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In order to calculate the cross-correlation of two color images treated as vector in a holistic manner, a rapid vertical/parallel decomposition algorithm for quaternion is resented. The calculation for decomposition is reduced from 21 times to 4 times real number multiplications with the same results. An algorithm for cross-correlation of color images based on decomposition in time domain is put forward, in which some properties pointed out in this paper can be utilized to reduce the computational complexity. Simulation results show the effectiveness and superiority of the proposed method. 相似文献
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一种超复数鲁棒相关图像配准算法 总被引:3,自引:0,他引:3
为解决实际应用中彩色图像配准问题,针对已有的超复数互相关方法没有办法处理存在粗差的情况,在超复数互相关方法的基础上,结合鲁棒核函数,提出了一种超复数鲁棒相关的方法.该方法在频域中能使用快速傅里叶变换实现,在满足鲁棒性、实时性和准确性的同时,能通过遍历搜索去获得图像配准的全局解.即使在配准图像间存在粗差或者色彩旋转的情况下,该方法也能获得正确的配准结果.实验结果证明了该方法的有效性. 相似文献
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