Off-axis Digital Holographic Re construction based on the Spatial Filtering of the Hologram Illuminated with the Reference Wave
In order to eliminate the zero-order and conjugate image in off-axis digital holography,a new method based on the spatial filtering of the hologram illuminated with the reference (written as ‘Rih) wave is proposed.By using ‘RIh and the low-pass filter to do the convolution operation,the real image of the object without the zero-order and conjugate image is directly obtained.Simultaneously,the real image always appears in the center of the reconstructed image plane.The spectrum characteristic of ‘Rib is analyzed.A comparative analysis of the spectrum characteristics of the hologram and ‘Rih is discussed.The theoretical and experiment results show that:this method requires only one hologram,and do once Fourier transform.The process of designing filtering window is simple and convenient.
Off-axis Digital hologram Spatial Filtering the Zero-order and Conjugate Image
Yan Xu Peizhen Qiu
School of Science,Huzhou Teachers College,Huzhou,313000,China
国际会议
郑州
英文
159-163
2013-10-19（万方平台首次上网日期，不代表论文的发表时间）