机构地区: 华南农业大学信息学院人机交互研究中心
出 处: 《计算机应用研究》 2009年第3期1154-1156,共3页
摘 要: 提出一种基于离散正交Tchebichef矩的模糊不变矩构造算法,其对中心对称点扩散函数造成的模糊图像具有不变性。该不变矩的构造与基于连续矩构造的模糊不变矩思想相似,但其在计算过程中不存在离散近似误差和坐标变换误差,故在有噪声和无噪声情况下均具有更好的模糊不变性。仿真实验验证了本算法的可行性。 This paper presented a novel method to construct blur-invariant moments based on discrete orthogonal Tchebichef moments in order to deal with blur images affected by a centrosymmetric point spread function(PSF).The structure of proposed blur-invariants was very similar to the ones proposed by Flusser et c.and Wee et c.,but the paper s derivation did not involve numerical approximation of continuous integrals and coordinate space transformation.The blur-invariants have better invariance compared with the one...
领 域: [自动化与计算机技术] [自动化与计算机技术]