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Camera Sensor Arrangement for Crop/Weed Detection Accuracy in Agronomic Images

Authors
Journal
Sensors
1424-8220
Publisher
MDPI AG
Publication Date
Volume
13
Issue
4
Identifiers
DOI: 10.3390/s130404348
Keywords
  • Article
Disciplines
  • Agricultural Science
  • Design

Abstract

In Precision Agriculture, images coming from camera-based sensors are commonly used for weed identification and crop line detection, either to apply specific treatments or for vehicle guidance purposes. Accuracy of identification and detection is an important issue to be addressed in image processing. There are two main types of parameters affecting the accuracy of the images, namely: (a) extrinsic, related to the sensor's positioning in the tractor; (b) intrinsic, related to the sensor specifications, such as CCD resolution, focal length or iris aperture, among others. Moreover, in agricultural applications, the uncontrolled illumination, existing in outdoor environments, is also an important factor affecting the image accuracy. This paper is exclusively focused on two main issues, always with the goal to achieve the highest image accuracy in Precision Agriculture applications, making the following two main contributions: (a) camera sensor arrangement, to adjust extrinsic parameters and (b) design of strategies for controlling the adverse illumination effects.

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