Remote sensing building sample rapid acquisition method based on self-closing orthogonal polygon

The invention discloses a remote sensing building sample rapid acquisition method based on a self-closing orthogonal polygon. The method comprises the following steps: 1, loading a high-resolution remote sensing image on line; 2, exciting an orthogonal polygon drawing component; 3, calculating an orthogonal auxiliary line in real time; 4, building inflection point orthogonal correction is achieved; 5, automatic closing is achieved at the end; and 6, submitting and storing the coordinate string. The method can be applied to building collection of various resolutions, rapid collection is provided for building large-scale remote sensing building labeling samples, the comprehensive efficiency is improved by 14%, the orthogonal regularization quality of the collected building samples is greatly improved, the generalization and accuracy of remote sensing building semantic recognition are improved, and the method is suitable for popularization and application. And the bottleneck problem of semantic recognition cause