Speaker: Sergey Ablameyko
Title: Dynamic objects motion analysis in video
Time: 10:00 AM, June 29, 2025(Sunday)
Location: Meeting Room 4, East Library
Abstract:
A key area in AI development is the automatic detection and tracking of moving objects in video sequences. This presentation demonstrates an analysis method based on integral optical flow and motion maps, applied to biomedical imaging and video surveillance. The method identifies primary motion patterns (e.g., directional motion, aggregation, dispersion). We applied it to two tasks: living cell motion analysis and crowd motion analysis. For cells, algorithms use the integral optical flow concept to analyze population behavior as a dynamic system, enabling culture monitoring, quantitative dynamic change assessment, and heterogeneity/viability evaluation. For crowds, a novel integral optical flow-based method is proposed for stationary cameras: accumulating basic flows to form the integral flow separates background/foreground and identifies intensive motion regions; statistically analyzing pixel motion quantifies inward/outward moving pixels and comprehensive motion per position. We defined three key crowd motion patterns (directional motion, aggregation, dispersion) and behavioral parameters, including abnormal behavior features. Based on these formalizations, algorithms combining optical flow and CNN were developed for detecting and tracking individuals/crowds in indoor/outdoor scenes. Experimental results on stationary camera videos are presented.
Personal Introduction:
Sergey V. Ablameyko is Professor at Belarusian State University (BSU), Academician of the National Academy of Sciences of Belarus and Academia Europaea, Fellow of IAPR, IEE, and FBEA. Recognized as a global authority in computer vision and image analysis, his research spans deep learning, medical imaging, remote sensing, GIS, supercomputing, and space informatics. He serves as Vice-President of the Asia-Pacific Artificial Intelligence Association (AAIA), formerly held positions as Rector of BSU (2008-2017) and Director General of the United Institute of Informatics Problems, leading Russia-Belarus joint space programs (>$10M budget). Awarded the State Prize of Belarus (2002), Russian Order of Friendship (2009) and 50+ international honors, he has authored 25 books and 750+ papers, supervising 17 PhD/DSc dissertations. He is Editor-in-Chief of Pattern Recognition and Image Analysis, serves on editorial boards of Nonlinear Phenomena in Complex Systems and 10+ journals, and founded the PRIP conference series serving as Chair for 15 editions.
[Editor: Wanqi Liu]