Each ZED and ZED Mini has unique optical characteristics. The cameras are factory calibrated and their associated calibration is automatically downloaded when launching a Stereolabs application for the first time (tool, sample, etc.).
You can retrieve the parameters of your camera using the ZED API with
getCameraInformation().calibration_parameters.left_cam. Check the API documentation for more information.
Calibrations files are stored in the following folders and named after each camera serial number:
- On Windows: C:/ProgramData/Stereolabs/settings
- On Linux: /usr/local/zed/settings/
- On Windows (SDK ≤ 2.2.0): C:/Users/YOUR_USER_NAME/AppData/Roaming/Stereolabs/settings/
Notice: The following values are valid for both the ZED and the ZED Mini, only the baseline (distance between optics) changes. The ZED has a 12cm baseline, while the ZED Mini matches the human eyes with a 6.3cm one.
The exact focal length can vary depending on the selected resolution and your own camera calibration.
|Resolution||Focal length in pixels|
Field of View
The field of view formula is the following:
fov = 2*arctan(pixelNumber/(2*focalLength)) * (180/pi)
You can use
pixelNumber to switch between horizontal and vertical resolutions.
|Resolution||V FOV||H FOV|
The focus distance is fixed and ranging from 28cm to the infinite.