Calibration targets

1. What are calibration targets?
2. Why is it important to calibrate each objective?
3. What is a calibration grid?
4. What is camera calibration in computer vision?

What are calibration targets?

A calibration target is a reference object that consists of a defined shape grid pattern manufactured to a surface. The target is used to calibrate the projection of a DIC experiment together with the Dantec Dynamics' DIC software, Istra4D.

Why is it important to calibrate each objective?

The goal of calibration is to minimise any measurement uncertainty by ensuring the accuracy of test equipment. Calibration quantifies and controls errors or uncertainties within measurement processes to an acceptable level.

What is a calibration grid?

The Calibration Grid is a pattern of dots specifically designed for the Camera Calibrator. There are a number of ways to set up the grid for photography depending on the size you need and the available equipment.

What is camera calibration in computer vision?

Geometric camera calibration, also referred to as camera resectioning, estimates the parameters of a lens and image sensor of an image or video camera. You can use these parameters to correct for lens distortion, measure the size of an object in world units, or determine the location of the camera in the scene.