I am interested in image analysis to estimate trees' volume/biomass. The estimation should be based on ground images of single trees, not aerial image.
Do you talk about thee GitHub project AMAPmod - language for plant architecture analysis? Or there is a similar project from INRA?
GlobalAllomeTree (http://www.globallometree.org/) is also a good initiative, but it doesn't include yet a tool for assessing volume/biomass based on an image.