RT Journal Article T1 Definition and Application of a Computational Parameter for the Quantitative Production of Hydroponic Tomatoes Based on Artificial Neural Networks and Digital Image Processing. A1 Palacios, Diego Fermín A1 Arzamendia López, Mario Eduardo A1 Gregor Recalde, Derlis Orlando A1 Cikel, Kevin A1 León Ovelar, Laura Regina A1 Villagra, Marcos AB This work presents an alternative method, referred to as Productivity Index or PI, to quan tify the production of hydroponic tomatoes using computer vision and neural networks, in contrast to other well-known metrics, such as weight and count. This new method also allows the automation of processes, such as tracking of tomato growth and quality control. To compute the PI, a series of computational processes are conducted to calculate the total pixel area of the displayed tomatoes and obtain a quantitative indicator of hydroponic crop production. Using the PI, it was possible to identify objects belonging to hydroponic tomatoes with an error rate of 1.07%. After the neural networks were trained, the PI was applied to a full crop season of hydroponic tomatoes to show the potential of the PI to monitor the growth and maturation of tomatoes using different dosages of nutrients. With the help of the PI, it was observed that a nutrient dosage diluted with 50% water shows no difference in yield when compared with the use of the same nutrient with no dilution. YR 2021 FD 2021 LK http://hdl.handle.net/20.500.14066/3590 UL http://hdl.handle.net/20.500.14066/3590 LA eng NO CONACYT - Consejo Nacional de Ciencia y Tecnología DS MINDS@UW RD 03-nov-2024