Kyushu Research Centre, Forestry and Forest Products Research Institute, Kumamoto, Japan
Forestry and Forest Products Research Institute, Tsukuba, Japan
Ogunimachi Forestry Cooperative, Oguni-Machi, Japan
Copyright © 2014 Akira Shimizu, Shigeki Yamada, Yuichiro Arita et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.
How to Cite this Article
Shimizu, A. , Yamada, S. and Arita, Y. (2014) Diameter Measurements of the Upper Parts of Trees Using an Ultra-Telephoto Digital Photography System.
Open Journal of Forestry,
4, 316-326. doi:
10.4236/ojf.2014.44038.