CN113212312B - AR rearview mirror assembly and control method thereof - Google Patents
AR rearview mirror assembly and control method thereof Download PDFInfo
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- CN113212312B CN113212312B CN202010068155.4A CN202010068155A CN113212312B CN 113212312 B CN113212312 B CN 113212312B CN 202010068155 A CN202010068155 A CN 202010068155A CN 113212312 B CN113212312 B CN 113212312B
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- 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
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- 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
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- 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
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- 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
- B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
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- 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
- B60R2300/20—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used
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- 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
- B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
- B60R2300/303—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing using joined images, e.g. multiple camera images
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- 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
- B60R2300/8046—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 replacing a rear-view mirror system
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention protects an AR rearview mirror assembly and a control method, wherein the control method comprises the steps of carrying out operation processing on a monitored real-time image behind an automobile, human eye image information and rearview mirror angle information to obtain virtual image information, sending the virtual image information to a transparent display screen on an intelligent rearview mirror assembly, and superposing the virtual image information with a real scene reflected by an intelligent rearview mirror to realize AR display. The invention adopts the method of forming AR display by the mirror objective imaging and the virtual imaging superposition of the display, so that the real world picture of the rearview mirror can be superposed and fused with the virtual image information, AR augmented reality output is carried out on the real environment, rich display information is provided for a driver, and the driving experience is improved.
Description
Technical Field
The invention belongs to the technology of automobile rearview mirrors, and particularly relates to a rearview mirror assembly with an AR function and a control technology thereof.
Background
With the progress of display technology, AR augmented reality technology is increasingly used. The AR technology enables augmented reality output of a real environment, and a user can obtain display information related to a real scene by superposition of real world and virtual data. The application can provide more intuitive and richer decision information for a driver on a vehicle, and improves the driving experience.
In automobiles, the existing AR technology is mainly applied to head-up display, and no rear view mirror AR is applied. The AR is applied to the rearview mirror, so that richer auxiliary driving information can be provided, and the driving safety is improved. The prior art utilizes current HUD LCD technique to utilize AR on the rear-view mirror more, and it has the huge problem that can't arrange that the volume, and the live-action picture passes through the camera to transmit to the LCD in addition, has delay and AR poor effect problem.
Disclosure of Invention
The invention provides a rearview mirror assembly for realizing an AR function and a control method thereof, wherein a method of forming AR display by reflector objective lens imaging and display virtual imaging superposition is adopted, so that real world pictures of a rearview mirror can be superposed and fused with virtual image information, AR augmented reality output is carried out on a real environment, rich display information is provided for a driver, and driving experience is improved.
The technical scheme of the invention is as follows:
a control method of an AR rearview mirror assembly includes the steps of carrying out operation processing on monitored real-time images behind an automobile, image information of human eyes and rearview mirror angle information to obtain virtual image information, sending the virtual image information to a transparent display screen on an intelligent rearview mirror assembly, and overlapping the virtual image information with real scenes reflected by an intelligent rearview mirror to achieve AR display.
Specifically, in the method, the virtual image information obtained by the arithmetic processing is: calculating virtual image information to be displayed according to the picture of the driving rearview mirror; obtaining the position information of human eyes of a driver according to the image information of the human eyes, and simulating a real mirror image seen by the driver from the optical reflector; and then the virtual image information to be displayed is subjected to position adjustment, cutting and stretching treatment according to the real mirror image seen by the human eyes, and is compiled into a video signal, namely the virtual image information.
Further, the virtual image information required to be displayed calculated according to the driving rearview mirror image is a real-time image acquired by analyzing a rear camera of the automobile, object feature points in the image are extracted by the controller, the object feature points are compared and matched, and after the object attribute is confirmed, the rearview mirror sends a corresponding virtual image to the display screen. These virtual image information may be vehicles, pedestrians, objects, and the like.
Specifically, in the invention, the virtual image information and the real scene reflected by the intelligent rearview mirror are superposed in such a way that the virtual image information on the display screen penetrates through the optical reflector and is superposed with the real mirror image seen by the driver through the optical reflector, so that the AR display effect is realized.
The invention further provides an AR rearview mirror assembly which comprises an information monitoring module, a control module and an intelligent rearview mirror assembly.
The information monitoring module is used for monitoring and obtaining real-time images behind the automobile, human eye image information and rearview mirror angle information.
The control module is used for carrying out operation processing on the information to obtain virtual image information and sending the virtual image information to the rearview mirror assembly.
The intelligent rearview mirror assembly is used for superposing the virtual image information and the real scene reflected by the rearview mirror so as to realize AR display.
The invention has the following advantages:
1. the invention realizes the real world picture through the optical mirror surface, has no delay and no distortion and perfectly reproduces the real world.
2. The invention can realize dynamic adjustment of virtual pictures by tracking the positions of human eyes and realize large-angle viewing.
3. The invention superposes the virtual picture and the real picture at a short distance, and realizes the AR effect of perfect fusion of virtual and real pictures.
Drawings
FIG. 1 is a schematic view of the composition of an AR rearview mirror assembly (example 1).
Fig. 2 is a schematic view of an AR rearview mirror assembly (embodiment 1).
FIG. 3 is a schematic view of the composition of an AR rearview mirror assembly (embodiment 2).
Fig. 4 is a schematic view of an intelligent rearview mirror assembly (example 2).
Fig. 5 is a block diagram of an AR rearview mirror assembly system.
In the figure, 1-a human eye monitoring camera, 2-an infrared light supplement lamp, 3-a vehicle-mounted control host, 4-a driving rearview camera, 5-a semi-transparent intelligent rearview mirror assembly, 51-a semi-transparent optical reflector, 52-a display screen, 53-an intelligent rearview mirror drive board, 54-an intelligent rearview mirror machine component, 55-virtual image information, 56-a real mirror image, 6-a reflective intelligent rearview mirror assembly, 61-a transparent display screen, 62-a total reflection optical mirror, 63-an intelligent rearview mirror drive board and 64-an intelligent rearview mirror machine component.
Detailed Description
The following detailed description of the rearview mirror assembly and the control method for realizing the AR function provided by the invention is provided with the accompanying drawings and the specific embodiments:
referring to fig. 5, in the scheme, a camera sensor is arranged behind a vehicle body to monitor real-time images behind the vehicle; the camera sensor in the vehicle monitors the position of eyeballs of a driver; the angle sensor confirms the angle information of the rearview mirror; after the information is processed through the operation of the vehicle-mounted control host, the virtual image information is sent to a transparent display screen on the intelligent rearview mirror assembly and is overlapped with the real scene reflected by the intelligent rearview mirror, so that AR display is realized.
AR rearview mirror assembly includes information monitoring module, control module, intelligent rear-view mirror assembly.
The information monitoring module is used for monitoring and obtaining real-time images behind the automobile, human eye image information and rearview mirror angle information. The information monitoring module comprises a human eye monitoring camera, a driving rearview camera and a gyroscope, and is used for respectively acquiring human eye image information, a real-time automobile rear picture and rearview mirror angle information.
The control module is used for carrying out operation processing on the information to obtain virtual image information and sending the virtual image information to the rearview mirror assembly.
The intelligent rearview mirror assembly is used for superposing the virtual image information and the real scene reflected by the rearview mirror so as to realize AR display.
The following is a detailed description of two embodiments.
Example 1:
as shown in fig. 1, the AR rearview mirror assembly specifically includes a human eye monitoring camera 1, an infrared light supplement lamp 2, a vehicle-mounted control host 3, a driving rearview camera 4, an intelligent rearview mirror assembly 5, and the like. The driving rearview camera 4 can be integrated on the intelligent rearview mirror assembly, and can also be independently arranged outside the automobile to obtain real-time images behind the automobile. A gyroscope can be arranged in the intelligent rearview mirror assembly to obtain angle information of the rearview mirror. The human eye monitoring camera 1 is installed in front of a driver in a vehicle to acquire human eye image information. The vehicle-mounted control host 4 can be an independent vehicle-mounted host, and can also be other integrated hosts, such as an instrument host and a central control entertainment host.
As shown in fig. 2, the semi-transparent intelligent rearview mirror assembly 5 includes a semi-transparent optical reflector 51, a display screen 52, an intelligent rearview mirror driving board 53, an intelligent rearview mirror mechanism 54, and the like, which are integrally installed, the semi-transparent optical reflector 51 is located in front of the display screen 52 and is arranged according to an optical structure, the intelligent rearview mirror driving board 53 is used for driving the reflector, and the intelligent rearview mirror mechanism 54 is used for integrating and assembling the components on the vehicle. The display screen 52 may be a TFT-LCD, OLED, LED, QLED, mini-LED, micro-LED, or the like.
Referring to fig. 5, in the assembly, a human eye monitoring camera 1 collects human eye image information, an infrared light supplement lamp 2 is used for ensuring the monitoring imaging quality of a driver at night, and a driving rearview camera 4 collects pictures of a driving rearview mirror. After analyzing the picture of the driving rearview mirror received from the driving rearview camera 4, the vehicle-mounted control host 3 firstly calculates the virtual image information to be displayed; then the vehicle-mounted control host 3 obtains the position information of the human eyes of the driver by analyzing the human eye image information sent by the human eye monitoring camera 1 and simulates a real mirror image seen by the driver from the semi-transparent optical reflector 51; then, the virtual image information to be displayed is adjusted in position, cut, stretched and the like according to the real mirror image seen by the human eyes, compiled into a video signal and sent to a display screen 52 on the intelligent rearview mirror assembly; the display screen 52 performs displaying of virtual image information. Since the virtual image information on the display screen 52 can penetrate through the half-transmissive optical mirror 51 and form a superposition with the real mirror image seen by the driver through the half-transmissive optical mirror 51, the AR display effect is realized.
The detailed working flow is as follows:
1: human eye monitoring camera 1 real time monitoring driver face state to send the human eye image information who gathers to on-vehicle control host computer 3 through video signal, infrared light filling lamp 2 receives turn-on signal (this signal can be little lamp signal, BCM, or light sensor sends) when not enough light, and the infrared light filling work of people's face.
2: the driving rearview camera 4 collects driving rearview mirror pictures and sends collected driving images of the rearview mirrors to the vehicle-mounted control host 3 through video signals.
3: the vehicle-mounted control host 3 analyzes the picture of the rearview mirror received from the rearview camera 4 and calculates the virtual image information to be displayed. Then the vehicle-mounted control host 3 obtains the position information of the human eyes of the driver by analyzing the human eye image information sent by the human eye monitoring camera 1 and simulates a real mirror image seen by the driver from the semi-transparent optical reflector 51; and then according to the real mirror image seen by the simulated human eyes, the virtual image information to be displayed is subjected to position adjustment, cutting, stretching and the like, so that good combination with the real mirror image is ensured. The processed virtual image information is finally compiled into a video signal and sent to the display screen 52.
4: the display screen 52 receives the virtual information sent by the vehicle-mounted control host 3 and performs display; the virtual image information on the display screen 52 can penetrate the semi-transparent optical mirror 51 and form a superposition with the real mirror image reflected by the semi-transparent optical mirror, so as to generate an AR display effect.
Example 2:
referring to fig. 3, in this embodiment, the AR rearview mirror assembly includes an eye monitoring camera 1, an infrared light supplement lamp 2, a vehicle-mounted control host 3, a driving rearview camera 4, a reflective intelligent rearview mirror assembly 6, and the like. Wherein driving rear view camera 4 can be integrated on intelligent rear-view mirror assembly, also can arrange outside the car alone. The vehicle-mounted control host 4 can be an independent vehicle-mounted host, and can also be other integrated hosts, such as an instrument host and a central control entertainment host.
Referring to fig. 4, the reflective intelligent rearview mirror assembly 6 of the present embodiment is composed of a transparent display screen 61, a total reflection optical mirror 62, an intelligent rearview mirror driving board 63, an intelligent rearview mirror mechanism 64, and the like, which are assembled into a whole, wherein the transparent display screen 61 is located in front of the total reflection optical mirror 62 and is arranged according to an optical structure. The transparent display screen 61 may be a TFT-LCD, OLED, LED, QLED, mini-LED, micro-LED, etc. display screen using transparent technology.
Referring to fig. 5, in the assembly, a human eye monitoring camera 1 acquires human eye image information, an infrared light supplement lamp 2 is used for ensuring the monitoring imaging quality of a driver at night, and a driving rearview camera 4 acquires a driving rearview mirror picture; after analyzing the picture of the rearview mirror received from the driving rearview camera 4, the vehicle-mounted control host 3 firstly calculates the virtual information to be displayed; then the vehicle-mounted control host 3 obtains the position information of the human eyes of the driver by analyzing the human eye image information sent by the human eye monitoring camera 1 and simulates a real mirror image seen by the driver from the total reflection optical mirror 62; then, the virtual image information to be displayed is adjusted in position, cut, stretched and the like according to the real mirror image seen by the human eyes, compiled into a video signal and sent to the transparent display screen 61; the transparent display screen 61 performs displaying of virtual image information. The real mirror image formed by the total reflection optical reflecting mirror 62 can be transmitted through the transparent display screen 61 and superposed with the virtual image information displayed by the transparent display screen, so that the AR display effect is realized.
The workflow of this embodiment is as follows:
1: human eye monitoring camera 1 real time monitoring driver face state to send the human eye image information who gathers to on-vehicle control host computer 3 through video signal, infrared light filling lamp 2 receives turn-on signal (this signal can be little lamp signal, BCM, or light sensor sends) when not enough light, and the infrared light filling work of people's face.
2: the driving rearview camera 4 collects driving rearview mirror pictures and sends collected driving images of the rearview mirrors to the vehicle-mounted control host 3 through video signals.
3: the vehicle-mounted control host 3 analyzes the picture of the rearview mirror received from the rearview camera 4 and calculates the virtual information to be displayed. Then the vehicle-mounted control host 3 obtains the position information of the human eyes of the driver by analyzing the human eye image information sent by the human eye monitoring camera 1 and simulates a real mirror image seen by the driver from the total reflection optical mirror 62; and then according to the real mirror image seen by the simulated human eyes, the virtual image information to be displayed is subjected to position adjustment, cutting, stretching and the like, so that good combination with the real mirror image is ensured. And finally, compiling the processed virtual image information into a video signal and sending the video signal to the transparent display screen 61.
4: the transparent display screen 61 receives the virtual image information sent by the vehicle-mounted control host 3 and executes display; the real mirror image formed by the total reflection optical mirror 62 can penetrate through the transparent display screen 61 and is superimposed with the virtual image information displayed on the transparent display screen 61, thereby producing an AR display effect.
In conclusion, the rearview mirror assembly for realizing the AR function and the control method thereof provided by the invention realize augmented reality output by superposition of real world and virtual data, provide more intuitive and richer decision information for a driver, and improve driving experience.
Those of skill in the art will appreciate that the method steps described in connection with the embodiments disclosed herein may be implemented as hardware, a software module executed by a processor, or a combination of the two. The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A control method of an AR rearview mirror assembly is characterized in that the control method comprises the steps of carrying out operation processing on a monitored real-time image behind an automobile, image information of human eyes and angle information of a rearview mirror to obtain virtual image information, sending the virtual image information to a display screen on an intelligent rearview mirror assembly, and superposing the virtual image information with a real scene reflected by the intelligent rearview mirror to realize AR display;
the virtual image information obtained by the operation processing is as follows: calculating virtual image information to be displayed according to a real-time image acquired by a rear camera of the automobile; obtaining the position information of the eyes of the driver and the angle information of the rearview mirror according to the image information of the eyes, and simulating a real mirror image seen by the driver from the optical reflector; then, the virtual image information to be displayed is subjected to position adjustment, cutting and stretching treatment according to the real mirror image seen by the simulated human eyes, and is compiled into a video signal, namely the virtual image information;
the operation of the virtual image information to be displayed is as follows: the method comprises the steps that through analyzing a real-time image collected by a rear camera of an automobile, object feature points in the image are extracted by a controller, object feature point matching is carried out, and after object attributes are confirmed, corresponding virtual images are sent to a transparent display screen;
the virtual image information and the real scene reflected by the intelligent rearview mirror are superposed, so that the virtual image information on the display screen penetrates through the optical reflector and is superposed with a real mirror image seen by a driver through the optical reflector, and an AR (augmented reality) display effect is realized; the optical mirror may be a semi-transmissive optical mirror or a total reflective optical mirror.
2. An AR rearview mirror assembly is characterized by comprising an information monitoring module, a control module and an intelligent rearview mirror assembly;
the information monitoring module is used for monitoring and obtaining real-time images behind the automobile, human eye image information and rearview mirror angle information;
the control module is used for carrying out operation processing on the monitored real-time image behind the automobile, the image information of human eyes and the angle information of the rearview mirror to obtain virtual image information, sending the virtual image information to a display screen on the intelligent rearview mirror assembly, and superposing the virtual image information with a real scene reflected by the intelligent rearview mirror to realize AR display;
the intelligent rearview mirror assembly is used for superposing the virtual image information and the real scene reflected by the rearview mirror so as to realize AR display;
the virtual image information obtained by the operation processing is as follows: calculating virtual image information to be displayed according to a real-time image acquired by a rear camera of the automobile; obtaining the position information of human eyes of a driver and the angle information of a rearview mirror according to the image information of the human eyes, and simulating a real mirror image seen by the driver from an optical reflector; then, the virtual image information to be displayed is subjected to position adjustment, cutting and stretching treatment according to the real mirror image seen by the simulated human eyes, and is compiled into a video signal, namely the virtual image information;
the operation of the virtual image information to be displayed is as follows: the method comprises the steps that through analyzing a real-time image collected by a rear camera of an automobile, object feature points in the image are extracted by a controller, object feature point matching is carried out, and after object attributes are confirmed, corresponding virtual images are sent to a transparent display screen;
the virtual image information and the real scene reflected by the intelligent rearview mirror are superposed, so that the virtual image information on the display screen penetrates through the optical reflector and is superposed with a real mirror image seen by a driver through the optical reflector, and an AR (augmented reality) display effect is realized; the optical mirror may be a semi-transmissive optical mirror or a total reflective optical mirror.
3. The AR rearview mirror assembly of claim 2, wherein said information monitoring module comprises a human eye monitoring camera, a driving rearview camera and a gyroscope for respectively acquiring human eye image information, real-time rear view of the automobile and rearview mirror angle information.
4. The AR rearview mirror assembly of claim 2, wherein said control module employs an on-board host control.
5. The AR rearview mirror assembly of claim 2, wherein said mirror assembly includes a display screen and an optical mirror positioned in front of said display screen, wherein virtual image information on said display screen can pass through said optical mirror and superimpose said virtual image information on a real image of a driver looking through said optical mirror.
6. The AR rearview mirror assembly of claim 2, wherein said optical mirror may be a semi-transmissive optical mirror or a total reflective optical mirror; the display screen can be a TFT-LCD, an OLED, an LED, a QLED, a Mini-LED, a Micro-LED and the like.
7. The AR rearview mirror assembly of claim 2, wherein the vehicle-mounted control host can be a stand-alone vehicle-mounted host or other integrated hosts, such as a meter host and a central entertainment host.
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| CN113701773B (en) * | 2021-08-16 | 2023-07-18 | 深蓝汽车科技有限公司 | ARHUD navigation curve indication method and system based on lane line equation |
| WO2023130056A1 (en) * | 2021-12-30 | 2023-07-06 | Gentex Corporation | Rearview assembly |
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| CN203793213U (en) * | 2014-03-10 | 2014-08-27 | 北京汽车研究总院有限公司 | Rearview mirror assembly for automobile |
| CN104590130A (en) * | 2015-01-06 | 2015-05-06 | 上海交通大学 | Rearview mirror self-adaptive adjustment method based on image identification |
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| CN106494310A (en) * | 2016-10-27 | 2017-03-15 | 上海碧虎网络科技有限公司 | A kind of Vehicular virtual transparent image display packing and display system |
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| CN107719235A (en) * | 2017-09-30 | 2018-02-23 | 京东方科技集团股份有限公司 | A kind of rearview mirror, in-vehicle display system and steer |
| CN108162859A (en) * | 2018-01-05 | 2018-06-15 | 京东方科技集团股份有限公司 | Vehicle mirrors and method for displaying image, vehicle and storage medium |
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