Adaptive compression of computed tomography projection data

Details Adaptive compression of computed tomography projection data Adaptive compression of computed tomography projection data

2008-09-11

2010-12-14

Glick, Edward J (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C382S131000, C382S232000

Reexamination Certificate

active

07852977

ABSTRACT:
A compression subsystem for a computed tomography system compresses projection data to for efficient data transfer and storage. The compression includes applying an attenuation profile to an array of projection data samples. The attenuation profile is a function of sample coordinates and determines attenuation values applied to the samples. The attenuated samples are encoded and packed for data transfer. Alternatively, difference operators are applied to the attenuated samples and the differences are encoded. The average number of bits per compressed sample is monitored and the attenuation profiles can be modified to achieve a desired number of bits per compressed sample. The compressed samples are decompressed prior to image reconstruction processing. Decompression includes decoding the compressed samples and applying a gain profile to the decoded samples to restore the original dynamic range. This abstract does not limit the scope of the invention as described in the claims.

REFERENCES:
patent: 4982415 (1991-01-01), Shibata et al.
patent: 5055821 (1991-10-01), Keller et al.
patent: 5173787 (1992-12-01), Mitani
patent: 5204943 (1993-04-01), Watanabe et al.
patent: 5357549 (1994-10-01), Maack et al.
patent: 5615287 (1997-03-01), Fu et al.
patent: 5703965 (1997-12-01), Fu et al.
patent: 6144772 (2000-11-01), Garland et al.
patent: 6259761 (2001-07-01), Lai
patent: 6292919 (2001-09-01), Fries et al.
patent: 6327327 (2001-12-01), Herold et al.
patent: 6327330 (2001-12-01), Peter
patent: 6343109 (2002-01-01), Doubrava et al.
patent: 6433631 (2002-08-01), Pearson, Jr. et al.
patent: 6470065 (2002-10-01), Lauther
patent: 6560307 (2003-05-01), Marume
patent: 6671755 (2003-12-01), Leahy et al.
patent: 6914957 (2005-07-01), Dafni et al.
patent: 7240251 (2007-07-01), Popescu
patent: 7248641 (2007-07-01), Schilling et al.
patent: 7254210 (2007-08-01), Popescu
patent: 7274765 (2007-09-01), Krumme et al.
patent: 7327866 (2008-02-01), Bae et al.
patent: 7502438 (2009-03-01), Nakagawa et al.
patent: 2002/0031277 (2002-03-01), Lubin et al.
patent: 2003/0095712 (2003-05-01), Christ et al.
patent: 2003/0199757 (2003-10-01), Toth et al.
patent: 2003/0228041 (2003-12-01), Bae et al.
patent: 2004/0022447 (2004-02-01), Mukhopadhyay et al.
patent: 2004/0062341 (2004-04-01), Popescu et al.
patent: 2004/0120564 (2004-06-01), Gines
patent: 2004/0122968 (2004-06-01), Schilling et al.
patent: 2005/0002547 (2005-01-01), Torre-Bueno
patent: 2005/0033882 (2005-02-01), Peyerl et al.
patent: 2005/0163387 (2005-07-01), Sugita
patent: 2006/0291731 (2006-12-01), Schoisswohl
patent: 2007/0065032 (2007-03-01), Hernandez et al.
patent: 2007/0065033 (2007-03-01), Hernandez et al.
patent: 2007/0242798 (2007-10-01), Popescu
patent: 2008/0075213 (2008-03-01), Popescu
patent: 2008/0205446 (2008-08-01), Popescu et al.
patent: 2008/0292168 (2008-11-01), Winkelmann
patent: 2009/0046913 (2009-02-01), Chandra
patent: 2009/0147908 (2009-06-01), Garms
patent: 2009/0169119 (2009-07-01), Wegener
patent: 2010/0061505 (2010-03-01), Wegener et al.
patent: 58019238 (1983-02-01), None
patent: 01093864 (1989-04-01), None
patent: H4-261650 (1992-09-01), None
patent: 06030924 (1994-02-01), None
patent: 07000386 (1995-01-01), None
patent: 08084725 (1996-04-01), None
patent: 10127616 (1998-05-01), None
patent: 2003290216 (2003-10-01), None
patent: WO-2008155200 (2008-12-01), None
PCT Search Report Mailed Mar. 30, 2010 in PCT/US2009/05469, 10 pages.
Wegener, U.S. Appl. No. 11/949,670 entitled “Compression and Decompression of Computed Tomography Data,” filed on Dec. 3, 2007, 28 pages. (SMPL 1009-1).
Wegener, U.S. Appl. No. 12/208,835, filed on Sep. 11, 2008 entitled “Edge Detection for Cmputed Tomography Projection Data Compression,” 32 pages. (SMPL 1015-1).
Wegener, U.S. Appl. No. 12/352,116, filed on Jan. 12, 2009 entitled “Compression and Storage of Projection Data in a Computed Tomography System,” 73 pages. (SMPL 1016- 2A).
Wegener, U.S. Appl. No. 12/352,322, filed on Jan. 12, 2009 entitled “Compression and Storage of Projection Data in a Rotatable Part of a Computed Tomography System,” 71 pages. (SMPL 1016-2B).
Search Report Mailed Jun. 2, 2009 in PCT/US2008/085417 11 pages.
Search Report Mailed Apr. 14, 2010 in PCT/US2009/056475 10 pages.
Search Report Mailed Mar. 30, 2010 in PCT/US2009/056469 10 pages.
Hashimoti, Masayuki, et al., “CT Image Compression with Level of Interest,” 2004 IEEE Int'l Conf. on Image Processing (ICIP), 4 pages.
Manduca, Armando et al., “Histogram transformation for improved compression of CT images,” SPIE vol. 3031 (1997) 320-327.
Thammineni, Arunoday, et al., “Segmentation-based CT Image Compression,” SPIE Vo. 5371 (2004) 160-169.

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