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2014-11-06 10:24:55 -0500 | asked a question | Does the calibration from circular pattern do any kind of correction to the centers of the circles? According to the pinhole camera model, a circle in the 3D world will appear as an ellipse in the 2D image, it is well known that the center of the circle does not project to the center of the ellipse in the image, or, in other words
I think that the goal of Some references: HEIKKILA, Janne. Geometric camera calibration using circular control points. ZHANG, Guangjun; WEI, Zhenzhong. A position-distortion model of ellipse centre for perspective projection. RUDAKOVA, Victoria; MONASSE, Pascal. Camera matrix calibration using circular control points and separate correction of the geometric distortion field. In: |

2013-08-01 11:23:41 -0500 | commented question | Calc eucliadian distance between two single point ? Just a comment about your euclideanDist function: if diff.x (or diff.y) is too big it can overflow and the function will give you an incorrect distance. You can avoid the problem using the C/C++ standard function called hypot or _hypot. For more info see http://www.johndcook.com/blog/2010/06/02/whats-so-hard-about-finding-a-hypotenuse/ |

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2013-07-20 07:08:04 -0500 | asked a question | Is nonlinear minimization (like Levenberg–Marquardt) directly available? I need to minimize a function Is there any direct available algorithm for this kind of minimization? For example I read here that the C++ class |

2013-04-10 12:32:23 -0500 | commented answer | angle estimation accuracy in C++ cv::phase Is there any theoretic background? Or is it just a brute force comparison? |

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2013-04-10 01:26:55 -0500 | answered a question | Template Matching with Multiple Occurance Hello, I have just an hint, not a full answer: I am assuming Then maybe you have to smooth this area where the first peak was, in order to avoid false peak detection in that area. Then you perform a new |

2013-04-09 09:57:05 -0500 | asked a question | angle estimation accuracy in C++ cv::phase In phase documentation is stated:
Can you explain how that number is computed? |

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2013-03-19 03:16:12 -0500 | asked a question | Is it possible to convert the CvMat's type to the underlying C++ type? Hello, if I have a |

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