Vision Solution
Good vision systems are difficult to engineer. Our brain, as far as computations are concerned, is a very parallel system. It can account for contrast and brightness, recognize and categorize a seemingly endless number of shapes, and set our eyes to focus faster than any commercial camera, all simultaneously. It can also, through the depth perception of having two eyes or through the patterns of experience, give volume to the two dimensional image your eyes obtain.
Replicating these tasks on a computer is nothing short of impossible with today’s level of research and design.
What the computer does well though is sequential logic very quickly. Vision systems use this to their advantage by constraining the vision problem to one task at the time. In the end the computer can attack and solve particular vision problems better than our own vision systems can.
Today we will be detecting the value of an off-the-shelf PSI gauge using NI Vision Builder. Hopefully our solution gives some insight into the current level of vision systems.
Acquire
The first step in any vision application is to acquire the image. Vision Builder makes this particularly easy for USB, Firewire, or Ethernet cameras.
