Method and apparatus for three-dimensional detection of particles
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United States of America Patent
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Jun 27, 1995
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N/A
app pub date -
Sep 10, 1993
filing date -
Sep 14, 1992
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Abstract
The position, size, structure, and the like of each particle can be accurately detected. Gray image data of a tomographic image group having a clear positional correlation in a sample where particles are distributed is obtained to obtain three-dimensional gray image data of each particle. Binarization of a density of each pixel data of the three-dimensional gray image data is performed to obtain three-dimensional binary image data of each particle. Three-dimensional shrinkage of the three-dimensional binary image data is performed to convert binary image data of each particle to binary image data of only a central point thereof, thereby the position of each particle is three-dimensionally confirmed.
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