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Measuring method and measuring device for grain true density

A measurement method and a technology of true density, applied in the agricultural field, can solve the problems of poor repeatability of calculation methods, poor accuracy of seed density results, and inability to accurately obtain the volume of a single seed, so as to improve accuracy and calculation efficiency, repeatability good operability

Active Publication Date: 2020-06-09
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Problems solved by technology

[0004] However, neither of these two methods can accurately obtain the volume of a single seed, but can only calculate the average volume of the tested seeds, which leads to the problems of poor accuracy of the obtained seed density results and poor repeatability of the calculation method

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  • Measuring method and measuring device for grain true density
  • Measuring method and measuring device for grain true density
  • Measuring method and measuring device for grain true density

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The following embodiments of the present invention propose a measurement method and a measurement device for the true density of grains.

[0040] The measuring method of the grain true density that the first embodiment of the present invention provides, see figure 1 , the method specifically includes the following steps:

[0041] S10...

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Abstract

The invention provides a grain true density measurement method and measurement device. The method comprises the following steps: obtaining a CT sequence image of a grain and mass of the grain; according to the CT sequence image, reconstructing a voxel model of the grain and obtaining actual volume of the grain; carrying out segmentation on the voxel model through an image segmentation method, andobtaining volume of the grain cavity; calculating effective volume of the grain according to the actual volume of the grain and the volume of the grain cavity; and calculating the true density of thegrain according to the mass of the grain and the effective volume. The method realizes non-destructive, non-invasive and accurate calculation of the cavity volume of the grain, and calculates the truedensity of the grain according to the cavity volume of the grain, thereby improving grain density calculation accuracy and efficiency; and the method is good in repeatability.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method and device for measuring the true density of grains. Background technique [0002] The quality characteristics of seeds directly affect the yield of crops. The quality characteristics of seeds mainly include starch content, fat content, protein composition, grain weight, grain density, grain hardness, and grain moisture content. Among them, starch content, fat content, protein composition, etc. have been widely used in the determination of methods. Seed density is the density obtained from the actual volume and mass of a single seed. [0003] At present, the commonly used methods for measuring the density of seeds are roughly divided into two categories. One is the measuring cylinder method, which measures the volume of liquid displaced by seeds of a certain weight, and then obtains the seed density; the other is the gas specific gravity method, which measures the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/11G01N33/24
CPCG01N33/24G01N2033/245G06T7/0002G06T7/11G06T2207/10081G06T2207/30188
Inventor 郭新宇赵春江张颖杜建军马黎明潘晓迪王璟璐
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI
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