Calculate the spatial frequency if the pixel size is 0.03 mm.

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Multiple Choice

Calculate the spatial frequency if the pixel size is 0.03 mm.

Explanation:
Spatial frequency measures how often a pattern repeats per millimeter. In digital imaging, you sample the image at every pixel, so the sampling interval equals the pixel size. The highest frequency you can reproduce without aliasing is half the sampling rate (Nyquist limit). With a pixel size of 0.03 mm, the sampling rate is 1 / 0.03 ≈ 33.33 samples per mm. Half of that is 16.67 line pairs per millimeter, which is the maximum resolvable spatial frequency. So the answer is 16.67 lp/mm.

Spatial frequency measures how often a pattern repeats per millimeter. In digital imaging, you sample the image at every pixel, so the sampling interval equals the pixel size. The highest frequency you can reproduce without aliasing is half the sampling rate (Nyquist limit). With a pixel size of 0.03 mm, the sampling rate is 1 / 0.03 ≈ 33.33 samples per mm. Half of that is 16.67 line pairs per millimeter, which is the maximum resolvable spatial frequency.

So the answer is 16.67 lp/mm.

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