Method and system for measuring external characters of grafted seedlings based on machine vision

Abstract

The invention relates to a method and system for measuring the external characters of grafted seedlings based on machine vision and aims at enabling the external character parameters of the seedlings to be measured by the provided measuring method without being in contact with the seedlings. The external character parameters of the seedlings can be accurately measured by the provided measuring system. The invention adopts the technical scheme that the method for measuring the external characters of the grafted seedlings based on the machine vision comprises the following steps of: 1, acquiring the image of a whole tray of grafted seedlings in an overhead view direction; 2, calculating the seed and leaf parameter information of all the grafted seedlings in the acquired image of the whole tray of grafted seedlings by an image processing algorithm and sending the parameter information to a controller; 3, acquiring the image of one row of grafted seedlings in a front view direction, calculating the parameter information about the plant height and the long and short axes of the seedling diameter ellipsoid of each grafted seedling in the row of grafted seedlings by the image processing algorithm, and sending the parameter information to the controller; and 4, sequentially acquiring the images of all rows of grafted seedlings in the front view direction and repeating the step 3 until all grafted seedlings are measured.

Description

technical field [0001] The invention relates to the technical field of fruit and vegetable grafting, in particular to a method and system for measuring the external characteristics of grafted seedlings based on machine vision, which can be used to assist a grafting machine to automatically match rootstock seedlings and scion seedlings with corresponding seedling diameters during grafting, so as to improve grafting speed and graft survival. Rate. Background technique [0002] The planting area of ​​vegetables in our country is relatively large, but the mechanization level of grafting operations is not high, especially the level of mechanized equipment for grafting operations is low, which cannot meet the people's growing material living needs. [0003] In recent years, domestic scientific and technological personnel have done key research on grafting machinery, and have achieved initial results; however, there are still many unsolved problems, especially how to improve the ef...

AI Technical Summary

Problems solved by technology

[0004] Obtaining various external characteristic parameters of grafted seedlings is a prerequisite for automatic grafting by the grafting machine. For various external characteristic parameters, the traditional measurement method is contact-based measurement one by one, which is inefficient and easy to damage the seedlings. Therefore, fast non-contact The measurement method has become a research hotspot, among which the research on visual inspection is particularly prominent

Images