Method and apparatus for compressing multispectral images

Image analysis – Color image processing – Compression of color images

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C382S232000

Reexamination Certificate

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06879716

ABSTRACT:
The multispectral image compressing method segments a multispectral image into a plurality of tile images, performs principal component analysis on the respective tile images to obtain for each tile image a plurality of sets of principal component vectors and principal component images for the multispectral image, determines from the plurality of sets, for each tile image, an optimum principal component number of sets of optimum principal component vectors and the corresponding optimum principal component images that optimally represent the image information about the multispectral image, whereby the image data for the multispectral image is compressed to the optimum principal component number, the optimum principal component images and the optimum principal component vectors for each tile image, as well as the relevant tile image information.

REFERENCES:
patent: 5513128 (1996-04-01), Rao
patent: 5793884 (1998-08-01), Farrell
patent: 6546146 (2003-04-01), Hollinger et al.
“Practical Transform Coding of Multispectral Image,” John A. Saghri et al, IEEE Signal Processing Magazine, Jan. 1995, pp. 32-43.*
“Information Extraction, SNR Improvement, and Data Compression in Multispectral Imagery,” Patrick J. Ready et al, IEEE Transactions on Communications, vol. COM-21, No. 10, Oct. 1973, pp. 1123-1131.*
“Coding of Spectrally Homogeneous Regions in Multispectral Image Compression,” Gabriel Fernandez et al. Proceedings of International Conference on Image Processing, 1996, May 16-19, 1992, pp. 923-926.*
Multispectral Color System with an Encoding Format Compatible with the Conventional Tristimulus Model:, (Th. Keusen, Journal of Imaging Science and Technology 40: pp. 510-515, 1996).
Partial translation of “Kagaku Keisoku no tameno Hakei Data Shori (Waveform Data Processing for Scientific Measurement)” (S. Minami, pp. 220-225, CQ Publishing Co., 1986.

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