Use of a Non-Metric Digital Camera for Tree Stem Evaluation

  • Authors: Clark, Neil; Wynne, Randolph H.; Schmoldt, Daniel L.; Araman, Philip A.; Winn, Matthew F.
  • Publication Year: 1998
  • Publication Series: Miscellaneous Publication
  • Source: Proceedings, 1998 ASPRS/RT Annual Convention. (pre-published version)

Abstract

We are investigating the use of a commercially-available solid-state matrix camera as a dendrometer for tree stem measurements. Thirty-two images of four hardwood stems were used to measure 54 diameters at various heights on the stems ranging from 1.4 m to 21 m. These measurements were compared to caliper measurements taken at the same heights. The percent inaccuracy between diameters derived using the camera and caliper measurements was 6.9 percent, which falls within the range of other dendrometers commonly used. The advantage of this system is the additional stem form, defect, and vigor information that can be instantaneously captured. We found that this method is accurate and efficient for collecting a large amount of data for a single stem.

  • Citation: Clark, Neil; Wynne, Randolph H.; Schmoldt, Daniel L.; Araman, Philip A.; Winn, Matthew F. 1998. Use of a Non-Metric Digital Camera for Tree Stem Evaluation. Proceedings, 1998 ASPRS/RT Annual Convention. (pre-published version)
  • Posted Date: April 1, 1980
  • Modified Date: August 22, 2006
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.