Title
Directional Filtering for Sequential Image Analysis
Abstract
Image sequences produced by, e.g., electro-optical sensors are being used increasingly for continuous quality monitoring and surveillance. This letter considers the important problem of multiframe change point detection of signals with unknown dynamics. We propose a new CUSUM-based (cumulative SUM) detector for detecting noise-obscured signals in a sequence of frames. Our sequential detector adopts directional filtering, a search philosophy of interesting pixels, of state-of-the-art detector that employs dynamic programming (DP) for so-called track-before-detect (TBD) processing. In case of a persistent change, a detailed comparison reveals our CUSUM-based detector superior to the DP-based TBD detector.
Year
DOI
Venue
2008
10.1109/LSP.2008.2007616
Signal Processing Letters, IEEE
Keywords
Field
DocType
dynamic programming,filtering theory,image sequences,signal detection,video surveillance,CUSUM-based detector,continuous quality monitoring,directional filtering,dynamic programming,electro-optical sensor,multiframe change point detection,noise-obscured signal detection,sequential image analysis,state-of-the-art detector,surveillance,track-before-detect processing,Dynamic programming,image analysis,sequential detection
CUSUM,Computer vision,Dynamic programming,Electro-optical MASINT,Change detection,Detection theory,Pattern recognition,Computer science,Filter (signal processing),Artificial intelligence,Pixel,Detector
Journal
Volume
ISSN
Citations 
15
1070-9908
2
PageRank 
References 
Authors
0.67
4
4
Name
Order
Citations
PageRank
Juho Vihonen1257.49
Jylha, J.241.45
Ala-Kleemola, T.341.11
Ruotsalainen, M.420.67