Method and apparatus for processing SAR images based on a complex anisotropic diffusion filtering algorithm
A computer system for processing complex synthetic aperture radar (SAR) images includes a database for storing complex SAR images to be processed, and a processor for processing a complex SAR image from the database. The processing includes receiving a complex SAR data set for a SAR image comprising...
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| Main Authors | , , |
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| Format | Patent |
| Language | English |
| Published |
15.06.2010
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| Online Access | Get full text |
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| Abstract | A computer system for processing complex synthetic aperture radar (SAR) images includes a database for storing complex SAR images to be processed, and a processor for processing a complex SAR image from the database. The processing includes receiving a complex SAR data set for a SAR image comprising a plurality of pixels, and applying a complex anisotropic diffusion algorithm to the complex SAR data set. The complex SAR data set includes a real and an imaginary part for each pixel. |
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| AbstractList | A computer system for processing complex synthetic aperture radar (SAR) images includes a database for storing complex SAR images to be processed, and a processor for processing a complex SAR image from the database. The processing includes receiving a complex SAR data set for a SAR image comprising a plurality of pixels, and applying a complex anisotropic diffusion algorithm to the complex SAR data set. The complex SAR data set includes a real and an imaginary part for each pixel. |
| Author | Sartor, Kenneth Ganthier, Emile Allen, Josef |
| Author_xml | – sequence: 1 givenname: Kenneth surname: Sartor fullname: Sartor, Kenneth – sequence: 2 givenname: Josef surname: Allen fullname: Allen, Josef – sequence: 3 givenname: Emile surname: Ganthier fullname: Ganthier, Emile |
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| References | Smolka, On the Combined Forward and Backward Anisotropic Diffusion Scheme for the Multispectral Image Enhancement, 2002. Lennon et al., Nonlinear Filtering of Hyperspectral Images with Anisotropic Diffusion, Proceedings of IGARSS, 2002. Z. Yang et al., "Speckle Reduction and Structure Enhancement by Multi-Channel Median Boosted Anisotropic Diffusion"; no date listed; no publication listed. G. Taubin, "Linear Anisotropic Mesh Filtering"; IBM Research Report RC 22213 (W0110-051); Oct. 18, 2001; IBM T.J. Watson Research Center; Yorktown Heights, New York. Y.J. Yu et al., "Speckle Reducing Anisotropic Diffusion"; IEEE Trnasactions of Image Processing; vol. 11, No. 11; Nov. 2002; pp. 1260-1270. Theoharatos et al., Edge Detection of Multispectral Images Using Nonparametric Local Density Estimation, Proc. Signal Processing, Pattern Recognition and Applications, SPPRA 2003. "Introduction on an Experimental Airborne InSAR System", Xiang et al., geoscience and Remote Sensing Symposium, 2005. IGARSS '05. Proceedings, 2005 IEEE International Seoul, Korea, Jul. 25-29, 2005, Piscataway, NJ, USA< IEEE, vol. 7, Jul. 25, 2005, pp. 4809-4812, XP010849550, ISBN: 978-07803-9050-8. S. Foucher et al., "Speckle Filtering of PolSAR and PollnSAR Images using Trace-based Partial Differential Equations"; Proceedings of the IEEE International Conference on Geoscience and Remote Sensing 2006; Jul. 31, 2006 through Aug. 4, 2006; pp. 2545-2548. Schulze, An Edge-Enhancing Nonlinear Filter for Reducing Multiplicative Noise, Perceptive Scientific Instruments, Inc., Apr. 1997. Yang et al., Speckle Reduction and Structure Enhancement by Multichannel Median Boosted Anisotropic Diffusion, EURASIP Journal on Applied Signal Processing, 2004. "Preprocessing of SAR Interferometric Data Using Anisotropic Diffusion Filter", Proceedings of SPIE-The International Society for Optical Engineering: Algorithms for Synthetic Aperture Radar Imagery XIV 2007, vol. 6568, 2007, XP002484722. X. Chen et al., "Anisotropic Diffusion Despeckling for High Resolution SAR Images"; Proceedings of the 25th ACRS of 2004; Chiang Mai, Thailand; pp. 323-328; printed in the year 2004. Lacombe et al., Filtering Interferometric Phase Images by Anisotropic Diffusion, Sep. 14-17, 2003. H.X. Liu et al., "A Complete High-Resolution Coastline of Antarctica Extracted from Orthorectified Radarsat SAR Imagery"; Photogrammetric Engineering & Remote Sensing; vol. 70, No. 5; May 2004; pp. 605-616. Ghosh et al. (2004/0247198) 20041200 "Exploiting Multi-Temporal Information for SAR Images Segmentation" Aspert, Master's Thesis, May 10, 2006, pp. 1-26, EPFL, Lausanne, CH, http://infoscience.epfl.ch/record/91911. Daniell et al. (6897802) 20050500 Ghosh et al. (7277590) 20071000 Yu et al., Speckle Reducing Anisotropic Diffusion, IEEE Transactions on Image Processing, vol. 11, No. 11, Nov. 2002. 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. Shu et al. (7116265) 20061000 C. Lacombe et al., "Filtering Interferometric Phase Images by Anisotropic Diffusion"; IEEE Publication 0-7803-7750-8/03/$17.00; copyright year of 2003; no date; no publication listed. "The Vector Digital TV Filtering and Phase Unwrapping", Wang et al., IGARSS 2003, IEEE 2003 International Geoscience and Remote Sensing Symposium, Proceedings, Toulouse, France, Jul. 21-25, 2003, NY, IEEE, US, vol. 7, pp. 4383-4385, XP010703530. Xi et al., Anisotropic Diffusion Despeckling for High Resolution SAR Images, 25th ACRS 2004, Chiang Mai, Thailand, Nov. 2004. Mastriani, New Wavelet-Based Superresolution Algorithm for Speckle Reduction in SAR Images, International Journal of Computer Science, vol. 1, No. 4, 2006. |
| References_xml | – reference: Lennon et al., Nonlinear Filtering of Hyperspectral Images with Anisotropic Diffusion, Proceedings of IGARSS, 2002. – reference: Lacombe et al., Filtering Interferometric Phase Images by Anisotropic Diffusion, Sep. 14-17, 2003. – reference: Theoharatos et al., Edge Detection of Multispectral Images Using Nonparametric Local Density Estimation, Proc. Signal Processing, Pattern Recognition and Applications, SPPRA 2003. – reference: H.X. Liu et al., "A Complete High-Resolution Coastline of Antarctica Extracted from Orthorectified Radarsat SAR Imagery"; Photogrammetric Engineering & Remote Sensing; vol. 70, No. 5; May 2004; pp. 605-616. – year: 20041200 ident: 2004/0247198 – reference: Yang et al., Speckle Reduction and Structure Enhancement by Multichannel Median Boosted Anisotropic Diffusion, EURASIP Journal on Applied Signal Processing, 2004. – reference: X. Chen et al., "Anisotropic Diffusion Despeckling for High Resolution SAR Images"; Proceedings of the 25th ACRS of 2004; Chiang Mai, Thailand; pp. 323-328; printed in the year 2004. – reference: "The Vector Digital TV Filtering and Phase Unwrapping", Wang et al., IGARSS 2003, IEEE 2003 International Geoscience and Remote Sensing Symposium, Proceedings, Toulouse, France, Jul. 21-25, 2003, NY, IEEE, US, vol. 7, pp. 4383-4385, XP010703530. – reference: "Introduction on an Experimental Airborne InSAR System", Xiang et al., geoscience and Remote Sensing Symposium, 2005. IGARSS '05. Proceedings, 2005 IEEE International Seoul, Korea, Jul. 25-29, 2005, Piscataway, NJ, USA< IEEE, vol. 7, Jul. 25, 2005, pp. 4809-4812, XP010849550, ISBN: 978-07803-9050-8. – reference: 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. – reference: G. Taubin, "Linear Anisotropic Mesh Filtering"; IBM Research Report RC 22213 (W0110-051); Oct. 18, 2001; IBM T.J. Watson Research Center; Yorktown Heights, New York. – reference: Yu et al., Speckle Reducing Anisotropic Diffusion, IEEE Transactions on Image Processing, vol. 11, No. 11, Nov. 2002. – year: 20061000 ident: 7116265 – reference: Z. Yang et al., "Speckle Reduction and Structure Enhancement by Multi-Channel Median Boosted Anisotropic Diffusion"; no date listed; no publication listed. – reference: Smolka, On the Combined Forward and Backward Anisotropic Diffusion Scheme for the Multispectral Image Enhancement, 2002. – reference: C. Lacombe et al., "Filtering Interferometric Phase Images by Anisotropic Diffusion"; IEEE Publication 0-7803-7750-8/03/$17.00; copyright year of 2003; no date; no publication listed. – reference: Schulze, An Edge-Enhancing Nonlinear Filter for Reducing Multiplicative Noise, Perceptive Scientific Instruments, Inc., Apr. 1997. – year: 20050500 ident: 6897802 – reference: Y.J. Yu et al., "Speckle Reducing Anisotropic Diffusion"; IEEE Trnasactions of Image Processing; vol. 11, No. 11; Nov. 2002; pp. 1260-1270. – year: 20071000 ident: 7277590 – reference: "Exploiting Multi-Temporal Information for SAR Images Segmentation" Aspert, Master's Thesis, May 10, 2006, pp. 1-26, EPFL, Lausanne, CH, http://infoscience.epfl.ch/record/91911. – reference: Mastriani, New Wavelet-Based Superresolution Algorithm for Speckle Reduction in SAR Images, International Journal of Computer Science, vol. 1, No. 4, 2006. – reference: S. Foucher et al., "Speckle Filtering of PolSAR and PollnSAR Images using Trace-based Partial Differential Equations"; Proceedings of the IEEE International Conference on Geoscience and Remote Sensing 2006; Jul. 31, 2006 through Aug. 4, 2006; pp. 2545-2548. – reference: Xi et al., Anisotropic Diffusion Despeckling for High Resolution SAR Images, 25th ACRS 2004, Chiang Mai, Thailand, Nov. 2004. – reference: "Preprocessing of SAR Interferometric Data Using Anisotropic Diffusion Filter", Proceedings of SPIE-The International Society for Optical Engineering: Algorithms for Synthetic Aperture Radar Imagery XIV 2007, vol. 6568, 2007, XP002484722. |
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| Snippet | A computer system for processing complex synthetic aperture radar (SAR) images includes a database for storing complex SAR images to be processed, and a... |
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| Title | Method and apparatus for processing SAR images based on a complex anisotropic diffusion filtering algorithm |
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