計算機科學技術名家講座
（2014-22）
講座題目：Adaptive Mesh Representation and Processing of Biomedical Images
主 講 人: 餘澤雲博士
美國威斯康星大學密爾沃基分校計算機科學系副教授， 生物醫學建模與可視化實驗室主任
講座時間：2014年8月28日上午9:00
講座地點：前衛南校區計算機大樓Ｂ401會議室
主辦單位：伟德国际BETVlCTOR
伟德国际BETVlCTOR計算機科學技術研究所
伟德国际BETVlCTOR軟件學院
符号計算與知識工程教育部重點實驗室
歡迎廣大師生踴躍參加！
講座摘要:
Biomedical imaging technologies are now widely used in many aspects of science and engineering. Images acquired or computed are commonly digitized into two- or three-dimensional (2D or 3D) regular arrays composed of pixels or voxels respectively. Despite its ease of use and processing on computers, this type of image representation often contains a lot of information redundancy, which poses great challenges to data storage and transmission especially with rapidly increasing resolutions of digital images and growing availabilities of volumetric images. In addition, many pixel-based image processing and analysis algorithms require at least linear time complexity with respect to the number of pixels in an image. Increasing image sizes can become a bottleneck in many real-time applications such as patient diagnosis and remote healthcare systems. For these reasons, finding other image representations that allow less storage space and faster processing speed would be important.
In this talk, I shall present an approach to representing images with irregular meshes. Compared to the traditional pixel-based method, the new representation provides a significantly more compact way to describe an image, which is well suited to storing and transferring large imaging data. The mesh structure of an image is adaptively defined with finer elements near image features. A method will also be presented to restore the pixel-based image with an arbitrary resolution from the mesh representation.
主講人簡介：
Dr. Zeyun Yu received his B.S. in mathematics from Beijing University and Ph.D. in computer science from University of Texas at Austin. He is currently an associate professor in the Department of Computer Science at the University of Wisconsin – Milwaukee (UWM). He established and currently direct the Biomedical Modeling and Visualization lab at UWM. His research, primarily supported by National Institute of Health, involves generating high quality computer simulations and models of biological structures using advanced image processing, computer graphics, and scientific computing methods. Since 2012, Dr. Yu has been serving as an associate editor of the Journal of Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, and on the editorial boards of three other journals. He has co-organized several sessions in international and domestic workshops on image and geometric processing, and has been on the program committees of over ten conferences. Dr. Yu has been an invited reviewer of nearly 30 journals, for his internationally recognized research work published in ~65 journals, conferences or book chapters.
