Doppler Extended Depth of Field Imaging System with Coherent Object Illumination.
Abstract
A packageable system employs priciples of Doppler holography on near-field objects to produce images from which photographs, transparencies or video reproductions can be made with simultaneous improvements in depth of field, foreground-backregion exposure ratio, and resolution (where degraded by the object medium). The apparatus consists of two units: a main unit containing a laser and optics, and an external platform that rotates at an appropriate angular velocity, through a very small arc, during image recording of an object on the platform. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 03, 1979
- Accession Number
- ADD007104
Entities
People
- Charles R. Christensen
- James L. Smith
Organizations
- United States Army