The data binning and manipulation required to reconstruct an image at maximum spatial resolution is substantial, and is still a work in progress. The parallax observed by each pixel is significant relative to the pixel size. We have achieved success correcting for this parallax manually by aligning the data for thin objects, and are working on automated techniques to handle complex, thick objects.
Results
A detector array consisting of up to 20 block detectors is operating on an engineering VACIS unit, providing nearly 130 cm of active imaging height. This prototype array has been used to characterize performance and gather test data. Figure 11 shows an image of a test object scanned with an existing VACIS-II platform and the new detectors. Although this represents the best-case improvement expected, additional testing with thick, dense loads still indicate significant improvement.
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