Engineering Commons^™

Development Of A Versatile Wide-Angle Lens Characterization Strategy For Use In The Omnister Stereo Vision System, Keith B. Johnson

Masters Theses

This thesis details the development of an accurate and efficient wide-angle stereo vision system. Wide-angle or fisheye stereo is desired because it provides the capa­bility to recover depth information for a large scene from a single stereo image pair. However, nonlinear image distortions caused by the camera optics complicate the necessary stereo processes of camera modeling and disparity analysis . The charac­terization and removal of these lens distortions therefore is considered vital to stereo evaluation of fisheye images. Existing wide-angle stereo systems have maintained the use of pinhole projections to model the respective camera systems . This ideal projection model …

The Design And Implementation Of A Field-Scale Monitoring System To Evaluate Spatial Variability Within Production Cotton Fields, Michael Spencer Palmer

Masters Theses

Much interest has been focused on site-specific crop production since the introduction of grain yield monitoring systems. Considerable research has been conducted in the area of site-specific grain production. Lack of a cotton yield monitor has slowed implementation of site-specific practices in cotton production. However, due to the intense level of management corrunonly associated with in cotton production. it may prove to be an ideal crop for site-specific practices.

Preliminary testing was conducted in the fall of 1995 to verify that a batch weighing system used in conjunction with Global Positioning System (GPS) equipment was a satisfactory method of monitoring …