Efficient Noise Reduction of Laser Scanning Data for Archaeological Survey

Recently, a ground based laser scanning sensor is receiving more attention as an useful tool for real-time acquisition of 3D data, and its applications are proposed in various fields. For example, a topographic survey for archaeological sites is performed efficiently using a laser scanning sensor. A traverse survey is one of the typical methods for topographic map in archaeological sites. Usually, a traverse survey is performed using a total station, and only 2D planimetric map is obtained by traverse surveys. Therefore, 3D survey system is expected to generate DEM using ground based laser scanning sensor, and efficient visualization of topographic data. In this paper, the authors investigate efficient noise reduction method, and an efficient DEM generation for archaeological sites using a ground based laser scanning sensor.