There are four mistakes at the table derived from the (c) surface slope of Figure 4 in [1]. The direction numbers are derived according to (a) slope directions. The overall direction number should be changed from 6 to 4. The distinct direction number between the 1st and 2nd subcells should be changed from 0 to 8. The distinct direction number between the 2nd and 3rd subcells should be changed from 8 to 4. The distinct direction number between the 3rd and 4th subcells should be changed from 4 to 6. The authors would like to apologize for any inconvenience this may have caused to the readers of this journal.
Figure 4.
The layered slopes for data abstraction in a cell.
The new figure is provided below:
Reference
- Lee, Y.; Jung, Y.J.; Nam, K.W.; Nittel, S.; Beard, K.; Ryu, K.H. Geosensor Data Representation Using Layered Slope Grids. Sensors 2012, 12, 17074–17093. [Google Scholar]
© 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license ( http://creativecommons.org/licenses/by/3.0/).