KEYWORDS: Image quality, Imaging systems, Modulation transfer functions, Modulation, Absorbance, Image processing, Digital recording, Medical diagnostics, Medical imaging, Visibility
We examine the requirements for a high quality image recording medium and present a new digital hardcopy system that is very suitable for the emerging new medical digital technologies. Imaging is performed using high power solid state lasers, and images are realized without chemical processing. The imaging mechanism of the new system is highly deterministic, and produces images of excellent quality. Novel imaging algorithms are employed to generate 8 to 10 bits of discernible shades of gray. This system has a high dynamic range of optical densities ranging between 0.01 and 3.5, and a MTF that exceeds most analog systems.
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