Ear-counting method of wheat

A counting method and wheat ear technology, applied in calculation, computer components, instruments, etc., can solve the problems of low counting accuracy and low efficiency, and achieve high computing efficiency and accuracy

Active Publication Date: 2019-01-04
XIJING UNIV
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  • Abstract
  • Description
  • Claims
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  • Ear-counting method of wheat
  • Ear-counting method of wheat
  • Ear-counting method of wheat

Examples

Experimental program
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Embodiment

[0075] First, image acquisition. Use your mobile phone or digital camera to face the wheat field, 80cm away from the ground, adjust the focus and take pictures. The image should be clear and free from shaking and blurring;

[0076] Second, color space conversion. According to the formula (1), the RGB color space of the ear image is converted into the ultra-green band E G The space is convenient for wheat ear segmentation;

[0077] Second, image segmentation and binarization. The image is segmented and binarized by the density-based clustering method proposed by the present invention, so that the ears of wheat are separated from the image alone.

[0078] Next, area filtering. The binarized image is filtered by the area filter proposed by the invention, and the binarized connected regions with too large or too small areas are filtered out.

[0079] Finally, the ears of wheat are counted. Use the formula (7) to complete the counting of ears of wheat.

[0080] In order to v...

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Abstract

The invention provides a method for counting wheat ears, which includes (1) collecting wheat ear image, (2) Converting the color space of the collected wheat ear image; (3) Image segmentation being carried out on the color space converted image, so that the content in the image is divided into three parts: wheat ear, cultivated land, wheat leaf and stem; (4) binarizing the segmented image to separate the ear from the image; (5) filtering the binary image, filtering out the binary connected area which is too large or too small, and then counting the number of wheat ears according to the binaryimage after filtering. The method of the invention establishes a direct mapping relationship from the low-level feature of an image to the number of ears of wheat contained in the image through the color feature, so that the target does not need to be segmented or detected again. This kind of method is more suitable for complex lighting and dense ears of wheat scene, and has higher computational efficiency and accuracy than image segmentation method.

Description

technical field [0001] The invention relates to the technical field of crop growth information measurement, in particular to a method for counting ears of wheat. Background technique [0002] The number of wheat ears per unit area is one of the important factors of wheat yield and planting density. Wheat planting density not only affects the demand for water and fertilizer for wheat growth, but also affects the ventilation and light transmission in the wheat colony, which in turn affects the growth of individual wheat. development, thereby affecting the yield of wheat. Therefore, the number of wheat ears per unit area is one of the important parameters to realize local wheat yield prediction and planting density assessment. [0003] At present, researchers at home and abroad have applied image processing and video monitoring technology to crop growth monitoring, and have done some meaningful research work on wheat yield prediction, especially in the automatic counting of wh...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/34G06K9/46G06K9/62
CPCG06V20/10G06V20/52G06V10/267G06V10/56G06F18/23
Inventor 刘哲张善文黄文准
Owner XIJING UNIV
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