JP6945516B2 - シンボル読み取りのためのローカルトーンマッピング - Google Patents

シンボル読み取りのためのローカルトーンマッピング Download PDF

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JP6945516B2
JP6945516B2 JP2018229018A JP2018229018A JP6945516B2 JP 6945516 B2 JP6945516 B2 JP 6945516B2 JP 2018229018 A JP2018229018 A JP 2018229018A JP 2018229018 A JP2018229018 A JP 2018229018A JP 6945516 B2 JP6945516 B2 JP 6945516B2
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JP2019125356A (ja
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ガオ，チェン
バチェルダー，アイヴァン
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コグネックス・コーポレイション
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    • 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
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/146—Methods for optical code recognition the method including quality enhancement steps
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/90—Determination of colour characteristics
    • 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
    • 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
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
    • G06K7/1413—1D bar codes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
    • G06V10/225—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition based on a marking or identifier characterising the area
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
    • H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30204—Marker

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Image Processing (AREA)
JP2018229018A 2017-12-06 2018-12-06 シンボル読み取りのためのローカルトーンマッピング Active JP6945516B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762595522P 2017-12-06 2017-12-06
US62/595,522 2017-12-06

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JP6945516B2 true JP6945516B2 (ja) 2021-10-06

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JP2020208830A Active JP7245218B2 (ja) 2017-12-06 2020-12-16 シンボル読み取りのためのローカルトーンマッピング

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US (2) US10607047B2 (enExample)
EP (2) EP3968211B1 (enExample)
JP (2) JP6945516B2 (enExample)
CN (1) CN110060309B (enExample)

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CN113313749A (zh) * 2020-02-27 2021-08-27 特里弗股份有限公司 多维数字环境中多维对象的可见度度量
CN111563851B (zh) * 2020-03-27 2023-04-11 中国科学院西安光学精密机械研究所 一种基于动态高斯参数的图像映射方法
CN111397576B (zh) * 2020-04-21 2025-08-08 中冶赛迪工程技术股份有限公司 用于工业设备识别定位的标志块、方法及系统
CN112817973B (zh) * 2021-01-22 2024-08-23 北京贝图灵科技发展有限公司 数据处理方法、装置、数据处理设备及存储介质
CN113393391B (zh) * 2021-06-10 2022-05-20 维沃移动通信（杭州）有限公司 图像增强方法、图像增强装置、电子设备和存储介质
US11582431B1 (en) * 2021-08-30 2023-02-14 Nvidia Corporation Image signal processing pipelines for high dynamic range sensors
US11961206B2 (en) * 2021-09-09 2024-04-16 Samsung Electronics Co., Ltd. Image generation using non-linear scaling and tone-mapping based on cubic spline curves
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US11587213B1 (en) * 2021-11-05 2023-02-21 GM Cruise Holdings LLC. Preserving dynamic range in images
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JP2021061018A (ja) 2021-04-15
US11138397B2 (en) 2021-10-05
CN110060309B (zh) 2023-07-11
CN110060309A (zh) 2019-07-26
EP3968211A1 (en) 2022-03-16
JP2019125356A (ja) 2019-07-25
US10607047B2 (en) 2020-03-31
EP3495987A1 (en) 2019-06-12
US20200293731A1 (en) 2020-09-17
JP7245218B2 (ja) 2023-03-23
EP3968211B1 (en) 2023-07-12
US20190171853A1 (en) 2019-06-06
EP3495987B1 (en) 2021-08-11

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