CASIA OpenIR  > 中国科学院分子影像重点实验室
Edge enhancement through scattering media enabled by optical wavefront shaping
Li, Zihao1,2,5; Yu, Zhipeng1,2; Hui, Hui3; Li, Huanhao1,2; Zhong, Tianting1,2; Liu, Honglin4; Lai, Puxiang1,2
Source PublicationPHOTONICS RESEARCH
ISSN2327-9125
2020-06-01
Volume8Issue:6Pages:954-962
Abstract

Edge enhancement is a fundamental and important topic in imaging and image processing, as perception of edge is one of the keys to identify and comprehend the contents of an image. Edge enhancement can be performed in many ways, through hardware or computation. Existing methods, however, have been limited in free space or clear media for optical applications; in scattering media such as biological tissue, light is multiple scattered, and information is scrambled to a form of seemingly random speckles. Although desired, it is challenging to accomplish edge enhancement in the presence of multiple scattering. In this work, we introduce an implementation of optical wavefront shaping to achieve efficient edge enhancement through scattering media by a two-step operation. The first step is to acquire a hologram after the scattering medium, where information of the edge region is accurately encoded, while that of the nonedge region is intentionally encoded with inadequate accuracy. The second step is to decode the edge information by time-reversing the scattered light. The capability is demonstrated experimentally, and, further, the performance, as measured by the edge enhancement index (EI) and enhancement-to-noise ratio (ENR), can be controlled easily through tuning the beam ratio. EI and ENR can be reinforced by similar to 8.5 and similar to 263 folds, respectively. To the best of our knowledge, this is the first demonstration that edge information of a spatial pattern can be extracted through strong turbidity, which can potentially enrich the com prehension of actual images obtained from a complex environment. (C) 2020 Chinese Laser Press

KeywordWavefront shaping
DOI10.1364/PRJ.388062
WOS KeywordPHASE-CONTRAST ; QUANTIFICATION ; OBJECTS ; LIGHT
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[81627805] ; National Natural Science Foundation of China[81671726] ; National Natural Science Foundation of China[81671851] ; National Natural Science Foundation of China[81827808] ; National Natural Science Foundation of China[81930048] ; National Key Research and Development Program of China[2016YFC0103803] ; National Key Research and Development Program of China[2017YFA0700401] ; Hong Kong Research Grants Council, University Grants Committee[25204416] ; Hong Kong Innovation and Technology Commission[ITS/022/18] ; Shenzhen Science and Technology Innovation Commission[JCYJ20170818104421564] ; CAS Scientific Instrument RD Programs[YJKYYQ20170075]
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; Hong Kong Research Grants Council, University Grants Committee ; Hong Kong Innovation and Technology Commission ; Shenzhen Science and Technology Innovation Commission ; CAS Scientific Instrument RD Programs
WOS Research AreaOptics
WOS SubjectOptics
WOS IDWOS:000537961100025
PublisherOPTICAL SOC AMER
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/39623
Collection中国科学院分子影像重点实验室
Corresponding AuthorLai, Puxiang
Affiliation1.Hong Kong Polytech Univ, Dept Biomed Engn, Hong Kong, Peoples R China
2.Hong Kong Polytech Univ, Shenzhen Res Inst, Shenzhen 518000, Peoples R China
3.Chinese Acad Sci, Inst Automat, CAS Key Lab Mol Imaging, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China
5.Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
Recommended Citation
GB/T 7714
Li, Zihao,Yu, Zhipeng,Hui, Hui,et al. Edge enhancement through scattering media enabled by optical wavefront shaping[J]. PHOTONICS RESEARCH,2020,8(6):954-962.
APA Li, Zihao.,Yu, Zhipeng.,Hui, Hui.,Li, Huanhao.,Zhong, Tianting.,...&Lai, Puxiang.(2020).Edge enhancement through scattering media enabled by optical wavefront shaping.PHOTONICS RESEARCH,8(6),954-962.
MLA Li, Zihao,et al."Edge enhancement through scattering media enabled by optical wavefront shaping".PHOTONICS RESEARCH 8.6(2020):954-962.
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