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LiDAR-based forest visualization.

Fujisaki, Ikuko.

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LiDAR-based forest visualization.

Record Type:	Electronic resources : Monograph/item
Title/Author:	LiDAR-based forest visualization./
Author:	Fujisaki, Ikuko.
Description:	144 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 1806.
Contained By:	Dissertation Abstracts International66-04B.
Subject:	Agriculture, Forestry and Wildlife. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3171404
ISBN:	054208094X

LiDAR-based forest visualization.
Fujisaki, Ikuko.

LiDAR-based forest visualization. - 144 p.

Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 1806.

Thesis (Ph.D.)--Mississippi State University, 2005.

Viewer estimations of stand characteristics from computer-visualized stands were examined through two experiments to study utility of forest visualization to portray stand properties. In the first experiment, the viewers examined field videos or computer-visualized stand simulations based on a high-level-of-detail graphic tree model with a two dimensional screen. In the second experiment, the viewers examined computer-visualized stands based on LIDAR measured data depicted with low-, medium-, and high-level-of-detail tree models in the Cave Automatic Virtual Environment, a room-size stereoscopic display. Results indicated that accurate levels of representation of computer visualized outcomes depended on assessed properties and stand type. LIDAR-based virtual forests characterized relatively well tree spacing, stem density, live crown ratio, relative stocking, structure, and hardwood competition, but differences in viewer's interpretation in diameter at breast height, crown dimension, and stage in rotation were found in at least one examined stand. The results also indicated that level of model did not affect either the viewer's stand descriptions for most of the characteristics or navigational efficiency as measured by number of rendered trees during interactive navigation process and interaction time. However, a simplified model may not represent stand structure sufficiently. Studies of benefit/cost and interface, such as development of devices that are imposed on the user when interacting with a virtual environment, are necessary to transfer this technology to practical use.

ISBN: 054208094XSubjects--Topical Terms:

783690
Agriculture, Forestry and Wildlife.

LiDAR-based forest visualization.
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020 $a 054208094X
035 $a (UnM)AAI3171404
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040 $a UnM $c UnM
100 1 $a Fujisaki, Ikuko. $3 1908487
245 1 0 $a LiDAR-based forest visualization.
300 $a 144 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 1806.
500 $a Major Professor: David L. Evans.
502 $a Thesis (Ph.D.)--Mississippi State University, 2005.
520 $a Viewer estimations of stand characteristics from computer-visualized stands were examined through two experiments to study utility of forest visualization to portray stand properties. In the first experiment, the viewers examined field videos or computer-visualized stand simulations based on a high-level-of-detail graphic tree model with a two dimensional screen. In the second experiment, the viewers examined computer-visualized stands based on LIDAR measured data depicted with low-, medium-, and high-level-of-detail tree models in the Cave Automatic Virtual Environment, a room-size stereoscopic display. Results indicated that accurate levels of representation of computer visualized outcomes depended on assessed properties and stand type. LIDAR-based virtual forests characterized relatively well tree spacing, stem density, live crown ratio, relative stocking, structure, and hardwood competition, but differences in viewer's interpretation in diameter at breast height, crown dimension, and stage in rotation were found in at least one examined stand. The results also indicated that level of model did not affect either the viewer's stand descriptions for most of the characteristics or navigational efficiency as measured by number of rendered trees during interactive navigation process and interaction time. However, a simplified model may not represent stand structure sufficiently. Studies of benefit/cost and interface, such as development of devices that are imposed on the user when interacting with a virtual environment, are necessary to transfer this technology to practical use.
590 $a School code: 0132.
650 4 $a Agriculture, Forestry and Wildlife. $3 783690
650 4 $a Remote Sensing. $3 1018559
690 $a 0478
690 $a 0799
710 2 0 $a Mississippi State University. $3 1017550
773 0 $t Dissertation Abstracts International $g 66-04B.
790 1 0 $a Evans, David L., $e advisor
790 $a 0132
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3171404