122 CONTROL Referencias bibliográficas 1. Marshall, E.J.P. Field-scale estimates of grass weed populations in arable land, Weed Research, 28 (3), 191-198 (1988) 2. Johnson, G.A.; Mortensen, D.A.; Martin, A.R. A simulation of herbicide use based on weed spatial distribution. Weed Research, 35 (3). 1995. pp. 197-205. 3. Tian, L.; Reid, J.F.; Hummel, J.W. Development of a precision sprayer for site-specific weed management. Transaction of the American Society of Agricultural Engineers, 42, 893-900 (1999) 4. Medlin C.R.; Shaw, D.R. Economic comparison of broadcast and site-specific herbicide applications in nontransgenic and glyphosate-tolerant Glycine max. Weed Science 48 (5), 653-661 (2000) 5. Timmermann, C.; Gerhards, R.; Kühbauch, W. The economic impact of site-specific weed control. Precision Agriculture, 4 (3), 249-260 (2003) 6. Tang, L.; Tian, L.; Steward, B.L. Classification of broadleaf and grass weeds using Gabor wavelets and an Artificial Neural Network. Transactions of the ASABE, 46 (4), 1247-1254 (2003) 7. López Granados, F.; Jurado-Expósito, M.; Atenciano, S.; García-Ferrer, A.; Sánchez de la Orden, M.; García-Torres, L. Spa- tial variability of agricultural soils in southern Spain, Plant and Soil 246, 97–105, (2002) 8. López Granados, F. Discriminación de malas hierbas en cultivos de las imágenes de satélite a los vehículos aéreos no tri- pulados. Tierras de Castilla y León: Agricultura, 192, pp. 28-35 (2012). 9. Ribeiro, A.; Fernández-Quintanilla, C.; Barroso, J.; García-Alegre, M.C. Development of an image analysis system for es- timation of weed cover and weed pressure. Proceeding 5th European Conf. On Precision Agriculture (5th ECPA), 1, 169- 174 ISBN: 90-76998-69-8, (2005) 10. Pajares, G.; Tellaeche, A.; BurgosArtizzu, X.; Ribeiro, A. Design of a computer vision system for a differential spraying operation in precision agriculture through Hebbian learning. IET Computer Vision 1 (3-4), pp. 93-99, (2007) 11. Ribeiro, A.; Burgos-Artizzu, X.P.; Pajares, G.; Tellaeche, A.; Fernandez-Quintanilla, C. Procesamiento de imagen para es- timar la cantidad de malas hierbas gramíneas en cultivos de cereal de invierno. Actas del XI Congreso de la Sociedad Es- pañola de Malherbología “La malherbología en los nuevos sistemas de producción agraria” (XI SEMh), 1, 291-294; ISBN:978-84-87787-24-9, (2007) 12. Tellaeche, A.; Burgos-Artizzu, X.P.; Pajares, G.; Ribeiro, A. A vision-based method for weeds identification through the Bayesian decision theory. Pattern Recognition 41 (2), pp. 521-530, (2008) 13. Tellaeche, A.; Burgos-Artizzu, X.P.; Pajares, G.; Ribeiro, A. Fernández-Quintanilla, C. A new vision-based decision making approach for a differential spraying operation in Precision Agriculture. Computers and Electronics in Agriculture 60 (2), 144-155, (2008) 14. Burgos-Artizzu, X.P.; Ribeiro, A.; Tellaeche, A.; Pajares, G.; Fernández-Quintanilla, C. Improving weed pressure pssessment using digital images from an experience-based reasoning approach. Computers and Electronics in Agriculture 65 (2), 176- 185, (2009) 15. Pajares, G.; Guijarro, M.; Ribeiro, A. A Hopfield Neural Network for combining classifiers applied to textured images. Neural Networks 23 (1), 144–153, (2010) 16. Burgos-Artizzu, X.P.; Ribeiro, A.; Tellaeche, A.; Pajares, G.; Fernandez-Quintanilla, C. Analysis of natural images processing for the extraction of agricultural elements. Image and Vision Computing 28 (1), 138–149 (2010) 17. Burgos-Artizzu, X.P.; Ribeiro, A., Guijarro, M.; Pajares, G. Real-time image processing for crop/weed discrimination in maize fields. Computers and Electronics in Agriculture 75 (2), 337-346 (2011) 18. Guijarro, M.; Pajares, G.; Riomoros, I.; Herrera, P.J.; Burgos-Artizzu, X.P.; Ribeiro, A. Automatic segmentation of relevant textures in agricultural images. Computers and Electronics in Agriculture 75 (1), 75-83 (2011) 19. Tellaeche, A.; Burgos-Artizzu, X.P.; Pajares, G.; Ribeiro, A. A computer vision approach for weeds identification through Support Vector Machines. Applied Soft Computing 11 (1), 908-915 (2011) 20. Lee, W.S.; Slaughter, D.C.; Giles, D.K. Robotic weed control system for tomatoes. Precision Agriculture 1 (1), 95-113 (1999) 21. Meyer, G.E.; Mehta, T.; Kocher, M.F.; Mortensen, D.A.; Samal, A. Textural imaging and discriminant analysis for distin- guishing weeds for spot spraying. Transactions of the ASABE. 41 (4), 1189-1197 (1998) 22. Tian, L.; Reid, J.F.; Hummel, J.W. Development of a precision sprayer for site-specific weed management. Transactions of the American Society of Agricultural Engineers, 42, 893-900 (1999) 23. Ishak, A.J.; Hussain, A.; Mustafa, M.M. Weed image classification using Gabor wavelet and gradient field distribution. Computers and Electronics in Agriculture, 66, 53-61 (2009) 24. Hemming, J.; Rath, T. Precision agriculture: computer-vision-based weed identification under field conditions using con- trolled lighting. Journal of Agricultural Engineering Research 78 (3), 233-243 (2001) 25. Woebbecke, D.; Meyer, G.; Vonbargen, K.; Mortensen, D. Colour indices for weed identification under various soil, residue and lighting conditions. Transactions of the American Society of Agricultural Engineers, 38 (1), 271-281 (1995) 26. Burgos-Artizzu, X.P.; Ribeiro, A.; Tellaeche, A.; Pajares, G.; Fernández-Quintanilla, C. Analysis of natural images processing for the extraction of agricultural elements. Image and Vision Computing, 28, 138-149 (2010) 27. Haralick, R.M.; Sternberg, S.R.; Zhuang, X. Image analysis using mathematical morphology. IEEE Transactions on Pattern Analysis and Machine Intelligence, 9 (4), 532-550 (1987) 28. Goldberg, D.E. Genetic Algorithms in Search, Optimization and Machine Learning, Kluwer Academic Publishers, Boston, MA, (1989) 29. Hamid, M.S.; Harvey, N.R.; Marshall, S. Genetic algorithm optimization of multidimensional grayscale soft morphological filters with applications in film archive restoration. IEEE Transactions on Circuits and Systems for Video Technology, 13 (5), 406-416 (2003) 30. Harvey, N.R.; Marshall, S. The use of genetic algorithms in morphological filter design. Signal Processing: Image Com- munication, 8 (1), 55-71 (1996) 31. Rawlins, G.J.E. Foundations of Genetic Algorithms. Morgan Kaufman Publishers. (1991) tecnología