Abnormity detection method for marine culture net cage netting

Abstract

The invention belongs to the technical field of deep sea net cage culture observation, and relates to an abnormity detection method for a marine culture net cage netting, which is used for detecting two states of biological adhesion and damage of the netting, and equipment comprises an underwater robot ROV provided with a camera and a computer. When the marine culture net cage netting is detectedabnormally, the problems of high risk and low efficiency of underwater detection operation are fully considered, an ROV is used as a carrier, and a visual image measurement technology is combined to carry out abnormal alarm on common biological adhesion and netting damage phenomena in marine culture. According to the invention, the ROV is utilized to take a netting image; the image recognition technology of the key frame is tightly combined with the characteristic curve analysis method; the underwater netting abnormity detection system suitable for offshore net cage inspection is flexibly constructed, the reliability of ROV inspection is greatly improved, the risk of marine culture observation, especially deep sea culture observation, is reduced, and the application and popularization of the ROV and image measurement technology in marine culture net cage inspection are greatly promoted.

Description

technical field [0001] The invention belongs to the technical field of cage culture observation in the deep sea, relates to the problem of abnormal detection of net clothing in cages, and particularly relates to an image recognition method for abnormal detection of net clothing. Background technique [0002] The overall health of the cage is of great significance in the breeding process. However, compared with the research on the collection technology of water environment information, the research results of the monitoring and detection technology of the cage are relatively few. First of all, in terms of biofouling detection, at present, the method of regularly changing nets based on breeding experience is widely used to deal with biofouling or regularly washing nets to maintain the normal operation of cage culture, but there is a lack of automatic detection of biofouling and pollution degree assessment process. Secondly, in the detection of net clothing damage [1], experts ...

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Problems solved by technology

[0003] In summary, during the development of fish farming in the past ten years, although experts and scholars have paid attention to the abnormal detection of net cages and nets, and proposed a series of solutions, due to the immaturity of the technology, As a result, engineering application capabilities are still relatively weak

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