topic Re: About Lens calibration for surround view sample application in i.MX Processors

About Lens calibration for surround view sample application

hsaito — Thu, 21 Sep 2023 07:54:46 GMT

We are using the camera is corrected only in the y-axis.

We wants to surround view application using this camera.

The attached image is a reference image of the camera's video output.

Does OcamCalib support this camera calibration?

Re: About Lens calibration for surround view sample application

jimmychan — Fri, 22 Sep 2023 08:59:10 GMT

There are two documents show the details. Please read :

Surround View Application User's Guide

Surround View Application Reference Manual

Re: About Lens calibration for surround view sample application

Kuniyan — Fri, 27 Oct 2023 13:01:29 GMT

Hello, I would like to know how to use OCamCalib toolbox for Matlab.
If I use OCamCalib for a camera whose Y-axis has already been corrected on the camera itself (Fig. 1), Fisheye distortion will become stronger as shown in Fig. 2. Please tell me how to successfully remove Fisheye distortion from X-axis only. Please refer to attached.

Re: About Lens calibration for surround view sample application

Kuniyan — Mon, 04 Dec 2023 14:54:18 GMT

Hello, I would like to know how to use OCamCalib toolbox for Matlab.
Is OCamCalib toolbox able to correct the camera which Y-axis(Red line) has already been corrected as shown in Fig. 1?
If OCamCalib toolbox able to correct the camera like above, please tell me how to use OCamCalib toolbox in order to complete the Goal image(Fig.2) in Surround view application finally. Please refer to attached. Please suggest any possible solution for this problem as soon as possible.

Re: About Lens calibration for surround view sample application

Kuniyan — Tue, 19 Dec 2023 13:33:58 GMT

Hello, I would like to know how to use OCamCalib toolbox for Matlab. The attached photos are 10 images of the checkerboard taken with 190 degree fisheye camera. Is it possible to correct the lens from these images using OcamCalib toolbox? However, this fisheye camera has already been corrected in the Y-axis direction by the camera itself.

Re: About Lens calibration for surround view sample application

Kuniyan — Tue, 19 Dec 2023 13:29:12 GMT

I have attached the remaining 5 images.