Title
Shape filtering for false positive reduction at computed tomography colonography.
Abstract
In this paper, we treat the problem of reducing the false positives (FP) in the automatic detection of colorectal polyps at Computer Aided Detection in Computed Tomography Colonography (CAD-CTC) as a shape-filtering task. From the extracted candidate surface, we obtain a reliable shape distribution function and analyse it in the Fourier domain and use the resulting spectral data to classify the candidate surface as belonging to a polyp or a non-polyp class. The developed shape filtering scheme is computationally efficient (takes approximately 2 seconds per dataset to detect the polyps from the colonic surface) and offers robust polyp detection with an overall false positive rate of 5.44 per dataset at a sensitivity of 100% for polyps greater than 10 mm when it was applied to standard and low dose CT data.
Year
DOI
Venue
2006
10.1007/11866763_11
MICCAI (2)
Keywords
Field
DocType
colonic surface,false positive,reliable shape distribution function,candidate surface,overall false positive rate,computed tomography colonography,automatic detection,low dose ct data,colorectal polyp,robust polyp detection,developed shape,false positive reduction,image processing
False positive rate,Computer vision,Pattern recognition,Computer science,Filter (signal processing),Computed Tomography Colonography,Spectral density,Spectral data,Artificial intelligence,Colorectal Polyp,False positive paradox,Radiographic Image Enhancement
Conference
Volume
Issue
ISSN
9
Pt 2
0302-9743
ISBN
Citations 
PageRank 
3-540-44727-X
1
0.44
References 
Authors
3
4
Name
Order
Citations
PageRank
Abhilash A Miranda110.44
Tarik A. Chowdhury2173.12
Ovidiu Ghita323418.12
Paul F. Whelan456139.95