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Time sequence image-based ship mark collision automatic detection apparatus and method

An automatic detection device and automatic detection technology, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of subjective influence and achieve the effect of avoiding subjective influence

Inactive Publication Date: 2018-02-23
WUHAN UNIV OF TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing ship mark collision detection methods are manually monitored and detected in the target area, which has subjective influence

Method used

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  • Time sequence image-based ship mark collision automatic detection apparatus and method
  • Time sequence image-based ship mark collision automatic detection apparatus and method
  • Time sequence image-based ship mark collision automatic detection apparatus and method

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0029] The present invention provides a time-series image-based automatic detection device for ship marking, which includes:

[0030] video image acquisition unit, such as figure 1 As shown, the laser night vision integrated PTZ camera system 2 installed on the pontoon of the waterway maintenance base is used to monitor the video images within the visible distance of the waterway 3 day and night. In view of the fact that the maintenance scale of the current channel 3 is mostly within 500 meters, and the collision of navigation marks mostly occurs at night, the laser night vision integrated pan-tilt camera system 2 is selected, which consists of an outdoor medium-sized variable-speed pan-tilt, a large double-cabin shield, and a network control function. Composed of 2 million high-definition fog-penetrating cameras, 36x electric zoom fog-penetrating le...

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Abstract

The invention provides a time sequence image-based ship mark collision automatic detection method. The method comprises the steps of performing down-sampling processing, grayscale processing and binarization processing on a received video image in sequence; by using a Gaussian mixture model, performing foreground and background distinguishing on a current frame after the grayscale processing; performing difference operation with a background model of a continuous time sequence image sequence through the current frame, regarding a part greater than a difference threshold in a difference resultas a motion target region, otherwise, regarding the part as background information; by filtering the motion target region morphologically, selecting an object with a maximum connected region greater than a set value as a suspected ship motion object; and by taking a coincidence degree between the maximum connected region and an alarm region as a judgment standard, judging whether ship mark collision occurs or not. The target region can be automatically monitored and detected, so that the subjective influence is avoided.

Description

technical field [0001] The invention belongs to the field of time-series image processing, and in particular relates to an automatic detection device and method for ship bumping marks based on time-series images. Background technique [0002] The main channel of the Yangtze River is prone to phenomena such as beach and reef submersion during the high water level period, and the safe navigation of ships is facing challenges. Some individual ships are excessively greedy and slow-moving, violating the navigation rules, which can easily lead to damage to the navigation mark, and it is not uncommon for ships to escape after colliding with and damaging the navigation mark. Thousands of buoys are damaged every year in the main channel of the main channel of the Yangtze River, and the direct cost of the loss of buoy equipment exceeds one million yuan; the damage of buoys can easily cause safety accidents for subsequent ships, and then endanger the safety of infrastructure such as th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/34G06K9/62G06K9/38G06K9/40
CPCG06V20/52G06V10/28G06V10/30G06V10/267G06F18/29
Inventor 初秀民钟诚蒋仲廉周雨萌张代勇
Owner WUHAN UNIV OF TECH
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