CA2968024C - Autofocus system and method in digital holography - Google Patents

Autofocus system and method in digital holography Download PDF

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Publication number
CA2968024C
CA2968024C CA2968024A CA2968024A CA2968024C CA 2968024 C CA2968024 C CA 2968024C CA 2968024 A CA2968024 A CA 2968024A CA 2968024 A CA2968024 A CA 2968024A CA 2968024 C CA2968024 C CA 2968024C
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CA
Canada
Prior art keywords
depths
measure
edge detection
clarity
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA2968024A
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English (en)
French (fr)
Other versions
CA2968024A1 (en
Inventor
Ching-Chun HSIAO
Ting-Ting Chang
Chao Kang Liao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Interuniversitair Microelektronica Centrum vzw IMEC
Imec Taiwan Co
Original Assignee
Interuniversitair Microelektronica Centrum vzw IMEC
Imec Taiwan Co
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Publication of CA2968024A1 publication Critical patent/CA2968024A1/en
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Publication of CA2968024C publication Critical patent/CA2968024C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G03H1/0866—Digital holographic imaging, i.e. synthesizing holobjects from holograms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0443—Digital holography, i.e. recording holograms with digital recording means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0443—Digital holography, i.e. recording holograms with digital recording means
    • G03H2001/0447—In-line recording arrangement
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G03H1/0866—Digital holographic imaging, i.e. synthesizing holobjects from holograms
    • G03H2001/0883—Reconstruction aspect, e.g. numerical focusing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/136—Segmentation; Edge detection involving thresholding
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/187—Segmentation; Edge detection involving region growing; involving region merging; involving connected component labelling

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Automatic Focus Adjustment (AREA)
  • Holo Graphy (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Focusing (AREA)
CA2968024A 2014-11-28 2015-11-30 Autofocus system and method in digital holography Expired - Fee Related CA2968024C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TW103141335A TWI557462B (zh) 2014-11-28 2014-11-28 自動聚焦系統與方法
TW103141335 2014-11-28
PCT/EP2015/078089 WO2016083620A1 (en) 2014-11-28 2015-11-30 Autofocus system and method in digital holography

Publications (2)

Publication Number Publication Date
CA2968024A1 CA2968024A1 (en) 2016-06-02
CA2968024C true CA2968024C (en) 2019-11-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2968024A Expired - Fee Related CA2968024C (en) 2014-11-28 2015-11-30 Autofocus system and method in digital holography

Country Status (7)

Country Link
US (1) US10241471B2 (enExample)
EP (1) EP3224678B1 (enExample)
JP (1) JP6490219B2 (enExample)
CN (1) CN108377658B (enExample)
CA (1) CA2968024C (enExample)
TW (1) TWI557462B (enExample)
WO (1) WO2016083620A1 (enExample)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
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EP3260841B1 (en) * 2016-06-22 2024-03-13 Uponor Oyj Detecting microscopic objects in fluids
WO2018064660A1 (en) * 2016-09-30 2018-04-05 University Of Utah Research Foundation Lensless imaging device
EP3339963B1 (en) * 2016-12-21 2020-08-12 IMEC vzw An apparatus and a method for in-line holographic imaging
JP6969164B2 (ja) * 2017-05-31 2021-11-24 株式会社リコー 評価装置、評価プログラム及び評価方法
WO2019102272A1 (en) * 2017-11-24 2019-05-31 Sigtuple Technologies Private Limited Method and system for reconstructing a field of view
CN108364296B (zh) * 2018-02-09 2020-12-01 重庆东渝中能实业有限公司 基于多层全息重建与聚焦策略的细胞群空间分布构建方法
US10699875B2 (en) * 2018-11-13 2020-06-30 Fei Company Confocal imaging technique in a charged particle microscope
WO2021069973A1 (en) * 2019-10-11 2021-04-15 miDiagnostics NV System and method for object detection in holographic lens-free imaging by convolutional dictionary learning and encoding with phase recovery
EP3839636B1 (en) * 2019-12-20 2024-03-13 Imec VZW A device for detecting particles in air
CN112098997B (zh) * 2020-09-18 2021-10-15 欧必翼太赫兹科技(北京)有限公司 三维全息成像安检雷达图像异物检测方法
CN112529791B (zh) * 2020-11-16 2023-05-26 中国海洋大学 基于浮游生物数字全息图像的自适应性多焦点复原方法
JP7591424B2 (ja) * 2021-02-24 2024-11-28 日本放送協会 インコヒーレントホログラム撮像装置
CN112969026A (zh) * 2021-03-18 2021-06-15 德州尧鼎光电科技有限公司 一种成像椭圆偏振仪的焦平面自动聚焦方法
CN113286079B (zh) * 2021-05-10 2023-04-28 迈克医疗电子有限公司 图像对焦方法、装置、电子设备及可读存储介质
CN113359403B (zh) * 2021-05-21 2022-08-12 大连海事大学 一种用于无透镜数字全息成像的自动聚焦方法
CN114548884B (zh) * 2022-04-27 2022-07-12 中国科学院微电子研究所 一种基于剪枝轻量化模型的包裹识别方法和系统
CN115471425B (zh) * 2022-10-08 2025-11-14 清华大学深圳国际研究生院 一种无透镜成像系统的边缘增强方法
FR3141785B1 (fr) * 2022-11-03 2024-12-13 Fond B Com Procédé et dispositif d’estimation d’une carte de profondeur associée à un hologramme numérique représentant une scène et programme d’ordinateur associé
CN116642895B (zh) * 2023-07-27 2023-09-29 宏椿智能科技(苏州)有限公司 一种焦平面扫掠的五面成像3d重构方法
CN119405262B (zh) * 2024-01-10 2025-09-16 中国科学院理化技术研究所 术中监测准周期运动心肌血流的方法及装置
CN118447067A (zh) * 2024-05-11 2024-08-06 同方威视技术股份有限公司 一种图像处理方法、装置和透射扫描系统
CN120593567B (zh) * 2025-08-04 2025-10-10 山东神戎电子股份有限公司 一种适用于高频红外热成像的目标清晰度自适应方法、装置及介质

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Publication number Priority date Publication date Assignee Title
KR20090018711A (ko) * 2006-06-09 2009-02-20 위구-디바이스 아이엔씨. 무한 보정 현미경의 자동 포커싱을 위한 방법 및 장치
US9514271B2 (en) * 2010-06-17 2016-12-06 Purdue Research Foundation Digital holographic method of measuring cellular activity and measuring apparatus with improved stability
US9036900B2 (en) * 2011-01-21 2015-05-19 University Of Hyogo Three-dimensional shape measurement method and three-dimensional shape measurement device
KR102068744B1 (ko) * 2012-05-04 2020-01-21 삼성전자주식회사 초점 검출장치
CN105264443B (zh) * 2013-06-06 2019-05-31 视瑞尔技术公司 用于计算全息图的数据的装置和方法
KR101820563B1 (ko) * 2014-12-31 2018-01-19 한국전자통신연구원 홀로그램 데이터 포맷과 홀로그래픽 비디오 시스템 장치 및 방법

Also Published As

Publication number Publication date
US20170322516A1 (en) 2017-11-09
TWI557462B (zh) 2016-11-11
JP2017538160A (ja) 2017-12-21
US10241471B2 (en) 2019-03-26
CA2968024A1 (en) 2016-06-02
CN108377658A (zh) 2018-08-07
EP3224678A1 (en) 2017-10-04
JP6490219B2 (ja) 2019-03-27
TW201619652A (zh) 2016-06-01
WO2016083620A1 (en) 2016-06-02
CN108377658B (zh) 2019-10-18
EP3224678B1 (en) 2019-02-27

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