Research on Erosion Ditch Extraction Based on Gram-Schmidt Spectral Sharpening Method
This paper compares multiple extraction methods in the research process of erosion ditch extraction,constructs fusion data,and obtains a fusion algorithm suitable for extracting erosion ditch parameters. With the focus on the Gram-Schmidt spectral sharpe-ning method,it discusses a comprehensive algorithm method based on fusion images,ditch bottom line,ditch bottom line slope value,and visual interpretation for extracting erosion ditches in the experimental area,achieving an increase in image information content. The goal is to enhance the accuracy of erosion ditch interpretation. This paper has certain reference value for automatic extraction of e-rosion ditch images in areas with concentrated erosion ditches,such as the hinterland of the Northeast Plain and the Loess Plateau.
Gram-Schmidt methodspectral sharpeningerosion ditch extractionimage information content