Camera calibration is the mechanism for estimating the parameters of the lens and image sensor of a camera. These parameters are known as intrinsics and extrinsics. These parameters can be used to measure the size of an object in real-world units, correct lens distortion, or determine the location of the camera in a specific frame of reference. Camera calibration is not necessary, but when provided will significantly improve the functionality of Vuforia Engine. Vuforia Engine uses the intrinsics and the distortion parameters to improve performance of detection and tracking.
- Print calibration template file
- Capture camera frames
- Process camera frames in Camera Calibration Toolbox
- Update the custom driver with calibration results
- Your preferred Camera calibration tool
- A method of capturing Frames from the camera or device
- A way to print a PDF file – preferably with stiff backing
This procedure will require a Camera calibration tool. There are various tools available for use. Below are some options for camera calibration tools:
- GML Camera Calibration Toolbox – http://graphics.cs.msu.ru/en/node/909
- 3DF Zephyr - https://www.3dflow.net/
This document shows how to obtain calibration data using the GML Camera Calibration Toolbox.