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Automatic staff gauge detection system based on machine vision

An automatic detection and machine vision technology, applied in instruments, computer parts, equipment to reduce ship movement, etc., can solve the problems of high cost, difficult to guarantee the personal safety of staff, poor timeliness, etc. Time-saving and smoother operation, the effect of reducing random errors and human errors

Inactive Publication Date: 2015-11-11
ZHEJIANG OCEAN UNIV
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Problems solved by technology

This method not only has poor timeliness and high cost, but also it is difficult to guarantee the personal safety of the staff.

Method used

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  • Automatic staff gauge detection system based on machine vision

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Embodiment Construction

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0022] The embodiment of the present invention provides a water gauge automatic detection system based on machine vision, such as figure 1 , a water gauge automatic detection system based on machine vision, comprising a binarization processing unit 1, a threshold processing unit 2, an average value processing unit 3, a target image extraction unit 4 and a scale recognition unit 5;

[0023] The binarization processing unit 1 is used to extract a plurality of water gauge images from the collected water gauge video images, and perform channel binarization processing on the HIS color space of the water gauge images;

[0024] The thresholding processing unit 2 is configured to perform thresholding processing on the binar...

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Abstract

The invention relates to an automatic staff gauge detection system based on machine vision. The automatic staff gauge detection system comprises a binarization processing unit, a thresholding processing unit, a mean value processing unit, a target image extraction unit and a scale identification unit, wherein the binarization processing unit extracts staff gauge images from staff gauge video images and carries out binarization processing on the staff gauge images, the thresholding processing unit carries out thresholding processing on the staff gauge images, the mean value processing unit obtains the mean value of all draft data, the target image extraction unit obtains staff gauge number images above the water surface boundary and containing staff gauge numbers, and the scale identification unit calculates the matching assessment value of template sample images. The template sample image corresponding to the maximal image matching assessment value is identified as the waterline scale. The automatic staff gauge detection system measures draft value accurately, conveniently, fast and effectively, and prevents manual observation error.

Description

technical field [0001] The invention relates to the technical field of water gauge measurement, in particular to an automatic water gauge detection system based on machine vision. Background technique [0002] In recent years, with the continuous development of shoreline resources in Zhoushan Port and the increasing dependence of domestic resource-based bulk bulk cargo on foreign countries, the import volume of bulk cargo has increased sharply. In 2011, 127 batches of iron ore were imported, totaling 4.51 million tons, with a value of USD 605.29 million; 157 batches of soybeans, totaling 2.45 million tons, with a value of USD 1,128.66 million; 79 batches of coal, totaling 5.45 million tons, with a value of USD 605.29 million. $580.73 million. In the context of the sharp rise in international raw material prices, the identification of entry-exit inspection and quarantine water gauges is also facing a trend of complexity and refinement. The most critical factor affecting mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46B63B39/12
CPCB63B39/12G06V10/60
Inventor 李博王鹏皓李建强张锋那容
Owner ZHEJIANG OCEAN UNIV
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