When we interpret a shaded picture as a three-dimensional (3D) scene, our visual system often needs to guess the position of the light source in order to resolve a convex-concave ambiguity. For more ...

THE increasing use of double carriage-way arterial roads has given new problems to the street lighting engineer. Some of these are discussed in a paper on the revealing power of street lighting ...

Do you sell things on Etsy or occasionally throw something up on Ebay or Craigslist? Would you like to know the secret to taking better product photos that help you sell your items, rather than hinder ...