Now that automobiles are beeping to alert you of obstacles while backing up, giving you directions on where to turn, and parallel-parking "hands free," you might have thought that machine vision had already been perfected. Such is not the case. In fact, all of the above applications are using make-shift technologies that substitute for true machine vision. New CMOS imager chips are emerging that directly sense depth—3D pixel-by-pixel—enabling machine vision to realize its goal of perceiving objects, and reacting appropriately. The automotive sensor market already tops $2.5 billion, according to ABI Research (Oyster Bay, N.Y.). Another $750 million is divided among security, industrial automation and videogaming uses of electronic sensors, according to Frost & Sullivan, the Automated Imaging Association and Piper Jaffray, respectively.