3D characterization of flat surfaces with your cell phone.
Ahmes app for Android cited by Escribano-Rocafort et al. (2014). A free tool for scientific and educational purposes.
Escribano‐Rocafort, A. G., Ventre‐Lespiaucq, A. B., Granado‐Yela, C., López‐Pintor, A., Delgado, J. A., Muñoz, V., ... & Balaguer, L. (2014). Simplifying data acquisition in plant canopies‐Measurements of leaf angles with a cell phone. Methods in Ecology and Evolution, 5(2), 132-140.