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Evaluating and combining digital video shot boundary detection algorithms

Browne, Paul and Smeaton, Alan F. and Murphy, Noel and O'Connor, Noel E. and Marlow, Seán and Berrut, Catherine (2000) Evaluating and combining digital video shot boundary detection algorithms. In: IMVIP 2000 - Irish Machine Vision and Image Processing Conference, 31 August - 2 September 2000, Belfast, Northern Ireland.

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The development of standards for video encoding coupled with the increased power of computing mean that content-based manipulation of digital video information is now feasible. Shots are a basic structural building block of digital video and the boundaries between shots need to be determined automatically to allow for content-based manipulation. A shot can be thought of as continuous images from one camera at a time. In this paper we examine a variety of automatic techniques for shot boundary detection that we have implemented and evaluated on a baseline of 720,000 frames (8 hours) of broadcast television. This extends our previous work on evaluating a single technique based on comparing colour histograms. A description of each of our three methods currently working is given along with how they are evaluated. It is found that although the different methods have about the same order of magnitude in terms of effectiveness, different shot boundaries are detected by the different methods. We then look at combining the three shot boundary detection methods to produce one output result and the benefits in accuracy and performance that this brought to our system. Each of the methods were changed from using a static threshold value for three unconnected methods to one using three dynamic threshold values for one connected method. In a final summing up we look at the future directions for this work.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Uncontrolled Keywords:Digital Video; Evaluation; Shot Cuts; MPEG-1;
Subjects:Computer Science > Digital video
Computer Science > Information retrieval
DCU Faculties and Centres:Research Initiatives and Centres > Centre for Digital Video Processing (CDVP)
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:336
Deposited On:13 Mar 2008 by DORAS Administrator. Last Modified 03 Feb 2009 16:16

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