Type

Conference Proceedings

Authors

Catherine Berrut
Seán Marlow
Noel E. O'Connor
Noel Murphy
Alan F. Smeaton
Paul Browne

Subjects

Computer Science

Topics
algorithms digital video shot cuts mpeg 1 detection information retrieval content based

Evaluating and combining digital video shot boundary detection algorithms (2000)

Abstract 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.
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> Subject = Computer Science
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: Centre for Digital Video Processing (CDVP)
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Computer Science: Information retrieval
Ireland -> Dublin City University -> Subject = Computer Science: Digital video
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres

Full list of authors on original publication

Catherine Berrut, Seán Marlow, Noel E. O'Connor, Noel Murphy, Alan F. Smeaton, Paul Browne

Experts in our system

1
Noel E. O'Connor
Dublin City University
Total Publications: 449
 
2
Alan F. Smeaton
Dublin City University
Total Publications: 475