Method and device for quickly estimating fruit yield on tree

Abstract

The invention discloses a method and a device for quickly estimating the yield of fruits on a tree. The method comprises the following steps: A, shooting images of a fruit tree and a reference sphere;B, carrying out image processing on the images of the fruit tree and the reference sphere, segmenting the outline of the fruit on the fruit tree, carrying out circle fitting on the outline of the fruit, and directly carrying out circle generation on the reference sphere according to the central point position and the diameter of the reference sphere; C, calculating the position of the fruit, andestimating the diameter of the fruit according to the position of the fruit, the position of the reference sphere, the diameter of the reference sphere and the proportional relation between the fruitfitting circle and the reference sphere circle; and D, estimating fruit weight according to the estimated fruit diameter, and accumulating the estimated fruit weight on the fruit tree to obtain an estimated fruit yield value on the tree. By adopting the method and the device for quickly estimating the fruit yield on the tree, the continuous and accurate estimation of the fruit yield on the tree can be realized.

Description

technical field [0001] The invention belongs to the agricultural automation technology, in particular to the intelligent image processing and recognition technology in the agricultural automation. Background technique [0002] China is a big fruit producing country, and the cultivated areas of apples, pears, peaches, lychees, kiwis, persimmons, and jujubes all rank first in the world. In many areas of Shandong, Shaanxi, Hebei and other provinces, the fruit tree industry has become a local pillar industry. However, the management level of orchards is relatively backward, and is more restricted by the level of artificial management and natural climate. Therefore, there is great instability in the annual fruit production, which further causes fluctuations in market supply and fruit farmers' income. If the grower can estimate the apple output through some relatively simple methods during the apple growth process, and adjust the production management and sales strategy in time a...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the multi-directionality of fruit tree growth in the prior art, if the image is obtained from one side alone, there will be a large error in the estimation of the yield of a single fruit tree; if the images are obtained from both sides in stages, on the one hand, the efficiency is low, On the other hand, the inconsistency of the center points of the two acquired images will easily lead to more repeated recognition or missing recognition. In addition, due to the large difference in the size of the fruit, most existing methods only predict the yield by the number of fruits, so the yield estimation Due to technical problems such as low precision, the present invention proposes a method and device for quickly estimating fruit yields on trees, which can quickly and accurately estimate the fruit yields of all fruit trees in the entire orchard in large quantities

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