Method, device and system for measuring oilseed rape laminae and forms of sclerotium scabs synchronously

Abstract

The invention provides a method and a system for measuring oilseed rape laminae and the forms of sclerotium scabs synchronously. The method includes the following steps of: acquiring images of the oilseed rape laminae infected with sclerotiniose; segmenting the acquired image to acquire background gridding images, and calculating pixel counts occupied by unit gridding and pixel counts occupied by unit length; extracting the images of the oilseed rape laminae, and calculating the areas, lengths and widths of the oilseed rape laminae; extracting the images of the sclerotium scabs, and calculating the areas, lengths and widths of the sclerotium scabs; and calculating the proportion of the sclerotium scabs to the integral oilseed rape laminae. The system comprises a gridding background plate, a tectorial membrane, a support, a clamping unit and an image acquisition and processing unit. By the method and the system, the synchronous, quick, accurate and nondestructive measurement of the oilseed rape laminae and the forms of the sclerotium scabs can be realized.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method, a device and a system for synchronously measuring the morphology of rape leaves and sclerotia lesion spots. Background technique [0002] Rapeseed is one of the four major oil crops in the world. Sclerotinia sclerotiorum is a worldwide major disease caused by Sclerotinia sclerotiorum. hazards. Therefore, it is very necessary to accurately evaluate the severity of Sclerotinia sclerotiorum disease for the control, identification of sources of resistance and disease-resistant breeding of Sclerotinia sclerotiorum. The commonly used method for measuring the severity of Sclerotinia sclerotiorum is to grade the severity of the disease according to the size or number of lesions on the diseased leaves. Therefore, objective and accurate measurement of rapeseed leaves and sclerotinia lesion morphology is one of the urgent problems to be solved by rapeseed breeding and test...

AI Technical Summary

Problems solved by technology

[0004] Although the existing manual ruler measurement method is relatively convenient, this method not only has a large workload, but also takes a lot of effort, lacks objectivity and accuracy, and has brought lagging problems to the precision and automatic measurement of rape breeding for a long time. Influence; although the laser leaf area meter method can accurately measure the leaf area, leaf length and leaf width and other parameters of rapeseed leaves, this method needs to remove the rapeseed leaves from the plant and then measure them, causing damage to the plant damage, and this method cannot simultaneously calculate the morphological parameters of sclerotia and lesions; although the digital camera method can measure the shape of rapeseed leaves and sclerotia lesions at the same time, this method is difficult to operate when measuring in vivo, and it is easy to cause image damage. Severe distortion, resulting in serious errors, and this method also needs to import the pictures into the computer and use Photoshop for measurement, and cannot output the morphological parameters of rape leaves and sclerotia lesions in real time

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