Biological Vision: A 21St Century Tutorial

After applying the principles of visual science to military reconnaissance and intelligence for many years, the author has prepared a tutorial integrating the many fundamental mechanisms underlying the visual capability found in the animal kingdom. He shows that multicolor vision has been found in the animal kingdom from the beginning (for at least 500 million years) and that vision is generally tetrachromatic. He shows that human vision follows this general plan, although its spectral perf...