Crop single-root deformable modeling method
A modeling method and single root technology, applied in the field of three-dimensional reconstruction and visualization of crop roots, can solve problems such as high equipment requirements, unconstructed three-dimensional models of crop roots, and inability to accurately describe root hairs, etc., to achieve a high-fidelity effect.
Active Publication Date: 2013-07-24
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Problems solved by technology
[0006] The 3D reconstruction method of crop root system based on measured data has relatively high equipment requirements, and the imaging equipment is expensive, and the crop root system constructed based on measured data can only restore the 3D shape of the main root, and cannot accurately describe details such as root hairs; on the other hand, based on algorithm-generated The regularity of the crop root system is strong, the sense of reality is not high, and each algorithm has certain limitations, and it is impossible to perform three-dimensional modeling of the root system of different crops
The research on image analysis of crop root system is currently limited to the extraction and measurement of root image parameters, which has not been used for the construction of high-realistic 3D model of crop root system
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[0032] Such as figure 1 Shown, a kind of crop single root deformable modeling method, its embodiment comprises the following steps:
[0033] Firstly, a flat-panel scan of a single crop is performed to obtain a single flat-panel scanned image.
[0034] Such as figure 2 As shown, taking the corn root system as an example, the corn root system and the soil were taken out, washed with water to maintain the continuity of the root system, and the washed root system was soaked in methyl violet solution for 2 hours of dyeing. Segment the dyed root system according to the topological structure, scan and image each segmented root with a root flatbed scanner, and the image is marked with the level of the root.
[0035] S1. Perform image preprocessing on the scanned image of a single flat plate to obtain a single skeleton image;
[0036] The single flatbed scanned image is a color image, and the preprocessing includes the following steps: separating the blue channel in the color image...
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The invention provides a crop single-root deformable modeling method, relating to the field of crop root system three-dimensional reconstruction and visualization. The method comprises the following steps of: S1, performing image pretreatment on a single-root plate scanning image to obtain a single-root skeleton image; S2, performing image division on the single-root skeleton image; S3, performing single-root parameter extraction on the divided image; and S4, performing single-root deformable geometric modeling according to the extracted single-root parameter. According to the method provided by the invention, a crop single-root geometric model is established based on the plate scanning image; the established single-root geometric model has higher reality sense and can really reflect the actual growth structure of the crop root system; and the established single-root three-dimensional model can perform geometric deformation on the premise of keeping the main morphological parameters unchanged so as to establish a single-root geometric model with diverse attitudes.
Description
technical field [0001] The invention relates to the field of three-dimensional reconstruction and visualization of crop root systems, in particular to a deformable modeling method for a single crop root. Background technique [0002] Background introduction: The root system of crops is hidden deep in the ground, and it is difficult to directly observe it. Using three-dimensional visualization calculation and visual experience on the computer to characterize the appearance and growth of the root system of crops will help researchers understand the root system more comprehensively and intuitively. Form, structure and function are of great significance. Researchers at home and abroad have carried out extensive work on 3D modeling and visualization of crop root systems. These methods can be divided into two categories: one is 3D modeling of crop root systems based on computer algorithm simulation, and the other is based on measured data. 3D reconstruction of crop roots. [000...
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IPC IPC(8): G06T17/00G06T7/00
Inventor 赵春江温维亮郭新宇王传宇杜建军
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI