Investigation into the Utility of the Pixon Image Reconstruction Technique for the DRDC Coded Aperture X-ray Backscatter Imager


  1. Puetter, R.
Corporate Authors
Defence R&D Canada - Suffield, Ralston ALTA (CAN);Pixon LLC, East Setauket NY (US)
DRDC Suffield is developing a portable nuclear imaging technology that will provide sufficient speed, contrast and spatial resolution to enhance significantly the ability of Explosive Ordnance Detection (EOD) operators to identify and evaluate the internal construction of Improvised Explosive Devices (IED) and other suspicious objects. Based on the technique of Coded Aperture Imaging, this novel technology will only require access to a single side of a suspicious object, and will provide the ability to reconstruct images in depth. The latter feature is unique to this approach, and is quite unlike any other current field portable imaging techniques. While the depth reconstruction capability of the approach has been known for a few years, no one has yet demonstrated an algorithm that would efficiently reconstruct the 3D position of a target using the data available from a fixed mask-detector Coded Aperture design. One interesting approach to discern the depth information inherit in the Coded Aperture data maybe the Pixon method, which represents a new and innovative way of modelling an image in terms of its information content. This report details a feasibility study to ascertain the potential for the Pixon image analysis method to reconstruct the 3D position of targets using the data available from a Coded Aperture X-ray Backscatter Imager.
X-ray;Imaging;Coded Aperture;Landmine;IED;Explosive;Detection
Report Number
DRDC-SUFFIELD-CR-2005-122 — Contractor Report
Date of publication
01 Jun 2005
Number of Pages
Hardcopy;CD ROM

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