1. A method for characterizing membranes at vitreoretinal interfaces, the method comprising: receiving 3-dimensional (3D) scan data of a vitreoretinal interface collected using optical coherence tomography, wherein the 3D scan data includes line scan data for a plurality of lines; using the line scan data corresponding to a first line included in the plurality of lines at the vitreoretinal interface, detecting the vitreoretinal interface over the first line; based on the vitreoretinal interface detected, detecting membrane locations along the first line, the membrane locations indicative of a vitreoretinal membrane; and based on the membrane locations, generating a first line mask over the first line.