Determination of Building Model Key Points Using Multidirectional Shaded Relief Images Generated from Airborne LiDAR Data

Figure 6

Shaded relief images generated from different locations of the light source. (a) Shaded relief image with NW light source. (b) Shaded relief image with NE light source. (c) Shaded relief image with SW light source. (d) Shaded relief image with SE light source.