Signal Photon Extraction Method for ICESat-2 Data Using Slope and Elevation Information Provided by Stereo Images.

ABSTRACT: Laser altimetry data from the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) contain a lot of noise, which necessitates the requirement for a signal photon extraction method. In this study, we propose a density clustering method, which combines slope and elevation information from optical stereo images and adaptively adjusts the neighborhood search direction in the along-track direction. The local classification density threshold was calculated adaptively according to the uneven spatial distribution of noise and signal density, and reliable surface signal points were extracted. The performance of the algorithm was validated for strong and weak beam laser altimetry data using optical stereo images with different resolutions and positioning accuracies. The results were compared qualit

SUBMITTER: Gu L 

PROVIDER: S-EPMC10649317 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature