Robot/3D Vision

JLI 3D/Robotics systems are solutions for measuring three dimensions, position estimation of objects, bin picking, and sampling.

The systems cover a wide range of production processes. All equipment is designed for the relevant environment.

General features/benefits of our 3D/Robotics systems include:

  • Custom made
  • Adapted to existing production lines or robot manufacturer
  • Internet connection for support

 Examples of Systems Commisioned by JLI

Robot Sampling Station

Robot Sampling Station

The Robot Sampling Station is an ideal tool for any production where highly precise measurements are critical or regular sampling of the production is needed. It typically replaces manual human inspection.

  • Standalone unit with compact design
    High dimensional accuracy
  • Advanced surface inspection
  • Based on Universal Robot and standard vision system
  • Replaces error-prone manual inspection
  • Statistical report of measurements
  • Very intuitive HMI - Easy setup for new product

Stereo Vision

A commonly used 3D system is stereo imaging where two cameras are used to capture two separate images of a scene from two different positions. The location and optical parameters of each camera must be calibrated so that triangulation methods can be used to determine the correspondence between pixels in each image. Depth in the scene can be computed since the depth of each point is inversely proportional to the difference in the distance of the corresponding points and their camera centers. Positional and optical parameters of the two cameras must be accurately calibrated. An increasing number of pre-calibrated products such as from Point Grey are available and are often used to solve issues regarding safety, volume measurement and gripping objects with a robot.


Structured Light

For many years structured light has been the most common approach to obtaining 3D image data. Typically done by projecting a laserline onto the surface of a moving object on a conveyor. Afterwards performing simple triangulation on the geometry of the camera, laser line and reflected laserline may extract the height information and 3D info. Companies such as SICK and LMI technologies have a well developed portfolio of structured light systems that come pre-calibrated. For many types of applications this is a solid and robust method. It does require either the object to be moving past the system or a movement of the system itself. A single system will also have limitations when it comes to occlusions on the object.


New 3D Techniques

Time of flight products incorporate illumination sources and imagers that illuminate objects in a scene with a modulated light source and then measure the phase shift between the illumination and the reflection to determine distance measurement. The scene is either illuminated by a pulsed mode or continuous wave (CW) illumination source, with a corresponding method to detemine the phase shifts. Companies like Odos imaging and Basler already have products available and could find their way into the self-driven cars as just one of many sensors. 3D techniques that shows a lot of promise and will soon find their way to industrial use, includes shape from shading, fringe projection, plenoptic/lens array cameras.