Farmland transplanting detection method and system based on image processing

Abstract

The invention discloses a farmland transplanting detection method based on image processing, and relates to the field of farmland transplanting. The method comprises that a shooting image of a target farmland is collected; the shooting image is binarized to obtain a seedling contour; position coordinates of seedlings are obtained according to the seedling contour; according to geometric position relation of the seedlings, the area of farmland occupied by the seedlings is obtained, and a density distribution function of the seedlings is obtained; and according to the density distribution function of the seedlings, the transplanting quality of the farmland is evaluated, or the total transplanting density value of the farmland is evaluated. The invention also discloses a farmland transplanting detection system based on image processing, and the system comprises an image collection module, a seedling coordinate construction module, a seedling density distribution construction module and a seedling transplanting evaluation module. According to the system and method, the transplanting quality can be back fed rapidly, working parameters of a transplanter can be adjusted and controlled timely, the efficiency of agricultural production is improved, and the yield of crops is improved.

Description

Technical field [0001] The invention relates to the field of rice transplanting in farmland, in particular to a method and system for detecting rice transplanting in farmland based on image processing. Background technique [0002] Practice has proved that proper sparse planting of rice can increase rice yield, which has become an indisputable fact. Rice is a high-tiller crop, and the number of tillers varies greatly due to environmental conditions. In high-density cultivation, tillers may not be produced; if the density is low, each rice plant has enough space, and with corresponding water and fertilizer conditions, generally each rice plant can produce a dozen or even dozens of tillers. Therefore, regulating the relationship between tillering and growth is one of the important technical measures for high-yield rice cultivation. [0003] Due to the vast territory of our country, the climatic and soil conditions vary greatly, so in general, the fixed seedling density should not b...

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Problems solved by technology

At present, the planting density of rice machine-transplanted rice fields is generally calculated based on the row and plant spacing calibrated by the rice transplanter. However, due to the difference in the soil quality and mud foot depth of the paddy field, the slip rate of the rice transplanter during transplanting is quite different, which directly affects the machine-transplanted field. The planting density, so the error between the calculated density and the field planting density of the rice transplanter is very large, and there is an urgent need for an automatic test device for the planting density of the machine-transplanted field

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