Mapping Wide Row Crops with Video Sequences Acquired from a Tractor Moving at Treatment Speed



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Sainz Costa, Nadir and Ribeiro, Angela and Burgos Artizzu, Xavier P. and Guijarro, María and Pajares Martinsanz, Gonzalo (2011) Mapping Wide Row Crops with Video Sequences Acquired from a Tractor Moving at Treatment Speed. Sensors, 11 (7). pp. 7095-7109. ISSN 1424-8220

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This paper presents a mapping method for wide row crop fields. The resulting map shows the crop rows and weeds present in the inter-row spacing. Because field videos are acquired with a camera mounted on top of an agricultural vehicle, a method for image sequence stabilization was needed and consequently designed and developed. The proposed stabilization method uses the centers of some crop rows in the image sequence as features to be tracked, which compensates for the lateral movement (sway) of the camera and leaves the pitch unchanged. A region of interest is selected using the tracked features, and an inverse perspective technique transforms the selected region into a bird’s-eye view that is centered on the image and that enables map generation. The algorithm developed has been tested on several video sequences of different fields recorded at different times and under different lighting conditions, with good initial results. Indeed, lateral displacements of up to 66% of the inter-row spacing were suppressed through the stabilization process, and crop rows in the resulting maps appear straight.

Item Type:Article
Uncontrolled Keywords:crop mapping; video stabilization; inverse perspective mapping; video processing; precision agriculture
Subjects:Sciences > Computer science > Artificial intelligence
Sciences > Computer science > Robotics
ID Code:68461
Deposited On:02 Nov 2021 12:25
Last Modified:03 Nov 2021 12:17

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