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    Article

    A novel algorithm for a rotation invariant template matching

    A novel algorithm for a rotation invariant template matching is proposed when the fluctuating scope of the rotation angle is limited within the region of [−20°,20°]. The matching candidates are selected using ...

    Ming Lei, Guang-jun Zhang in Optoelectronics Letters (2008)

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    Article

    A circular aperture-array structure optical system for digital sun sensor

    Based on the first type of Rayleigh Sommerfeld diffraction formula, an imaging model of circular aperture-array structure digital sun sensor optical system is developed. Then a 6×6 circular aperture-array stru...

    Zhi-ming Wen, Jie Jiang, Guang-jun Zhang, Qiao-yun Fan in Optoelectronics Letters (2008)