Identifying sunlit leaves using Convolutional Neural Networks: An expert system for measuring the crop water stress index of pistachio trees

Minas Pantelidakis, Athanasios Aris Panagopoulos, Konstantinos Mykoniatis, Shawn Ashkan, Rajeswari Cherupulli Eravi, Vishnu Pamula, Enrique Cruz Verduzco III, Oleksandr Babich, Orestis P. Panagopoulos, Georgios Chalkiadakis

Abstract: Highlights•The sunlit-leaf segmentation state of the art has poor precision.•Convolutional neural networks beat the sunlit-leaf segmentation state of the art.•Full-resolution residual networks can support precise sunlit-leaf segmentation.•Releasing the first sunlit-leaf segmentation dataset for pistachio trees.•Releasing an online tool for measuring pistachio-tree crop water stress index.