主讲人：潘晓川 教授（美国芝加哥大学）

时间： 9月19日（周一）9：30-11：30

地点：第四教学楼301教室

备注：Abstract：In the presentation, discussion will be given for the design and application of optimization-based algorithms to image reconstruction in computed tomographic imaging. The talk will provide insights into the development of reconstruction algorithms tailored to specific requirements of given CT-based imaging scanners and/or applications. Using real-data examples from different CT applications, advanced optimization-based algorithms and their implications for CT-based imaging applications will be illustrated. Recent years, there seems to exist increasing interests in the so-called compressive-sensing (CS) motivated imaging approaches. A number of confusing issues concerning, e.g., conventional sampling theorem and CS, will be clarified. Evaluation of algorithm performance will also be a focus of the presentation. “Mathematic exactness” of an algorithm is often used, unfortunately, as a metric measuring algorithm’s utility. It will be demonstrated that “mathematic exactness” is generally an irrelevant metric for meaningfully assessing an algorithm’s utility in real-world applications. In fact, it will be pointed out that algorithm’s utility is task-specific and should be designed and evaluated accordingly.

潘晓川教授简介：Xiaochuan Pan, Ph.D., is a Professor in the Department of Radiology, Department of Radiation and Cellular Oncology, the College, the Committee on Medical Physics, and the Comprehensive Cancer Center at The University of Chicago. His research interest centers on physics, algorithms, and applications of tomographic imaging. Awards received by Dr. Pan include IEEE EMBS Technical Award and IEEE NPSS Early Achievement Award for his contributions to medical imaging. He is a Fellow of AAPM, AIMBE, IEEE, OSA, and SPIE. Dr. Pan has served, and is serving, as the chair, a charter member, and/or a grant reviewer for funding agencies and foundations such as NIH and NSF, and is currently an associate editor, or an editorial board member, for a number of journals in the field, including IEEE Trans. Med. Imaging, IEEE Trans. Biomed Eng., and Phys. Biol. Med. He has served, and is serving, as a chair or member of numerous technical committees of professional organizations such as IEEE and RSNA, and as a chair of programs, themes, and sessions, or as a technical or a scientific committee chair or member, for conferences such as IEEE EMBC, IEEE MIC, RSNA, AAPM, and MICCIA.