The reference frame is a 3 axis system that are usually connected by a body, an object or a system that can be used to acquire information or transmit information. For example a camera can be a reference frame, when you record a video, you are recording from a fixed point of view, the lenses of the camera, which has a mean direction. We can use the object frame (the camera) as reference for a robotic arm that gets information from it, so the camera becomes our reference frame.

Main concepts:

  • Reference Frame.
  • Position.
  • Orientation.

Reference Frames Examples:
  1. Camera Reference Frame
  2. Multi joint hand fingertips frame
  3. Virtual world reference frame

Everything has a reference frame in our robotic task.

Main task in robotics: Represent a reference frame of an object into another object’s reference frame, that can be the world reference frame, the camera’s, sensor’s, …