Sampleling

How does digital sampling affect resolution

Look at imaging these object with a digital camera

 

How close together do pixels need to be?

or

how often do you need to image a moving sample

Nyquist theory states that you should sample over  2 X the frequency that you expect.

Over sampling

Nyquist sampling

under sampling causes aliasing

Optical transfer theory

M

 

references

https://imb.uq.edu.au/research/facilities/microscopy/training-manuals/microscopy-online-resources/image-capture/nyquist-conditions

https://microscopy.berkeley.edu/courses/dib/sections/02images/sampling.html