QoS等）與人類(lèi)真實(shí)的視覺(jué)感受存在著很大的差異。以全新的角度從圖像結(jié)構(gòu)、顏色對(duì)比、掩膜影響、視覺(jué)飽和影響和視覺(jué)關(guān)注五個(gè)方面深入探討了人類(lèi)的視覺(jué)特點(diǎn)與圖像質(zhì)量評(píng)價(jià)的關(guān)系，為圖像處理時(shí)對(duì)圖像進(jìn)行不同類(lèi)型或不同情況下進(jìn)行差異化處理，使得計(jì)算資源得到更合理的分配。最后，Lin Weisi副教授與信息與電子學(xué)院的老師和同學(xué)們就報(bào)告內(nèi)容進(jìn)行了熱烈的交流和討論。

　　報(bào)告會(huì)后，趙保軍課題組的孫景樂(lè)博士介紹了離散圓簇算法的原理和在復(fù)雜地物情況下的特征提取和應(yīng)用問(wèn)題；吳京輝博士做了ELM學(xué)習(xí)的機(jī)理和訓(xùn)練問(wèn)題；蔡雨辰博士做了將離散圓簇用于SAR圖像去噪的問(wèn)題；彭州博士做了自適應(yīng)重疊變換壓縮的報(bào)告。另外趙保軍教授陪同林教授參觀(guān)了實(shí)驗(yàn)室和觀(guān)看相關(guān)演示，并進(jìn)行了深入交流。
 

　　此次交流使廣大師生開(kāi)闊了視野，受益匪淺，并對(duì)今后圖像/視頻處理領(lǐng)域的研究提供了很大幫助。

　　Biography: Dr. Weisi Lin graduated from Zhongshan University, China with B.Sc and M.Sc, and from King’s College, London University, UK with Ph.D. He served as the Lab Head and Acting Department Manager in Institute for Infocomm Research (Singapore). He is now an Associate Professor in School of Computer Engineering, Nanyang Technological University, Singapore.He is a senior member of IEEE, a Chartered Engineer, a fellow of the IET and an Honorary Fellow of Singapore Institute of Engineering Technologists. His areas of expertise include perception-inspired signal modeling, perceptual multimedia quality evaluation, video compression, and image processing and analysis; in these areas he has published 190+ refereed journal and conference papers, and been the Principal Investigator of more than 10 major projects (with both academic and industrial funding ofoverS$4m). He currently serves as the Associate Editor for IEEE Trans on Multimedia, IEEE Signal Processing Letters and Journal of Visual Communication and Image Representation. He is the Lead Guest Editor for the recent special issue on New Subjective and Objective Methodologies for Audio and Visual Signal Processing in IEEE Journal of Selected Topics in Signal Processing.

（審核：黨華）