Monitoring Near-Duplicate Videos Over Continuous Video Streams

Speaker:	Dr. Helen Huang
		University of Queensland

Title:		"Monitoring Near-Duplicate Videos Over Continuous Video
		 Streams"

Date:		Friday, 21 January 2011

Time:		10:30am - 11:30 am

Venue:		Room 3412 (via lifts 17/18), HKUST

Abstract:

Online video steam data is surging to an unprecedented level. Massive
video publishing and sharing impose heavy demands on continuous video
near-duplicate detection for many novel video applications. In this talk,
we will present an accurate and accelerated system for video
near-duplicate detection over continuous video streams. We propose to
transform a high-dimensional video stream into a one-dimensional Video
Distance Trajectory (VDT) to monitor the continuous visual changes of
consecutive frames, based on which video similarity is derived. To avoid
unnecessary sequence similarity computations, an efficient sequence
skipping strategy and an effective indexing structure are also applied.
Extensive experiments on detecting diverse near-duplicates in real video
streams show the superior performance of our system on both effectiveness
and efficiency over existing methods.


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Biography:

Dr. Huang is an Australian Postdoctoral Fellow in School of ITEE, the
University of Queensland. She received her BSc degree from Department of
Computer Science, Tsinghua University, China, and her PhD in Computer
Science from School of ITEE, the University of Queensland. Dr. Huang's
research interests include multimedia search, knowledge discovery, and
bioinformatics. Her recent work on video indexing, search and
near-duplicate retrieval is recognized by top conferences and journals.