Publication
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2020
2019
2018
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2016
2015
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Pourreza, Alireza, Lee, Won Suk, Reza Ehsani, Schueller, John K, and Raveh, Eran. An Optimum Method for Real-Time In-Field Detection of Huanglongbing Disease Using a Vision Sensor. (2015). Computers and Electronics in Agriculture, Elsevier, Vol. 110, 221–232. (doi: 10.1016/j.compag.2014.11.021)
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Pourreza, Alireza, Lee, Won Suk, Etxeberria, Edgardo, and Banerjee, Arunava. An evaluation of a vision based sensor performance in Huanglongbing disease identification. (2015). Biosystems Engineering, Elsevier, Vol. 130, 13-22. (doi:10.1016/j.biosystemseng.2014.11.013)
2014
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Pourreza, A., Lee W.S., Etxeberria E. (2014). “Rapid in-field diagnosis of Huanglongbing disease using computer vision,” In Proceeding of the 127th Florida State Horticultural Society Annual Meeting, Clearwater, Florida, USA.
2013
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Yang, C. and W. S. Lee. 2013. Precision agricultural systems. In Agricultural automation: fundamentals and practices. Eds. Q. Zhang and F. J. Pierce. CRC Press.
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Katti, A. R., W. S. Lee, and C. Yang. 2013. Laser weeding system for elimination of in-row weeds. In Proceedings of the 5th Asian Conference on Precision Agriculture (ACPA), June 25-28, 2013, Jeju, Korea.
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Li, H., W. S. Lee, and K. Wang. 2013. Spectral mixture analysis based citrus greening disease detection using satellite image of Florida. In Proceedings of the 5th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). 25-28 June 2013, Gainesville, Florida, USA.
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Saber, M., W. S. Lee, T. F. Burks, G. E. MacDonald, and G. Salvador. 2013.An automated mechanical weed control system for organic row crop production. ASABE Paper No. 131593595. St. Joseph, Mich.: ASABE.
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Yang, C., W. S. Lee, P. Gader, and H. Li. 2013. Hyperspectral band selection using Kullback-Leibler divergence for blueberry fruit detection. In Proceedings of the 5th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). 25-28 June 2013, Gainesville, Florida, USA.
2012
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Shin, J., W. S. Lee, and R. Ehsani. 2012. Postharvest citrus mass and size estimation using logistic classification model and watershed algorithm. Biosystems Engineering 113(1): 42-53.
- Ruslan, R., R. Ehsani, and W. S. Lee. 2012. Quantification of total soluble solids and titratable acidity for citrus maturity using VIS-NIR spectroradiometer. Applied Engineering in Agriculture 28(5): 735-743.
- Kumar, A., W. S. Lee, R. Ehsani, L. G. Albrigo, C. Yang, and R. L. Mangan. 2012. Citrus greening disease detection using aerial hyperspectral and multispectral imaging techniques. Journal of Applied Remote Sensing 6, 063542, http://link.aip.org/link/doi/10.1117/1.JRS.6.063542.
- Mishra, A. R., D. Karimi, R. Ehsani and W. S. Lee. 2012. Identification of citrus greening (HLB) using a VIS-NIR spectroscopy technique. Trans. ASABE 55(2): 711-720.
- Li, X., W. S. Lee, M. Li, R. Ehsani, A. Mishra, C. Yang, and R. L. Mangan. 2012. Spectral difference analysis and airborne imaging classification for citrus greening infected trees. Computers and Electronics in Agriculture 83: 32-46.
- Sengupta, S., and W. S. Lee. 2012. Identification and determination of the number of green citrus fruit under different ambient light conditions. International Conference of Agricultural Engineering CIGR-AgEng2012, July 8-12, 2012, Valencia, Spain.
- Li, H., W. S. Lee, K. Wang, R. Ehsani, and C. Yang. 2012. Spectral angle mapper (SAM) based citrus greening disease detection using airborne hyperspectral imaging. 11th International Conference on Precision Agriculture, Indianapolis, Indiana.
- Lee, W. S. 2012. Sensing technologies for precision agriculture: current status and future needs. Proceedings of the 6th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB), June 18-20, 2012, Jeonju, Korea.
- Yang, C. and W. S. Lee. 2012. Blueberry fruit detection by Bayesian classifier and support vector machine based on visible to near-infrared multispectral imaging. ASABE Paper No. 12-1338433. St. Joseph, Mich.: ASABE.
- Zheng, L., W. S. Lee, M. Li, A. Katti, C. Yang, and H. Li. 2012. Analysis of soil phosphorus concentration based on Raman spectroscopy. SPIE Asia-Pacific Remote Sensing 2012, Kyoto, Japan, 29 Oct. – 1 Nov., 2012.
- Mason, A. D., R. Schnell, J. Ferrell, J. Sartain, and W. S. Lee. 2012. Comparing grid and directed zone soil sampling schemes for peanut production. ASA, CSSA, and SSSA International Annual Meetings, Oct. 21-24, 2012, Cincinnati, Ohio.
- Khosro, F. A., J. M. Maja, R. Ehsani, and W. S. Lee. 2012. An automated tine control for tractor drawn citrus canopy shakers. ASABE 2012 Annual Meeting, July 29-Aug. 1, 2012, Dallas, Texas.
- Li, H., W. S. Lee, K. Wang, R. Ehsani, and C. Yang. 2012. Spectral angle mapper (SAM) based citrus greening disease detection using airborne hyperspectral imaging. 11th International Conference on Precision Agriculture, Indianapolis, Indiana.
2011
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Kurtulmus, F., W. S. Lee, and A. Vardar. 2011. Green citrus detection using eigenfruit, color and circular Gabor texture features under natural outdoor conditions. Computers and Electronics in Agriculture 78(2): 140-149.
- Bansal, R., W. S. Lee, R. Shankar, and R. Ehsani. 2011. Automated debris mass estimation for citrus mechanical harvesting systems using machine vision. Applied Engineering in Agriculture 27(5): 673-685.
- Han, Y., W. S. Lee, C. Lee, S. Park, K. Kim, and S. Kim. 2011. Entrapment of Mg-Al layered double hydroxide in calcium alginate beads for phosphate removal from aqueous solution. Desalination and Water Treatment. 36: 178-186.
- Kurtulmus, F., W. S. Lee, and A. Vardar. 2011. An advanced green citrus detection algorithm using color images and neural networks. 11th International Congress on Mechanization and Energy in Agriculture, Sep. 21-23, 2011, Istanbul, Turkey. Journal of Agricultural Machinery Science, 7(2): 145-151.
- Bansal, R., W. S. Lee and S. Satish. 2011. Green citrus detection using Fast Fourier Transform (FFT) leakage. 8th European Conference on Precision Agriculture, July 11-14, 2011, Prague, Czech Republic.
- Kurtulmus, F., W. S. Lee, and A. Vardar. 2011. An advanced green citrus detection algorithm using color images and neural networks. 11th International Congress on Mechanization and Energy in Agriculture. Sep. 21-23, 2011, Istanbul, Turkey.
- Yang, C. and W. S. Lee. 2011. Spectral signatures of blueberry fruits and leaves. ASABE Paper No. 1110582. St. Joseph, Mich.: ASABE.
- Li, X., W. S. Lee, M. Li, R. Ehsani, A. Mishra, C. Yang, and R. Mangan. 2011. Comparison of different detection methods for citrus greening disease based on airborne multispectral and hyperspectral imagery. ASABE Paper No. 1110570. St. Joseph, Mich.: ASABE.
2010
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Lee, W. S., V. Alchanatis, C. Yang, M. Hirafuji, D. Moshou, and C. Li. 2010. Sensing technologies for precision specialty crop production.Computers and Electronics in Agriculture 74(1): 2-33.
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Jones, C. D., J. B. Jones, and W. S. Lee. 2010. Diagnosis of bacterial spot of tomato using spectral signatures.Computers and Electronics in Agriculture74(2):329-335.
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Kumar, A., W. S. Lee, R. Ehsani, L. G. Albrigo, C. Yang, and R. L. Mangan. 2010. Citrus greening disease detection using airborne multispectral and hyperspectral imaging. 10th International Conference on Precision Agriculture. July 18-21, 2010, Hyatt Regency Tech Center, Denver, Colorado.
2009
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Okamoto, H., and W. S. Lee. 2009. Green citrus detection using hyperspectral imaging. Computers and Electronics in Agriculture 66(2): 201-208.
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Kumar, A., W. S. Lee, R. Ehsani, and L. G. Albrigo. 2009. Airborne hyperspectral imaging for citrus greening disease detection. In the Proceedings of the 3rd Asian Conference on Precision Agriculture, Beijing , China .
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Okamoto, H., and W. S. Lee. 2009. Computer vision technique for green citrus recognition in tree image. In the Proceedings of the 4th IFAC International Workshop on Bio-Robotics, Information Technology, and Intelligent Control for Bioproduction Systems, September 10–11, 2009, I Hotel and Conference Center, Champaign, Illinois.
2008
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Lehtola, C. J. and W. S. Lee. 2008. U. S. agricultural safety issues and trends. 3rd Korea-Japan Joint Seminar on “Safety for agricultural machinery”. September, 23, 2008. National Institute of Agricultural Engineering, Rural Development Administration, Suwon, Korea.
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Lee, W. S., R. Ehsani, and L. G. Albrigo. 2008. Citrus greening (Huanglongbing) detection using aerial hyperspectral imaging. 9th International Conference on Precision Agriculture. July 20-23, 2008, Hyatt Regency Tech Center, Denver, Colorado.
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Lee, W. S., L. Estrada, and R. Espinel. 2008. Precision agriculture in Ecuador. 2008 Florida Section ASABE Annual Conference and Tradeshow. June 12-13, 2008 – Duck Key, Florida.
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Lee, W. S. 2008. Precision agriculture: methods and possibilities. Invited presentation at Escuela Superior Politécnica del Litoral (ESPOL), March 9-15, Guayaquil, Ecuador.
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Lee, W. S., R. Chinchuluun, and R. Ehsani. 2008. Citrus fruit identification using machine vision for a canopy shake and catch harvester. International Symposium: “Application of precision agriculture for fruits and vegetables”. January 6-9, 2008. Grosvenor Resort, Orlando, Florida.
2007
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Okamoto, H., W. S. Lee, and K. E. Kane. 2007. Hyperspectral imaging for green citrus fruit detection. 6th European Conference in Precision Agriculture and 2nd European Conference on Precision Livestock Farming, June 3-6, 2007, Skiathos , Greece .
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Cohen, M. J., R. Mylavarapu, I. Bogrekci, W. S. Lee, and M. W. Clark. 2007. Reflectance Spectroscopy for Routine Agronomic Soil Analyses. Soil Science 172(6): 469-485.
2006
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Min, M., W. S. Lee, Y. H. Kim, and R. A. Bucklin. 2006. Nondestructive detection of nitrogen in Chinese cabbage leaves using VIS- NIR spectroscopy. HortScience 41(1): 162-166.
2005
2004
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Sevier, B. J., and W. S. Lee. 2004. Precision agriculture in citrus: a Probit model analysis for technology adoption. ASAE Paper No. 041092. St. Joseph, Mich.: ASAE.
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Shoup, W. D., W. S. Lee, and T. Harrison. 2004. Precision technologies for precision management. In Agricultural Systems Management: Optimizing Efficiency and Performance, 245-276. R. M. Peart and W. D. Shoup, eds. New York, N.Y.: Marcel Dekker.
2003
2002
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"Temporal Variation of Soil Ca, Mg, and K using Precision Agriculture in Florida ", ASAE Paper No. FL 2002-19.
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"Comparing interpolation methods for mapping soil properties: Ca, Mg, and K", ASAE Paper No. FL 2002-20.