Full TGIF Record # 112681
Item 1 of 1
Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/00103629809370009
    Last checked: 10/15/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Report
Author(s):Beverly, Reuben B.; van Iersel, Marc W.
Author Affiliation:Department of Horticulture, Georgia Station, University of Georgia, Griffin, Georgia
Title:Calibration of a video image analysis system for measuremnet of stem length, leaf area, and percent ground coverage
Source:Communications in Soil Science and Plant Analysis. Vol. 29, No. 9/10, May 1998, p. 1071-1081.
# of Pages:11
Publishing Information:New York, NY: Marcel Dekker
Keywords:TIC Keywords: Image analysis; Stem length; Leaf area; Percent living ground cover; Evaluative methods; Calibrations
Abstract/Contents:"A relatively low-cost digital measurement system configured with off-the shelf components (a standard consumer High 8-mm camcorder, video cassette recorder, video monitor, desktop computer with image capture board, and image analysis software) has been used in applications from benchtop stem length and leaf area measurements to aerial imaging for precision agriculture applications. However, preliminary research identified a systematic error in estimating leaf area using this system, which further investigation revealed to be caused by the internal calibration method used. Further research was needed to determine appropriate calibration methods for length and area measurements using this system. Length measurements were very accurate and repeatable using a vertical (i.e., parallel to the axis of the objects) two-point calibration. Two-point (vertical, horizontal or diagonal) calibration led to over- or under-estimation of area, but three-point calibration yielded very accurate measurements of area and percent coverage. This system proved to be a versatile and useful method of measuring many plant size parameters."
Language:English
References:5
Note:Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Beverly, R. B., and M. W. van Iersel. 1998. Calibration of a video image analysis system for measuremnet of stem length, leaf area, and percent ground coverage. Commun. Soil. Sci. Plant Anal. 29(9/10):p. 1071-1081.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=112681
If there are problems with this record, send us feedback about record 112681.
Choices for finding the above item:
Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1080/00103629809370009
    Last checked: 10/15/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Find Item @ MSU
MSU catalog number: S 590 .C54
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)