空気試料の自動分析を実行するためのシステム及び方法

Japanese Patent JP6975474

B2

A system and method for automated analysis of a membrane filter obtained from an air quality monitoring apparatus used for sampling airborne respirable fibres such as asbestos and synthetic mineral fibres is described. The system comprises capturing a macroscale image a membrane filter and analysing macroscale image using a computer vision method to determine a countable area of the membrane filter and one or more excluded regions within the countable area of the membrane filter. These excluded regions comprise membrane filter grid lines, air bubbles and large particulate matter. The slide is then placed on a robotic XY stage of a digital phase contrast microscope which is used to capture at least one magnified phase contrast image at each of 20 or more sample locations located across the filter member. The sample locations are selected such that a field of view at each sample location does not contain an excluded region. The magnified phase contrast images are analysed using a computer vision method to identify and count the number of fibres in the field of view, and the total number of fibres is then reported.

JPS63255651	SOOT DETECTOR
WO/1994/029707	MICROLITHOGRAPHIC ARRAY FOR MACROMOLECULE AND CELL FRACTIONATION

Gallagher-Gruber, Jordan
Shartow, Garbol

JP2019521832A

December 01, 2021

October 20, 2017

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FIRST FRONTIER PTY LTD

G01N15/02; G01N15/06; G02B21/36; G06V10/40

JP2007218641A
JP201133472A

US20160116404
EP1986155A2
KR10201275836A
KR102012129383A
US4618938

Shigeru Ito
Yusuke Ebi

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