An Adaptive Filter Based on Local Slope by Adjusting Elliptic Filter Kernel for ICESat-2 Photon Counting Laser Altimetric Data
Creators
- 1. College of Surveying and Geo-informatics, Tongji University, 1239 Siping Road, Shanghai 200092 (China)
Description
The Ice, Cloud and Land Elevation Satellite-2 (ICESat-2) was launched on September 15th, 2018, which continues to perform measurement tasks as the successor to ICESat. Unlike full waveform technology of ICESat, ICESat-2 employs micropulse photon counting technology, which provides higher accuracy, but produces plenty of noise. This paper proposes an adaptive filter based on local slope by adjusting elliptic filter kernel. The general approach is 1) data preprocessing, 2) Gaussian density calculation, 3) OTSU adaptive threshold calculation. This method is seen to be robust in identifying signal points from high background noise points and suitable for low density data caused by slope. Key words: photon counting / noise filtering / Gaussian density / ICESat-2
Availability note (English)
Available from https://www.epj-conferences.org/articles/epjconf/pdf/2020/13/epjconf_ilrc292020_01003.pdf; https://doaj.org/article/3950a7631d77421aa59fa1f6b6a67b92Additional details
Identifiers
Publishing Information
- Journal Title
- EPJ. Web of Conferences
- Journal Volume
- 237
- Journal Page Range
- vp.
- ISSN
- 2100-014X
Conference
- Title
- 29. International Laser Radar Conference
- Acronym
- ILRC 29
- Dates
- 24-28 Jun 2019
- Place
- Hefei, Anhui Province (China)
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 53093133
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BACKGROUND NOISE; DENSITY; FILTERS; KERNELS; LASERS; PHOTON COUNTING; REMOTE SENSING; SIGNALS; WAVE FORMS
- Descriptors DEC
- NOISE; PHYSICAL PROPERTIES