Rapid detection and tracking method for navigation ships in bridge area
A ship and bridge technology, applied in the field of rapid detection and tracking of navigable ships in the bridge area, can solve the problems of high calculation cost and expensive equipment, and achieve the effect of improving detection efficiency, automation, accuracy and stability
Pending Publication Date: 2021-11-16
HARBIN INST OF TECH
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Problems solved by technology
[0004] Based on the above deficiencies, the present invention proposes a fast detection and tracking method for navigable ships in bridge areas, which solves the problems of expensive equipment and high calculation costs for the existing identification of navigable ships in bridge areas
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Embodiment 1
[0036] A method for quickly detecting and tracking navigable ships in bridge areas, the steps are as follows:
[0037] After determining the bridge navigable span of the corresponding waterway, the camera is erected. The process of determining the camera erection position includes: the first priority position for erecting the camera is the mid-span position of the navigable span, the second priority position is other positions of the navigable span, and the third priority position is For the position of bridge piers across the navigation bridge, the vertical angle of the camera is the arc tangent value of the bridge height and the warning distance of the bridge area. The principle of determining the horizontal angle is to keep the navigation channel in the center of the image; cross the highway between the 1# pier and 2# pier of the bridge Surveillance cameras are installed on the bridge with a resolution of 1920×1080;
[0038] The data collected by the camera is saved in the ...
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The invention provides a rapid detection and tracking method for navigable ships in a bridge area. The method solves the problems of expensive equipment and high calculation cost required by the existing identification of the navigable ships in the bridge area, and comprises the following steps: arranging a monitoring camera at a bridge key position of a corresponding channel, collecting a channel monitoring video, and marking the channel or river bank position in the video; processing a water surface part in the monitoring image for the key frame by using a sparse representation algorithm to obtain a suspected position of the ship; confirming the suspected ship by using the trained ship discriminator; and establishing a pixel motion equation of navigable ships in the bridge area, performing ship position prediction on all frames by using the motion equation, and meanwhile, correcting the motion equation by using a ship confirmation result of a key frame, so as to detect and track the plurality of navigable ships in the bridge area. The method is convenient and accurate, the accuracy and stability of bridge area ship positioning are improved, and the detection efficiency is effectively improved.
Description
technical field [0001] The invention specifically relates to a fast detection and tracking method for a navigable ship in a bridge area. Background technique [0002] Bridges are the throats in the transportation arteries. In recent years, bridge construction has entered a climax, and more and more bridges have been built and served, which has played a role that cannot be ignored in improving the efficiency of my country's transportation and stimulating the rapid growth of my country's economy. Similarly, shipping has become more and more prosperous with the development of economy and society. With the increase of bridges and the increase in the density of shipping ships, the frequency of ship collision accidents is also increasing. According to incomplete statistics, from 1959 to 2011, there have been more than 140 serious ship collision accidents that caused casualties and major property losses, of which more than 40 occurred in China, and since 2011, the frequency of oc...
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IPC IPC(8): G06K9/00
Inventor 李顺龙郭亚朋徐阳
Owner HARBIN INST OF TECH