Active Optical Sensors for Tree Stem Detection and Classification in Nurseries. - Miguel Garrido; Manuel Pérez-Ruiz; Constantino Valero; Chris Gliever; Bradley D. Hanson; David C. Slaughter (Sensors, 2014)

Automated Mobile System for Accurate Outdoor Tree Crop Enumeration Using an Uncalibrated Camera. - Thuy Tuong Nguyen; David C. Slaughter; Bradley D. Hanson; Andrew Barber; Amy Freitas; Daniel Robles; Erin Whelan (Sensors, 2015)