The invention relates to the technical field of computers, and discloses a
cultivated land resource quality grade evaluation management method and
system, and the method comprises the steps: carrying out the spectrum residual error normalization
processing of a multi-temporal
remote sensing image, generating a corrected
image sequence, effectively inhibiting the
reflectivity difference caused by the alternation of
wetting and
drying of a
water body, and achieving the evaluation of the quality grade of
cultivated land. A first boundary result and a second boundary result are respectively extracted by using depth segmentation and progressive
edge detection, the adaptability and robustness of boundary extraction are enhanced, a difference graph is further generated based on a complex
phase difference matrix, the second boundary is corrected, a coherent boundary result is obtained, the boundary
time sequence consistency is remarkably improved, and the robustness of boundary extraction is improved. And finally, the
cultivated land parcel units are constructed based on the coherent boundaries, and the
random forest model is input to complete scoring and grading, so that the stability and
traceability of the cultivated
land quality evaluation result under multiple temporal conditions are ensured, and the technical targets of stably extracting the boundaries and accurately completing grading in a dynamic change scene are achieved.