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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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04-07-2012 дата публикации

Method for measuring diameter of high-temperature steel pipe by using image recognition technology

Номер: CN102538691A
Автор: Qiang Yan, Zhao Juanjuan, Wang Gaoming, Lu Junzuo, Hu Guihai, Wang Haibo, Peng Yanbin, Wang Dan, Wang Jin
Принадлежит:

The invention discloses a method for measuring the diameter of a high-temperature steel pipe by using an image recognition technology. The method comprises the following steps of: placing a metric scale on the same plane where the steel pipe is located, carrying out image pick-up on the steel pipe by adopting a high-definition camera, obtaining a pixel point ratio of the metric scale to the steel pipe after the image processing carried out by a computer, obtaining the diameter of the steel pipe, and finally calculating to obtain the accurate diameter of the cooled steel pipe by using the scaling coefficient of the cooled steel pipe. The method for measuring the diameter of the high-temperature steel pipe by using the image recognition technology has the characteristics that: the cost is saved and the efficiency is increased.

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Номер записи: 1
04-07-2012 дата публикации

Method for measuring temperature of steel pipe by using image color

Номер: CN102539008A
Автор: Zhao Juanjuan, Qiang Yan, Wang Haibo, Lu Junzuo, Wang Gaoming, Wang Jin, Hu Guihai, Wang Dan
Принадлежит:

The invention discloses a method for measuring temperature of a steel pipe by using image color. The method comprises the following steps of: A1, shooting the steel pipes at the same temperature; A2, repeating the step A1 and shooting the steel pipes at different temperature to obtain a large amount of images; A3, denoising all the images, and obtaining boundary counters of the steel pipes in the images by an image boundary treatment algorithm, wherein an area A in the boundary is the steel pipe; A4, obtaining color and temperature corresponding relationship at the temperature T; and A5, acquiring an image of the steel pipe of which temperature is to be measured, and obtaining temperature representative color C(R,G,B) of the steel pipe by the steps A3 and A4, judging which color in a relation array C-T(R,G,B,T) the representative color is close to by using an Euclidean distance, wherein the temperature corresponding to the image with the minimum distance is used as the temperature of the ...

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Номер записи: 2