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Camera sensor arrangement for crop/weed detection accuracy in agronomic images

AuthorsRomeo, Juan; Guerrero Montávez, Juan Miguel ; Montalvo, Martín; Emmi, Luis Alfredo ; Guijarro, María; González-de-Santos, Pablo ; Pajares, Gonzalo
KeywordsCamera-based sensor
Extrinsic and intrinsic parameters
Uncontrolled illumination
Lens vignetting correction
Crop lines detection accuracy
Weeds detection accuracy
Issue Date2-Apr-2013
PublisherMultidisciplinary Digital Publishing Institute
CitationSensors 13(4): 4348-4366 (2013)
AbstractIn 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. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
Publisher version (URL)http://doi.org/10.3390/s130404348
Identifiersissn: 1424-8220
Appears in Collections:(CAR) Artículos
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