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LINE SCAN ACQUISITION FOR TIME-RESOLVED IMAGING THROUGH SCATTERING MEDIA

HEBDEN, JC; (1993) LINE SCAN ACQUISITION FOR TIME-RESOLVED IMAGING THROUGH SCATTERING MEDIA. OPT ENG , 32 (3) 626 - 633.

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Abstract

Transmission images of highly scattering objects can be produced by recording and discriminating between the times of flight of transmitted photons. High spatial resolution requires a detector with high temporal resolution, and a streak camera has proven to be particularly effective. However, since the aperture of a streak camera is necessarily a narrow slit, the camera must consecutively sample different regions of the object in order to generate a two-dimensional image. A method is described that involves sampling a series of lines across an object. The benefits and limitations of this method are discussed, and the results of an experiment are presented that illustrate the inherent spatial resolution. Our conclusion is that the line scan method is more efficient than a point scan method in terms of light collection and probably need not result in a substantial decrease in spatial resolution.

Type:Article
Title:LINE SCAN ACQUISITION FOR TIME-RESOLVED IMAGING THROUGH SCATTERING MEDIA
Keywords:TIME OF FLIGHT, OPTICAL IMAGING, STREAK CAMERA, SPATIAL RESOLUTION, HOLOGRAPHY
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Medical Physics and Bioengineering

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