報告時間：2017年7月8日星期六14:30-17:00
報告地點：西北工業(yè)大學(xué)友誼校區(qū)毅字樓218
邀請單位：軟件與微電子學(xué)院
報告一
題目：Advanced techniques for feature extraction and data analysis in
hyperspectral imaging
報告人：任金昌
報告人單位：英國斯特萊斯克萊德大學(xué)
報告簡介：Although hyperspectral imaging has been widely applied in a number of application areas such as remote sensing, precision agriculture, mining and surveillance, food/drink inspection, pharmaceutical, material, and security. One fundamental problem is feature extraction from the hypercube, which has severely constrained its applicability. In this talk, several key techniques for feature extraction in hyperspectral imaging are reported, including structured PCA, folded-PCA and singular spectrum analysis. Experimental results on several remote sensing datasets are presented to show the efficacy of these techniques.
報告二
題目：Changing Arctic sea ice: the emergence of a dominant Marginal Ice Zone
報告人：Phil (Byongjun) Hwang
報告人單位：英國蘇格蘭海洋科學(xué)協(xié)會
報告簡介：The rapid decline of Arctic sea ice during the past decades is a conspicuous indicator of climate change. This reduced sea ice cover is brining profound changes to the Arctic physical and bio-geo-chemical environments. Satellite observations show that the Marginal Ice Zone (MIZ), a region of low ice concentration area consisting of a relatively disperse collection of small ice floes, has grown. Model projections indicate a growth of the MIZ from 10% to 80% of the summer sea ice cover by 2050. With this emerging MIZ, surface ocean wave increases; sea ice breaks up into smaller floes; deformation of sea ice intensifies; air-ocean momentum transfer increases; upper ocean easily heats up by sun. Current climate models do not have proper parameterizations to describe MIZ processes, which makes it difficult to predict future Arctic sea ice and its cascading effects. In this talk, I present recent research activities on MIZ processes using satellite and autonomous observing technologies. These technologies provide better understanding of MIZ processes and provide the data to calibrate/validate MIZ-related parameterizations in the models.
報告人簡介：
任金昌，英國斯特萊斯克萊德大學(xué)電子工程系高級講師、高光譜圖像中心副主任，分別于1992年、1997年在西北工業(yè)大學(xué)獲計算機軟件專業(yè)學(xué)士學(xué)位和圖像處理和模式識別的碩士學(xué)位，并于2009年獲布拉德福德大學(xué)電子圖像與多媒體通信專業(yè)博士學(xué)位。曾先后在英國多所大學(xué)做研究員，如布拉德福德大學(xué)、薩里大學(xué)、金斯頓大學(xué)和阿伯泰鄧迪大學(xué)。研究領(lǐng)域為圖像處理、智能多媒體信息處理、計算機視覺、基于內(nèi)容的圖像/視頻管理、模式識別、人機交互、運動估計運動補償?shù)阮I(lǐng)域，任教授曾在國際頂尖期刊及會議發(fā)表同行評議論文150余篇。
Phil (Byongjun) Hwang，英國蘇格蘭海洋科學(xué)協(xié)會海洋物理學(xué)家，1991年、1997年在韓國首爾漢陽大學(xué)獲海洋科學(xué)學(xué)時和碩士學(xué)位，并于2008年獲加拿大馬尼托巴大學(xué)博士學(xué)位。他參與了原位微波輻射計和散射儀測量的研究以及海冰微波遙感的應(yīng)用。他參加了涉及散射儀和輻射計測量的北極國際實驗。研究興趣包括高分辨率合成孔徑雷達應(yīng)用，海冰漂移和海冰質(zhì)量平衡等。
