Three-dimensional extraction method and device for metaxylem vessels of maize nodal roots
A technology of xylem and corn, which is applied in the field of image processing, can solve the problems of time-consuming and labor-intensive sequence images, and achieve the effects of low cost, convenient operation, and avoiding time-consuming and labor-intensive problems
Active Publication Date: 2019-12-17
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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[0005] The present invention provides a three-dimensional extraction method and device for metaxylem conduits of corn nodal roots to overcome the time-consuming and labor-intensive problems of making slices and obtaining sequence images and the time-consuming problem of processing sequence images one by one in the prior art
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[0022] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0023] figure 1 It is a flow chart of a three-dimensional extraction method for postxylem vessels of maize nodal roots according to an embodiment of the present invention. Such as figure 1 As shown, the method includes:
[0024] Step 1, fixing and dehydrating corn nodal roots to obtain corn nodal root samples;
[0025] The nodal root of corn is obtained by intercepting the root system of corn. Due to the low hardness and high water content of the corn root system, it is impossible to scan the corn nodal root directly by micro-CT. Therefore, it is necessary to fix and dehydrate the corn nodal root to reduce the water content of the corn Micro-CT scanning. The fixation...
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The present invention provides a method and an apparatus for three-dimensional extraction of a corn root posterior xylem catheter. The method comprises: Step 1, fixing and dehydrating the corn root to obtain a corn root sample; Step 2, scanning and reconstructing the corn root sample by using the micro-CT, and obtaining a series of two-dimensional reconstructed images of the corn root sample; and Step 3, using the threshold segmentation, connectivity-based topological operations and a morphological method to extract the posterior xylem catheter from the original three-dimensional body constituted by a series of two-dimensional reconstructed images of the corn root sample. According to the method and apparatus provided by the present invention, rapid three-dimensional extraction of posterior xylem catheters can be enabled, the time-consuming and laborious problems of obtaining sequence images by making slices are avoided, and the problem of inefficiency in processing sequence images is avoided.
Description
technical field [0001] The invention relates to the technical field of image processing, and more specifically, to a three-dimensional extraction method and device for metaxylem vessels of corn nodal roots. Background technique [0002] The corn root system is the main organ for the plant to absorb water, and is the key guarantee for the normal growth and development of the plant. The essence of root water absorption is the process that water passes through the root epidermis, cortex, and inner cortex to the xylem vessel of the stele, and is transported upward along the vessel. Among them, metaxylem vessels play an important role in the water transport process. Since the efficiency of root water transport is closely related to the number and size of metaxylem vessels, the extraction and identification of phenotypic information such as the number and size of metaxylem vessels will have important theoretical significance for evaluating the water transport efficiency of roots,...
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IPC IPC(8): G06T7/136G06T7/155G06T17/00
CPCG06T7/136G06T7/155G06T17/00G06T2207/10061G06T2207/10081
Inventor 潘晓迪郭新宇马黎明张颖杜建军王璟璐
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI