Rice tiller image acquisition device and shape parameter extraction method

Abstract

The invention relates to a rice tiller image acquisition device and a rice leaf vein curve and leaf angle extraction method. A main body of the rice tiller image acquisition device comprises a camera, a support frame, a background board, a computer, a camera fixing device, a regulating plate, a stalk fixing device and check paper, wherein the camera is fixed on the support frame through the camera fixing device, and the height of the camera is regulated through selecting a fixed position; the background board is a black wooden board; the stalk fixing device is a wooden block with an iron hairpin, and a stalk is inserted on the iron hairpin when an image is shot; the regulating plate can regulate a distance between the camera and the background board; the camera is a high-definition network camera and is directly connected with the computer, and a rice tillering image is shot by software provided by the camera; the check paper is a piece of white paper on which a black equidistant grid point is drawn. By the utilization of the device and the method provided by the invention, the rice tiller image acquisition and the rice leaf vein curve and leaf angle extraction are convenient, quick and accurate, hardware and a method are provided for the extraction of rice leaf shapes and parameters, and basic parameters can be provided for the stimulation and the optimal design of rice plant shapes.

Description

technical field [0001] The invention relates to a device and method for collecting and processing data required for accurate quantitative description of rice plant shape, in particular to a device for collecting images of rice single tillers and a method for accurately extracting rice leaf vein curves and leaf angles. Background technique [0002] There have been two breakthroughs in my country's rice production. One is to change the high-stalked rice to short-stalked rice, and the other is to change the short-stalked rice to hybrid rice. improved. The plant type improvement process is divided into two stages. The first stage is dwarf breeding, and the second stage is ideal plant type breeding. The development direction of ideal plant type breeding is to give consideration to both form and function, and to combine ideal plant type with advantage utilization. [0003] Plant type in a broad sense refers to the combination form of comprehensive biological traits and its overall...

AI Technical Summary

Problems solved by technology

The direct measurement method is directly measured with a protractor, and the accuracy is poor; the drawing method is to draw the position of the leaf pillow and leaf tip on the paper, and then measure it with a protractor, which is more accurate but the measurement speed is slow, and it is not suitable for a large number of measurements; oblique point samples The method requires special tools and complex calculations, and is relatively abstract and difficult to popularize

In addition, it is also difficult to measure the base angle, opening angle and drape at the same time with the above method

Xu Zhengjin (Xu Zhengjin, Dong Ke. Simultaneous determination method of rice leaf base angle, opening angle and drape[J]. Journal of Shenyang Agricultural University, 1991, 22(2): 185-187.) designed a method that can simultaneously measure leaf base angle Angle, opening angle and drape are the angles that simplifies the measurement of the leaf angle, however, it does not provide more information on the leaf vein curve, and the ease and quickness of the measurement needs to be further improved

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