The invention belongs to the technical field of
visual processing, and particularly relates to a
time sequence NDVI
crop distribution extraction method based on a
mask auto-
encoder, which mainly comprises four steps. Firstly,
time sequence NDVI data are prepared, a multi-temporal
remote sensing image in a complete
growth cycle of target crops in a target area is obtained and processed, and the recognition precision is improved by using NDVI feature changes in the growth stage of the crops. And then performing
time sequence transformation on the ViT model, dividing
data space dimensions, completing Patch flattening and embedding, enabling the Patch to be adaptive to time sequence data, and simultaneously performing
image processing advantages. Then, model training is carried out, a
mask auto-
encoder is pre-trained in a self-supervised mode through a large amount of unlabeled data, and then supervised
fine tuning is carried out through a small amount of
labeled data; and finally,
processing new data by using the fine-tuned model, obtaining pixel-level
crop category prediction, and generating a complete distribution map. According to the method, by means of time sequence data and
model transformation,
crop types and growth stage differences are effectively distinguished, and accurate extraction is achieved.