Embracing Intelligence in Video Compression

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• Professor Mai Xu, Beihang University
• Wednesday 18 July 2018, 11:00-12:00
• Room 611.

If you have a question about this talk, please contact Melanie M Albright.

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Recently, along with the explosion of multimedia content, visual communications have become increasingly prominent in communication networks, affecting the daily life of billions of citizens and millions of businesses in the world. The amount of data over networks is expected to grow almost 40-fold in the next five years. Given the limited spectrum, video applications have encountered the bandwidth-hungry bottleneck. The pioneering research on delivering the perceived content of human is relieving the bandwidth-hungry issue from the perspective of perceptual compression and coding, in which artificial intelligence (AI) techniques, such as computer vision and machine learning, have been actively studies. In this talk, we mainly focus on perception-inspired video compression, which learns from human intelligence for significantly removing perceptual redundancy of video data. Specifically, our talk first presents our works in data-driven saliency detection, which can be used to explore perceptual redundancy of video. Based on saliency detection, we then discuss our approaches on perception-inspired video compression for dramatically removing redundancy of video compression, such that both bit-rate and complexity can be significantly reduced without any degradation on quality of experience (QoE). Finally, we briefly introduce our latest works in panoramic video (also called 360-degree video) compression, which improves rate-distortion through predicting viewports of panoramic video.

Bio: Mai Xu is an associate professor of school of Electronic and Information Engineering, Beihang University. He is a senior member of IEEE . He received the B.S. degree from Beihang University in 2003, the M.S. degree from Tsinghua University in 2006, and the Ph.D. degree from Imperial College London in 2010. From 2010 to 2012, he was a research fellow with the Electrical Engineering Department, Tsinghua University. Since 2013, he has been with Beihang University as an Associate Professor. From 2013 to 2014, he was also with Tsinghua University as a visiting researcher. From 2014 to 2015, he was a visiting researcher of MSRA . He was a member of technical program committee (TPC) in many international conferences, e.g., ACM MM , ICCVE etc. He has published over 30 technical papers in international journals, including IEEE TPAMI , JSAC, TIP , J-STSP, TMM and TCSVT . He also published over 40 papers in conference proceedings, including CVPR , ICCV, ECCV , DCC and ACM MM . He received young research award of IEEE ICCV in 2015. He was also a recipient of best paper awards of two IEEE conferences, and best paper award finalist of IEEE ICME .

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