Method and device for acquiring plant water deficit level

Abstract

The invention provides a method and device for acquiring the plant water deficit level. The method comprises the steps of 1, acquiring a grayscale image of a leaf; 2, and acquiring the plant water deficit level by using a hybrid deep learning network based on a rectangular image block of the grayscale image. According to the invention, the plant water deficit level is acquired quickly and accurately under the premise of not damaging the plant leaf, thus an appropriate precision irrigation measure can be adopted timely according to the plant water deficit level, and health growth of the plant is ensured. For crops, the yield of the crops and the quality of products can further be ensured according to the invention. In addition, real-time detection for the water deficit level can be performed on small-scale plants on site by applying the method to mobile terminals such as an intelligent mobile phone; and real-time detection for the water deficit level can also be performed on large-scale plants within video monitoring through applying the method to a computer.

Description

technical field [0001] The present invention relates to the technical field of digital image processing, and more specifically, to a method and device for obtaining the water deficit degree of plants. Background technique [0002] For plants, water deficit is when water loss exceeds water uptake. When the plant has a water deficit problem, the water content of the cell tissue will decrease, the turgor pressure will decrease, and the normal metabolism will be out of balance. These phenomena will directly affect the physiological and biochemical processes and morphological structure of the plant, and then affect the growth of the plant. For crops, it will also affect the yield of crops and the quality of fruits, causing economic losses. [0003] In the prior art, the degree of water deficit is mainly obtained by measuring soil moisture, leaf water potential, or leaf relative water content. Among them, the acquisition of soil moisture is mainly measured by inserting a soil m...

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Problems solved by technology

[0005] The present invention provides a method and device for obtaining the water deficit degree of plants to overcome the problems of damage to plant leaves and poor accuracy and poor real-time performance of the obtained water deficit degree in the process of obtaining the water deficit degree of plants in the prior art

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