Laser & Optoelectronics Progress, Volume. 57, Issue 23, 230901(2020)
Edge Extraction Technologies Based on an Optical Scanning Holographic System
Two methods for the edge extraction of optical pupils in optical scanning holographic systems were proposed, and the holographic information of objects was obtained based on double pupil heterodyne detection. First, LG beam-axis cone lens pupil and aperture filter were used as two pupils to form a composite light field, which was able to scan the object to extract edge information. Second, when the aperture filter was unchanged, the other pupil used a power amplitude-type pupil with function distribution and edge information extraction. Computer simulation experiments show that the edge extraction qualities of the two pupils described in this paper are improved in comparison with the use of a ring pupil, and digital image processing is not required, which simplifies the experimental steps.
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Li Yang, Yuli Lou, Chongguang Li, Rende Wang, Huaying Wang, Zhao Dong, Jinbin Gui, Qinghe Song, Qingwei Liu. Edge Extraction Technologies Based on an Optical Scanning Holographic System[J]. Laser & Optoelectronics Progress, 2020, 57(23): 230901
Category: Holography
Received: Mar. 25, 2020
Accepted: Apr. 7, 2020
Published Online: Dec. 7, 2020
The Author Email: Lou Yuli (578928841@qq.com)