Crop identification method and system based on binary coding

The invention provides a crop identification method and system based on binary coding. The method includes the steps: acquiring NDVI (normalized difference vegetation index) images of a target area ata plurality of preset time phases; dividing the space of the target area by an image segmentation algorithm and taking the NDVI statistical average value of each segmentation unit at each preset timephase as an NDVI value of each pixel in each segmentation unit at each preset time phase; comparing the NDVI value of each pixel at each preset time phase with a preset NDVI threshold value, settinga corresponding binary coding value to be 1 when the NDVI value of each pixel at each preset time phase is larger than the NDVI threshold value, otherwise, setting the corresponding binary coding value to be 0 to obtain a binary coding sequence corresponding to each pixel; matching the binary coding sequence corresponding to each pixel with a standard binary coding sequence, and determining that the type of a crop planted a