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2017-10-31 03:53:29 -0600 answered a question Low RMS value when calibrating single camera, while high RMS value in stereoCalibrate

I think the Camera Matrix is wrong. The fx and fy is too large for cx and cy.

2017-08-09 01:08:35 -0600 received badge  Enthusiast
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2017-08-08 07:02:41 -0600 commented question Pinhole calibration model reduces FOV, should i use Fisheye?

you should first to know about the modle of fisheye and the cameraļ¼Œsensor coordinate.

2017-08-08 07:02:38 -0600 answered a question fisheye::calibrate

the answer was posted here: https://stackoverflow.com/questions/3...

the paper is: A Generic Camera Model and Calibration Method for Conventional, Wide-Angle, and Fish-Eye Lenses, http://www.ee.oulu.fi/~jkannala/publi...

2017-07-10 03:08:29 -0600 answered a question Assertion failure calling cv fisheye::calibrate

There is another solution: Reduce the number of imagesused to calibration. http://answers.opencv.org/question/10...

The max count of images during my test is 6.