Method and device for monitoring crop harvesting progress

Abstract

The invention discloses a method and a device for monitoring crop harvesting progress. The method includes acquiring complete polarimetric synthetic aperture radar (SAR) remote-sensing images in a monitoring area in the harvest season of crops, decomposing the remote-sensing images by polarization to obtain polarization parameters of each pixel; extracting the boundary of each plot in the remote-sensing images, and acquiring the average polarization parameter of all pixels in each plot according to the polarization parameter of each pixel; judging whether the crops on each plot are harvested or not according to the average polarization parameters. The method solves the problem that the acquired harvesting progress of the optical remote-sensing monitoring has an effect on the monitoring accuracy of the harvesting progress of the crops since the harvester crops are aired on the spots. The harvesting progress of the crops can be quickly and accurately monitored in large area, high-efficient harvesting is guaranteed to the greatest extent, risk in harvesting output due to weather and the like is reduced, and the method has great significance in realizing high yield, high quality and high efficiency of the crop harvesting.

Description

technical field [0001] The invention relates to the technical field of radar remote sensing applications, in particular to a method and device for monitoring crop harvesting progress. Background technique [0002] Crop harvesting is an important activity that directly determines the final effective food yield. Harvesting too early reduces food yields, and harvesting too late increases the risk of adverse weather effects. However, the duration of the harvest period is very short. Considering factors such as weather, mechanical manpower, and sowing of subsequent crops, it is often necessary to "rush to harvest", so the timeliness of monitoring information is very high. Therefore, timely monitoring of the harvesting progress of crops during the harvest period on a large scale will help to optimize harvesting strategies, make more reasonable and effective allocation of resources such as machinery, manpower, transportation, and subsequent processing, and ensure efficient harvest...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention provides a method and device for monitoring the harvesting progress of crops, which solves the problem that the acquisition of optical remote sensing monitoring harvesting progress data will affect the accuracy of monitoring the harvesting progress of crops due to remaining in place to dry after harvesting. The problem

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