CN103182985B - Utilize safety device of vehicle and the vehicle safety control method of image processing apparatus - Google Patents

Utilize safety device of vehicle and the vehicle safety control method of image processing apparatus Download PDF

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Publication number
CN103182985B
CN103182985B CN201110461398.5A CN201110461398A CN103182985B CN 103182985 B CN103182985 B CN 103182985B CN 201110461398 A CN201110461398 A CN 201110461398A CN 103182985 B CN103182985 B CN 103182985B
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image
gray value
vehicle
processing apparatus
region
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CN103182985A (en
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王振
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Vitesco Automotive Changchun Co Ltd
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Continental Automotive GmbH
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Abstract

The present invention relates to the use of safety device of vehicle and the vehicle safety control method of image processing apparatus.Safety device of vehicle includes vehicle-mounted image collecting device (100), image processing apparatus (200) and image display device (300), image collecting device (100) communicates with image processing apparatus (200) connection, and image processing apparatus (200) communicates with image display device (300) connection.Wherein said image processing apparatus (200) includes bright area Weakening treatment unit (210), for the high-brightness region gathered image received from image collecting device (100) is carried out Weakening treatment;And described image processing apparatus (200) will process after image send image display device (300) to for showing to driver.Also disclose the vehicle safety control method using this safety device of vehicle.

Description

Utilize safety device of vehicle and the vehicle safety control method of image processing apparatus
Technical field
Present invention relates generally to a kind of safety device of vehicle and vehicle safety control method, particularly relate to one and utilize image The safety device of vehicle of processing means and vehicle safety control method.
Background technology
Vehicle, when night running, generally uses high beam and dipped headlights to irradiate road surface, improves driver's night running Time visuality to surrounding, it is ensured that driving at night safety.But being open at when meeting at night of high beam often causes Interference to oncoming vehicle driver's vision, it is dazzling that intense light makes driver produce, it is impossible to see clearly road surface ahead and Object, therefore easily causes the potential safety hazard that vehicle travels, vehicle accident even can occur time serious when meeting at night.
For a long time, those skilled in the art are researching and developing always and are exploring the system for improving vehicle at night driving safety Or device.Had been proposed that a kind of device utilizing polarized glass to prevent glare during night vehicle meeting.But polarized glass cost Angle between height, and two polaroids arranges and properly could must effectively weaken light intensity, this would tend to occur by Orient incorrect in polaroid and cause this failure of apparatus, thus driver's intense light at the moment can not be alleviated.
Therefore, it has been required for a kind of effective and reliable safety device of vehicle and method all the time, has been particularly useful for preventing The high beam that during vehicle travel at night, send a car in opposite makes glare of driver cause and cannot see vehicle front situation clearly.
Summary of the invention
Therefore, the deficiency existed for prior art, the present inventor is desirable to provide a kind of car with image processing apparatus Safety device and method.
In a first aspect of the present invention, it is provided that a kind of safety device of vehicle, described safety device of vehicle includes vehicle-mounted Image collecting device, image processing apparatus and image display device, image collecting device connects with image processing apparatus communication, Image processing apparatus connects with image display device communication, and wherein said image processing apparatus includes bright area Weakening treatment list Unit, for carrying out Weakening treatment to the high-brightness region gathered from image collecting device reception in image;And described image Image after processing means will process sends device used for image display in showing to driver.
Preferably, bright area Weakening treatment cell location is, determines the high-brightness region in received image, and by institute State the luminance-value reduction of high-brightness region.
In further aspect of the present invention, bright area Weakening treatment cell location is, it is judged that the picture in the image received Whether the gray value of vegetarian refreshments is more than the first predetermined gray value;If it is determined that the gray value of the pixel in described image is more than first Predetermined gray value, changes into the second predetermined gray value by the gray value of described pixel, and wherein the second predetermined gray value is less than the One predetermined gray value.
In further aspect of the present invention, bright area Weakening treatment cell location is, it is judged that in the image received Whether the average gray value in individual region is more than the first predetermined gray value;If it is determined that the average ash in the described region in described image The average gray value in described region, more than the first predetermined gray value, is changed into the second predetermined gray value by angle value, and wherein second is pre- Determine gray value less than the first predetermined gray value.
Preferably, image collector is set to video camera, and is arranged on the top of vehicle front window.
Preferably, described image processing apparatus also includes denoising unit, smoothing processing unit, Nogata processing unit In at least one.
In a second aspect of the present invention, it is provided that a kind of vehicle safety control method, the method comprises the steps: to obtain The image of vehicle front road conditions;Determine the high-brightness region in described image;Described image is carried out Weakening treatment so that by institute State the luminance-value reduction of high-brightness region in image;And the image after processing is shown to driver.
Preferably, determine that the step of the high-brightness region in described image includes: judge putting down of the region in described image All whether gray value is more than the first predetermined gray value, if it is determined that and the average gray value in region in described image is more than the One predetermined gray value, then this region is confirmed as high-brightness region.
Preferably, the step that described image carries out Weakening treatment includes: reduced by the gray value of described high-brightness region To expected value.
The more areas of present invention application will be become more fully apparent by detailed description given below.Should manage Solve, specifically describe and specific examples is used only as explaining and understanding purpose, but should not be used to limit the scope of the present invention.
Accompanying drawing explanation
The present invention be will be more fully understood, wherein by following detailed description and drawings:
Fig. 1 shows that vehicle is provided with safety device of vehicle according to a first embodiment of the present invention.
Fig. 2 is the schematic frame of the safety device of vehicle with image processing apparatus according to a first embodiment of the present invention Figure.
Fig. 3 is the schematic frame of the safety device of vehicle with image processing apparatus according to a second embodiment of the present invention Figure.
Fig. 4 is the schematic block diagram of image processing apparatus according to an embodiment of the invention.
Fig. 5 is the flow chart of vehicle safety control method according to an embodiment of the invention.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, this is described with reference to the accompanying drawings Inventive embodiment.Wherein, identical parts use identical label.
Referring now to Fig. 1 and 2, vehicle 1 includes vehicle-mounted safety device of vehicle 10.Safety device of vehicle 10 can include figure As harvester 100, image processing apparatus 200 and image display device 300.In the present invention, when driving vehicle at night, By driver's unlocking vehicle safety device 10.The safety device of vehicle 10 of the present invention mainly provides safe driving by the following means Ensure: by being arranged on image information or the data in the image collecting device 100 collection vehicle front of vehicle front;To be gathered Image information send image processing apparatus 200 to, image processing apparatus 200 utilizes colourity, brightness or other Parameter analysis figure As the bright area caused due to opponent vehicle headlight in information or data, and correction map picture;Then revised image is passed Passing image display device 300, image display device 300 shows revised image to driver, in order to driver gets rid of The strong illumination impact of opponent vehicle headlight, it is possible to clear understand the road surface of vehicle front and/or the situation of things in time, Thus in order to ensure safe driving, provide useful help to driver.
In safety device of vehicle 10, image collecting device 100 and image processing apparatus 200 interconnect via communication line, Image processing apparatus 200 and image display device 300 also interconnect via communication line, for view data or information at them Between transmission, as shown in Figure 2.
It is anterior that image collecting device 100 is typically mounted at vehicle cab, such as, on driver's cabin front window 2, be used for obtaining Vehicle front road surface or the original image of surrounding.In the example depicted in figure 1, image collecting device 100 is arranged on vehicle The front upper place of front window 2.However, it is also contemplated that image collecting device 100 is arranged on vehicle front window near driving On the position of the person of sailing, such as, such as the upper right side of the front window 2 in Fig. 1.In one embodiment, image collecting device 100 is permissible It it is the video camera of any suitable type.
Image processing apparatus 200 receives the original image information or view data collected from image collecting device 100.? In original image, owing to the brightness that opponent vehicle front car light is too strong causes the high-brightness region in original image, especially at night Between travel in, this makes this vehicle front road surface or surrounding become more unintelligible in original image.Therefore, the present invention Image processing apparatus 200 include bright area Weakening treatment unit 210, for the part of the high brightness gathered in image being carried out Weakening treatment, in order to reduce the brightness of opposite car light in image after treatment.Due to through Weakening treatment unit 210 Corrections Division Image after reason reduces the brightness of the overly bright region that opponent vehicle car light causes, and can strengthen the brightness in other regions, therefore The road surface ahead in original image or surrounding can be largely made to be made apparent from.
Image display device 300 connects with image processing apparatus 200 via communication line, receives the image of above-mentioned process also Display it to driver.In one embodiment, image display device 300 can be arranged near the instrument board of driver's cabin, It is positioned at the front of driver, it is simple to driver checks.
As it has been described above, the image after processing is supplied to driver, as driving auxiliary display, owing to eliminating the other side's car The impact of the high light of car light, it is allowed to driver can by the image after processing more accurately, be well understood to meet at night Time surrounding and the real information on road surface.So driver can select suitable driving path according to the image after processing, Improve vehicle drive safety.
Fig. 3 shows the schematic block diagram of the safety device of vehicle 10 of second specific embodiment according to the present invention.Such as Fig. 3 Shown in, safety device of vehicle 10 can also include image storage 400, for store collection or process after image information or Data.Image storage 400 respectively can with image collecting device 100, image processing apparatus 200 and image display device 300 Connect communicatedly.It is wherein that two-way communication is connected between image storage 400 with image processing apparatus 200.Between said apparatus Communication connection can be wired or wireless.
The bright area Weakening treatment unit 210 being described more fully below in the image processing apparatus 200 according to the present invention.From Image collecting device 100 such as video camera obtains original image signal, such as RGB888 signal.The gray value of RGB888 signal When (brightness degree) is (0,0,0), the pixel in representative image is black;The gray value (brightness degree) of RGB888 signal is Time (255,255,255), the pixel in representative image is white.If assuming that the gray value of a certain pixel in image surpasses Cross the first predetermined gray value, such as (240,240,240), then it is assumed that this pixel is that opponent vehicle headlight causes Cross bright spot.Therefore, the average gray value in image is more than the continuum of the first predetermined gray value, it is believed that before being opponent vehicle The overly bright region that headlight causes.According to above-mentioned determination methods, bright area Weakening treatment unit 210 connects from image collecting device 100 Receive RGB888 signal, based on the overly bright region in gray value identification original image, then reduce the continuous print identified and cross clear zone The gray value in territory such as average gray value, thus weaken the hi-lite in original image, weaken the brightness shadow of opposite car light Ring.The gray value more than the overly bright region of the first predetermined gray value in image can be reset to the second predetermined gray scale Value, wherein the second predetermined gray value is less than the first predetermined gray value.Such as, can by image more than the first predetermined gray value The gray value of overly bright region is reduced to original part.Alternatively, it is also possible to reducing this sheet continuum Gray value while, improve the gray value beyond the continuum in image.Process via bright area Weakening treatment unit 210 After image in, the overly bright region caused due to opponent vehicle headlight is weakened, it is possible to during nighttime driving for drive Member provides effective traffic information.
In yet another embodiment of the present invention, in addition to spot zone Weakening treatment unit 210, image processing apparatus 200 can also include at least one in denoising unit 220, smoothing processing unit 230, Nogata processing unit 240.Figure The block diagram of 4 units showing the image processing apparatus 200 according to a specific embodiment.In this embodiment, former Beginning image information sequentially passes through denoising unit 220, smoothing processing unit 230, spot zone Weakening treatment unit 210 and straight Sideization processing unit 240 processes, to obtain the vehicle front image handled well.
Fig. 5 shows the flow chart of the vehicle safety control method corresponding to embodiment illustrated in fig. 4.Method starts from step S10.In step S20, utilize image collecting device 100, obtain the image information of vehicle front from video camera in real time.Then side Method order performs step S30-S60, and these steps all complete in the image processing apparatus 200 shown in Fig. 4.Wherein in step In S30, acquired image is carried out denoising, such as, can use wavelet threshold denoising;In step S40, image is carried out Smoothing processing, such as by Gauss or meansigma methods smoothing processing;In step S50, higher for the brightness in the image after smooth Part carries out Weakening treatment, thus reduces the brightness of opposite car light;In step S60, the image after weakening is carried out rectangular histogram Shape equalization processing.Afterwards, method proceeds to step S70, and the image information handled well is sent to car by image processing apparatus 200 Carry display device 300, provide useful information to driver.
Additionally, in the present invention, image processing apparatus 200 can be configured to single modular unit, it is also possible to vehicle Control device (such as electronic-controlled installation) to integrate.Image display device 300 can also be configured to single module list Unit, or share existing vehicle display.
In order to reduce cost, it is possible to use the existing hardware system of automobile, it is achieved the vehicle-mounted vehicle safety dress of the present invention Put.Such as, for existing automobile, above general automobile, it is equipped with car entertainment sound system.This vehicle entertainment system bag Including navigation module (or video processing module) and display, wherein the CPU of navigation module can process multi-path video stream (i.e. image Information).It is contemplated that the safety device of vehicle of the present invention and existing car entertainment sound system share a part of hardware. It is to say, above-mentioned image processing apparatus is desirably integrated in the navigation module of existing car entertainment sound system, i.e. led by this The CPU of model plane block performs the image processing program of the present invention;Above-mentioned image display device 300 can omit, and directly uses existing There is the display of car entertainment sound system.So, by utilizing existing car entertainment sound system, the vehicle peace of the present invention Full device is very easy to realize, and can be to be realized with a low cost.Only at vehicle front, one front-facing camera need to be installed, by preposition Camera collection to image be transported to car entertainment sound system, be then delivered to navigation module CPU and scheme as above As processing, finally proceed to the display of car entertainment sound system, it is achieved to the final display of driver.
The safety device of vehicle of the present invention at least has the advantage that
-effective a driving can be provided when car Facing Movement at night two to guide to driver, it is ensured that driver's Safety;
-it addition, because the image gathering or processing can be stored in memory element, the image information of these storages is available for Scene reproduction and accident analysis etc. use.
Although for the ease of being more fully understood that the present invention, according to preferred embodiment, invention has been described, but Being to be to be understood that in the case of without departing substantially from the principle of the present invention, the present invention can implement in a multitude of different ways.Therefore, this Bright be understood to include all possible in the case of without departing substantially from the scope of the present invention the most defined in the appended claims The embodiment implemented and deformation.

Claims (7)

1. a safety device of vehicle, it is characterised in that described safety device of vehicle includes vehicle-mounted image collecting device (100), image processing apparatus (200) and image display device (300), image collecting device (100) and image processing apparatus (200) communication connection, image processing apparatus (200) communicates with image display device (300) connection,
Wherein said image processing apparatus (200) includes bright area Weakening treatment unit (210), and being used for will be from image collecting device (100) high-brightness region gathered in image received carries out Weakening treatment;And
Image after wherein said image processing apparatus (200) will process sends image display device (300) to for driving Member's display,
Wherein said bright area Weakening treatment unit (210) is configured to, and determines the high-brightness region in received image, and will The luminance-value reduction of described high-brightness region, concrete mode is one of the following two kinds:
Whether the gray value of the pixel in the image that judgement is received is more than the first predetermined gray value;If it is determined that described image In the gray value of pixel more than the first predetermined gray value, the gray value of described pixel is changed into the second predetermined gray scale Value, wherein the second predetermined gray value is less than the first predetermined gray value, or
Whether the average gray value in a region in the image that judgement is received is more than the first predetermined gray value;If it is determined that State the average gray value in described region in image more than the first predetermined gray value, the average gray value in described region is changed into Second predetermined gray value, wherein the second predetermined gray value is less than the first predetermined gray value.
Device the most according to claim 1, it is characterised in that described safety device of vehicle also includes image memory device (400), its respectively with image collecting device (100), image processing apparatus (200) and image display device (300) communication link Logical.
Device the most according to claim 1, it is characterised in that described image processing apparatus (200) also includes denoising At least one in unit (220), smoothing processing unit (230), Nogata processing unit (240).
Device the most according to claim 1, it is characterised in that image collecting device (100) is video camera, and is arranged on The top of vehicle front window (2);Image collecting device (100) is for obtaining the image of vehicle front road conditions.
Device the most according to claim 1, it is characterised in that described safety device of vehicle (10) and existing car entertainment Together, this car entertainment information system includes video processing module and display, wherein image procossing dress to integration of information system Put (200) to be integrated in this video processing module, and image display device (300) is shared with this display.
6. a vehicle safety control method, it is characterised in that the method comprises the steps:
Obtain the image of vehicle front road conditions;
Determine the high-brightness region in described image;
Described image is carried out Weakening treatment so that by the luminance-value reduction of the high-brightness region in described image;And
Image after processing is shown to driver;
Wherein it is determined that the step of the high-brightness region in described image includes: judge the average gray in region in described image Value whether more than the first predetermined gray value, if it is determined that and the average gray value in region in described image predetermined more than first Gray value, then this region is confirmed as high-brightness region.
Method the most according to claim 6, it is characterised in that the step that described image carries out Weakening treatment includes: will The gray value of described high-brightness region is reduced to expected value.
CN201110461398.5A 2011-12-27 2011-12-27 Utilize safety device of vehicle and the vehicle safety control method of image processing apparatus Active CN103182985B (en)

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CN106657903A (en) * 2016-12-12 2017-05-10 刘波 Wearable anti-strong light device and anti-strong light method thereof
CN110933323B (en) * 2018-09-19 2021-06-22 深圳市航盛电子股份有限公司 Vehicle-mounted video display device and display method
CN110341602A (en) * 2019-07-05 2019-10-18 李鸿宇 A kind of automobile front and rear windshield auxiliary display system and display methods
CN111762090B (en) * 2019-11-05 2021-11-23 扬州市生态科技新城杭集中小企业服务中心有限公司 High beam real-time reminding platform, method and storage medium

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Patentee after: Shibeite automotive electronics (Changchun) Co., Ltd.

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