A method and device for non-destructive monitoring of plug seedling growth based on color and depth information

Abstract

The invention provides a plug seedling growth vigor non-destructive monitoring method and device based on color and depth information. The plug seedling growth vigor non-destructive monitoring methodcomprises the following steps: acquiring a colored image and a depth image of a plug seedling through a Kinect sensor; after carrying out ultra-green processing and communication processing on the colored image, automatically identifying the sprouting rate of the plug seedling; matching the colored image and the depth image to obtain a seedling leaf area which is acquired after a three-dimensionalpoint cloud is reconstructed; after extracting by utilizing form center coordinate depth information, acquiring a plant height of the seedling; carrying out non-destructive automatic monitoring on asound seedling index by adopting a compound index of the seedling leaf area and the plant height. According to the plug seedling growth vigor non-destructive monitoring method provided by the invention, the problems that the sprouting rate of the plug seedling cannot be automatically identified, a plug seedling health judgment manner is too simple when the plug seedling is transplanted and variousindexes cannot be fused to carry out sound seedling selection are solved; the method has relatively high measurement precision on young seedlings with sufficiently-extending leaves and no shielding,and important technical supports are provided for further developing online monitoring equipment of the sprouting rate and growth vigor of the plug seedling of greenhouse vegetables.

Description

Technical field [0001] The invention belongs to the field of visual images, and particularly relates to a method and device for non-destructive monitoring of plug seedling growth based on color and depth information. Background technique [0002] Plug seedling raising is a modern seedling raising technology. It has the advantages of high seedling emergence, good orderliness, short slow seedling period after transplanting, less pests and diseases, saving labor and time, etc. It represents the development direction of seedling raising technology and is welcomed by planters. . However, the monitoring of plug seedlings during the period from germination to transplanting is currently less researched. The lack of this research will directly lead to the use of unhealthy seedlings in later transplanting, which will lead to high crop mortality and low yield of fruits and vegetables. The current research technology only judges the presence or absence of crops in the plug during transplant...

AI Technical Summary

Problems solved by technology

It solves the problem that the germination rate of plug seedlings cannot be automatically identified, and the method of judging the health of plug seedlings is too simple when transplanting plug seedlings, and it is impossible to combine multiple indicators to select strong seedlings

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