Natural resource image analysis method and system based on visual saliency

The invention provides a natural resource image analysis method and system based on visual saliency. The method comprises the following steps: firstly, acquiring massive land utilization real-scene images; then processing the massive land utilization real scene images to obtain a main scene area and a semantic analysis graph, and further obtaining a facade significance semantic segmentation graph; analyzing the facade significance semantic segmentation map to obtain an open scene, and performing projection conversion on the open scene to obtain a planar main scene semantic segmentation map; and finally, performing principal component statistics on the planar main scene semantic segmentation map to obtain a land utilization semantic content packet in the main scene range of the corresponding land utilization live-action picture. The method has the beneficial effects that a large piece of noise and uninterested land types in the picture can be effectively eliminated, so that the finally obtained land utilizatio