Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar
Reexamination Certificate
2007-03-22
2009-10-06
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Synthetic aperture radar
C342S02500R, C342S02500R, C342S159000, C342S194000, C342S196000
Reexamination Certificate
active
07598899
ABSTRACT:
A computer system for compressing synthetic aperture radar (SAR) images includes a database for storing SAR images to be compressed, and a processor for compressing a SAR image from the database. The compressing includes applying an anisotropic diffusion algorithm to the SAR image, and compressing the SAR image after applying the anisotropic diffusion algorithm thereto. Applying the anisotropic diffusion algorithm includes determining noise in the SAR, selecting a noise threshold for the SAR image based on the determined noise, and mathematically adjusting the anisotropic diffusion algorithm based on the selected noise threshold.
REFERENCES:
patent: 6897802 (2005-05-01), Daniell et al.
patent: 7474249 (2009-01-01), Williams et al.
patent: 7508334 (2009-03-01), Allen et al.
patent: 7538712 (2009-05-01), Allen et al.
patent: 2007/0083114 (2007-04-01), Yang et al.
patent: 2009/0015464 (2009-01-01), Fukuda
Lacombe et al., Filtering Interferometric Phase Images by Anisotropic Diffusion, Sep. 14-17, 2003.
Smolka, On the Combined Forward and Backward Anisotropic Diffusion Scheme for the Multispectral Image Enhancement, 2002.
Schulze, An Edge-Enhancing Nonlinear Filter for Reducing Multiplicative Noise, Perceptive Scientific Instruments, Inc., Apr. 1997.
Xi et al., Anisotropic Diffusion Despeckling for High Resolution SAR Images, 25thACRS 2004, Chiang Mai, Thailand, Nov. 2004.
Theoharatos et al., Edge Detection of Multispectral Images Using Nonparametric Local Density Estimation, Proc. Signal Processing, Pattern Recognition and Applications, SPPRA 2003.
Lennon et al., Nonlinear Filtering of Hyperspectral Images with Anisotropic Diffusion, Proceedings of IGARSS, 2002.
Mastriani, New Wavelet-Based Superresolution Algorithm for Speckle Reduction in SAR Images, International Journal of Computer Science, vol. 1, No. 4, 2006.
Marklund, An Anisotropic Evolution Formulation Applied in 2-D Unwrapping of Discontinuous Phase Surfaces, IEEE Transactions on Image Processing, vol. 10, No. 11, Nov. 2001.
Yang et al., Speckle Reduction and Structure Enhancement by Multichannel Median Boosted Anisotropic Diffusion, EURASIP Journal on Applied Signal Processing, 2004.
Yu et al., Speckle Reducing Anisotropic Diffusion, IEEE Transactions on Image Processing, vol. 11, No. 11, Nov. 2002.
Liu et al., SAR Image Compression Using Bandelets and SPIHT, Radar, International Conf. ON, IEEE, PT, Oct. 1, 2006, pp. 1-4.
Perona et al., Scale-Space and Edge Detection Using Anistropic Diffusion, IEEE Transactions On Pattern Analysis And Machine Intelligence, IEEE Service Ctr, vol. 12, No. 7, Jul. 1, 1990, pp. 629-639.
Gorman et al., Assessing The Impact Of Image Compression On SAR Automatic Target Detection and Cuing, Radar Conf. 1996, May 13, 1996, pp. 118-123.
Allen et al., Anistropic Diffusion Techniques On Synthetic Aperture Radar Data, Proceedings of SPIE-The International Society For Optical Engineering, vol. 6547, Apr. 12, 2007, pp. 654703-1.
Sartor et al., Preprocessing Of SAR Interferometric Data Using Anistropic Diffusion Filter, Proceedings of SPIE- The International Society for Optical Engineering, vol. 6568, Apr. 10, 2007, pp. 1-12.
Allen Josef
Ganthier Emile
Rahmes Mark
Winter Matthew
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Harris Corporation
Sotomayor John B
LandOfFree
Method and apparatus for compression of SAR images does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for compression of SAR images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for compression of SAR images will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4095761