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Pressure alarm instrument positioning and reading identification method and device

A technology of alarms and instruments, used in character and pattern recognition, instruments, image data processing, etc.

Active Publication Date: 2021-12-10
SOUTH CHINA NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, the purpose of the present invention is to provide a pressure alarm instrument positioning and identification reading method and device, which can eliminate the problems of imaging noise, complex background, tilt, rotation and distortion, etc., accurately locate and classify the target area, and aim at the target area. Accurately identify the area and indicate the number

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  • Pressure alarm instrument positioning and reading identification method and device
  • Pressure alarm instrument positioning and reading identification method and device
  • Pressure alarm instrument positioning and reading identification method and device

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Embodiment Construction

[0056] In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0057] It should be clear that the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present application.

[0058] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms "a", "said" and "the" used in the embodiments of this application and the appended claims are also intended to include ...

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Abstract

The invention relates to a pressure alarm instrument positioning and reading identification method, which comprises the following steps of acquiring an original image, and extracting an instrument image through color identification, wherein theinstrument image comprises a background area and a barometer reading area, obtaining a barometer reading area by performing graphic morphological transformation and contour extraction on the instrument image, and obtaining the areas of a second green area, a second red area and a black area of the barometer reading area through calculation, and obtaining a reading result of the barometer by comparing the areas of the second green area, the second red area and the black area of the barometer reading area. According to the method, the barometer reading area is positioned and read through color identification, the problems of factors such as imaging noise, complex background, inclination, rotation and distortion can be eliminated, the target area is accurately positioned and classified, and the instrument reading is accurately identified for the target area.

Description

technical field [0001] The invention relates to the technical field of industrial instruments, in particular to a pressure alarm instrument positioning and identification reading method and device. Background technique [0002] In order to better supervise the industrial production process and collect data during industrial production, it is generally necessary to equip a large number of instrumentation equipment. At present, many instruments and equipment still use the method of manual reading, which affects the efficiency of industrial production. At the same time, manual reading is also affected by human subjective factors, resulting in poor reading accuracy, which can no longer meet the needs of modern production and development. In addition, due to the wide variety of instruments, manual repetitive work for a long time is prone to visual fatigue, and misjudgment will inevitably occur. With the rapid development of computer vision technology, a lot of research work has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06K9/46G06K9/62G06T5/30G06T5/50G06T7/11G06T7/136G06T7/155G06T7/194G06T7/62G06T7/90
CPCG06T7/11G06T7/136G06T7/155G06T7/194G06T7/62G06T7/90G06T5/30G06T5/50G06T2207/10024G06T2207/20221G06F18/25G06F18/24
Inventor 周娴玮梁浩斌包明豪
Owner SOUTH CHINA NORMAL UNIVERSITY
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