title: Bidirectional scattering distribution functions of maple and cottonwood leaves.
abstract: We present our investigations into the optical scattering properties of both sugar maple (Acer saccarum) and eastern cottonwood (Populus deltoides) leaves in the near-IR wavelength regime. The bidirectional scattering distribution function (BSDF) describes the fractions of light reflected by and transmitted through a leaf for a given set of illumination and observation angles. Experiments were performed to measure the BSDF of each species at a discrete set of illumination and observation angles. We then modeled the BSDFs in such a way that other researchers may interpolate their values for scattering in any direction under illumination at any angle.
authors.affiliation: Electro-Optics Program, University of Dayton, 300 College Park, Dayton, Ohio 45469-0245, USA. Michael.Greiner@wpafb.af.mil
authors.forename: Michael A
authors.initials: MA
authors.lastname: Greiner
authors.forename: Bradley D
authors.initials: BD
authors.lastname: Duncan
authors.forename: Matthew P
authors.initials: MP
authors.lastname: Dierking