Method for estimating cotton yield by acquiring cotton boll index through remote sensing image of unmanned aerial vehicle

The invention relates to the technical field of telemetering, in particular to a method for acquiring a cotton boll index and estimating the cotton yield by using an unmanned aerial vehicle remote sensing image. The invention provides a more reasonable method for realizing clear yield estimation. The method comprises the following three parts of contents: 1, developing indexes capable of intuitively reflecting cotton boll characteristics; 2, extracting cotton boll information by referring to ground survey data and using a threshold segmentation method; and 3, cotton yield estimation test considering cotton boll information. The invention aims to develop a new spectral index, emphasizes the spectral characteristics of the cotton bolls so as to improve the accuracy of yield modeling, and the index deeply considers the spectral difference between the cotton bolls and other field targets, and can support the implementation of per unit yield estimation by using a simple model or be used as an input layer to partic