Direct parametric object detection in tomographic images

This paper describes a new method of parametric segmentation of tomographic data without actual image reconstruction. It is possible to detect lines, circles, ellipses and other geometric figures from the raw tomographic data itself. If, for instance in non-destructive testing, we are interested in determining faults such as cracks, it is possible to do so without reconstruction and with lesser computation. Experimental results are provided for both simulation and real data. This technique is very useful in non-destructive testing for finding faults in metallic parts.

[1]  S. Deans The Radon Transform and Some of Its Applications , 1983 .

[2]  John C. Wood,et al.  Tomographic time-frequency analysis and its application toward time-varying filtering and adaptive kernel design for multicomponent linear-FM signals , 1994, IEEE Trans. Signal Process..

[3]  Gabor T. Herman,et al.  Image reconstruction from projections : the fundamentals of computerized tomography , 1980 .

[4]  R A Robb,et al.  Difference image reconstruction from a few projections for nondestructive materials inspection. , 1985, Applied optics.

[5]  Richard S. Weiss,et al.  Reconstruction of Surfaces from Profiles , 1987, ICCV 1987.

[6]  Tim Olson,et al.  Wavelet localization of the Radon transform , 1994, IEEE Trans. Signal Process..

[7]  John C. Wood,et al.  Linear signal synthesis using the Radon-Wigner transform , 1994, IEEE Trans. Signal Process..

[8]  Stanley R. Deans,et al.  Hough Transform from the Radon Transform , 1981, IEEE Transactions on Pattern Analysis and Machine Intelligence.

[9]  Ketan Mulmuley,et al.  Computational geometry - an introduction through randomized algorithms , 1993 .

[10]  M E Brummer,et al.  Hough transform detection of the longitudinal fissure in tomographic head images. , 1991, IEEE transactions on medical imaging.

[11]  Erik L. Ritman,et al.  Local tomography , 1992 .

[12]  James G. Sanderson Reconstruction of Fuel Pin Bundles by a Maximum Entropy Method , 1979, IEEE Transactions on Nuclear Science.

[13]  Jean-Philippe Thirion Segmentation of tomographic data without image reconstruction , 1992, IEEE Trans. Medical Imaging.

[14]  K. R. Ramakrishnan,et al.  Detection of edges from projections , 1992, IEEE Trans. Medical Imaging.