Tomographic scanning imager.
In tomographic scanning (TOSCA) imaging, light from a scene is focused onto a reticle mask using conical scan optics, and collected on a single element detector. Alternatively, one or several detectors replace the reticle. Tomographic processing techniques are then applied to the one-dimensional signal to reproduce a two-dimensional image. The TOSCA technique is presented in detail, including its mathematical foundations and some of its limitations. It is shown how TOSCA imaging can be used in a multispectral configuration, and compares well with more conventional alternatives both in simplicity and performance. Examples of image reconstruction using TOSCA techniques are shown.
Hovland
Harald
H
Norwegian Defence Research Establishment (FFI), Postboks 25, NO-2027 Kjeller, Norway. harald.hovland@ffi.no
D000465:Algorithms; D003198:Computer Simulation; D004784:Environmental Monitoring / Q000295:instrumentation; D004867:Equipment Design; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007259:Infrared Rays; D015233:Models, Statistical; D055095:Optics and Photonics; D014054:Tomography / Q000295:instrumentation* / Q000379:methods; D015898:Tomography Scanners, X-Ray Computed