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GB2565247A - Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance - Google Patents

Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance Download PDF

Info

Publication number
GB2565247A
GB2565247A GB1818127.1A GB201818127A GB2565247A GB 2565247 A GB2565247 A GB 2565247A GB 201818127 A GB201818127 A GB 201818127A GB 2565247 A GB2565247 A GB 2565247A
Authority
GB
United Kingdom
Prior art keywords
image
target distance
target
light spot
aiming light
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.)
Granted
Application number
GB1818127.1A
Other versions
GB2565247B (en
GB201818127D0 (en
Inventor
Tan Chinh
D Wittenberg Carl
E Kuchenbrod Harry
P Goren David
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.)
Symbol Technologies LLC
Original Assignee
Symbol Technologies LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US15/165,117 external-priority patent/US11009347B2/en
Priority claimed from US15/170,464 external-priority patent/US9800749B1/en
Application filed by Symbol Technologies LLC filed Critical Symbol Technologies LLC
Priority to GB2118527.7A priority Critical patent/GB2598873B/en
Publication of GB201818127D0 publication Critical patent/GB201818127D0/en
Publication of GB2565247A publication Critical patent/GB2565247A/en
Application granted granted Critical
Publication of GB2565247B publication Critical patent/GB2565247B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10792—Special measures in relation to the object to be scanned
    • G06K7/10801—Multidistance reading
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD scanning
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10712—Fixed beam scanning
    • G06K7/10722—Photodetector array or CCD scanning
    • G06K7/10732—Light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00795—Reading arrangements
    • H04N1/00798—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity
    • H04N1/00816—Determining the reading area, e.g. eliminating reading of margins
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/02409—Focusing, i.e. adjusting the focus of the scanning head
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Image Input (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

A distance to a target to be read by image capture over a range of working distances is determined by directing an aiming light spot along an aiming axis to the target, and by capturing a first image of the target containing the aiming light spot, and by capturing a second image of the target without the aiming light spot. Each image is captured in a frame over a field of view having an imaging axis offset from the aiming axis. An image pre-processor compares first image data from the first image with second image data from the second image over a common fractional region of both frames to obtain a position of the aiming light spot in the first image, and determines the distance to the target based on the position of the aiming light spot in the first image.
GB1818127.1A 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance Active GB2565247B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2118527.7A GB2598873B (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15/165,117 US11009347B2 (en) 2016-05-26 2016-05-26 Arrangement for, and method of, determining a distance to a target to be read by image capture over a range of working distances
US15/170,464 US9800749B1 (en) 2016-06-01 2016-06-01 Arrangement for, and method of, expeditiously adjusting reading parameters of an imaging reader based on target distance
PCT/US2017/032138 WO2017205065A1 (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance

Publications (3)

Publication Number Publication Date
GB201818127D0 GB201818127D0 (en) 2018-12-19
GB2565247A true GB2565247A (en) 2019-02-06
GB2565247B GB2565247B (en) 2022-02-09

Family

ID=59054173

Family Applications (5)

Application Number Title Priority Date Filing Date
GBGB2207933.9A Ceased GB202207933D0 (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance
GBGB2207975.0A Ceased GB202207975D0 (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance
GB1818127.1A Active GB2565247B (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance
GB2118527.7A Active GB2598873B (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance
GBGB2207955.2A Ceased GB202207955D0 (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GBGB2207933.9A Ceased GB202207933D0 (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance
GBGB2207975.0A Ceased GB202207975D0 (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB2118527.7A Active GB2598873B (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance
GBGB2207955.2A Ceased GB202207955D0 (en) 2016-05-26 2017-05-11 Arrangement for, and method of, determining a target distance and adjusting reading parameters of an imaging reader based on target distance

Country Status (4)

Country Link
CN (3) CN114818759A (en)
DE (1) DE112017002649T5 (en)
GB (5) GB202207933D0 (en)
WO (1) WO2017205065A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10803265B2 (en) * 2018-03-22 2020-10-13 Symbol Technologies, Llc Aiming light patterns for use with barcode readers and devices systems and methods associated therewith
US10452885B1 (en) * 2018-04-17 2019-10-22 Zebra Technologies Corporation Optimized barcode decoding in multi-imager barcode readers and imaging engines
US11790197B2 (en) * 2021-10-11 2023-10-17 Zebra Technologies Corporation Miniature long range imaging engine with auto-focus, auto-zoom, and auto-illumination system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090206158A1 (en) * 2006-08-31 2009-08-20 Serge Thuries Auto-focusing method for an automatic data collection device, such as an image acquisition device
US20100147957A1 (en) * 2008-12-17 2010-06-17 Vladimir Gurevich Range finding in imaging reader for electro-optically reading indicia
US9185306B1 (en) * 2014-05-15 2015-11-10 Symbol Technologies, Llc Imaging module and reader for, and method of, illuminating and imaging targets to be read over an extended range of working distances

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7303131B2 (en) * 2004-07-30 2007-12-04 Symbol Technologies, Inc. Automatic focusing system for imaging-based bar code reader
US7538813B2 (en) * 2005-05-11 2009-05-26 Sony Ericsson Mobile Communications Ab Digital cameras with triangulation autofocus systems and related methods
JP5347272B2 (en) * 2008-01-18 2013-11-20 日本電気株式会社 Spot quantification device, spot quantification method and program
JP5515887B2 (en) * 2010-03-15 2014-06-11 カシオ計算機株式会社 Scanner device and program
CN102509302B (en) * 2011-11-22 2013-06-12 浙江浙大鸣泉科技有限公司 Passing light brightness dead line based on human vision for headlamp and HV (Hyper Velocity) point computing method
US9413981B2 (en) * 2012-10-19 2016-08-09 Cognex Corporation System and method for determination and adjustment of camera parameters using multi-gain images
TWI500904B (en) * 2014-09-18 2015-09-21 Vivotek Inc Stereo camera and automatic range finding method for measuring a distance between stereo camera and reference plane

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090206158A1 (en) * 2006-08-31 2009-08-20 Serge Thuries Auto-focusing method for an automatic data collection device, such as an image acquisition device
US20100147957A1 (en) * 2008-12-17 2010-06-17 Vladimir Gurevich Range finding in imaging reader for electro-optically reading indicia
US9185306B1 (en) * 2014-05-15 2015-11-10 Symbol Technologies, Llc Imaging module and reader for, and method of, illuminating and imaging targets to be read over an extended range of working distances

Also Published As

Publication number Publication date
GB202207975D0 (en) 2022-07-13
GB2565247B (en) 2022-02-09
GB201818127D0 (en) 2018-12-19
CN109154974B (en) 2022-05-24
CN114818757A (en) 2022-07-29
WO2017205065A1 (en) 2017-11-30
CN114818759A (en) 2022-07-29
DE112017002649T5 (en) 2019-03-07
GB2598873B (en) 2022-08-10
GB2598873A (en) 2022-03-16
GB202207933D0 (en) 2022-07-13
CN109154974A (en) 2019-01-04
GB202207955D0 (en) 2022-07-13

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