NDLI: Application of computer axial tomography (cat) to measuring crop canopy geometry. [corn and soybeans

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Application of computer axial tomography (cat) to measuring crop canopy geometry. [corn and soybeans

Content Provider	NASA Technical Reports Server (NTRS)
Author	Kilgore, R. W. Bauer, M. E.
Copyright Year	1981
Description	The feasibility of using the principles of computer axial topography (CAT) to quantify the structure of crop canopies was investigated because six variables are needed to describe the position-orientation with time of a small piece of canopy foliage. Several cross sections were cut through the foliage of healthy, green corn and soybean canopies in the dent and full pod development stages, respectively. A photograph of each cross section representing the intersection of a plane with the foliage was enlarged and the air-foliage boundaries delineated by the plane were digitized. A computer program was written and used to reconstruct the cross section of the canopy. The approach used in applying optical computer axial tomography to measuring crop canopy geometry shows promise of being able to provide needed geometric information for input data to canopy reflectance models. The difficulty of using the CAT scanner to measure large canopies of crops like corn is discussed and a solution is proposed involving the measurement of plants one at a time.
File Size	976832
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19820015724
Archival Resource Key	ark:/13960/t9f52gt48
Language	English
Publisher Date	1981-06-01
Access Restriction	Open
Subject Keyword	Earth Resources And Remote Sensing Soybeans Earth Resources Program Canopies Vegetation Corn X Ray Analysis Geometry Azimuth Agristars Project Computer Techniques Tomography Foliage Height Crop Vigor Reflectance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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