Spatial resolution - how small or fine details are that an imaging system can display, Contrast resolution - how well can imaging system can distinguish between objects with similiar densities, Bit depth - the number of shades of gray that a digital imaging system can display per pixel, Pixel pitch - the distance from the center of one pixel to the center of the adjacent pixel on the detector, Large bit depth - more shades of grays, Small bit depth - fewer shades of gray , Large pixel pitch - lower spatial resoultion , Small pixel pitch - higher spatial resolution , Matrix - rows and columns of pixels in a digital image, Spatial frequency - the number of line pairs per millimeter that an imaging system can display, High spatial frequency - fine details, small structures , Low spatial frequency - broad structures, large objects ,

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