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系列学术报告之二梁杰副教授：1.Graphical Model-based View Synthesis Distortion Estimation 2.ApproximateMessage Passing-based Compressed Sensing Reconstruction with GeneralizedElastic Net Prior 应网络与交换技术国家重点实验室宽带网研究中心邀请，西蒙弗雷泽大学梁杰副教授将访问北邮，并做学术报告。报告题目：Graphical Model-based ViewSynthesis Distortion Estimation报告人：梁杰副教授时间：7月7日上午9:30地点：新科研楼610会议室主持人：龚向阳教授学术讲座内容如下：1: Graphical Model-based ViewSynthesis Distortion EstimationIn Depth-image-based rendering(DIBR), a virtual view is synthesized from the textures and depths of thereference views. In this talk, we consider the two DIBR algorithms used in theMPEG View Synthesis Reference Software (MPEG-VSRS), and study the impact of thetransmission error in the reference views on the quality of the synthesizedview. A graphical model is developed to capture the relationship between thereference views and the synthesized view, including the warping competitionoperation in the DIBR algorithms. The probability mass function and theexpected distortion of each synthesized pixel are then calculated in thepresence of packet loss. Experimental results verify the accuracy of theproposed method.2: Approximate MessagePassing-based Compressed Sensing Reconstruction with Generalized Elastic NetPriorIn this talk, we consider thecompressed sensing reconstruction problem with an additional estimation of thesignal available during the reconstruction, which can be viewed as ageneralized elastic net prior. The powerful Approximate MessagePassing (AMP) algorithm is first generalized to incorporate the elastic netprior. Next, based on the corresponding state evolution formula, the asymptoticprediction performance and noise sensitivity of the scheme are derived.Finally, a practical parameterless AMP algorithm is developed. Simulationresults are then presented to verify the efficiency of the proposed method.梁杰教授简历如下：西蒙弗雷泽大学，工程科学学院副教授（终身教职），博士，专业工程师。教育经历：2003年12月，美国约翰霍普金斯大学，电气工程学博士学位；1998年，新加坡国立大学，电气工程学硕士学位；1995年，中国西安交通大学，电气工程学硕士学位；1992年，中国西安交通大学，电气工程学学士学位。工作经历：2010．9至今，副教授（终身教职），西蒙弗雷泽大学，工程科学学院；2012．2—2012.7，洪堡学者，德国，埃朗根-纽伦堡大学；2004．5—2010.8，助理教授，西蒙弗雷泽大学，工程科学学院。研究领域：图像/视频编码和处理，多速率信号处理（小波，滤波器组），信息论，数字通信，机器学习，计算机视觉欢迎全校广大师生踊跃参加。网络与交换技术国家重点实验室 2014年年7月4日 http://portal.bupt.edu.cn//html/main/col38/2014-07/04/20140704160959895164213_1.html