Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern
Help
 

GeoTreesearch


Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

(131 KB bytes)

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

Author: Clark, Neil; Wynne, Randolph H.; Schmoldt, Daniel L.; Araman, Philip A.; Winn, Matthew F.

Date: 1998

Source: Proceedings, 1998 ASPRS/RT Annual Convention. (pre-published version)

Publication Series: Not categorized

Description: 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.

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

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)

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.