Smart card for storage and retrieval of digitally compressed color images
First Claim
Patent Images
1. A smart card for storing a digitally compressed image, the image containing image data consisting of a plurality of scan lines of pixels with scalar values, comprising:
- image data filtered by evaluation of the scalar values of individual pixels in the image with respect to neighboring pixels, said image data being statistically encoded by dividing the image into an array of blocks of pixels, and each block of pixels being encoded into a fixed number of bits that represent the pixels in the block; and
a memory storing said image data.
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Abstract
A smart card having a memory is used for storing color identification image date that is digitally compressed from a photograph, using a relatively small amount of memory for the storage of the image.
75 Citations
80 Claims
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1. A smart card for storing a digitally compressed image, the image containing image data consisting of a plurality of scan lines of pixels with scalar values, comprising:
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image data filtered by evaluation of the scalar values of individual pixels in the image with respect to neighboring pixels, said image data being statistically encoded by dividing the image into an array of blocks of pixels, and each block of pixels being encoded into a fixed number of bits that represent the pixels in the block; and
a memory storing said image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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34. A smart card for storing a digitally compressed color image, the color image containing color image data consisting of a plurality of scan lines of pixels with color values, comprising:
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color image data filtered by evaluation of the color values of individual pixels in the color image with respect to neighboring pixels, said image data being statistically encoded by dividing the color image into an array of blocks of pixels, and each block of pixels being encoded into a fixed number of bits that represent the pixels in the block; and
a memory storing said color image data.
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62. A smart card for storing a digitally compressed color image, the color image containing image data consisting of a plurality of scan lines of pixels with scalar values, comprising:
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image data filtered by evaluation of the scalar values of individual pixels in the image with respect to neighboring pixels;
said image data being statistically encoded by dividing the image into an array of blocks of pixels, and each block of pixels being encoded into a fixed number of bits that represent the pixels in the block by classifying each said block, quantifying each said block, and compressing each said block by codebook compression using minimum redundancy, variable-length bit codes; and
a memory storing said color image data. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. A smart card for storage of a digitally compressed image, comprising:
a datastream of image data stored in block order, the image data consisting of a plurality of scan lines of pixels with scalar values, the image data filtered by evaluating the scalar values of individual pixels in the image with respect to neighboring pixels, and the image data statistically encoded by dividing the image into an array of blocks of pixels, and encoding each block of pixels into a fixed number of bits that represent the pixels in the block. - View Dependent Claims (73, 74, 75, 76, 77, 78, 79, 80)
Specification