Tag Archives: outlier

Gaze tracking as a novel input method

Smartphones and tablets usually have a camera on their back, to take photographs, and a frontal camera for videoconferencing.       In a recent model (Samsung Galaxy S4) the frontal camera can be used as an input device too: … Continue reading

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Vanishing points in presence of noise

Most self-calibration algorithms require a prior knowledge of the camera calibration matrix ; as an instance, you need it to normalize the image points as and therefore fit the essential matrix . With most commercial cameras it is safe to … Continue reading

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Lagrangian rejection and fitting/2

Summarizing the previous article: we have a set of samples, mostly affected by errors having a Gaussian distribution. Zero or more of the samples may be outliers, that is affected by exceptional errors which do not fit in the Gaussian … Continue reading

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Lagrangian rejection and fitting

Fitting a mathematical model to a set of samples (eg fitting a sphere to a set of 3D cartesian points supposed to lie on its surface) is not an easy task. The samples usually come from measurement and as such, … Continue reading

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