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FR3076425B1 - POLARIZED UNDERWATER IMAGING SYSTEM TO IMPROVE VISIBILITY AND OBJECT DETECTION IN TURBID WATER - Google Patents

POLARIZED UNDERWATER IMAGING SYSTEM TO IMPROVE VISIBILITY AND OBJECT DETECTION IN TURBID WATER Download PDF

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Publication number
FR3076425B1
FR3076425B1 FR1763336A FR1763336A FR3076425B1 FR 3076425 B1 FR3076425 B1 FR 3076425B1 FR 1763336 A FR1763336 A FR 1763336A FR 1763336 A FR1763336 A FR 1763336A FR 3076425 B1 FR3076425 B1 FR 3076425B1
Authority
FR
France
Prior art keywords
image
imaging system
acquired
polarized
object detection
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.)
Active
Application number
FR1763336A
Other languages
French (fr)
Other versions
FR3076425A1 (en
Inventor
Ayman Alfalou
Khadidja Ouldamer
Jaouad Hajjami
Kilian Brisepierre
Thibaut Napoleonn
Gautier Dreyfus
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.)
Forssea Robotics
Yncrea Ouest
Original Assignee
Forssea Robotics
Yncrea Ouest
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
Application filed by Forssea Robotics, Yncrea Ouest filed Critical Forssea Robotics
Priority to FR1763336A priority Critical patent/FR3076425B1/en
Priority to PCT/EP2018/097070 priority patent/WO2019129841A1/en
Publication of FR3076425A1 publication Critical patent/FR3076425A1/en
Application granted granted Critical
Publication of FR3076425B1 publication Critical patent/FR3076425B1/en
Active 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
    • 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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/73—Deblurring; Sharpening
    • G06T5/75—Unsharp masking
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/08—Waterproof bodies or housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H04N7/185—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source from a mobile camera, e.g. for remote control

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Studio Devices (AREA)

Abstract

Le système d'imagerie sous-marine (10) comprend : - au moins un dispositif d'acquisition d'image (16), - un dispositif d'éclairage (18A, 18B) destiné à éclairer une zone située au moins partiellement dans un champ du dispositif d'acquisition d'image (16), - un dispositif de traitement d'image (13) configuré pour traiter une image acquise (30) par le dispositif d'acquisition d'image (16). Le dispositif de traitement d'image (13) est configuré pour : - calculer une moyenne d'intensité lumineuse d'une portion de pixels de l'image acquise (30) qui présentent une intensité lumineuse la plus importante (A), - appliquer à l'image acquise (30) un filtrage du type passe-bas gaussien (34) de façon à obtenir une image filtrée (38, 40), et - à produire une image traitée (42) à partir de l'image acquise (30), de la moyenne d'intensité lumineuse de la portion de pixels de l'image acquise (30) et de l'image filtrée (38, 40).The underwater imaging system (10) comprises: - at least one image acquisition device (16), - a lighting device (18A, 18B) intended to illuminate an area located at least partially in a field of the image acquisition device (16), - an image processing device (13) configured to process an image acquired (30) by the image acquisition device (16). The image processing device (13) is configured to: - calculate an average light intensity of a portion of pixels of the acquired image (30) which have the greatest light intensity (A), - apply to the acquired image (30) a filtering of the Gaussian low-pass type (34) so as to obtain a filtered image (38, 40), and - to produce a processed image (42) from the acquired image ( 30), the average light intensity of the pixel portion of the acquired image (30) and the filtered image (38, 40).

FR1763336A 2017-12-28 2017-12-28 POLARIZED UNDERWATER IMAGING SYSTEM TO IMPROVE VISIBILITY AND OBJECT DETECTION IN TURBID WATER Active FR3076425B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1763336A FR3076425B1 (en) 2017-12-28 2017-12-28 POLARIZED UNDERWATER IMAGING SYSTEM TO IMPROVE VISIBILITY AND OBJECT DETECTION IN TURBID WATER
PCT/EP2018/097070 WO2019129841A1 (en) 2017-12-28 2018-12-28 Polarised underwater imaging system for improving visibility and object detection in turbid water

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1763336A FR3076425B1 (en) 2017-12-28 2017-12-28 POLARIZED UNDERWATER IMAGING SYSTEM TO IMPROVE VISIBILITY AND OBJECT DETECTION IN TURBID WATER
FR1763336 2017-12-28

Publications (2)

Publication Number Publication Date
FR3076425A1 FR3076425A1 (en) 2019-07-05
FR3076425B1 true FR3076425B1 (en) 2020-01-31

Family

ID=62528505

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1763336A Active FR3076425B1 (en) 2017-12-28 2017-12-28 POLARIZED UNDERWATER IMAGING SYSTEM TO IMPROVE VISIBILITY AND OBJECT DETECTION IN TURBID WATER

Country Status (2)

Country Link
FR (1) FR3076425B1 (en)
WO (1) WO2019129841A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3113162B1 (en) * 2020-07-30 2022-07-29 Orphie Method and device for underwater imaging
CN116152095A (en) * 2023-01-20 2023-05-23 天津大学 Scattering Media Imaging Method Based on Frequency-Domain Processing and Polarization Correlation of Orthogonal Linear Polarization Images
CN116245758B (en) * 2023-02-22 2025-09-30 江苏科技大学 An underwater polarization imaging method for restoring targets with non-uniform polarization characteristics
CN120355631B (en) * 2025-06-23 2025-09-19 合肥综合性国家科学中心人工智能研究院(安徽省人工智能实验室) An underwater image restoration method based on polarization imaging and low-frequency filtering

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303511A (en) * 1995-07-19 1997-02-19 Univ Manchester Compensating for backscattered light
GB201407267D0 (en) * 2014-04-24 2014-06-11 Cathx Res Ltd Underwater surveys
US10222688B2 (en) * 2014-09-22 2019-03-05 Woods Hole Oceanographic Institution Continuous particle imaging and classification system

Also Published As

Publication number Publication date
FR3076425A1 (en) 2019-07-05
WO2019129841A1 (en) 2019-07-04

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