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The impact of video transcoding parameters on event detection for surveillance systems

Kafetzakis, Emmanouil, Xilouris, Christos, Kourtis, Michail Alexandros, Nieto, Marcos, Jargalsaikhan, Iveel and Little, Suzanne orcid logoORCID: 0000-0003-3281-3471 (2013) The impact of video transcoding parameters on event detection for surveillance systems. In: IEEE International Symposium on Multimedia, 9-11 Dec 2013, California, USA.

Abstract
The process of transcoding videos apart from being computationally intensive, can also be a rather complex procedure. The complexity refers to the choice of appropriate parameters for the transcoding engine, with the aim of decreasing video sizes, transcoding times and network bandwidth without degrading video quality beyond some threshold that event detectors lose their accuracy. This paper explains the need for transcoding, and then studies different video quality metrics. Commonly used algorithms for motion and person detection are briefly described, with emphasis in investigating the optimum transcoding configuration parameters. The analysis of the experimental results reveals that the existing video quality metrics are not suitable for automated systems, and that the detection of persons is affected by the reduction of bit rate and resolution, while motion detection is more sensitive to frame rate.
Metadata
Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:CCTV; transcoding; event detection; video quality
Subjects:Computer Science > Multimedia systems
Computer Science > Video compression
Computer Science > Digital video
Computer Science > Image processing
DCU Faculties and Centres:Research Initiatives and Centres > INSIGHT Centre for Data Analytics
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:European Framework Programme 7 (Grant 285621), Science Foundation Ireland (CLARITY/INSIGHT)
ID Code:19793
Deposited On:10 Feb 2014 12:01 by Suzanne Little . Last Modified 26 Oct 2018 11:36
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