抄録
We propose a ground point extraction method from airborn laser scanner data by using bilateral down/top envelope filters. Our method can improve the accuracy and calculation time than a conventional method (hiraoka et al., 2014). Through experiments which is used airborn laser scanner data of area with inclination, slope, buildings, and plants, we verify the effectiveness of oure method. Finally we comment on the respects in which our method is improved and on future prospects.