title: Two-dimensional spatial-frequency-modulated imaging through parallel acquisition of line images.
abstract: This Letter demonstrates a two-dimensional imaging technique that uses a line scan camera to resolve one spatial dimension and temporal modulation to resolve the perpendicular dimension. A temporal intensity modulation, which increases linearly in frequency along one direction is applied to an illumination beam. The modulated light distribution is imaged onto an object then onto a line scan camera oriented perpendicularly to the direction of the modulation sweep. A line diffuser is placed shortly before the line scan camera and diffuses light along the direction of modulation so that each pixel collects all modulation frequencies.
authors.affiliation: Photonic Microsystems Group, Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Higley
authors.forename: David G
authors.initials: DG
authors.lastname: Winters
authors.forename: Randy A
authors.initials: RA
authors.lastname: Bartels
mesh_terms: D000042:Absorption; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D061848:Optical Imaging / Q000379:methods*; D013997:Time Factors