物理学报Issue(23)：234207-1-234207-8,8.DOI:10.7498/aps.62.234207
基于同态信号处理的数字全息广义线性重建算法研究
Generalized linear reconstructing algorithm based on homomorphic signal processed in digital holographic microscopy
摘要
Abstract
In order to improve the accuracy and the speed of reconstructing an image, the digital holographic generalized linear reconstructing algorithm based on homomorphic signal processing is proposed. By using the pre-magnification digital holographic imaging system and the principle of homomorphic signal processing, the proposed algorithm is analyzed theoretically. The achieving condition for and reconstructing process of the proposed algorithm is presented. Then the theoretical results are demonstrated by simulations and experimental data. Results show that the zero-order term of digital hologram frequency spectrum can be eliminated effectively by the proposed algorithm so as to realize the high-precision reconstruction of the digital hologram. Because a whole quadrant is chosen as the filtered area, the manual frequency filtering operation needed in common linear reconstructing algorithm is avoided and then the reconstructing speed is improved greatly. Meanwhile, the high-frequency component of the reconstructed original image can be reserved up to the hilt so that the high resolution image can be achieved.关键词
数字全息显微术/同态信号处理/傅里叶变换/分辨率Key words
digital holographic holography/homomorphic signal processing/Fourier transform/resolution引用本文复制引用
王华英,于梦杰,刘飞飞,江亚男,宋修法,高亚飞..基于同态信号处理的数字全息广义线性重建算法研究[J].物理学报,2013,(23):234207-1-234207-8,8.基金项目
国家自然科学基金(批准号:61077001和61144005)、河北省自然科学基金(批准号:F2010001038, F2012402051和A2013402036)和河北省科技支撑计划(批准号:09277101D和13210201D)资助的课题.*Project supported by the National Natural Science Foundation of China (Grant Nos.61077001,61144005), the Natural Science Foundation of Hebei Province, China (Grant Nos. F2010001038, F2012402051, A2013402036), and the Key Technology Research and Development Program of Hebei Province, China (Grant Nos.09277101D,13210201D) （批准号:61077001和61144005）
