Posters's compilation of the 4th International Plant Phenotyping Symposium, on December 14, 2016. Phenotyping is key to understanding the physiological and genetic bases of plant growth and adaptation and their application for crop improvement. A revolution in phenomics is taking place, using non-invasive technologies based on spectral reflectance from plant tissue. Automated proximal sensing in controlled environments has sufficient resolution for detailed genetic and physiological dissection in model plant species. Aerial imaging using manned or unmanned low-flying vehicles or even satellites is transforming field phenotyping, at scales ranging from individual plots for breeding to entire fields to characterize agro-ecosystems.