Rice leaf shape acquisition device and rice leaf shape parameter extraction method

Abstract

The invention relates to a rice leaf shape acquisition device and a rice leaf shape parameter extraction method. A main body of the rice leaf shape acquisition device comprises a camera, a camera fixing device, a support frame transverse bar, a leaf bearing table, a support frame vertical bar, a support frame regulator, a computer, check paper, a double-faced adhesive tape and a black adhesive tape, wherein the camera is fixed on the support frame transverse bar through the camera fixing device; the leaf bearing table is a black horizontal tabletop; the black adhesive tape is adhered onto the leaf bearing table through the double-faced adhesive tape, and one gluey surface is upward; the support frame vertical bar is fixed in the middle of one side of the leaf bearing table; a distance between the camera and the tabletop can be regulated through the support frame regulator; the camera is directly connected with the computer; 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 stimulation and optimal design of rice plant shapes.

Description

technical field [0001] The invention relates to a data acquisition and parameter extraction method for accurate quantitative description of rice plant shape, in particular to a rice leaf shape image acquisition device and a method for extracting leaf shape curve and leaf area based on image analysis. 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 expression, which...

AI Technical Summary

Problems solved by technology

This method is relatively simple and fast, but it is obviously inaccurate to use a uniform conversion value regardless of leaf shape

A method based on image measurement, designed by Zhang Jinheng (Zhang Jinheng, Wan Yu, Liu Shusheng, Lu Yongliang, Han Chao. A new device for measuring leaf area index: China, 200920154375.8 [P]. 2010-02-24.) The new device for measuring the leaf area index is not convenient for the design of the leaf placement method. Due to the image deformation, the calculation of the leaf area will also have a large error. The extraction of the leaf area based on Photoshop requires human intervention, and the boundary curve of the leaf cannot be extracted.

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