CN116113862A - 用于实现工业相机对焦的方法和装置 - Google Patents

用于实现工业相机对焦的方法和装置 Download PDF

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Publication number
CN116113862A
CN116113862A CN202080103884.7A CN202080103884A CN116113862A CN 116113862 A CN116113862 A CN 116113862A CN 202080103884 A CN202080103884 A CN 202080103884A CN 116113862 A CN116113862 A CN 116113862A
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CN
China
Prior art keywords
image
roi
industrial camera
sharpness values
values
Prior art date
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Pending
Application number
CN202080103884.7A
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English (en)
Inventor
席宝时
华韬
吴剑强
李韬
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Siemens Ltd China
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Siemens Ltd China
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Publication date
Application filed by Siemens Ltd China filed Critical Siemens Ltd China
Publication of CN116113862A publication Critical patent/CN116113862A/zh
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • G02B7/38—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals measured at different points on the optical axis, e.g. focussing on two or more planes and comparing image data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
    • B25J19/02—Sensing devices
    • B25J19/021—Optical sensing devices
    • B25J19/023—Optical sensing devices including video camera means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Image Analysis (AREA)
  • Studio Devices (AREA)
  • Manipulator (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

一种用于实现工业相机(102)对焦的方法(200)，工业相机(102)固定在可移动的机器人(101)上，包括：以第一步长移动机器人(101)来捕获目标物体(105)的第一目标图像(S201)；确定第一ROI图像(S202)；评估第一ROI图像以生成第一多个清晰度值(S203)；基于第一多个清晰度值，确定单峰搜索方向(S204)；根据单峰搜索方向，以第二步长移动机器人(101)来捕获目标物体(105)的第二目标图像(S205)；确定第二ROI图像(S206)；评估第二ROI图像以生成第二多个清晰度值(S207)；基于第一多个清晰值中的一部分和第二多个清晰值的一部分，估计对焦最清晰位置(S208)。实现了工业相机(102)快速准确的自动对焦，无需人工参与，有效提高了现场工作效率，并且可灵活地适用于安装的多种工业相机(102)及镜头，从而有效地降低了现场成本。

Description

PCT国内申请，说明书已公开。

Claims (19)

  1. PCT国内申请，权利要求书已公开。
CN202080103884.7A 2020-09-11 2020-09-11 用于实现工业相机对焦的方法和装置 Pending CN116113862A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/114892 WO2022052066A1 (zh) 2020-09-11 2020-09-11 用于实现工业相机对焦的方法和装置

Publications (1)

Publication Number Publication Date
CN116113862A true CN116113862A (zh) 2023-05-12

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EP (1) EP4194944A4 (zh)
CN (1) CN116113862A (zh)
WO (1) WO2022052066A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115835016B (zh) * 2022-11-16 2024-04-23 中国科学院新疆理化技术研究所 抗辐射摄像机开环式自动对焦方法、装置、设备及介质

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1420379A (zh) * 2001-11-16 2003-05-28 力捷电脑股份有限公司 扫描装置的对焦方法
DE202004001745U1 (de) * 2004-02-05 2004-04-22 Sick Ag Kamera
US9398205B2 (en) * 2010-09-01 2016-07-19 Apple Inc. Auto-focus control using image statistics data with coarse and fine auto-focus scores
CN105938243B (zh) * 2016-06-29 2018-04-13 华南理工大学 一种tft‑lcd检测中多倍率显微镜快速对焦方法
CN108152869B (zh) * 2016-10-14 2020-04-21 北京信息科技大学 一种适于仿生视觉快速调焦的小步长调焦方法
JP6862225B2 (ja) * 2017-03-09 2021-04-21 キヤノン株式会社 撮像装置、撮像装置の制御方法、及びプログラム
CN107748428A (zh) * 2017-10-18 2018-03-02 歌尔股份有限公司 屏幕检测自动对焦方法及装置
CN108628061B (zh) * 2018-05-07 2020-09-29 凌云光技术集团有限责任公司 一种工业相机自适应自动对焦方法及装置
CN111031245A (zh) * 2019-12-19 2020-04-17 苏州光测视界智能科技有限公司 一种工业相机镜头调节用控制器及控制方法
CN111515944B (zh) * 2020-03-30 2021-09-17 季华实验室 非固定路径机器人自动标定方法

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EP4194944A1 (en) 2023-06-14
WO2022052066A1 (zh) 2022-03-17
EP4194944A4 (en) 2024-04-03

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