WO2016047087A1 - 車載用電子ミラー - Google Patents
車載用電子ミラー Download PDFInfo
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- WO2016047087A1 WO2016047087A1 PCT/JP2015/004673 JP2015004673W WO2016047087A1 WO 2016047087 A1 WO2016047087 A1 WO 2016047087A1 JP 2015004673 W JP2015004673 W JP 2015004673W WO 2016047087 A1 WO2016047087 A1 WO 2016047087A1
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- Prior art keywords
- vehicle
- detection result
- sensor
- camera
- video signal
- Prior art date
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- 238000001514 detection method Methods 0.000 claims abstract description 101
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000003384 imaging method Methods 0.000 claims description 54
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000013459 approach Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 description 26
- 238000003908 quality control method Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
- G06V20/58—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/04—Rear-view mirror arrangements mounted inside vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R2001/1215—Mirror assemblies combined with other articles, e.g. clocks with information displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R2001/1253—Mirror assemblies combined with other articles, e.g. clocks with cameras, video cameras or video screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/8033—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for pedestrian protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/8066—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring rearward traffic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/8093—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for obstacle warning
Definitions
- the present invention relates to an on-vehicle electronic mirror.
- this slow-motion image is not only useful for analyzing athletes' movements and determining the outcome of sports, but it is also very useful for dynamic analysis in various academic research and industrial production fields. Yes.
- the imaging speed When the imaging speed is set to a low value in advance, the amount of image data for imaging is small, but the temporal resolution of the movement part that is regarded as important is low.
- the imaging speed when the imaging speed is set high, the time resolution of the important moving part is increased, but the non-important moving part is picked up at a high imaging speed. Therefore, the amount of image data becomes very large, and a large-capacity memory is required, which increases the manufacturing cost of the apparatus.
- Patent Document 1 even if a moving part that is important for the movement of the subject being imaged and a moving part that is not so are mixed, the moving part that is important is displayed with high time resolution. Discloses a high-speed imaging device that captures images more precisely. As a result, the high-speed imaging device disclosed in Patent Document 1 can suppress the amount of image data to be handled as much as possible, and perform sharp imaging according to the movement of the subject.
- the high-speed imaging device of Patent Document 1 can change the frame rate during imaging at a speed higher than the standard speed, but this device does not consider the case where it is mounted on a vehicle. That is, in the high-speed imaging device disclosed in Patent Document 1, when a captured image is displayed by an in-vehicle electronic mirror, the mirror screen may change at high speed, causing flickering.
- An object of the present invention is to provide a vehicle-mounted electronic mirror that can prevent flickering of the screen when the screen of the vehicle-mounted electronic mirror changes at high speed and can provide optimum information to the user.
- the in-vehicle electronic mirror of the present invention is an in-vehicle electronic mirror mounted on a vehicle, and includes a camera that images the periphery of the vehicle, a video processing unit that processes video captured by the camera, and the video processing A monitor that displays an image processed by the unit, a sensor that is mounted on the vehicle and that detects an event when the vehicle is running, and an image captured by the camera based on a detection result of the sensor And a control unit that performs control to change to an image.
- the present invention it is possible to prevent flickering of the screen when the screen of the in-vehicle electronic mirror changes at high speed and to give the user optimum information.
- FIG. 1 is a diagram showing a configuration of an in-vehicle electronic mirror 10 according to the present embodiment.
- the in-vehicle electronic mirror 10 is mounted on a vehicle.
- vehicle is, for example, an automobile or a two-wheeled vehicle (motorcycle, bicycle, etc.), but may be another moving body (for example, a train, an aircraft, etc.).
- an in-vehicle electronic mirror 10 includes a camera 100, a video signal processing circuit 101, an input circuit 102, a video signal changing circuit 103, an output circuit 104, a monitor 105, a sensor control circuit 106, a vehicle speed sensor 107, a rudder.
- An angle sensor 108, an optical sensor 109, a position sensor 110, a direction sensor 111, and a video signal control circuit 112 are included.
- the camera 100 images the periphery of the vehicle and outputs a video signal to the video signal processing circuit 101.
- the video signal processing circuit 101 includes an input circuit 102, a video signal change circuit 103, and an output circuit 104.
- the input circuit 102 inputs a video signal from the camera 100, performs predetermined processing on the video signal, and outputs the processed video signal to the video signal change circuit 103.
- the video signal changing circuit 103 changes the video signal input from the input circuit 102 to another video signal based on a control signal input from the video signal control circuit 112 described later. Then, the video signal change circuit 103 outputs the changed video signal to the output circuit 104.
- the output circuit 104 outputs the video signal input from the video signal changing circuit 103 to the monitor 105 described later.
- the monitor 105 displays on the screen (also referred to as a display) the video imaged by the camera 100 based on the video signal input from the output circuit 104, and displays the input image additional information on the screen.
- the image additional information is, for example, information indicating the distance between the vehicle and an object (for example, a following vehicle, a pedestrian, a building, a traffic light, a guardrail, a road sign, etc.), or information indicating the approach of a following vehicle or an emergency vehicle. , Information indicating the distance and time to the destination, information indicating the surrounding environment and events of the vehicle (for example, weather, temperature, time, etc.), information indicating the installation position of the camera 100, information indicating the electronic compass, information other than the camera 100 Information indicating video (for example, around view and rear view) captured by the camera, information indicating a predetermined switch, and the like.
- an object for example, a following vehicle, a pedestrian, a building, a traffic light, a guardrail, a road sign, etc.
- Information indicating the distance and time to the destination for example, weather, temperature, time, etc.
- information indicating the installation position of the camera 100 for example, weather, temperature, time, etc.
- a switch for instructing opening / closing of a garage For example, a switch for instructing opening / closing of a garage, a switch for turning on / off a garage light, a switch for turning on / off a house lock, a switch for turning on / off a house light, and a doorbell for returning home.
- the additional image information may be information calculated based on detection results from sensors mounted on the vehicle (for example, sensors 107 to 111 described later, or other sensors (not shown)). Information acquired by wireless communication may be used, or information stored in advance in a storage unit (not shown) mounted on the vehicle may be used.
- Fig. 2 shows a display example of the above image additional information.
- image additional information a to e is displayed on the display (screen) of the monitor 105 so as to be superimposed on the video from the output circuit 104.
- the additional image information a to e includes information indicating the distance between the vehicle and the object described above, information indicating the approach of the following vehicle or emergency vehicle, information indicating the distance and time to the destination, the surrounding environment of the vehicle, Information indicating an event, information indicating an installation position of the camera 100, information indicating an electronic compass, information indicating an image captured by a camera other than the camera 100, or information indicating a predetermined switch.
- the sensor control circuit 106 receives signals (hereinafter referred to as detection result signals) from the sensors 107 to 111 mounted on the vehicle, and controls the output of the detection result signals to the video signal control circuit 112.
- Sensors 107 to 111 are sensors mounted on the vehicle.
- the vehicle speed sensor 107 detects the speed of the vehicle.
- the steering angle sensor 108 detects the steering angle of the steering of the vehicle.
- the optical sensor 109 detects the brightness around the vehicle.
- the position sensor 110 detects the gear position of the transmission of the vehicle.
- the direction sensor 111 detects the indication direction of the vehicle direction indicator. The detection results of these sensors 107 to 111 are output to the sensor control circuit 106 as detection result signals as described above.
- the video signal control circuit 112 generates a control signal indicating control contents for the video signal change circuit 103 of the video signal processing circuit 101 based on the detection result signal input from the sensor control circuit 106, and changes the control signal to the video signal change. Output to the circuit 103.
- a control signal indicating control contents for the video signal change circuit 103 of the video signal processing circuit 101 based on the detection result signal input from the sensor control circuit 106, and changes the control signal to the video signal change. Output to the circuit 103.
- the video signal control circuit 112 generates a control signal indicating that the input video signal is changed to a video signal having a first frame rate (for example, 15 fps) when the detection result of the vehicle speed sensor 107 is less than a predetermined threshold. To do.
- the video signal control circuit 112 changes the input video signal to a video signal having a second frame rate (for example, 30 fps) larger than the first frame rate when the detection result of the vehicle speed sensor 107 is equal to or greater than a predetermined threshold. A control signal to that effect is generated.
- the video signal control circuit 112 controls to change the input video signal to a video signal having a first frame rate (for example, 15 fps). Generate a signal.
- the video signal control circuit 112 converts the input video signal into a video signal having a second frame rate (for example, 30 fps) that is larger than the first frame rate. A control signal for changing is generated.
- the video signal control circuit 112 changes the input video signal to a video signal having a first frame rate (for example, 15 fps). Generate a control signal.
- the video signal control circuit 112 changes the input video signal to a video signal having a second frame rate (for example, 30 fps) that is higher than the first frame rate. A control signal to that effect is generated.
- the video signal control circuit 112 may generate a control signal for changing to the video signal of the second frame rate when the detection result of the optical sensor 109 is less than a predetermined threshold, for example.
- the video signal control circuit 112 may generate a control signal for changing to the video signal having the first frame rate.
- the video signal control circuit 112 controls to change the input video signal to a video signal having a first frame rate (for example, 15 fps). Generate a signal.
- the video signal control circuit 112 converts the input video signal into a video signal having a second frame rate (for example, 30 fps) larger than the first frame rate. A control signal for changing is generated.
- the video signal control circuit 112 changes the input video signal to a video signal having a first frame rate (for example, 15 fps) when the detection result of the direction sensor 111 indicates neither left turn nor right turn. Control signal is generated.
- the video signal control circuit 112 converts the input video signal to a second frame rate (for example, 30 fps) larger than the first frame rate. A control signal for changing to a video signal is generated.
- the video signal changing circuit 103 described above may have a function of changing the optical axis of the camera 100.
- the video signal control circuit 112 changes the optical axis of the camera 100 according to the detection result signal (steering angle of the steering) of the steering angle sensor 108, and moves the left and right cropping of the image (like morphing).
- the video signal changing circuit 103 is controlled. Thereby, the video that the user wants to see can be displayed near the center of the screen, and the video can be easily viewed by the user.
- the jerky display of the video can be slightly reduced, making it easier for the user to view the video.
- FIG. 3 is a diagram showing a configuration of the in-vehicle electronic mirror 20 according to the present embodiment. 3 are denoted by the same reference numerals as those in FIG. 1 described in the first embodiment. Below, only the component which performs operation
- the video signal processing circuit 201 includes a frame rate changing circuit 203 instead of the video signal changing circuit 103 described in the first embodiment.
- the frame rate changing circuit 203 changes the video signal input from the input circuit 102 to another video signal based on a control signal input from the frame rate control circuit 212 described later. For example, the frame rate changing circuit 203 changes the video signal input from the input circuit 102 to another video signal by changing the frame rate of the camera 100 based on the control signal. Then, the frame rate changing circuit 203 outputs the changed video signal to the output circuit 104.
- the frame rate control circuit 212 Based on the detection result signal input from the sensor control circuit 106, the frame rate control circuit 212 generates a control signal indicating the control content for the frame rate changing circuit 203 of the video signal processing circuit 201, and changes the control signal to the frame rate. Output to the circuit 203.
- a control signal indicating the control content for the frame rate changing circuit 203 of the video signal processing circuit 201, and changes the control signal to the frame rate.
- the frame rate control circuit 212 when the detection result of the vehicle speed sensor 107 is less than a threshold (specified speed) (that is, when the vehicle is traveling at a speed less than the threshold), the frame rate control circuit 212 has a first frame rate (for example, , 30 fps), a control signal for instructing imaging is generated.
- a threshold specified speed
- the frame rate control circuit 212 when the detection result of the vehicle speed sensor 107 is equal to or higher than the threshold value (that is, when the vehicle is traveling at a speed equal to or higher than the threshold value), the frame rate control circuit 212 has a second frame rate higher than the first frame rate.
- a control signal for instructing imaging at for example, 60 fps
- the frame rate control circuit 212 when the detection result of the rudder angle sensor 108 is less than a threshold value (a prescribed angle) (that is, when the vehicle bends at a steering angle less than the threshold value), the frame rate control circuit 212 performs the first frame. A control signal for instructing imaging at a rate is generated.
- the frame rate control circuit 212 instructs imaging at the second frame rate. A control signal to that effect is generated.
- the frame rate control circuit 212 when the detection result of the optical sensor 109 is less than a threshold value (specified brightness) (that is, when the vehicle is traveling in an environment having a brightness less than the threshold value), the frame rate control circuit 212 A control signal for instructing imaging at the first frame rate is generated.
- the frame rate control circuit 212 performs imaging at the second frame rate when the detection result of the optical sensor 109 is greater than or equal to the threshold (that is, when the vehicle is traveling in an environment with brightness greater than or equal to the threshold). A control signal for instructing is generated.
- the frame rate control circuit 212 when the detection result of the optical sensor 109 is less than a threshold value (specified brightness) (that is, when the vehicle is traveling in an environment having a brightness less than the threshold value), the frame rate control circuit 212 A control signal for instructing imaging at the second frame rate may be generated.
- the frame rate control circuit 212 performs imaging at the first frame rate when the detection result of the optical sensor 109 is equal to or greater than the threshold value (that is, when the vehicle is traveling in an environment with brightness equal to or greater than the threshold value).
- a control signal for instructing may be generated.
- the frame rate control circuit 212 when the detection result of the position sensor 110 is the first gear position (that is, when the vehicle is traveling in the low speed gear), the frame rate control circuit 212 performs imaging at the first frame rate. A control signal for instructing is generated.
- the frame rate control circuit 212 instructs to capture at the second frame rate. A control signal to that effect is generated.
- the frame rate control circuit 212 performs the above operation at the first frame rate. A control signal for instructing imaging is generated.
- the frame rate control circuit 212 performs imaging at the second frame rate. A control signal for instructing is generated.
- FIG. 4 is a diagram showing a configuration of the in-vehicle electronic mirror 30 according to the present embodiment. 4 are denoted by the same reference numerals as those of FIG. 1 described in the first embodiment. Below, only the component which performs operation
- the video signal processing circuit 301 includes an image quality changing circuit 303 instead of the video signal changing circuit 103 described in the first embodiment.
- the image quality changing circuit 303 changes the video signal input from the input circuit 102 to another video signal based on a control signal input from the image quality control circuit 312 described later. For example, the image quality changing circuit 303 changes the video signal input from the input circuit 102 to another video signal by changing the image quality (for example, resolution) of the camera 100 based on the control signal. Then, the image quality changing circuit 303 outputs the changed video signal to the output circuit 104.
- the image quality changing circuit 303 changes the video signal input from the input circuit 102 to another video signal by changing the image quality (for example, resolution) of the camera 100 based on the control signal. Then, the image quality changing circuit 303 outputs the changed video signal to the output circuit 104.
- the image quality control circuit 312 Based on the detection result signal input from the sensor control circuit 106, the image quality control circuit 312 generates a control signal indicating control contents for the image quality change circuit 303 of the video signal processing circuit 301, and sends the control signal to the image quality change circuit 303. Output.
- the control signal generated here will be described.
- the image quality control circuit 312 controls to instruct imaging with the first image quality. Generate a signal.
- the image quality control circuit 312 has a second image quality higher than the first image quality. A control signal for instructing imaging at is generated.
- the image quality control circuit 312 instructs imaging with the first image quality. A control signal to that effect is generated.
- the detection result of the rudder angle sensor 108 is equal to or greater than the threshold value (that is, when the vehicle turns at a steering angle equal to or greater than the threshold value)
- the image quality control circuit 312 instructs to capture an image with the second image quality. Generate a control signal.
- the image quality control circuit 312 when the detection result of the optical sensor 109 is less than the threshold value (that is, when the vehicle is traveling in an environment having a brightness less than the threshold value), the image quality control circuit 312 performs imaging with the first image quality. A control signal for instructing is generated.
- the detection result of the optical sensor 109 is greater than or equal to the threshold value (that is, when the vehicle is traveling in an environment with brightness greater than or equal to the threshold value)
- the image quality control circuit 312 instructs imaging with the second image quality. A control signal to that effect is generated.
- the image quality control circuit 312 determines that the detection result of the optical sensor 109 is less than a threshold value (specified brightness) (that is, when the vehicle is traveling in an environment having a brightness less than the threshold value). A control signal for instructing imaging with an image quality of 2 may be generated.
- a threshold value specified brightness
- the image quality control circuit 312 instructs imaging with the first image quality. A control signal to that effect may be generated.
- the image quality control circuit 312 instructs imaging with the first image quality. A control signal to that effect is generated.
- the detection result of the position sensor 110 is the second gear (that is, when the vehicle is traveling in the high speed gear)
- the image quality control circuit 312 instructs the imaging with the second image quality. Generate a control signal.
- the image quality control circuit 312 performs imaging with the first image quality when the detection result of the direction sensor 111 indicates neither left turn nor right turn (that is, when the direction indicator is not operating). A control signal for instructing is generated.
- the image quality control circuit 312 gives an instruction for imaging with the second image quality. A control signal to that effect is generated.
- the image quality control circuit 312 has the second image quality (high image quality) of the image displayed on the central area of the display among the images displayed on the display of the monitor 105.
- a control signal for instructing imaging may be generated so that an image displayed in the peripheral area of the image has the first image quality (low image quality).
- the image quality control circuit 312 determines the direction when the detection result of any one of the vehicle speed sensor 107, the steering angle sensor 108, and the optical sensor 109 is less than the threshold value, when the detection result of the position sensor 110 is the first gear position. In the case where the detection result of the sensor 111 indicates neither left turn nor right turn, the following control signal is generated. That is, the image quality control circuit 312 sets the central area to the first area, and sets the sum of the two peripheral areas to the second area (for example, the area excluding the first area from the entire area of the display). Then, a control signal for instructing to capture the video displayed in the central area with high image quality and to capture the video displayed in the peripheral area with low image quality is generated.
- the image quality control circuit 312 determines that the detection result of the position sensor 110 is the second gear position.
- the following control signal is generated in any of the cases where the detection result of the direction sensor 111 indicates either a left turn or a right turn. That is, the image quality control circuit 312 sets the central area to a third area larger than the first area, and sets the total of the two peripheral areas to the fourth area (for example, the third area from the entire area of the display). The control signal is generated to instruct to capture the video displayed in the central area with high image quality and to capture the video displayed in the peripheral area with low image quality.
- the setting of the area of the central region described above may be performed by applying the change in the angle of view of the fourth embodiment described later.
- FIG. 6 is a diagram showing a configuration of the in-vehicle electronic mirror 40 according to the present embodiment. 6 are denoted by the same reference numerals as those in FIG. 1 described in the first embodiment. Below, only the component which performs operation
- the video signal processing circuit 401 includes a view angle changing circuit 403 instead of the video signal changing circuit 103 described in the first embodiment.
- the view angle changing circuit 403 changes the video signal input from the input circuit 102 to another video signal based on a control signal input from the view angle control circuit 412 described later.
- the angle-of-view changing circuit 403 changes the video signal input from the input circuit 102 to another video signal by changing the angle of view of the camera 100 based on the control signal. Then, the angle-of-view changing circuit 403 outputs the changed video signal to the output circuit 104.
- the angle-of-view control circuit 412 Based on the detection result signal input from the sensor control circuit 106, the angle-of-view control circuit 412 generates a control signal indicating the control content for the angle-of-view change circuit 403 of the video signal processing circuit 401, and changes the angle of view of the control signal. Output to the circuit 403.
- the control signal generated here will be described.
- the view angle control circuit 412 instructs to capture an image at the first angle of view. Control signal is generated.
- the angle of view control circuit 412 has a second angle of view wider than the first angle of view. A control signal for instructing imaging at is generated.
- the angle of view control circuit 412 performs imaging at the first angle of view. A control signal for instructing is generated.
- the angle-of-view control circuit 412 instructs imaging at the second angle of view. A control signal to that effect is generated.
- the view angle control circuit 412 uses the first angle of view. A control signal for instructing imaging is generated.
- the angle of view control circuit 412 performs imaging at the second angle of view. A control signal for instructing is generated.
- the angle-of-view control circuit 412 may be configured to perform the above operation when the detection result of the optical sensor 109 is less than a threshold value (specified brightness) (that is, when the vehicle is traveling in an environment having a brightness less than the threshold value). A control signal for instructing imaging at the second angle of view may be generated.
- a threshold value specified brightness
- the angle-of-view control circuit 412 performs imaging at the first angle of view. A control signal for instructing may be generated.
- the angle of view control circuit 412 captures images at the first angle of view. A control signal for instructing is generated.
- the angle-of-view control circuit 412 instructs imaging at the second angle of view. A control signal to that effect is generated.
- the angle of view control circuit 412 when the detection result of the direction sensor 111 does not indicate either a left turn or a right turn (that is, when the direction indicator is not operating), the angle of view control circuit 412 A control signal for instructing imaging is generated. On the other hand, when the detection result of the direction sensor 111 indicates either the left turn or the right turn (that is, when the direction indicator is operating), the angle of view control circuit 412 performs imaging at the second angle of view. A control signal for instructing is generated.
- FIG. 7 is a diagram showing a display form of the in-vehicle electronic mirror according to the present embodiment.
- the in-vehicle electronic mirror of the present embodiment has a monitor control circuit that inputs a detection result signal from the sensor control circuit 106 shown in FIG. 1 and the like and controls the display of the monitor 105 based on the detection result signal.
- the monitor control circuit detects that the detection result of the position sensor 110 is the first gear position (low speed gear).
- the following control signal is generated in either case where the detection result of the direction sensor 111 indicates neither left turn nor right turn. That is, the monitor control circuit generates a control signal for controlling the monitor 105 so that the display of the monitor 105 displays a video based on the video signal from the output circuit 104, and outputs the control signal to the monitor 105. Thereby, the video imaged by the camera 100 is displayed on the display.
- the monitor control circuit determines that the detection result of the position sensor 110 is the second gear position (high speed In the case where the detection result of the direction sensor 111 indicates either left turn or right turn, the following control signal is generated. That is, the monitor control circuit generates a control signal for controlling the monitor 105 so that the display of the monitor 105 is switched to the hard mirror, and outputs the control signal to the monitor 105. As a result, as shown in FIG. 7, the entire area of the display is switched to the hard mirror.
- the monitor control circuit hardens the display. A control signal for instructing to switch to the mirror may be generated.
- the monitor control circuit displays the image captured by the camera 100 on the display. A control signal for instructing to do so may be generated.
- the present embodiment it is possible to prevent flickering of the screen when the screen of the in-vehicle electronic mirror changes at high speed, and to provide optimum information to the user (vehicle occupant). As a result, it is possible to reduce user fatigue and contribute to safe driving.
- the present invention can be used for an in-vehicle electronic mirror that prevents flickering of the screen when the screen of the in-vehicle electronic mirror changes at high speed and prevents passengers from getting sick.
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Abstract
Description
本発明の実施の形態1について図1を参照して説明する。図1は、本実施の形態に係る車載用電子ミラー10の構成を示す図である。
本発明の実施の形態2について図3を参照して説明する。図3は、本実施の形態に係る車載用電子ミラー20の構成を示す図である。図3に示す各部には、上記実施の形態1で説明した図1の各部と同一の符号を付している。以下では、図3に示す各部のうち、実施の形態1と異なる動作を行う構成要素についてのみ説明する。
本発明の実施の形態3について図4を参照して説明する。図4は、本実施の形態に係る車載用電子ミラー30の構成を示す図である。図4に示す各部には、上記実施の形態1で説明した図1の各部と同一の符号を付している。以下では、図4に示す各部のうち、実施の形態1と異なる動作を行う構成要素についてのみ説明する。
本発明の実施の形態4について図6を参照して説明する。図6は、本実施の形態に係る車載用電子ミラー40の構成を示す図である。図6に示す各部には、上記実施の形態1で説明した図1の各部と同一の符号を付している。以下では、図6に示す各部のうち、実施の形態1と異なる動作を行う構成要素についてのみ説明する。
本発明の実施の形態5について図7を参照して説明する。図7は、本実施の形態に係る車載用電子ミラーの表示形態を示す図である。
100 カメラ
101、201、301、401 映像信号処理回路
102 入力回路
103 映像信号変更回路
104 出力回路
105 モニタ
106 センサ制御回路
107 車速センサ
108 舵角センサ
109 光センサ
110 位置センサ
111 方向センサ
112 映像信号制御回路
203 フレームレート変更回路
212 フレームレート制御回路
303 画質変更回路
312 画質制御回路
403 画角変更回路
412 画角制御回路
Claims (8)
- 車両に搭載される車載用電子ミラーであって、
前記車両の周辺を撮像するカメラと、
前記カメラで撮像された映像を処理する映像処理部と、
前記映像処理部で処理された映像を表示するモニタと、
前記車両に搭載され、前記車両の走行時の事象を検出するセンサと、
前記センサの検出結果に基づいて、前記カメラで撮像される映像を別の映像に変更する制御を行う制御部と、を備える、
車載用電子ミラー。 - 前記制御部は、
前記センサの検出結果が第1の検出結果である場合、所定のフレームレートで撮像を行うように前記カメラを制御し、
前記センサの検出結果が第2の検出結果である場合、前記所定のフレームレートより大きい別のフレームレートで撮像を行うように前記カメラを制御する、
請求項1記載の車載用電子ミラー。 - 前記制御部は、
前記センサの検出結果が第1の検出結果である場合、所定の画質で撮像を行うように前記カメラを制御し、
前記センサの検出結果が第2の検出結果である場合、前記所定の画質より高い別の画質で撮像を行うように前記カメラを制御する、
請求項1記載の車載用電子ミラー。 - 前記制御部は、
前記センサの検出結果が第1の検出結果である場合、前記モニタの画面の中央領域を第1の面積に設定し、前記中央領域に表示される映像が所定の画質となる撮像を行い、かつ、前記中央領域以外の周辺領域を第2の面積に設定し、前記周辺領域に表示される映像が前記所定の画質より低い別の画質となる撮像を行うように前記カメラを制御し、
前記センサの検出結果が第2の検出結果である場合、前記モニタの画面の中央領域を前記第1の面積より大きい第3の面積に設定し、前記中央領域に表示される映像が前記所定の画質となる撮像を行い、かつ、前記中央領域以外の周辺領域を第4の面積に設定し、前記周辺領域に表示される映像が前記別の画質となる撮像を行うように前記カメラを制御する、
請求項1記載の車載用電子ミラー。 - 前記制御部は、
前記センサの検出結果が第1の検出結果である場合、所定の画角で撮像を行うように前記カメラを制御し、
前記センサの検出結果が第2の検出結果である場合、前記所定の画角より広い別の画角で撮像を行うように前記カメラを制御する、
請求項1記載の車載用電子ミラー。 - 前記制御部は、
前記センサの検出結果が第1の検出結果である場合、前記映像処理部で処理された映像を表示するように前記モニタを制御し、
前記センサの検出結果が第2の検出結果である場合、ハードミラーとして機能するように前記モニタを制御する、
請求項1記載の車載用電子ミラー。 - 前記センサの検出結果が第1の検出結果である場合は、
前記車両の速度が規定の速度未満である場合、前記車両のステアリングの操舵角が規定の角度未満である場合、前記車両の周辺の明るさが規定の明るさ未満である場合、前記車両の変速機のギアが低速ギアである場合、前記車両の方向指示器が動作している場合のいずれかであり、
前記センサの検出結果が第2の検出結果である場合は、
前記車両の速度が規定の速度以上である場合、前記車両のステアリングの操舵角が規定の角度以上である場合、前記車両の周辺の明るさが規定の明るさ以上である場合、前記車両の変速機のギアが高速ギアである場合、前記車両の方向指示器が動作していない場合のいずれかである、
請求項1記載の車載用電子ミラー。 - 前記モニタは、
前記車両と所定の対象物との間の距離を示す情報、後続車または緊急車両の接近を示す情報、目的地までの距離や時間を示す情報、前記車両の周辺環境または事象を示す情報、前記カメラの設置位置を示す情報、電子コンパスを示す情報、前記カメラ以外のカメラで撮像された映像を示す情報、所定のスイッチを示す情報のいずれかを、前記映像処理部で処理された映像に重畳して表示する、
請求項1記載の車載用電子ミラー。
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CN201580051631.9A CN107079133A (zh) | 2014-09-24 | 2015-09-14 | 车载用电子反射镜 |
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