On the Vision of Depth

Most techniques introduced so far by instrument-makers to minimize chromatic aberrations avail themselves of (monochromatic) point sources and are devised for correcting flat images. However, when reproducing spatial scenes, the color combination does contribute to depth perception. The purpose of this paper is to briefly account for the dependence of depth decoding upon the illumination conditions. We consider decoding by the eyes in the two extreme cases of LASER and natural lighting.