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When to use the fish eye camera model for calibration?

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POORNAPRAGNA LS
POORNAPRAGNA LS on 11 Sep 2020
Commented: POORNAPRAGNA LS on 17 Sep 2020
In the cameraCalibrator I see that there are 2 lens models avialable - Standard and Fisheye.
How would one know which lens model to use for the calibration? Is it dependent on the field of view of the lens? If yes, what are the ranges for standard and fisheye?
Thank you,
Poorna

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Answers (1)

Monisha Nalluru
Monisha Nalluru on 17 Sep 2020
Camera calibration is the process of computing the extrinsic and intrinsic parameters of a camera. Once you calibrate a camera, you can use the image information to recover 3-D information from 2-D images.
Fisheye camera is generally use a complex series of lenses to enlarge the camera's field of view, enabling it to capture wide panoramic or hemispherical images.
Fisheye cameras are used in odometry and to solve the simultaneous localization and mapping (SLAM) problems visually. Other applications include, surveillance systems, GoPro, virtual reality (VR) to capture 360 degree field of view (fov), and stitching algorithms.
Refer the documentation of Fisheye Callibration for more understanding how it works and its uses

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POORNAPRAGNA LS
POORNAPRAGNA LS on 17 Sep 2020
This does not answer my question. I am aware of the calibration processes for both standard and fisheye lenses. I wanted to know if MATLAB would provide some insights into if the lens is standard or fisheye.

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