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Dark box for collecting plant leaf surface image information

A technology of image information and plant leaves, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of lack of leaves, unfavorable leaf image information collection, etc., and achieve the effect of segmentation and highlighting the area of ​​interest

Active Publication Date: 2014-08-20
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional image information collection black box is often not conducive to the collection of leaf image information due to the lack of adjustment devices such as leaf leveling, light intensity, and target background color.

Method used

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  • Dark box for collecting plant leaf surface image information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: (collection of image information of dark green vegetable leaf surface)

[0017] A camera obscura for collecting image information on plant leaf surfaces, which includes a cabinet 1, a shade rod 2, a screw handle 3, a shade 4, a white light source 5, a transparent glass 6, a light-isolation cavity 7, ground glass 8, and blades Feeding inlet 9, rubber roller 10, roller crank 11, light rod 12, lead screw 13, CCD camera 14, connecting sleeve 15, positioning plate 16, insertion port 17.

[0018] Among them, the front of the cabinet 1 is equipped with a blackout curtain rod 2 and a blackout curtain 4, and the other five sides are closed; the cabinet 1 is divided into upper and lower layers by 0.6cm thick ground glass 8, in the upper layer: ground glass 8 A positioning plate 16 that is provided with recessed holes on the left and right sides is fixed at the rear of the body, a connecting sleeve 15 is established directly above the plate, and a transparent circle ...

Embodiment 2

[0020] Embodiment 2: (collection of leaf surface image information of light green Chinese cabbage)

[0021] In this example, in order to avoid the influence of strong light on video information due to the light color of cabbage leaves, the intensity of the white light source 5 is reduced to 6000-7000 candela, and two pieces of red cellophane are inserted into the light barrier through the insertion port 17. cavity 7; the rest of the obscura structure and the method of leaf surface image information collection are the same as in embodiment 1.

Embodiment 3

[0022] Embodiment 3: (collection of red maple leaf table image information)

[0023] In this example, the intensity of the white light source 5 is 8,000 to 10,000 candela. Considering that the complementary color of red is light green, a piece of green cellophane is inserted into the light-isolation cavity 7 through the insertion port 17 to increase the contrast between the red leaves and the background area. , which is conducive to extracting the appearance information of red leaves; the rest of the obscura structure and leaf surface image information collection method are the same as in embodiment 1.

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Abstract

The invention discloses a dark box for collecting plant leaf surface image information, which belongs to the technical field of devices for collecting plant image information. The camera obscura includes camera obscura frame, blackout curtain rod, lead screw handle, blackout curtain, white light source, transparent glass, light-proof cavity, thick ground glass, blade feeding port, rubber roller, rubber roller handle, light rod, wire Bars, CCD cameras and connecting sleeves and other components are assembled into a camera device that can be lifted and lowered, a rolling device that can flatten blades, and three systems that can adjust light intensity and light color lighting. The camera obscura is suitable for shooting plant leaves of various specifications and shapes, and has the characteristics of good light source intensity, color tone control, and clear images. The invention can be popularized and applied in agricultural scientific research, colleges and technical departments.

Description

technical field [0001] The invention relates to the technical field of devices for collecting plant image information, in particular to a camera obscura device for collecting plant leaf surface image information, which lays a foundation for quantitative analysis of crop leaf surface image information. Background technique [0002] The condition of crop leaf surface reflects the appearance, health, disease and other information of crops. With the wide application of machine vision technology in the field of agriculture, it has become more and more important to use image processing technology to quantitatively analyze the appearance information of leaves such as shape, color and texture. possible. Obtaining leaf image data with prominent features is the first step in image analysis. There are many factors that affect image data acquisition: such as leaf surface folds and bends are not conducive to the extraction of leaf surface information; external light sources are not condu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B15/06G01N21/84
Inventor 周胜军张鹏朱育强陈新娟陈丽萍
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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