WO2016072582A1 - Système d'acquisition d'image multispectrale sous-marine utilisant une source de lumière à longueurs d'onde multiples - Google Patents

Système d'acquisition d'image multispectrale sous-marine utilisant une source de lumière à longueurs d'onde multiples Download PDF

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Publication number
WO2016072582A1
WO2016072582A1 PCT/KR2015/006769 KR2015006769W WO2016072582A1 WO 2016072582 A1 WO2016072582 A1 WO 2016072582A1 KR 2015006769 W KR2015006769 W KR 2015006769W WO 2016072582 A1 WO2016072582 A1 WO 2016072582A1
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WO
WIPO (PCT)
Prior art keywords
image
light source
underwater
acquisition system
light
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Application number
PCT/KR2015/006769
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English (en)
Korean (ko)
Inventor
오상우
이문진
Original Assignee
한국해양과학기술원
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Publication of WO2016072582A1 publication Critical patent/WO2016072582A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
    • G01J3/36—Investigating two or more bands of a spectrum by separate detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors

Definitions

  • the present invention relates to an underwater multispectral image acquisition system, and more particularly, multispectral in deep sea using each light source having six spectra to acquire images of underwater objects in deep sea and to monitor the deep sea environment.
  • the present invention relates to an underwater multispectral image acquisition system using a multi-wavelength light source capable of acquiring an image.
  • the underwater lamps to monitor the deep sea environment such as installation of the undersea production system, exploration of the undersea resources, installation of the undersea cable, lifting of the sinking ship, mapping of the undersea terrain, repair of the underwater structure, observation of the underwater ecology You can take underwater images using artificial light.
  • LEDs light emitting diodes
  • Korean Patent Laid-Open Publication No. 10-2014-0085910 relates to a directional underwater LED lamp having a streamlined heat dissipation structure, which is capable of varying the irradiation angle illuminated according to the underwater environment and minimizing fluid resistance. Is starting.
  • the color of the underwater light may be limited.
  • white-colored lighting can be applied to capture color photographs, and blue-colored lighting can be used to monitor a wide range of areas.
  • every object in the deep sea environment has its own special spectral fingerprint. Therefore, multispectral information is essential for detailed monitoring and analysis of objects in deep sea environments.
  • white light and color cameras are used to acquire images of underwater objects in the deep sea.
  • RGB red
  • G green
  • B blue
  • a hyperspectral camera may be used to acquire multispectral information on an object, but there is a disadvantage in that the cost is increased when the system is composed of these devices.
  • the present invention has been made to solve the above-mentioned problems, and for recognizing underwater multispectral image, each color LED having each wavelength is used as a light source covering a broad spectrum, and each color
  • An object of the present invention is to provide an underwater multispectral image acquisition system using a multi-wavelength light source capable of acquiring an image using a monochrome charge coupled device (CCD) camera in order to evaluate the intensity of light.
  • CCD monochrome charge coupled device
  • an underwater multispectral image acquisition system using a multi-wavelength light source the illumination unit for irradiating light to an underwater object consisting of a plurality of light sources having a different spectrum (spectrum) and And an image capturing unit which photographs the underwater object irradiated by each light source of the lighting unit and outputs an image signal corresponding to each light source, and an image control unit which receives the image signal and generates a multispectral image having different spectra. Characterized in that the configuration.
  • the underwater multispectral image acquisition system using the multi-wavelength light source is characterized in that it comprises UV (ultra violet), blue, green, yellow, red and IR (infra-red).
  • the underwater multispectral image acquisition system using a multi-wavelength light source is characterized in that the light emitting diode (LED).
  • LED light emitting diode
  • the image control unit synchronizes the light emission time of the illumination unit and the imaging time of the image photographing unit.
  • the underwater multi-spectral image acquisition system using a multi-wavelength light source is characterized in that it comprises a monochromatic charge coupled device (CCD) camera.
  • CCD charge coupled device
  • the underwater multispectral image acquisition system of the present invention as a light source, it has six different spectra by illuminating an underwater object with six colors of LEDs having different wavelengths and capturing it with a monochromatic CCD camera.
  • a spectroscopic image can be generated, and through analysis and comparison of each image having a single spectrum, there is an effect of representing an unknown point in an image acquired by conventional illumination.
  • the underwater multi-spectral image acquisition system the color image reproduced by the combination of six kinds of light source and monochromatic CCD camera can improve the expressive power than the image generated by the combination of the conventional white light and color camera There is an advantage.
  • FIG. 1 is a configuration diagram schematically showing an underwater multispectral image acquisition system using a multi-wavelength light source according to an embodiment of the present invention.
  • 2 is a graph showing the intensity of light according to the wavelength.
  • FIG 3 is an exemplary view comparing an image photographed using an underwater multispectral image acquisition system according to the present invention with an image photographed using a conventional technique.
  • Embodiments according to the concept of the present invention may be variously modified and may have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a particular disclosed form, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.
  • FIG. 1 is a block diagram schematically illustrating an underwater multispectral image acquisition system using a multi-wavelength light source according to an embodiment of the present invention.
  • the underwater multispectral image acquisition system 1 using the multi-wavelength light source of the present invention may be configured to include an illumination unit 100, the image capturing unit 110 and the image control unit 120.
  • the lighting unit 100 may provide artificial light to monitor the deep sea environment or the underwater object 10 in the water, particularly in the deep sea where sunlight does not penetrate.
  • the lighting unit 100 may be formed of a plurality of light emitting diodes (LEDs) as a light source.
  • the illumination unit 100 may include a light source having six different spectra.
  • the lighting unit 100 may be a UV (ultra violet) LED 101, a blue LED 102, a green LED 103, a yellow LED 104, a red LED 105, and an IR-infrared LED. 106.
  • the graph indicated by the dotted line shows the intensity of light according to the wavelength of each color in a combination of conventional white light and color cameras (eg, blue 20, green 30, red 40).
  • the graph shown by the solid line shows the intensity according to the wavelength of UV 201, blue 202, green 203, yellow 104, red 105 and IR 206 of the multi-wavelength light source according to the present invention. Indicates.
  • the image capturing unit 110 captures the underwater object 10 by using light emitted from the respective light sources constituting the lighting unit 100, that is, LEDs 101 to 106, and outputs an image signal corresponding to each light source. Can be.
  • the image capturing unit 110 may include a monochromatic charge coupled device (CCD) camera to evaluate the intensity of the light emitted from each of the LEDs 101 to 106 to the underwater object 10. have.
  • CCD charge coupled device
  • the image controller 120 may receive a plurality of image signals output through the image capturing unit 110 and generate a multispectral image having different spectra. For example, the image controller 120 may generate a color image using six image signals having different spectra.
  • the image controller 120 may synchronize the light emission time of the light emitted from the illumination unit 100 with the photographing time of photographing the underwater object 10 through the image photographing unit 110.
  • FIG. 3A illustrates an image photographed by a combination of a conventional white light and a color camera
  • FIG. 3B illustrates an image photographed using an underwater multispectral image acquisition system according to the present invention.
  • the image captured by the underwater multispectral image acquisition system 1 of the present invention was able to reveal the features that do not appear in the conventional color photograph, in the case of the image of FIG. Compared with the image of 3 (a) it can be seen that the expressive power is better.
  • the present invention can generate a multispectral image having six different spectra by illuminating a water object through a six-color LED having a different wavelength as a light source and capturing it with a monochromatic CCD camera.
  • a multispectral image having six different spectra by illuminating a water object through a six-color LED having a different wavelength as a light source and capturing it with a monochromatic CCD camera.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

La présente invention concerne un système d'acquisition d'image multispectrale sous-marine utilisant une source de lumière à longueurs d'onde multiples, qui peut acquérir une image multispectrale à l'aide de chacune de sources de lumière ayant six spectres de façon à acquérir une image d'un objet sous-marin en eau profonde et surveiller l'environnement en eau profonde. La présente invention comprend : une unité d'éclairage qui comprend une pluralité de sources de lumière ayant différents spectres de façon à exposer un objet sous-marin à de la lumière ; une unité de photographie d'image pour photographier l'objet sous-marin exposé à chaque source de lumière de l'unité d'éclairage, et délivrer un signal d'image correspondant à chaque source de lumière ; et une unité de commande d'image pour recevoir le signal d'image et générer une image multispectrale ayant différents spectres.
PCT/KR2015/006769 2014-11-04 2015-07-01 Système d'acquisition d'image multispectrale sous-marine utilisant une source de lumière à longueurs d'onde multiples WO2016072582A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140151986A KR20160052137A (ko) 2014-11-04 2014-11-04 다파장 광원을 이용한 수중 다분광 영상 취득 시스템
KR10-2014-0151986 2014-11-04

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WO2016072582A1 true WO2016072582A1 (fr) 2016-05-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110514302A (zh) * 2019-08-20 2019-11-29 海南大学 基于小型水下机器设备的海洋光纤光谱仪检测方法
CN113405660A (zh) * 2021-06-07 2021-09-17 海南热带海洋学院 一种水下光谱成像设备下潜在轨光谱辐射定标装置及其定标方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102141531B1 (ko) * 2020-05-06 2020-08-05 대한민국 적조 탐지장치 및 탐지방법

Citations (5)

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JP2003333608A (ja) * 2002-05-08 2003-11-21 Makoto Dejima 肌撮影用面順次方式テレビカメラ装置
JP2007215088A (ja) * 2006-02-13 2007-08-23 Jai Corporation 面順次方式カラーカメラシステム
JP2008252357A (ja) * 2007-03-29 2008-10-16 Matsushita Electric Ind Co Ltd 暗視撮像装置及びヘッドライトモジュール
KR20110088676A (ko) * 2010-01-29 2011-08-04 한국전기연구원 생체로부터 발생하는 다중 분광 광 영상 검출 및 광치료를 위한 복합 장치
JP2012222825A (ja) * 2011-04-13 2012-11-12 Axis Ab 照明装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003333608A (ja) * 2002-05-08 2003-11-21 Makoto Dejima 肌撮影用面順次方式テレビカメラ装置
JP2007215088A (ja) * 2006-02-13 2007-08-23 Jai Corporation 面順次方式カラーカメラシステム
JP2008252357A (ja) * 2007-03-29 2008-10-16 Matsushita Electric Ind Co Ltd 暗視撮像装置及びヘッドライトモジュール
KR20110088676A (ko) * 2010-01-29 2011-08-04 한국전기연구원 생체로부터 발생하는 다중 분광 광 영상 검출 및 광치료를 위한 복합 장치
JP2012222825A (ja) * 2011-04-13 2012-11-12 Axis Ab 照明装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110514302A (zh) * 2019-08-20 2019-11-29 海南大学 基于小型水下机器设备的海洋光纤光谱仪检测方法
CN113405660A (zh) * 2021-06-07 2021-09-17 海南热带海洋学院 一种水下光谱成像设备下潜在轨光谱辐射定标装置及其定标方法
CN113405660B (zh) * 2021-06-07 2022-10-11 海南热带海洋学院 一种水下光谱成像设备下潜在轨光谱辐射定标装置及其定标方法

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