<title>Range data acquisition by coded structured light: error characteristic of binary and gray projection code</title>

Abstract

Projection of coded patterns is a popular method for the acquisition of dense range images. Usually, the binary code or gray code is used for projection patterns. In this paper we investigate the light plane identification error in the two codes. Our main result is that the binary code and gray code have the same error characteristic while the partial gray code is superior to the partial binary code.