WO2020204016A1 - Drive recorder installation method, drive recorder, and automobile - Google Patents

Drive recorder installation method, drive recorder, and automobile Download PDF

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Publication number
WO2020204016A1
WO2020204016A1 PCT/JP2020/014720 JP2020014720W WO2020204016A1 WO 2020204016 A1 WO2020204016 A1 WO 2020204016A1 JP 2020014720 W JP2020014720 W JP 2020014720W WO 2020204016 A1 WO2020204016 A1 WO 2020204016A1
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camera
drive recorder
image
vehicle
image processing
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PCT/JP2020/014720
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French (fr)
Japanese (ja)
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吉雄 中野
暢 長岡
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５Ｋサポート株式会社
有限会社フィット
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Publication of WO2020204016A1 publication Critical patent/WO2020204016A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles

Definitions

  • the present invention relates to a drive recorder installation method, a drive recorder, and an automobile.
  • An increasing number of vehicles are equipped with drive recorders that record images outside the vehicle.
  • a camera is installed toward the front of the vehicle to record an image.
  • the cause of the accident is identified by looking at the recorded situation of the car or person.
  • the camera In conventional drive recorders, the camera is often installed near the rear-view mirror (room mirror) with the camera facing forward.
  • the angle of view of the camera is generally about 120 ° in the vertical and horizontal directions, and objects outside the angle of view are not photographed. Therefore, the situation of the object and the situation of the driver from the left and right sides are not photographed.
  • accidents are often related to the entry of cars and people from these directions, the status of traffic lights and signs, and the driver's actions at that time.
  • An object of the present invention is to provide a drive recorder installation method, a drive recorder, and an automobile that can clearly photograph the front, side parts, and vehicle occupants of a vehicle.
  • the method of installing the drive recorder of the present invention includes a camera having a fisheye lens of a stereoscopic projection method having an angle of view of 220 ° to 250 °, and an image processing device that performs image processing on the image captured by the camera and stores it in a storage unit.
  • This is a method of installing a drive recorder equipped with the above in an automobile, in which the camera is installed with the fisheye lens facing downward on a straight line connecting the driver's seat and a side mirror on the opposite side of the driver's seat.
  • the camera is installed on the upper part of the windshield or the front part of the ceiling of the automobile.
  • the drive recorder has a plurality of cameras, and the cameras are installed on at least one of the left and right side mirrors of the vehicle.
  • the camera has a plurality of fisheye lenses, and the fisheye lenses are installed on the straight line and at least two of the side mirrors on the left and right sides of the vehicle.
  • the drive recorder of the present invention has a three-dimensional projection type fisheye lens having an angle of view of 220 ° to 250 °, and performs image processing on a camera installed in an automobile with the fisheye lens facing downward and an image taken by the camera.
  • the image processing device includes an image processing device that stores the image in the storage unit, and the image processing device expands the image taken by the camera in a plane, and vertically and vertically a portion that captures the front side of the vehicle and a portion that captures the rear side of the vehicle.
  • An image for reproduction is generated by arranging the image in.
  • the camera has a plurality of fisheye lenses and an image sensor that receives light from the plurality of fisheye lenses and converts it into an electric signal.
  • the drive recorder of the present invention is installed, the image taken by the camera is analyzed, and the vehicle speed is controlled based on the analysis result.
  • the front, side parts and vehicle occupants of the vehicle can be clearly photographed.
  • the drive recorder includes a camera 1 and an image processing device 2, and an external memory 3 and a monitor 4 can be connected to the drive recorder.
  • the external memory 3 is a non-volatile memory such as a flash memory or a hard disk.
  • the monitor 4 is a display device such as a liquid crystal display.
  • the camera 1 has a fisheye lens 1A and an image sensor such as a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor), and is mounted on a vehicle to photograph the surrounding environment of the vehicle and generate an image.
  • the camera 1 continuously shoots, for example, every 1/60 second frame (60 fps) to generate an image.
  • the camera 1 outputs the captured image to the image processing device 2.
  • a stereographic fisheye lens having an angle of view of 220 ° to 250 ° can be used.
  • the peripheral image is magnified about 4 times compared to the central image.
  • the stereographic projection method resembles human vision. Further, while the other projection method deforms the image toward the periphery, the stereographic projection method does not deform the image, and is therefore suitable as a lens for the camera 1 of the drive recorder.
  • the image processing device 2 has a control unit 20 and an image memory 26.
  • the control unit 20 includes a CPU (central processing unit), a ROM in which programs and the like are stored, a RAM as a work area, and the like.
  • the CPU executes the program, the functions of the image acquisition unit 21, the image compression unit 22, the image generation unit 23, and the data transfer unit 24 are realized.
  • the image acquisition unit 21 acquires a captured image from the camera 1.
  • the acquired captured image data is written in the image memory 26.
  • the captured image data can be repeatedly overwritten and written to the image memory 26 at high speed.
  • the image compression unit 22 compresses the captured image data in a predetermined compression format, for example, a JPEG (Joint Photographic Experts Group) method, and generates compressed image data.
  • the compressed image data is transferred to and stored in the external memory 3 by the data transfer unit 24.
  • the image generation unit 23 reads captured image data from the image memory 26 (or external memory 3) and generates an image for reproduction by image conversion processing. For example, the image generation unit 23 unfolds the fisheye lens image (omnidirectional image) taken by the camera 1 in a plane, arranges and combines the image on the front side of the camera 1 at the top and the image on the rear side at the bottom. Generate an image for playback (see FIG. 3).
  • the data transfer unit 24 transfers the image data for reproduction to the monitor 4.
  • the monitor 4 displays an image for reproduction.
  • FIG. 2 shows an example of installing this drive recorder in the vehicle C of an automobile.
  • the side mirrors M1 and M2 are located in front of the windshield W (windshield).
  • vehicle C is a truck, a bus, or the like without a bonnet.
  • the camera 1 is installed on the upper part of the windshield W or the front part of the vehicle on the ceiling of the vehicle so that the fisheye lens 1A faces downward. This makes it possible to photograph the front, left and right of the vehicle, the driver's seat, the passenger's seat, and the like. In addition, a portion higher than the installation height of the camera 1, for example, a traffic light or a sign can be photographed.
  • the image processing device 2, the external memory 3, and the monitor 4 can be installed at any place.
  • the camera 1 is arranged on a straight line L connecting the driver D (driver's seat) and the side mirror M1 on the opposite side of the driver's seat.
  • the camera 1 is arranged on a straight line connecting the left side mirror and the driver's seat.
  • the term "on a straight line” means on a straight line connecting the side mirror and the driver's seat when the vehicle C is viewed in a plan view.
  • the camera 1 can take a picture of the part that the driver sees with the side mirror, that is, the side mirror that reflects the side part of the vehicle C.
  • the side mirror that reflects the side part of the vehicle C.
  • Figure 3 shows an example of a playback image.
  • the side mirror reflects the side portion of the vehicle.
  • the driver can easily confirm the state of the side portion of the vehicle.
  • the magnification of a necessary part such as a side mirror part may be increased so that it can be displayed on the monitor 4.
  • cameras 11 and 12 having the same configuration as the camera 1 may be installed on the left and right side mirrors M1 and M2 so that the fisheye lens faces downward.
  • the captured images of the cameras 11 and 12 are output to the image processing device 2 and stored in the external memory 3 in the same manner as the camera 1.
  • the image sensor may be shared by the cameras 1, 11 and 12. That is, the light coming from the three fisheye lenses installed at the center of the vehicle C in the vehicle width direction and at both ends in the vehicle width direction is guided to the same image sensor to receive light, converted into an electric signal, and the image is displayed. It may be generated. As a result, the images taken at the three locations can be treated as completely synchronized images, resulting in an image with higher evidence ability.
  • the fisheye lens may be installed at any two locations instead of the three locations at the center of the vehicle C in the vehicle width direction and at both ends in the vehicle width direction.
  • cameras 13 and 14 having the same configuration as the camera 1 may be further installed behind the left and right sides of the vehicle C.
  • the cameras 13 and 14 are installed at the rear tire positions. As a result, the cause of the accident can be verified more clearly.
  • a camera 15 having the same configuration as the camera 1 may be further installed behind the vehicle C.
  • an around viewer can be created, and any part can be panned, tilted, zoomed and monitored.
  • pan / tilt / zoom it is possible to monitor not only when driving but also when backing up or pulling width, which is useful for driving support.
  • the pan / tilt / zoom functions may be provided mechanically or the field of view may be moved by software.
  • the vehicle may be decelerated or stopped by analyzing the images taken by one or more cameras and controlling the vehicle speed by automatic braking when there is a person or a foreign object. As a result, an accident can be prevented.
  • the present invention is not limited to the above embodiment as it is, and at the implementation stage, the components can be modified and embodied within a range that does not deviate from the gist thereof.
  • various inventions can be formed by an appropriate combination of the plurality of constituent elements disclosed in the above-described embodiment. For example, some components may be removed from all the components shown in the embodiments. In addition, components across different embodiments may be combined as appropriate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The present invention clearly photographs the front and the sides of a vehicle and a vehicle occupant. A drive recorder installation method according to an embodiment of the present invention is for installing, to an automobile, a drive recorder provided with: a camera which has a fish-eye lens of a three-dimensional projection type having a field angle of 220°-250°; and an image processing device which performs image processing on an image photographed by the camera and stores the image in a storage unit. The camera is installed on a straight line connecting a driver's seat and a side mirror on the opposite side of the driver's seat such that the fish-eye lens is facing downward.

Description

ドライブレコーダの設置方法、ドライブレコーダ及び自動車How to install a drive recorder, drive recorder and car
 　本発明は、ドライブレコーダの設置方法、ドライブレコーダ及び自動車に関する。 The present invention relates to a drive recorder installation method, a drive recorder, and an automobile.
 　車両外部の映像を記録するドライブレコーダを搭載する車両が増えている。例えば、車両の前方に向けてカメラを設置し、画像を録画する。事故やトラブルが起きた際、録画された車や人などの状況を見て、事故原因などが特定される。 An increasing number of vehicles are equipped with drive recorders that record images outside the vehicle. For example, a camera is installed toward the front of the vehicle to record an image. When an accident or trouble occurs, the cause of the accident is identified by looking at the recorded situation of the car or person.
 　従来のドライブレコーダは、バックミラー（ルームミラー）の付近にカメラを前方向に向けて設置することが多い。カメラの画角は上下左右に１２０°程度が一般的であり、画角の外の物体は撮影されない。このため、左右側からの物体の状況や運転手の状況は撮影されない。しかし、事故は、これらの方向からの車や人の進入、信号・標識の状況、その時の運転手の動作などが関係する場合が多々ある。 In conventional drive recorders, the camera is often installed near the rear-view mirror (room mirror) with the camera facing forward. The angle of view of the camera is generally about 120 ° in the vertical and horizontal directions, and objects outside the angle of view are not photographed. Therefore, the situation of the object and the situation of the driver from the left and right sides are not photographed. However, accidents are often related to the entry of cars and people from these directions, the status of traffic lights and signs, and the driver's actions at that time.
 　バックミラーの位置に、画角１８０°～２２０°程度の魚眼カメラを下向きに設置して、前方、左右及び運転手を同一画像に収めるドライブレコーダもあるが、運転手を撮影しようとすると、前方の高い位置にある信号機や標識が写らなかった。また、一般的な正射影や等距離射影の魚眼レンズのカメラでは、カメラ下方のダッシュボードは鮮明に記録されるが、本来撮影したい左右方向や前後方向を明瞭に記録できなかった。 There is also a drive recorder that installs a fisheye camera with an angle of view of about 180 ° to 220 ° downward at the position of the rearview mirror to capture the same image of the driver in front, left and right, but when trying to shoot the driver, I couldn't see the high traffic lights and signs in front of me. In addition, with a general fisheye lens camera for normal projection or equidistant projection, the dashboard below the camera is clearly recorded, but the left-right direction and front-back direction that are originally desired to be photographed cannot be clearly recorded.
特開２０００－２１１５５７号公報Japanese Unexamined Patent Publication No. 2000-21157 特開２００１－０４５４３８号公報Japanese Unexamined Patent Publication No. 2001-045438
 　本発明は、車両の前方、側部及び車両乗員を明瞭に撮影できるドライブレコーダの設置方法、ドライブレコーダ及び自動車を提供することを目的とする。 An object of the present invention is to provide a drive recorder installation method, a drive recorder, and an automobile that can clearly photograph the front, side parts, and vehicle occupants of a vehicle.
 　本発明のドライブレコーダの設置方法は、画角２２０°～２５０°の立体射影方式の魚眼レンズを有するカメラと、該カメラで撮影した画像に対し画像処理を施して記憶部に格納する画像処理装置とを備えるドライブレコーダを自動車に設置する方法であって、運転席と、運転席とは反対側のサイドミラーとを結ぶ直線上に、前記魚眼レンズを下向きにして前記カメラを設置するものである。 The method of installing the drive recorder of the present invention includes a camera having a fisheye lens of a stereoscopic projection method having an angle of view of 220 ° to 250 °, and an image processing device that performs image processing on the image captured by the camera and stores it in a storage unit. This is a method of installing a drive recorder equipped with the above in an automobile, in which the camera is installed with the fisheye lens facing downward on a straight line connecting the driver's seat and a side mirror on the opposite side of the driver's seat.
 　本発明の一態様では、前記カメラを、前記自動車のフロントガラス上部又は天井の前方部に設置する。 In one aspect of the present invention, the camera is installed on the upper part of the windshield or the front part of the ceiling of the automobile.
 　本発明の一態様では、前記ドライブレコーダは複数のカメラを有しており、車両左右のサイドミラーの少なくとも一方にカメラを設置する。 In one aspect of the present invention, the drive recorder has a plurality of cameras, and the cameras are installed on at least one of the left and right side mirrors of the vehicle.
 　本発明の一態様では、前記カメラは複数の魚眼レンズを有しており、前記直線上と、車両左右のサイドミラーのうち、少なくとも２ヶ所に魚眼レンズを設置する。 In one aspect of the present invention, the camera has a plurality of fisheye lenses, and the fisheye lenses are installed on the straight line and at least two of the side mirrors on the left and right sides of the vehicle.
 　本発明のドライブレコーダは、画角２２０°～２５０°の立体射影方式の魚眼レンズを有し、該魚眼レンズを下向きにして自動車に設置されるカメラと、前記カメラで撮影した画像に対し画像処理を施して記憶部に格納する画像処理装置と、を備え、前記画像処理装置は、前記カメラで撮影した画像を平面展開し、車両前方側を写した部分と、車両後方側を写した部分とを上下に配置して再生用画像を生成するものである。 The drive recorder of the present invention has a three-dimensional projection type fisheye lens having an angle of view of 220 ° to 250 °, and performs image processing on a camera installed in an automobile with the fisheye lens facing downward and an image taken by the camera. The image processing device includes an image processing device that stores the image in the storage unit, and the image processing device expands the image taken by the camera in a plane, and vertically and vertically a portion that captures the front side of the vehicle and a portion that captures the rear side of the vehicle. An image for reproduction is generated by arranging the image in.
 　本発明の一態様では、前記カメラは、複数の魚眼レンズと、前記複数の魚眼レンズからの光を受光して電気信号に変換する撮像素子とを有する。 In one aspect of the present invention, the camera has a plurality of fisheye lenses and an image sensor that receives light from the plurality of fisheye lenses and converts it into an electric signal.
 　本発明の自動車は、本発明のドライブレコーダが設置され、前記カメラの撮影画像を解析し、解析結果に基づいて車両速度を制御するものである。 In the automobile of the present invention, the drive recorder of the present invention is installed, the image taken by the camera is analyzed, and the vehicle speed is controlled based on the analysis result.
 　本発明によれば、車両の前方、側部及び車両乗員を明瞭に撮影できる。 According to the present invention, the front, side parts and vehicle occupants of the vehicle can be clearly photographed.
実施の形態に係るドライブレコーダの概略構成図である。It is a schematic block diagram of the drive recorder which concerns on embodiment. ドライブレコーダを設置した車両の概略図である。It is the schematic of the vehicle which installed the drive recorder. 再生画像の例を示す図である。It is a figure which shows the example of the reproduced image. ドライブレコーダを設置した車両の概略図である。It is the schematic of the vehicle which installed the drive recorder. ドライブレコーダを設置した車両の概略図である。It is the schematic of the vehicle which installed the drive recorder. ドライブレコーダを設置した車両の概略図である。It is the schematic of the vehicle which installed the drive recorder.
 　以下、図面を参照して実施の形態について説明する。 Hereinafter, embodiments will be described with reference to the drawings.
 　図１に示すように、本発明の実施形態に係るドライブレコーダは、カメラ１及び画像処理装置２を備え、外部メモリ３やモニタ４が接続可能になっている。外部メモリ３は、フラッシュメモリやハードディスク等の不揮発性メモリである。モニタ４は例えば液晶ディスプレイ等の表示装置である。 As shown in FIG. 1, the drive recorder according to the embodiment of the present invention includes a camera 1 and an image processing device 2, and an external memory 3 and a monitor 4 can be connected to the drive recorder. The external memory 3 is a non-volatile memory such as a flash memory or a hard disk. The monitor 4 is a display device such as a liquid crystal display.
 　カメラ１は、魚眼レンズ１Ａと、ＣＣＤ（Charge-Coupled　Device）やＣＭＯＳ（Complementary　Metal-Oxide　Semiconductor）等の撮像素子とを有し、車両に搭載され、車両周辺環境を撮影し、画像を生成する。カメラ１は、例えば１／６０秒のフレーム毎（６０ｆｐｓ）に連続して撮影し、画像を生成する。カメラ１は、撮影画像を画像処理装置２へ出力する。 The camera 1 has a fisheye lens 1A and an image sensor such as a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor), and is mounted on a vehicle to photograph the surrounding environment of the vehicle and generate an image. The camera 1 continuously shoots, for example, every 1/60 second frame (60 fps) to generate an image. The camera 1 outputs the captured image to the image processing device 2.
 　魚眼レンズ１Ａは、画角２２０°～２５０°の立体射影方式の魚眼レンズを用いることができる。立体射影は中心の像と比較して周辺の像が約４倍に拡大される。立体射影方式は、人間の視覚に似ている。また、他の射影方式は周辺に行くに従い像が変形するのに対し、立体射影方式は像が変形しないため、ドライブレコーダのカメラ１のレンズとして好適である。 As the fisheye lens 1A, a stereographic fisheye lens having an angle of view of 220 ° to 250 ° can be used. In stereographic projection, the peripheral image is magnified about 4 times compared to the central image. The stereographic projection method resembles human vision. Further, while the other projection method deforms the image toward the periphery, the stereographic projection method does not deform the image, and is therefore suitable as a lens for the camera 1 of the drive recorder.
 　画像処理装置２は、制御部２０及び画像メモリ２６を有する。制御部２０は、ＣＰＵ（中央処理装置）、プログラム等が格納されたＲＯＭ、ワークエリアとしてのＲＡＭ等を含む。ＣＰＵがプログラムを実行することで、画像取得部２１、画像圧縮部２２、画像生成部２３、及びデータ転送部２４の機能が実現される。 The image processing device 2 has a control unit 20 and an image memory 26. The control unit 20 includes a CPU (central processing unit), a ROM in which programs and the like are stored, a RAM as a work area, and the like. When the CPU executes the program, the functions of the image acquisition unit 21, the image compression unit 22, the image generation unit 23, and the data transfer unit 24 are realized.
 　画像取得部２１は、カメラ１から撮影画像を取得する。取得した撮影画像データは、画像メモリ２６に書き込まれる。画像メモリ２６には、撮影画像データを、繰り返し上書きして高速で書き込むことができる。 The image acquisition unit 21 acquires a captured image from the camera 1. The acquired captured image data is written in the image memory 26. The captured image data can be repeatedly overwritten and written to the image memory 26 at high speed.
 　画像圧縮部２２は、撮影画像データを所定の圧縮形式、例えばＪＰＥＧ（Joint　Photographic　Experts　Group）方式で圧縮し、圧縮画像データを生成する。圧縮画像データは、データ転送部２４により外部メモリ３へ転送され、記憶される。 The image compression unit 22 compresses the captured image data in a predetermined compression format, for example, a JPEG (Joint Photographic Experts Group) method, and generates compressed image data. The compressed image data is transferred to and stored in the external memory 3 by the data transfer unit 24.
 　画像生成部２３は、画像メモリ２６（又は外部メモリ３）から撮影画像データを読み出し、画像変換処理によって、再生用の画像を生成する。例えば、画像生成部２３は、カメラ１が撮影した魚眼レンズ画像（全天球画像）を平面展開し、カメラ１よりも前方側の画像を上部、後方側の画像を下部に配置・合成して、再生用画像を生成する（図３参照）。データ転送部２４は、再生用画像データをモニタ４へ転送する。モニタ４は、再生用画像を表示する。 The image generation unit 23 reads captured image data from the image memory 26 (or external memory 3) and generates an image for reproduction by image conversion processing. For example, the image generation unit 23 unfolds the fisheye lens image (omnidirectional image) taken by the camera 1 in a plane, arranges and combines the image on the front side of the camera 1 at the top and the image on the rear side at the bottom. Generate an image for playback (see FIG. 3). The data transfer unit 24 transfers the image data for reproduction to the monitor 4. The monitor 4 displays an image for reproduction.
 　図２に、このドライブレコーダを自動車の車両Ｃに設置する例を示す。図２に示す車両Ｃは、サイドミラーＭ１，Ｍ２が、フロントガラスＷ（ウェインドシールド）よりも前方に位置する。例えば、車両Ｃは、ボンネットのないトラックやバス等である。 FIG. 2 shows an example of installing this drive recorder in the vehicle C of an automobile. In the vehicle C shown in FIG. 2, the side mirrors M1 and M2 are located in front of the windshield W (windshield). For example, vehicle C is a truck, a bus, or the like without a bonnet.
 　カメラ１は、フロントガラスＷの上部、又は車両天井部の車両前方部に、魚眼レンズ１Ａが下向きとなるように設置される。これにより、車両の前方、左右、及び運転席や助手席等を撮影することができる。また、カメラ１の設置高さよりも高い部分、例えば信号機や標識も撮影することができる。画像処理装置２、外部メモリ３、モニタ４は任意の場所に設置できる。 The camera 1 is installed on the upper part of the windshield W or the front part of the vehicle on the ceiling of the vehicle so that the fisheye lens 1A faces downward. This makes it possible to photograph the front, left and right of the vehicle, the driver's seat, the passenger's seat, and the like. In addition, a portion higher than the installation height of the camera 1, for example, a traffic light or a sign can be photographed. The image processing device 2, the external memory 3, and the monitor 4 can be installed at any place.
 　また、カメラ１は、ドライバーＤ（運転席）と、運転席とは反対側のサイドミラーＭ１とを結ぶ直線Ｌ上に配置することが好ましい。例えば、運転席が右側にある車両の場合、左側のサイドミラーと運転席とを結ぶ直線上にカメラ１を配置する。ここで、直線上とは、車両Ｃを平面視した場合に、サイドミラーと運転席とを結ぶ直線の上を意味する。 Further, it is preferable that the camera 1 is arranged on a straight line L connecting the driver D (driver's seat) and the side mirror M1 on the opposite side of the driver's seat. For example, in the case of a vehicle in which the driver's seat is on the right side, the camera 1 is arranged on a straight line connecting the left side mirror and the driver's seat. Here, the term "on a straight line" means on a straight line connecting the side mirror and the driver's seat when the vehicle C is viewed in a plan view.
 　このような場所にカメラ１を配置することで、カメラ１は、運転手がサイドミラーで見る部分、すなわち車両Ｃの側部を映し出すサイドミラーを撮影することができる。これにより、カメラ１の撮影画像に、車両の前方や車両乗員だけでなく、車両側部の様子も収めることができる。 By arranging the camera 1 in such a place, the camera 1 can take a picture of the part that the driver sees with the side mirror, that is, the side mirror that reflects the side part of the vehicle C. As a result, not only the front of the vehicle and the vehicle occupants but also the side of the vehicle can be captured in the captured image of the camera 1.
 　図３に再生用画像の例を示す。図３に示すように、サイドミラーには車両側部が映る。このような再生用画像をモニタ４に表示することで、運転手は車両側部の様子を容易に確認できる。サイドミラー部分など、必要な部分の倍率を上げてモニタ４に表示できるようにしてもよい。 Figure 3 shows an example of a playback image. As shown in FIG. 3, the side mirror reflects the side portion of the vehicle. By displaying such a reproduction image on the monitor 4, the driver can easily confirm the state of the side portion of the vehicle. The magnification of a necessary part such as a side mirror part may be increased so that it can be displayed on the monitor 4.
 　図４に示すように、左右のサイドミラーＭ１，Ｍ２に、カメラ１と同様の構成のカメラ１１，１２を魚眼レンズが下向きとなるように設置してもよい。カメラ１１，１２の撮影画像は、カメラ１と同様に画像処理装置２へ出力され、外部メモリ３に格納される。カメラ１１，１２を設置することで、車両の左右両側の側部を録画することができる。 As shown in FIG. 4, cameras 11 and 12 having the same configuration as the camera 1 may be installed on the left and right side mirrors M1 and M2 so that the fisheye lens faces downward. The captured images of the cameras 11 and 12 are output to the image processing device 2 and stored in the external memory 3 in the same manner as the camera 1. By installing the cameras 11 and 12, it is possible to record the left and right sides of the vehicle.
 　車両Ｃの車幅方向中央に配置したカメラ１と、車幅方向両端部に設置したカメラ１１，１２とは撮影画像の一部が重なるため、これらの撮影画像を１つの画像として取り扱うことができ、事故原因特定の際には証拠能力の高い画像となる。 Since a part of the captured images overlaps between the camera 1 arranged at the center of the vehicle C in the vehicle width direction and the cameras 11 and 12 installed at both ends in the vehicle width direction, these captured images can be treated as one image. , When identifying the cause of the accident, the image will have high evidence capacity.
 　カメラ１，１１，１２で撮像素子（画像センサ）を共通化してもよい。すなわち、車両Ｃの車幅方向中央と車幅方向両端部の３箇所に設置した３個の魚眼レンズから入ってきた光を、同一の撮像素子へ導いて受光し、電気信号に変換して画像を生成してもよい。これにより、３箇所で撮影した画像を完全に同期した画像として取り扱うことができ、より証拠能力の高い画像となる。魚眼レンズの設置箇所は、車両Ｃの車幅方向中央と車幅方向両端部の３箇所でなく、いずれか２箇所であってもよい。 The image sensor (image sensor) may be shared by the cameras 1, 11 and 12. That is, the light coming from the three fisheye lenses installed at the center of the vehicle C in the vehicle width direction and at both ends in the vehicle width direction is guided to the same image sensor to receive light, converted into an electric signal, and the image is displayed. It may be generated. As a result, the images taken at the three locations can be treated as completely synchronized images, resulting in an image with higher evidence ability. The fisheye lens may be installed at any two locations instead of the three locations at the center of the vehicle C in the vehicle width direction and at both ends in the vehicle width direction.
 　図５に示すように、車両Ｃの左右後方に、カメラ１と同様の構成のカメラ１３，１４をさらに設置してもよい。例えば、カメラ１３，１４を後部タイヤ位置に設置する。これにより、事故原因をより明確に検証できる。 As shown in FIG. 5, cameras 13 and 14 having the same configuration as the camera 1 may be further installed behind the left and right sides of the vehicle C. For example, the cameras 13 and 14 are installed at the rear tire positions. As a result, the cause of the accident can be verified more clearly.
 　図６に示すように、車両Ｃの後方に、カメラ１と同様の構成のカメラ１５をさらに設置してもよい。それにより、アラウンドビュアができ、任意の箇所をパン・チルト・ズームしてモニタリングすることができる。パン・チルト・ズームにより、走行時のみならずバックや幅寄せ時にモニタリングすることができ運転支援にも役立つ。なお、パン・チルト・ズーム機能は機械的に付与しても、ソフトウェアで視野範囲を動かすようにしても良い。 As shown in FIG. 6, a camera 15 having the same configuration as the camera 1 may be further installed behind the vehicle C. As a result, an around viewer can be created, and any part can be panned, tilted, zoomed and monitored. With pan / tilt / zoom, it is possible to monitor not only when driving but also when backing up or pulling width, which is useful for driving support. The pan / tilt / zoom functions may be provided mechanically or the field of view may be moved by software.
 　１又は複数のカメラの撮影画像を解析し、人や異物がある場合に、自動ブレーキにより車両速度を制御し、車両を減速又は停止させてもよい。これにより、未然に事故を防ぐことができる。 The vehicle may be decelerated or stopped by analyzing the images taken by one or more cameras and controlling the vehicle speed by automatic braking when there is a person or a foreign object. As a result, an accident can be prevented.
 　なお、本発明は上記実施形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、上記実施形態に開示されている複数の構成要素の適宜な組み合わせにより、種々の発明を形成できる。例えば、実施形態に示される全構成要素から幾つかの構成要素を削除してもよい。さらに、異なる実施形態にわたる構成要素を適宜組み合わせてもよい。 Note that the present invention is not limited to the above embodiment as it is, and at the implementation stage, the components can be modified and embodied within a range that does not deviate from the gist thereof. In addition, various inventions can be formed by an appropriate combination of the plurality of constituent elements disclosed in the above-described embodiment. For example, some components may be removed from all the components shown in the embodiments. In addition, components across different embodiments may be combined as appropriate.
１，１１，１２，１３，１４　カメラ
１Ａ　魚眼レンズ
２　画像処理装置
３　外部メモリ
４　モニタ

  1,11,12,13,14 Camera 1A Fisheye lens 2 Image processing device 3 External memory 4 Monitor

Claims (7)

  1.  　画角２２０°～２５０°の立体射影方式の魚眼レンズを有するカメラと、該カメラで撮影した画像に対し画像処理を施して記憶部に格納する画像処理装置とを備えるドライブレコーダを自動車に設置する方法であって、
     　運転席と、運転席とは反対側のサイドミラーとを結ぶ直線上に、前記魚眼レンズを下向きにして前記カメラを設置することを特徴とするドライブレコーダの設置方法。     A method of installing a drive recorder in an automobile equipped with a camera having a stereographic fisheye lens with an angle of view of 220 ° to 250 ° and an image processing device that performs image processing on the image captured by the camera and stores it in a storage unit. And
    A method of installing a drive recorder, which comprises installing the camera with the fisheye lens facing downward on a straight line connecting the driver's seat and a side mirror on the opposite side of the driver's seat.
  2.  　前記カメラを、前記自動車のフロントガラス上部又は天井の前方部に設置することを特徴とする請求項１に記載のドライブレコーダの設置方法。 The method for installing a drive recorder according to claim 1, wherein the camera is installed on the upper part of the windshield of the automobile or the front part of the ceiling.
  3.  　前記ドライブレコーダは複数のカメラを有しており、車両左右のサイドミラーの少なくとも一方にカメラを設置することを特徴とする請求項１又は２に記載のドライブレコーダの設置方法。 The method for installing a drive recorder according to claim 1 or 2, wherein the drive recorder has a plurality of cameras, and the cameras are installed on at least one of the left and right side mirrors of the vehicle.
  4.  　前記カメラは複数の魚眼レンズを有しており、前記直線上と、車両左右のサイドミラーのうち、少なくとも２ヶ所に魚眼レンズを設置することを特徴とする請求項１又は２に記載のドライブレコーダの設置方法。 The installation of the drive recorder according to claim 1 or 2, wherein the camera has a plurality of fisheye lenses, and the fisheye lenses are installed at least two positions on the straight line and on the left and right side mirrors of the vehicle. Method.
  5.  　画角２２０°～２５０°の立体射影方式の魚眼レンズを有し、該魚眼レンズを下向きにして自動車に設置されるカメラと、
     　前記カメラで撮影した画像に対し画像処理を施して記憶部に格納する画像処理装置と、
     　を備え、
     　前記画像処理装置は、前記カメラで撮影した画像を平面展開し、車両前方側を写した部分と、車両後方側を写した部分とを上下に配置して再生用画像を生成することを特徴とするドライブレコーダ。     A camera that has a stereographic fisheye lens with an angle of view of 220 ° to 250 ° and is installed in an automobile with the fisheye lens facing down.
    An image processing device that performs image processing on the image taken by the camera and stores it in the storage unit.
    With
    The image processing device is characterized in that an image taken by the camera is developed in a plane, and a portion showing the front side of the vehicle and a portion showing the rear side of the vehicle are arranged vertically to generate an image for reproduction. Drive recorder to do.
  6.  　前記カメラは、複数の魚眼レンズと、前記複数の魚眼レンズからの光を受光して電気信号に変換する撮像素子とを有することを特徴とする請求項５に記載のドライブレコーダ。 The drive recorder according to claim 5, wherein the camera includes a plurality of fisheye lenses and an image pickup element that receives light from the plurality of fisheye lenses and converts it into an electric signal.
  7.  　請求項５又は６に記載のドライブレコーダが設置され、前記カメラの撮影画像を解析し、解析結果に基づいて車両速度を制御することを特徴とする自動車。

          An automobile in which the drive recorder according to claim 5 or 6 is installed, an image taken by the camera is analyzed, and the vehicle speed is controlled based on the analysis result.
PCT/JP2020/014720 2019-03-29 2020-03-30 Drive recorder installation method, drive recorder, and automobile WO2020204016A1 (en)

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