Ren-jie Liu

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In this paper, a new easy calibration method for para-catadioptric cameras is proposed. We derive a nonlinear constraint on all camera intrinsic parameters from the projections of any three collinear space points on the viewing sphere. With the principal point known, the constraint becomes linear on all other intrinsic parameters which are the effective(More)
In the framework of natural gradient, a Kurtosis-Dependent Parameterized Blind Source Separation (KDPBSS) algorithm is proposed, which can separate the mixture of super-and sub-gaussian sources. A unifying weighed double model is proposed. According to kurtosis value of source and whitening, model parameters are adaptively calculated which can be used to(More)
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