Airborne dual-wavelength LiDAR data for classifying land cover

Cheng Kai Wang, Yi Hsing Tseng, Hone Jay Chu

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)


This study demonstrated the potential of using dual-wavelength airborne light detection and ranging (LiDAR) data to classify land cover. Dual-wavelength LiDAR data were acquired from two airborne LiDAR systems that emitted pulses of light in near-infrared (NIR) and middle-infrared (MIR) lasers. The major features of the LiDAR data, such as surface height, echo width, and dual-wavelength amplitude, were used to represent the characteristics of land cover. Based on the major features of land cover, a support vector machine was used to classify six types of suburban land cover: road and gravel, bare soil, low vegetation, high vegetation, roofs, and water bodies. Results show that using dual-wavelength LiDAR-derived information (e.g., amplitudes at NIR and MIR wavelengths) could compensate for the limitations of using single-wavelength LiDAR information (i.e., poor discrimination of low vegetation) when classifying land cover.

Original languageEnglish
Pages (from-to)700-715
Number of pages16
JournalRemote Sensing
Issue number1
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)


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