Adaptive filter

Image analysis – Applications – Biomedical applications

Reexamination Certificate

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Details

C382S260000, C348S610000, C378S004000, C378S021000

Reexamination Certificate

active

07440598

ABSTRACT:
In a method and filter and computer product for adaptive filtering of projection data acquired by a medical diagnostic apparatus, raw data-based filtering of the acquired projection data is undertaken using a filter with a filter kernel having a constant filter width, and the filtered projection data are mixed with the acquired projection data with a fixing of the respective quantitative relationships of filtered projection data to acquired projection data ensuing dependent on respective subsets of the acquired projection data.

REFERENCES:
patent: 4009960 (1977-03-01), Feldman et al.
patent: 4571635 (1986-02-01), Mahmoodi et al.
patent: 4590582 (1986-05-01), Umemura
patent: 4682291 (1987-07-01), Reuveni
patent: 5148499 (1992-09-01), Matsumura
patent: 5432716 (1995-07-01), Lebowsky et al.
patent: 5602934 (1997-02-01), Li et al.
patent: 5680426 (1997-10-01), Ching-Ming
patent: 5953461 (1999-09-01), Yamada
patent: 5961460 (1999-10-01), Guracar et al.
patent: 6069979 (2000-05-01), VanMetter
patent: 6115445 (2000-09-01), Lai
patent: 6246783 (2001-06-01), Avinash
patent: 4100262 (1991-07-01), None
patent: OS 198 53 143 (1999-06-01), None
Hou, H.S. Digital Document Processing. John Wiley & Sons: 1983.
Hsieh, Jiang. “Adaptive Trimmed Mean Filter for Computed Tomography Imaging”: Jul. 1994. Proceedings of SPIE. vol. 2299. pp. 316-324.
Souto, M., K.S. Malagari, D. Tucker, P.G. Tahoces, J. Correa, V.S. Bemakis, C. Roussos, K.A. Strigaris, J.J. Vidal, G.T. Barnes, and R.G. Fraser. “Digital Radiography of the Chest: State of the Art”. European Radiology, vol. 4, pp. 281-297 (1994).
Sivaramakrishna, Radhika, Nancy A. Obuchowski, William A. Chilcote, Gilda Cardenosa, na dKimerly A. Powell. “Comparing the Performance of Mammographic Enhancement Algorithms: A Preference Study”. American Roentgen Ray Society, vol. 175, pp. 45-51 (Jul. 2000).
Rogowska, Jadwiga, Kendall Preston, Jr., and Donald Sashin. “Evaluation of Digital Unsharp Masking and Local Contrast Stretching as Applied to Chest Radiographs”. IEEE Transactions on Biomedical Engineering, vol. 35, No. 10, pp. 817-827 (Oct. 1988).
“Digital Document Processing”.
“Generalized Adaptive Median Filters and Their Application in Computed Tomography,” Hsieh, Proc. Of SPIE, vol. 2298 (1994), pp. 662-672.
“Adaptive Trimmed Mean Filter For Computed Tomography Imaging,” Hsieh, Proc. Of SPIE, vol. 2299 (1994), pp. 316,324.
“Adaptive Filtering Approach to the Streaking Artifact Reduction Due to X-ray Photon Starvation,” Hsieh, Radiology vol. 205 (P), (1997), p. 391.

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