Microlens array camera with variable apertures for single-shot high dynamic range (HDR) imaging

被引：5

作者：

Cha, Young-Gil ^{[1
,2
]}

Na, Jiwoong ^{[3
]}

Kim, Hyun-Kyung ^{[1
,2
]}

Kwon, Jae-Myeong ^{[1
,2
]}

Huh, Seok-Haeng ^{[4
]}

Jo, Seung-Un ^{[4
]}

Kim, Chang-Hwan ^{[5
]}

Kim, Min H. ^{[3
]}

Jeong, Ki-Hun ^{[1
,2
]}

机构：

[1] Korea Adv Inst Sci & Technol KAIST, Dept Bio & Brain Engn, 291 Daeehak Ro, Daejeon 34141, South Korea

[2] KAIST Inst Hlth Sci & Technol KIHST, 291 Daehak Ro, Daejeon 34141, South Korea

[3] Korea Adv Inst Sci & Technol, Sch Comp, 291 Daeehak Ro, Daejeon 34141, South Korea

[4] LIG NEX1, 333 Pangyo Ro, Seongnam Si 13488, Gyeonggi Do, South Korea

[5] Def Rapid Acquisit Technol Res Inst, 16 Gil, Seoul, South Korea

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 18期

基金：

新加坡国家研究基金会;

关键词：

DIFFERENTLY EXPOSED IMAGES; COMPOUND-EYE;

D O I：

10.1364/OE.498763

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a microlens array camera with variable apertures (MACVA) for high dynamic range (HDR) imaging by using microlens arrays with various sizes of apertures. The MACVA comprises variable apertures, microlens arrays, gap spacers, and a CMOS image sensor. The microlenses with variable apertures capture low dynamic range (LDR) images with different f-stops under single-shot exposure. The reconstructed HDR images clearly exhibit expanded dynamic ranges surpassing LDR images as well as high resolution without motion artifacts, comparable to the maximum MTF50 value observed among the LDR images. This compact camera provides, what we believe to be, a new perspective for various machine vision or mobile devices applications.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：29589 / 29595

页数：7

共 34 条

[1] [Anonymous], 1994, MIT Media Lab Perceptual
[2] High Contrast Ultrathin Light-Field Camera Using Inverted Microlens Arrays with Metal-Insulator-Metal Optical Absorber
Bae, Sang-In
Kim, Kisoo
Jang, Kyung-Won
Kim, Hyun-Kyung
Jeong, Ki-Hun
[J]. ADVANCED OPTICAL MATERIALS, 2021, 9 (06)
[3] Multifocal microlens arrays using multilayer photolithography
Bae, Sang-In
Kim, Kisoo
Yang, Sungpyo
Jang, Kyung-Won
Jeong, Ki-Hun
[J]. OPTICS EXPRESS, 2020, 28 (07) : 9082 - 9088
[4] Debevec P. E., 1997, ACM SIGGRAPH 2008 CL, P369
[5] Catadioptric planar compound eye with large field of view
Deng, Huaxia
Gao, Xicheng
Ma, Mengchao
Li, Yunyang
Li, Hang
Zhang, Jin
Zhong, Xiang
[J]. OPTICS EXPRESS, 2018, 26 (10): : 12455 - 12468
[6] Digital micromirror device camera with per-pixel coded exposure for high dynamic range imaging
Feng, Wei
Zhang, Fumin
Wang, Weijing
Xing, Wei
Qu, Xinghua
[J]. APPLIED OPTICS, 2017, 56 (13) : 3831 - 3840
[7] Biologically Inspired Ultrathin Contact Imager for High-Resolution Imaging of Epidermal Ridges on Human Finger
Jang, Kyung-Won
Kim, Kisoo
Bae, Sang-In
Jeong, Ki-Hun
[J]. ADVANCED MATERIALS TECHNOLOGIES, 2021, 6 (08)
[8] Monolithic polymer microlens arrays with antireflective nanostructures
Jung, Hyukjin
Jeong, Ki-Hun
[J]. APPLIED PHYSICS LETTERS, 2012, 101 (20)
[9] Deep High Dynamic Range Imaging of Dynamic Scenes
Kalantari, Nima Khademi
Ramamoorthi, Ravi
[J]. ACM TRANSACTIONS ON GRAPHICS, 2017, 36 (04):
[10] Ultrafast Plasmonic Nucleic Acid Amplification and Real-Time Quantification for Decentralized Molecular Diagnostics
Kang, Byoung-Hoon
Jang, Kyung-Won
Yu, Eun-Sil
Na, Hamin
Lee, Yun-Jae
Ko, Woong-Yeol
Bae, NamHo
Rho, Donggee
Jeong, Ki-Hun
[J]. ACS NANO, 2023, 17 (07) : 6507 - 6518

← 1 2 3 4 →