Image analysis – Applications – Biomedical applications
Reexamination Certificate
2005-08-09
2005-08-09
Mehta, Bhavesh M. (Department: 2625)
Image analysis
Applications
Biomedical applications
C382S130000, C382S256000, C382S263000, C382S268000, C382S269000, C382S275000, C382S279000, C345S613000, C378S004000
Reexamination Certificate
active
06928182
ABSTRACT:
A de-convolution process is applied to an MR, CT or other image (25) of a scanned-object (23) to derive the point-spread function (22′) at an object-edge and to pin-point from the mid-point of its full-width-half-maximum FWHM, the location (30) of the true image-edge. With the object-image (25′) overlying the PSF function (22′) in the de-convolution space, sub-pixels which follow location (30) are transferred to before it to re-construct the image-edge (25′) for sharper conformity to the object-edge (23). Sharp definition of image-contour (37) facilitates accurate determination of area and volume of image profiles (35) and their segmentation. The accurate image-edge definition enables viable correction of geometrical distortion in stand-alone MR diagnosis and treatment planning.
REFERENCES:
patent: 4947323 (1990-08-01), Smith
patent: 4973111 (1990-11-01), Haacke et al.
patent: 5001429 (1991-03-01), Constable et al.
patent: 5150292 (1992-09-01), Hoffmann et al.
patent: 5445155 (1995-08-01), Sieben
patent: 5576548 (1996-11-01), Clarke et al.
patent: 5594767 (1997-01-01), Hsieh
patent: 5784492 (1998-07-01), Cohen et al.
patent: 5790692 (1998-08-01), Price et al.
patent: 6166801 (2000-12-01), Dishon et al.
patent: 6603529 (2003-08-01), Finarov
patent: 2002/0186874 (2002-12-01), Price et al.
patent: 0 159 780 (1985-10-01), None
patent: 2 155 187 (1985-09-01), None
patent: 2 235 779 (1991-03-01), None
patent: 9062836 (1997-03-01), None
patent: 9153141 (1997-06-01), None
Alperin, k. R. Hoffman, Automated analysis of coronary lesions from cineangiograms using vessel tracking and iterative deconvolution techniques, 1999, IEEE,p. 153-156.
Alperin N. et al.: “Automated Analysis of Coronary Lesions from Cineangiograms Using Vessel Tracking and Iterative Deconvolution Techniques” Proceedings of the Computers in Cardiology Meeting, US, Washington, IEEE Comp. Soc. Press, vol. Meeting 16, Oct. 16, 1989 p. 153-156 XO000147033 ISBN: 0-8186-2114-1.
Charland P. et al.: “The Use of Deconvolution and Total Least Squares in Recovering a Radition Detector Line Spread Function” Medical Physics, US, American Institute of Physics, New York, vol. 25, No. 2, Feb. 1998, p. 152-160 XP000833821, ISSN: 0094-2405.
Marsuki Kisworo et al.: “2-D Edge Feature Extraction to Subpixel Accuracy Using the Generalized Energy Approach” Proceeding of the International Conference on EC3-Energy, Computer, Communication and Control Systems (TENCON), US, New York, IEEE, Aug. 2, 1991, p. 344-348 XP000333363 ISBN: 0-7803-0539-.
Choobin Barry
Davis & Bujold P.L.L.C.
Mehta Bhavesh M.
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