3D Calibration
The relationship between camera, robot, and object is
established with the help of a calibration plate.
Introduction of the technology
With 3D calibration, you establish the relationship between a camera and the object. For robotics applications, additionally the relationship between the robot and the camera is determined. With this technology, you get an explicit and accurate description of your area or line scan camera: A set of so-called internal and external camera parameters map the image coordinates to real world coordinates.Particularly suitable for ...
The correction of lens and perspective distortions. This can be realized by rectifying the image, or by measuring in the distorted image and correcting the measuring result. Furthermore, measuring results can be determined in world coordinates and the geometric relationship between the camera and the object can be calculated by the calibration – crucial for robotics applications. All 3D applications require this technology. Typical examples include bin picking as well as stereo applications.Supported by HALCON
HALCON's 3D calibration supports both area and line scan cameras. 3D calibration works also with multiple cameras (multi-view 3D calibration). Usually, a specific calibration object is used for calibration (e.g., calibration plate). Alternatively, self-calibration, without the need of a calibration object, can be used. HALCON's 3D calibration permits, for example, subpixel-accurate measurements up to 1 μm in a field of view of 10 mm.Application example
3D calibration with HALCON for image rectification.
The calibration plate enables HALCON to perform the
camera calibration.
HALCON rectifies perspective distortions.
Distances on the caliper can be measured in the presence of
perspective distortions.
3D Vision Technologies
- Overview
- 3D Calibration
- 3D Matching
- Perspective Matching, Circle Pose & Rectangle Pose
- Stereo Vision
- Monocular 2 ½ D – Depth from Focus & Sheet of Light
Download 3D
vision brochure
