Image analysis – Applications – Biomedical applications
Reexamination Certificate
2007-12-03
2010-11-30
Johns, Andrew W (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S239000
Reexamination Certificate
active
07844097
ABSTRACT:
A compression method and subsystem for a CT scanner compresses projection data from the data acquisition system. The projection data are classified into subsets of more significant samples and subsets of less significant samples. The subsets are compressed in accordance with compression control parameters so that the less significant samples are compressed to a greater degree than the more significant samples. The bit rate of the compressed projection data can be monitored and the compression control parameters can be adjusted to provide a desired bit rate. The compressed data are decompressed in accordance with the compression control parameters for reconstruction of an image from the decompressed projection data. 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: 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: 2003/0199757 (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: 2006/0291731 (2006-12-01), Schoisswohl
patent: 2007/0009080 (2007-01-01), Mistretta
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: 2008/0219567 (2008-09-01), Claus et al.
patent: 2008/0292168 (2008-11-01), Winkelmann
patent: 2009/0046913 (2009-02-01), Chandra
patent: 2009/0147908 (2009-06-01), Garms
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: 2007038187 (2007-04-01), None
patent: WO-2008155200 (2008-12-01), None
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.
Wegener, U.S. Appl. No. 12/208,839 entitled “Adaptive Compression of Computed Tomography Projection Data,” filed Sep. 11, 2008, 36 pages.
Wegener, U.S. Appl. No. 12/352,116, filed Jan. 12, 2009 entitled “Compression and Storage of Projection Data in a Computed Tomography System,” 73 pages.
Wegener, U.S. Appl. No. 12/208,835, filed Sep. 11, 2008 entitled “Edge Detection for Cmputed Tomography Projection Data Compression,” 32 pages.
Wegener, U.S. Appl. No. 12/352,322, filed Jan. 12, 2009 entitled “Compression and Storage of Projection Data in a Rotatable Part of a Computed Tomography System,” 71 pages.
Search Report and Written Opinion from PCT/US2008/085417 mailed Jun. 2, 2008, 11 pages.
Bae, Kyongtae T., et al., “CT Data Storage Reduction by Means of Compressing Projection Data Instead of Images: Feasibility Study,” Radiology, vol. 219, No. 3, Jun. 2001, 850-855.
Young, Susan S., et al., “Statistically lossless image compression for CR and DR,” SPIE Vo. 3658, Feb. 1999, 406-419.
Search Report Mailed Mar. 30, 2010 in PCT/US2009/056469 10 pages.
Search Report Mailed Apr. 14, 2010 in PCT/US2009/056475 10 pages.
Hashimoti, Masayuki, et al., “CT Image Compression with Level of Interest,” 2004 IEEE Int'l Conf. on Image Processing (ICIP), 4 pages.
Haynes Beffel & Wolfeld LLP
Johns Andrew W
Koenig Carolyn
Samplify Systems, Inc.
LandOfFree
Compression and decompression of computed tomography data does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compression and decompression of computed tomography data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compression and decompression of computed tomography data will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4230278