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A method and device for early diagnosis of kiwifruit canker disease based on image fusion

A kiwi fruit canker and image fusion technology, applied in image analysis, image enhancement, image data processing, etc., can solve problems such as low signal-to-noise ratio, blurred edges of infrared thermal images, and difficulty in automatic segmentation of canopy area and background area , to achieve fast detection speed, real-time non-destructive testing, and improve the effect of judgment accuracy

Active Publication Date: 2019-01-15
ZHEJIANG UNIV
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Problems solved by technology

However, infrared thermal images have problems such as blurred edges and low signal-to-noise ratio, making it difficult to automatically segment the canopy area from the background area. Due to the above reasons, RGB imaging detection technology is only suitable for diagnosis after plant symptoms appear.
[0007] In summary, it can be seen that there is no effective method and device for early non-destructive detection of kiwifruit canker.

Method used

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  • A method and device for early diagnosis of kiwifruit canker disease based on image fusion
  • A method and device for early diagnosis of kiwifruit canker disease based on image fusion
  • A method and device for early diagnosis of kiwifruit canker disease based on image fusion

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Embodiment Construction

[0058] Such as figure 1 As shown, the device for early diagnosis of kiwi ulcer disease based on image fusion in this embodiment includes: RGB camera 1, distance sensor 2, infrared camera 3, telescopic rod 4, bolt 5, telescopic rod 6, support rod 7, bolt 8. Support rod 9, computer 10, base 11, operating platform 12, and wheels 13.

[0059] There are two universal wheels 13 on the lower left side of the base 11 of the sampling vehicle, and two wheels 14 with brakes on the lower right side, which can realize the movement and fixation of the sampling vehicle in the kiwi orchard; the base 11 is equipped with an upper support rod 7 A lifting rod formed by sleeved connection with the lower support rod 9, the bottom end of the lower support rod 9 is hinged with the base 11, the lifting rod is used for height adjustment, the top of the support rod 7 is hinged with a telescopic rod 6, and the telescopic rod 4 is sleeved in the telescopic rod 6, Composed of a telescopic rod for adjusting th...

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Abstract

Disclosed in the invention is an image-fusion-based early diagnosis method and apparatus for a kiwifruit canker. The method comprises: correction and pretreatment are carried out an infrared thermal image to obtain an image I0; correction and pretreatment are carried out an RGB image to obtain an image V0; image matching and image fusion are carried out on the image I0 and the image V0 to obtain an image F; the image F is segmented by using an algorithm to obtain a fused image F1 of a plant canopy area; a plurality of groups of kiwifruit samples that include kiwifruit with cankers and healthy kiwifruit and are provided with known diagnosis results are selected, images F1 of the kiwifruit samples are collected and a canker determination model is established by using geometric parameters of the images F1 as variables; and then geometric parameters of to-be-tested kiwifruit are introduced into the determination model to carry out early diagnoses. In addition, the invention also discloses an image-fusion-based early diagnosis apparatus for kiwifruit canker. With the method, non-destructive detection can be carried out before development of leaf symptoms of the kiwifruit canker and the operation becomes convenient and rapid.

Description

Technical field [0001] The invention relates to kiwi ulcer diagnosis technology, in particular to a method and device for early diagnosis of kiwi ulcer based on image fusion. Background technique [0002] Bacterial canker disease (P.syringae pv.actinidae, PSA) of kiwifruit plant has seriously threatened the production and development of kiwifruit, and there is no effective cure method at present. Therefore, a rapid and accurate early diagnosis method for kiwi canker is of great significance for the effective prevention and treatment of canker. [0003] Currently, the diagnosis of kiwi ulcer disease mainly relies on molecular biological diagnosis methods. For example, the patent document with application number 201210579896.4 discloses a method for detecting kiwi canker pathogen using loop-mediated isothermal amplification technology, where the method includes DNA extraction of kiwi canker pathogen, LAMP reaction and real-time turbidity detection, and the LAMP reaction uses six pri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T5/50G06T5/00
CPCG06T5/00G06T5/50G06T7/0012G06T2207/10024G06T2207/10048G06T2207/20221G06T2207/30188
Inventor 岑海燕姚洁妮何勇
Owner ZHEJIANG UNIV
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