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Broad-leaved plant vein measuring method

A measurement method and technology for broad-leaved plants, applied in the field of broad-leaved plant leaf vein measurement, can solve problems such as difficult identification and limited effect, and achieve the effect of improving accuracy, accurate length and width

Inactive Publication Date: 2015-12-16
HUNAN AGRICULTURAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the color of the veins and the leaf surface is similar, and the color difference between the veins and the leaves is not necessarily uniform, it is often difficult to identify accurately, so the effect of its practical application is greatly limited.

Method used

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  • Broad-leaved plant vein measuring method
  • Broad-leaved plant vein measuring method
  • Broad-leaved plant vein measuring method

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0025] Such as figure 1 , figure 2 Shown, a kind of broad-leaved plant leaf vein measuring method, the concrete steps of this measuring method are as follows:

[0026] a. Fix the leaves of broad-leaved plants on a movable platform;

[0027] b. Use a vertical light source to irradiate the blade, and take a frame of image through the camera, determine the boundary of the blade through the pixel points (x, y) in the image, and calculate the length, width and area of ​​the blade through the boundary coordinates;

[0028] c. Project a band of light at an angle of 45° to the table of the movable platform, and drive the screw to rotate clockwise through the stepping motor to drive the movable platform to move at a constant speed in the horizontal di...

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Abstract

The invention discloses a broad-leaved plant vein measuring method, which comprises the steps of fixing a leaf of a broad-leaved plant onto a movable platform; photographing a frame of leaf images, and calculating the length, width and area of the leaf through boundary coordinates; projecting a beam of ribbon light to the surface of the movable platform at an included angle of 45 degrees, enabling the movable platform to perform uniform motion in a horizontal direction, and calculating the main vein location, length and average width; and projecting a beam of ribbon light to the surface of the movable platform at an included angle of 25 degrees, enabling the movable platform to perform uniform motion in the horizontal direction, obtaining breaking ribbon light images of secondary veins, and doing statistics on the number of secondary veins and the average length by combining the main vein and leaf boundary. The invention is generally applicable to broad-leaved plants, can be used for obtaining a clear vein structure image more efficiently and conveniently, accurately identifying the vein location and estimating the length and width of the veins, and can be effectively applied to vein-related scientific research.

Description

technical field [0001] The invention relates to the technical field of measuring the vein structure of plants, in particular to a method for measuring the veins of broad-leaved plants. Background technique [0002] The veins of plant leaves are important organs of leaves and play an important role in judging the development and growth status of plants. The leaf vein connecting the leaf and the leaf stem is called the main vein. Its width is between 0.5-2mm, and it is the only channel for the leaf to obtain nutrition and water from the root; the other end of the main vein reaches the top of the leaf. Viewed from the front, The main vein is a light green thin line (the color of other parts of the leaf is darker than that), slightly curved (approximately straight); viewed from the back of the leaf, the main vein protrudes about 0.1mm-1mm, and the color is the same as that of other parts of the leaf There is little color contrast. The existing method is to directly acquire the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/02G06T7/00
Inventor 唐少先左志平柏连阳
Owner HUNAN AGRICULTURAL UNIV
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