【作者】 唐晖； 夏军； 尹涵春；

【Author】 Hui Tang,Jun Xia,Hanchun Yin (Department of Electronic Science and Engineering,Southeast University,Nanjing, Jiangsu,210096)

【机构】 东南大学电子科学与工程学院显示技术研究开发中心；

【摘要】 为了提高计算全息图传统二值化方法的计算速度,本文提出了一种基于块的计算全息图二值化方法。从数值重现和光电重现两个方面验证了这种二值化方法的可行性,并与罗曼Ⅲ型编码重现结果进行比较,比较结果表明对相同尺寸原图计算其二值化全息图,本算法耗时仅为罗曼Ⅲ型编码的1/36。然后分析两种方法各自的优缺点,从理论上解释了影响重现图像质量的原因。结果表明,与罗曼编码相比,本文中提出的二值化方法具有运算快速、准确的优点。更多还原

【Abstract】 In order to improve the speed of traditional binary method for computer generated hologram,a block-based binary method has been proposed in this paper. Feasibility of this binary method was validated by means of both numerical reconstruction and opto-electrical reconstruction.And then the reconstruction results were compared with those of Lohmann codingⅢ.The results shows that the proposed algorithm consumes only 1/36 of the time which is cost by Lomann codingⅢfor the same original object with the same size.Both advantages and disadvantages of these two methods were analyzed.Meanwhile,the reason of the distortion in the reconstructed images was theoretically deduced.The results indicate that the binary method proposed in this paper is not only fast but also accurate compared to Lohmann codingⅢ.更多还原