Method and apparatus for three-dimensional detection of particle

Details Method and apparatus for three-dimensional detection of particle Method and apparatus for three-dimensional detection of particle

1993-09-10

1995-06-27

Dzierzynski, Paul M.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378901, 36441315, 36441316, 364507, 364555, G01N 2300, G01N 2320, G01N 1500

Patent

active

054286557

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.

REFERENCES:
patent: 4548500 (1985-10-01), Wyatt et al.
patent: 4769776 (1988-09-01), Hiraoka et al.
patent: 4884225 (1989-11-01), Fogarty et al.
patent: 4922421 (1990-05-01), Tam
patent: 5365429 (1994-11-01), Carmen

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