2d vs 3d Vision Robotic Systems

Sunday, February 17, 2019

A&J Automation has incorporated vision in a variety of robotic blasting installations.  Integration of optical devices in robotic automation systems can eliminate the need for component location accessories and simplify the automated processing routine

Advanced imaging and vision are especially useful for component-handling robotic blast systems and robotic loading applications. 2-D vision may be used to determine the exact location of a part that is to be grasped by the robot, for recognition of components by shape, dimensions, bar coding or other component identification marking, for detecting part presence or absence in robotic pick-and-place tasks, and for automation of certain types of optical comparator inspection functions. 3-D vision has of all these capabilities, plus offers the advantages of accurate depth or distance determination.

Robotic vision is constantly evolving but there is still a technological gap between the interpretation of what a robot sees and what a human actually sees.

What is the difference between 2-D and 3-D cameras?

3d vision technology can provide more information on an object that has to be manipulated by the robot. However, improvements still need to be made.

Two-dimensional vision systems have a better track record and are simpler to use. There are a lot of 2d cameras that are available with very good features. The price of high-quality 2d cameras is dramatically dropping because of the widespread use particularly in smartphones and other high-tech applications.

Two-dimensional vision systems have problems with shadows. Most 2d vision applications will use flash or lights placed in the same orientation as the camera to limit shadows. Other applications will install parts on illuminated tables, so the camera can see the contour of the part clearly. Popular 2d vision applications include:

  • Inspection
  • Part location
  • Q-code
  • Barcode reading

Three-dimensional vision is the next big thing, but it is still not technologically ready for widespread use within the industry. Since it is more complex to use and program, it still requires a very good understanding of this technology to be able to introduce 3d vision into a robotic cell. Furthermore, there are very few vision libraries and camera models available on the market. This means that the price and reliability of the cameras are still a long way away from a 2d camera’s reputation. Three-dimensional vision systems are generally used for scene observation, part location, part modeling, and complex vision applications. 

For Vision Inspection & Vision Guided Systems, Assembly & Test, Color Inspection, Environmental Durability Testing Fixtures, Function Testers, PC Based Testing & Manufacturing Software, Pressure Decay Leak Systems and Special Machines & Fixtures call A&J Automation at (586) 468-7555.

We will listen to your unique needs and design the perfect equipment for your manufacturing process. We proudly serve companies in the automotive, agricultural, and medical fields – just to name a few, and we look forward to exceeding your expectations. You can also reach out to us with any questions you may have through the contact form on our website.