Microscanning
Microscanning is a method for increasing resolution of
color co-site sampling used at the same time ensures correct reproduction of colors at the pixel density
produced.
Whether the spatial resolution will increase accordingly, depends on the optical resolution of the complete system. The relevant parameter is the resolving power, i.e. how many lines per mm can be resolved. It increases with the aperture of the optical system and is inversely proportional to its magnification. As a result, a low-resolution camera with 500 lines would be enough for an 100X objective with 0.9 aperture. On the other hand, low-magnification objectives profit most from micro scanning: for instance for a 2,5X objective with N.A.=0.12 cameras with as high as 2500 lines resolution could be used.
References
- European patent EP0396687 (1989-10-26), Reimar Lenz, Optoelectronic image sensor