Aquatic product parasite ultraviolet fluorescence imaging detection method based on automatic threshold segmentation

A threshold segmentation and detection method technology, applied in image enhancement, image analysis, image data processing and other directions, can solve the problem of unstable detection result performance, lower accuracy of aquatic product parasite discrimination, and difficulty in obtaining consistent and unified detection results. and other problems, to achieve the effect of good consistency, small workload and good accuracy

Active Publication Date: 2015-04-01
OCEAN UNIV OF CHINA
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Problems solved by technology

However, in the actual processing of aquatic products, due to differences in aquatic product shooting environments, imaging equipment, ultraviolet light intensity, production line materials, shooting conditions, etc., it is often difficult to obtain consistent and uniform image segmentation methods based on fixed thresholds. The standard detection effect may lead to unstable detection results and a decrease in the accuracy of parasite identification in aquatic products

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  • Aquatic product parasite ultraviolet fluorescence imaging detection method based on automatic threshold segmentation
  • Aquatic product parasite ultraviolet fluorescence imaging detection method based on automatic threshold segmentation
  • Aquatic product parasite ultraviolet fluorescence imaging detection method based on automatic threshold segmentation

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Embodiment Construction

[0034] In the following, taking the detection of anisakis-based parasites in cod fillets as an example, the specific implementation process of the present invention will be described in detail with reference to the accompanying drawings. The experimental raw materials were frozen pollock (Theragra Chalcogramma) imported from Russia by Qingdao Longhe Company, which was caught from the Northwest Pacific Ocean. The overall process of the present invention is as figure 1 As shown, the specific detailed process is as follows:

[0035] 1. Set the ultraviolet light source in the dark box, install it on the top of the dark box, place the fish fillet sample in the center of the black carrier tray, and generate fluorescence through ultraviolet light irradiation, and use a digital camera to shoot the fish fillet ultraviolet fluorescence image I at a fixed position;

[0036] 2. The fish fillet ultraviolet fluorescence image I is transmitted to the image analysis and processing system through ...

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Abstract

The invention discloses an aquatic product parasite ultraviolet fluorescence imaging detection method based on automatic threshold segmentation. The method comprises the following steps: firstly, irradiating an aquatic product by using ultraviolet light and acquiring an ultraviolet fluorescence image of the aquatic product; secondly, preprocessing the ultraviolet fluorescence image of the aquatic product and then segmenting the aquatic product and a surrounding environment background by using a one-dimensional automatic threshold segmentation technology; thirdly, taking the area of the aquatic product as a background and taking parasites as a target to perform two-dimensional automatic threshold segmentation on the obtained image of the aquatic product area so as to separate the aquatic product area from the parasites; finally, extracting a parasite image from the ultraviolet fluorescence image of the aquatic product. The method disclosed by the invention is simple and rapid in algorithm, small in workload, good in consistency, high in efficiency, good in accuracy, also capable of reducing the labor cost and especially suitable for the requirements on large-scale aquatic product processing and production practices.

Description

Technical field [0001] The invention relates to a method for detecting parasites in aquatic products, belonging to the technical field of non-destructive testing of the quality of aquatic products. Background technique [0002] The detection and identification of parasites and other harmful factors in the production and processing of aquatic products is a key link to improve the quality and safety of aquatic product processing. Anisakid larvae (anisakid larvae) belongs to the Nematode (Nematode) Phasmida (Phasmida) Ascaridida (Ascaridida), is a kind of parasite that is widely distributed in marine animals and has great harm, which seriously affects aquatic products. Edible safety and its potential hazards have aroused widespread concern around the world. [0003] At present, the detection methods of Anisakis mainly include physical methods (candle light method, electromagnetic wave method, ultrasonic method, etc.), biological methods (gene identification, enzyme-linked immunoassay...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0002G06T7/10G06T2207/10064
Inventor 年睿曹立民林洪王昊杨贤林史丛丛陈美美
Owner OCEAN UNIV OF CHINA
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