WO2021133082A1 - Système de caméra en trois dimensions - Google Patents

Système de caméra en trois dimensions Download PDF

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Publication number
WO2021133082A1
WO2021133082A1 PCT/KR2020/019060 KR2020019060W WO2021133082A1 WO 2021133082 A1 WO2021133082 A1 WO 2021133082A1 KR 2020019060 W KR2020019060 W KR 2020019060W WO 2021133082 A1 WO2021133082 A1 WO 2021133082A1
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WO
WIPO (PCT)
Prior art keywords
unit
camera
center
photographed
cells
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Application number
PCT/KR2020/019060
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English (en)
Korean (ko)
Inventor
박배억
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박배억
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Publication date
Application filed by 박배억 filed Critical 박배억
Publication of WO2021133082A1 publication Critical patent/WO2021133082A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/257—Colour aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/243—Image signal generators using stereoscopic image cameras using three or more 2D image sensors
    • 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
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

Definitions

  • the present invention relates to a camera system, and more particularly, to a three-dimensional camera system capable of generating a high-quality image and generating an object to be photographed in three dimensions.
  • the depth sensor module of the current three-dimensional camera system has a planar shape, and the two-dimensional image camera uses a convex lens to obtain mutual information in a different way, so that the color information of the two-dimensional image is acquired in a three-dimensional space or It is difficult to apply to an object or to apply depth information obtained by a 3D camera system to a 2D image.
  • the optical camera module and the depth sensor module are integrated into the entire screen area of the display device, and the control unit displays a three-dimensional image through the optical camera module and the depth sensor module over the entire screen area of the display device. It can be obtained to perform face recognition or fingerprint recognition.
  • FIG. 7 is a view showing an optical camera module, a depth sensor module, and an image plane of FIG. 6 .
  • FIG. 10 is a view showing an image plane, a three-dimensional camera module, and a subject plane according to an embodiment of the present invention.
  • FIG. 1 is a diagram illustrating a camera system according to an embodiment of the present invention.
  • the camera system according to the present embodiment provides an optical camera module 100 in which a plurality of unit camera cells 110 are adjacently disposed and an image using information measured by the optical camera module 100 . and a control unit 120 that generates
  • the optical camera module 100 includes a plurality of unit camera cells 110 that are sequentially arranged adjacently.
  • Each unit camera cell 110 includes a lens 111 , a lens support 112 , and a light receiving unit 113 .
  • the lens 111 is supported by the lens support 112 and collects external incident light.
  • the light receiving unit 113 is an image sensor and may be, for example, a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS).
  • CCD Charge Coupled Device
  • CMOS Complementary Metal Oxide Semiconductor
  • the light receiving unit 113 receives the light condensed through the lens 111 and converts it into an electrical signal.
  • the plurality of unit camera cells 110 may be configured in an arrangement of N ⁇ M (N and M are natural numbers). In the embodiment with reference to FIG.
  • the controller 120 integrates the pixel values of each individual cell of the light receiving unit 113 of each unit camera cell 110 into one pixel value (eg, the average pixel value) on the image planes S1 and 200 . set to the value of the corresponding pixel of .
  • individual cells constituting the light receiving unit 113 of each unit camera cell 110 may correspond to each pixel constituting the image planes S1 and 200 . Accordingly, the controller 120 may set the pixel value of each cell of the light receiving unit 113 to the value of each corresponding pixel of the image planes S1 and 200 .
  • a beam emitting hole 513 through which the beam emitted from the light emitting unit 511 passes is formed.
  • the light receiving unit 113 is composed of a plurality of cells (K ⁇ K, where K is a natural number), for example, when composed of 9 cells, the center cell is used as a beam emitting port, and the remaining cells are used for color information generation and depth information. (ie, distance information), and the color information of the center cell can be virtually generated by inferring the color information of the remaining cells.
  • a point P on a spherical surface may be represented by a spherical coordinate system ( ⁇ , ⁇ , ⁇ ).
  • ⁇ is the distance from the origin to the point P, and ⁇ 0.
  • ⁇ is the angle from the positive Z axis to the point P, and 0 ⁇ .
  • ⁇ is the angle formed from the positive X axis to the point where the point P is projected on the XY plane, and 0 ⁇ 2 ⁇ .
  • Such a spherical coordinate system ( ⁇ , ⁇ , ⁇ ) may be converted into a rectangular coordinate system (x, y, z) as follows.
  • the origin shown in FIG. 8 corresponds to the center of curvature of the depth sensor module 500
  • the positive Z axis is an axis from the center of curvature of the depth sensor module 500 to the center of the depth sensor module 500. .
  • 9 is a view for explaining a method of calculating three-dimensional coordinates of points constituting an object to be photographed in the three-dimensional camera system according to an embodiment of the present invention.
  • 9 shows the depth sensor module 500 (S0) and the subject surface (S2).
  • the object plane S2 is a point T2 constituting the object to be photographed, that is, an object plane on which the object exists.
  • the beam emitted from the light emitting unit 511 of the depth sensor module 500 is reflected from the subject T2 and is directed toward the center of curvature O of the depth sensor module 500 and a specific point T0 of the depth sensor module 500 is incident on the light receiving unit 113 of the
  • the object to be photographed may be configured in three dimensions.
  • T0 (R0, ⁇ 0, ⁇ 0)
  • R1 is the distance from the center of curvature (Q2) to the point T1
  • ⁇ 1 is the angle from the positive Z axis to the point T1
  • ⁇ 1 is the angle from the positive X axis to the point where the point T1 is projected on the XY plane.
  • the values of (R1, ⁇ 1, ⁇ 1) can be obtained as follows.
  • the three-dimensional camera module (S0) is located at a point 180 degrees opposite to the direction of each pixel on the image plane (S1) with respect to the center of curvature (Q2) and spaced from the center of curvature (Q2) by the radius of the sphere (S0) where each unit cell of In this way, each unit cell of the 3D camera module S0 corresponds to each pixel of the image plane S1, so that a depth value can be applied to each pixel of the image plane S1.
  • This embodiment is preferable when the three-dimensional camera module S0 has an area covering the image plane S1.
  • a sphere-shaped 3D line scan camera system distortion according to an angle of view may occur when an object to be photographed is photographed. For example, when an object to be photographed directed by the 3D line scan camera system is close to a plane, it can be seen that the edge of the image is compressed compared to the center and recorded in unit pixels. In order to compensate for these shortcomings, it may be efficient to accurately analyze the state of an object to be photographed by photographing with a general-type three-dimensional line scan camera system.
  • FIG. 12 is a diagram illustrating a converging three-dimensional line scan camera system according to an embodiment of the present invention.
  • a converging three-dimensional line scan camera system 1204 is supported on a support 1203 .
  • the object 1201 is placed on the object support 1205 and while the object support 1205 is rotated, the object 1201 is photographed with the converging three-dimensional line scan camera system 1204, and the three-dimensional object of the object create
  • the center Q2 of the object 1201 is set as the center of curvature of the converging 3D line scan camera system 1204 .
  • FIG. 13 is a diagram illustrating a camera system according to another embodiment of the present invention.
  • the unit camera cell 110 and the unit depth cell 510 use the light receiving unit 113 jointly, in this embodiment with reference to FIG. 13 , the unit camera cell 110 and the unit The depth cell 510 may include light receiving units 113 - 1 and 113 - 2 respectively. That is, in the center of the light receiving unit 113-1 of the unit camera cell 110, a hole having a larger diameter than the beam emission port 513 is formed, and in the upper part of the unit camera cell support 512 exposed to the hole.
  • the light receiving unit 113 - 2 of the unit depth cell 510 is implemented.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un système de caméra en trois dimensions qui, selon un mode de réalisation, comprend: un module de caméra optique ayant une pluralité de cellules de caméra unitaires disposées de manière adjacente, chaque cellule de caméra unitaire comprenant une lentille pour concentrer une lumière incidente qui provient d'un sujet photographié, et une unité de réception de lumière pour recevoir la lumière incidente concentrée par la lentille, et convertir celle-ci en un signal électrique; un module de capteur de profondeur disposé à l'arrière du module de caméra optique, et ayant une pluralité de cellules de profondeur unitaires disposées de manière adjacente, chaque cellule de profondeur unitaire étant disposée d'avant en arrière avec chacune de la pluralité de cellules de caméra unitaires, et comprenant une unité d'émission de lumière pour émettre un faisceau, et une unité de réception de lumière pour recevoir le faisceau qui a été réfléchi par le sujet photographié; et une unité de commande pour générer des informations de couleur du sujet photographié à l'aide des signaux électriques émis par les unités de réception de lumière respectives de la pluralité de cellules de caméra unitaires, calculer des coordonnées tridimensionnelles du sujet photographié à l'aide des faisceaux réfléchis reçus par les unités de réception de lumière respectives de la pluralité de cellules de profondeur unitaires, et configurer en trois dimensions le sujet photographié à l'aide des informations de couleur et des coordonnées tridimensionnelles.
PCT/KR2020/019060 2019-12-26 2020-12-24 Système de caméra en trois dimensions WO2021133082A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0175648 2019-12-26
KR1020190175648A KR102184210B1 (ko) 2019-12-26 2019-12-26 3차원 카메라 시스템

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WO2021133082A1 true WO2021133082A1 (fr) 2021-07-01

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WO (1) WO2021133082A1 (fr)

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Publication number Priority date Publication date Assignee Title
KR102184210B1 (ko) * 2019-12-26 2020-11-27 박배억 3차원 카메라 시스템

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100026093A (ko) * 2008-08-29 2010-03-10 (주)이오시스템 광 스캐너
KR20120111092A (ko) * 2011-03-31 2012-10-10 삼성전자주식회사 촬상 장치
KR20140046335A (ko) * 2012-10-10 2014-04-18 삼성전자주식회사 결상 광학계 및 이를 포함하는 3차원 영상 획득 장치
KR20170071411A (ko) * 2015-12-15 2017-06-23 삼성전자주식회사 볼륨 최근접 거리 접근법을 이용한 3차원 모델 생성 방법 및 장치
US20180300891A1 (en) * 2015-10-15 2018-10-18 Hangzhou Hikvision Digital Technology Co., Ltd. Method for obtaining combined depth image, and depth camera
KR102184210B1 (ko) * 2019-12-26 2020-11-27 박배억 3차원 카메라 시스템

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100026093A (ko) * 2008-08-29 2010-03-10 (주)이오시스템 광 스캐너
KR20120111092A (ko) * 2011-03-31 2012-10-10 삼성전자주식회사 촬상 장치
KR20140046335A (ko) * 2012-10-10 2014-04-18 삼성전자주식회사 결상 광학계 및 이를 포함하는 3차원 영상 획득 장치
US20180300891A1 (en) * 2015-10-15 2018-10-18 Hangzhou Hikvision Digital Technology Co., Ltd. Method for obtaining combined depth image, and depth camera
KR20170071411A (ko) * 2015-12-15 2017-06-23 삼성전자주식회사 볼륨 최근접 거리 접근법을 이용한 3차원 모델 생성 방법 및 장치
KR102184210B1 (ko) * 2019-12-26 2020-11-27 박배억 3차원 카메라 시스템

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