The movement of the pixel elements by mechanical dithering spreads light from the incident image among neighboring pixels of the image sensor and therefore performs the same function as {HEAD ~ a birefringent filter} to prevent {TAIL ~ aliasing} in an electronic camera 
to prevent
The movement of the pixel elements by mechanical dithering spreads light from the incident image among neighboring pixels of the image sensor and therefore performs the same function as { HEAD ~ a birefringent filter } to prevent { TAIL ~ aliasing } in an electronic camera
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