Investigation of laser and ultrasonic ranging sensors for measurements of citrus canopy volume

Tumbo, S. D.; Salyani, M.; Whitney, J. D.; Wheaton, T. A.; Miller, W. M.

dc.creator	Tumbo, S. D.
dc.creator	Salyani, M.
dc.creator	Whitney, J. D.
dc.creator	Wheaton, T. A.
dc.creator	Miller, W. M.
dc.date	2017-06-14T14:22:58Z
dc.date	2017-06-14T14:22:58Z
dc.date	2002
dc.date.accessioned	2022-10-25T08:51:34Z
dc.date.available	2022-10-25T08:51:34Z
dc.identifier	0883–8542
dc.identifier	https://www.suaire.sua.ac.tz/handle/123456789/1595
dc.identifier.uri	http://hdl.handle.net/123456789/91533
dc.description	Applied Engineering in Agriculture 2002, Vol. 18(3): 367–372
dc.description	This study compared ultrasonic and laser measurements of citrus canopy volume with manual measurement methods. Fifteen trees with different canopy heights and volumes were used. Manual and ultrasonic measurements provided dimensions for computing the canopy volume whereas laser measurements gave information that could be used to compute a ‘laser canopy volume index.’ Ultrasonic and laser methods agreed with manual methods (R2 > 0.85, RMSE < 2.15 m3). Laser showed better prediction of canopy volume than the ultrasonic system because of the higher resolution. Ultrasonic or laser sensors can be used for automatic mapping and quantification of the canopy volumes of citrus trees.
dc.format	application/pdf
dc.language	en
dc.publisher	American Society of Agricultural Engineers
dc.subject	Precision agriculture
dc.subject	Ultrasonic
dc.subject	Canopy volume
dc.subject	Citrus
dc.subject	Laser
dc.title	Investigation of laser and ultrasonic ranging sensors for measurements of citrus canopy volume
dc.type	Article