CN105216715A - A kind of motorist vision assists enhancing system - Google Patents
A kind of motorist vision assists enhancing system Download PDFInfo
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- CN105216715A CN105216715A CN201510669050.3A CN201510669050A CN105216715A CN 105216715 A CN105216715 A CN 105216715A CN 201510669050 A CN201510669050 A CN 201510669050A CN 105216715 A CN105216715 A CN 105216715A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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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
- B60R2300/802—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 and displaying vehicle exterior blind spot views
- B60R2300/8026—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 and displaying vehicle exterior blind spot views in addition to a rear-view mirror system
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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
- B60R2300/8053—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 bad weather conditions or night vision
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- Closed-Circuit Television Systems (AREA)
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Abstract
The invention discloses a kind of motorist vision and assist enhancing system, comprising: image capture module: for gathering picture signal, and the picture signal of collection is converted to data image signal, then store data image signal; Image processing module: for carrying out Images uniting and image enhaucament to data image signal, is then transformed into vision signal by the data image signal after process Images uniting and image enhaucament; Video Output Modules: for exporting described vision signal; Video display module: for showing the vision signal that described Video Output Modules exports.Structure of the present invention is simple, image definition is high, recovery effect is good, easy to use, low cost and other advantages, the object that in environment, image correction strengthens can be realized preferably, under various severe weather conditions, the good driving visual field and road map picture can be provided to chaufeur.
Description
Technical field
The present invention relates to image digitazation technology, Image Information Processing technology and graphicinformation Transfer Technology, specifically a kind of hommization, the motorist vision with image enhancement functions assists enhancing system.
Background technology
Along with propagating its belief on a large scale of China's resource-hungry economy in earlier stage, while economic development, great destruction is caused to the ecology environment of China, various extreme weather (as: weather condition such as haze, mist) gets married normal potluck, and these current many driving-activities caused all occur in harsh environment.The limited view that extreme weather causes, decrease the stress reaction time of steerman, this causes great hidden danger to traffic safety.Meanwhile, chaufeur is sitting in operator's compartment can only see limited external environment condition by rotary head and health, causes advancing at automobile and all there is a lot of blind spot in reversing process.Especially for thing or the people of the more inclined obstacle of some angles or small volume, often cannot see and occur collision case.
Current many bicycle recording apparatus shooting effect when weather condition is good is more clear, but photographic effect becomes fuzzyyer when weather condition is more severe, can produce more serious distortion and information dropout time serious.Meanwhile, atrocious weather condition also creates larger impact to the performance of camera system and stability.And existing certain methods, as: a kind of driver assistance system that CadillacDeVille provides, military " night vision " are adapted at the object detecting vehicle front night; What A Ke Meinaleizi, SVR Gu Teta, M Te Lakewei proposed utilizes image enhaucament to improve the method and system etc. of vehicle safety; They or various environment (describe in further detail this system in the document " DeVilleBecomesFirstCarToOfferSafetyBenefitsOfNightVision " on http://www.gm.com/company/gmability/safety/crasheeavoidance/new features/leightvision.html) can not be adapted to completely; Or imaging effect can not meet current demand very well.Publication number is the drive assist system that the patent of CN1921621A proposes a kind of panorama visible, but this system only provides the large field-of-view image outside car, does not strengthen image, causes this system cannot meet driving demand under atrocious weather condition.
Meanwhile, the display mode of existing vehicle-mounted auxiliary driving device, or adopt screen display, or adopt HUD; These designs make chaufeur while concern driving road-condition, also will bow and check instrument screen, within the reaction time of human body reflex arc, disperse the attention of chaufeur, very likely occurred safety misadventure, there is certain potential safety hazard.
For these problems, need to design a kind of system: larger chaufeur visual angle can be obtained when taking, evading blind area; And simultaneously can the actv. impact that suppresses weather condition to be brought to photographic effect, and can the image of degenerating by weather interference photographed be revised, degraded image correction is strengthened to situation more clearly, make under atrocious weather condition, this camera system still can keep good stability and reliability; The more important thing is: change the mode that vehicle-mounted image enhaucament monitored control system assists driving, reduce the security risk of driver.
Summary of the invention
Technical matters to be solved by this invention is, not enough for prior art, provides a kind of motorist vision to assist enhancing system.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of motorist vision assists enhancing system, comprising:
Image capture module: for gathering picture signal, and the picture signal of collection is converted to data image signal, then store data image signal;
Image processing module: for carrying out row-coordinate coding and image enhaucament to data image signal, is then transformed into vision signal by the data image signal after process;
Video Output Modules: for exporting described vision signal;
Video display module: for measuring driver head's angle of inclination, determine left eye viewing area and right eye viewing area, and according to the pixel of image capture module and described left eye viewing area, right eye viewing area, calculate the vision signal columns needed for respective angles region, and export vision signal corresponding to this columns on projection arrangement.
Described image capture module comprises:
Shooting head group: comprise multiple camera being arranged on external automobile body corner, the picture signal of described camera collection automobile surrounding;
Multiple analog-digital commutator: each analog-digital commutator is connected with a described camera; For carrying out digitized processing to the picture signal of shooting head group collection, obtain data image signal;
Data memory: for storing described data image signal.
Described camera is the infrared camera with night vision function, can gather coloured image, the normal visual field of good reproduction driver, under the environment that brightness is lower, also can normally work.
Described image processing module comprises:
Treater: carry out cutting to the overlapping region of the picture signal of described camera collection, then synthesizes the complete vision image at vehicle front and rear by the picture signal after cutting, monitor for 180 degree that realize headstock and the tailstock without dead angle;
Video source modeling module: enhancing process is carried out to described complete vision image.
Described video display module comprises lens body, described lens body is provided with the video signal receiver for receiving the vision signal that described visual-signal transmitter sends, for showing the image display device of the vision signal that described video signal receiver sends.Described lens body is provided with geometrical clamp.This video display module is convenient for carrying.
Described left eye viewing area refers to driver head's initial position+angle of inclination for starting point, region, 94 degree, left and region, 62 degree, right; Right eye viewing area refers to driver head's initial position+angle of inclination for starting point, the region of 62 degree, left and 94 degree, right.
Compared with prior art, the beneficial effect that the present invention has is: structure of the present invention is simple, image definition is high, recovery effect is good, easy to use, low cost and other advantages, the object that in environment, image correction strengthens can be realized preferably, under various severe weather conditions, the good driving visual field and road map picture can be provided to chaufeur.
Accompanying drawing explanation
Fig. 1 is system chart of the present invention;
Fig. 2 is working-flow figure of the present invention;
Fig. 3 is the birds-eye view of the vehicle in conjunction with one embodiment of the present of invention;
Fig. 4 is image display example of the present invention and principle thereof.
Detailed description of the invention
As depicted in figs. 1 and 2, the picture signal of camera collection of the present invention converts data image signal to through analog-digital commutator, is stored in data memory; Then flow to image processing module by data-interface, image processing module is revised image and is strengthened, and the restored image obtained is transformed into vision signal, is launched by vision signal transmitter module, finally receives display in image display.The component part of this system has image capture module, image processing module, Video Output Modules and video display module, and wherein image capture module comprises combination shot head group, analog-digital commutator, data memory.
The performance perameter of the camera that the present invention adopts is selected according to the size of assisted automobile and the model of automobile, to ensure within sweep of the eye without dead angle.A camera is respectively placed at the two ends of automobile head and the tailstock, and then the different area of visual field of each camera head monitor automobile carry out digitized processing to the video image that camera is caught, and be stored in data memory.The image taken the shooting head group of headstock and the tailstock by image processing module synthesizes the complete vision image at vehicle front and rear by program and algorithm, monitor for 180 degree that realize headstock and the tailstock without dead angle.
The camera that the present invention adopts can gather coloured image, the normal visual field of good reproduction driver.
The camera that the present invention adopts is the infrared camera with night vision function, under the environment that brightness is lower, and work that also can be good.
The function of the image processing module in the present invention comprises row-coordinate coding and image enhaucament.For ensureing the real-time treatment effeciency of system, employing ARM is core processor, by coordinating of ARM and Images uniting algorithm, and carry out cutting according to the position of camera, angles, the size of automobile and the overlapping region of the data such as model to the multiple view data collected of automobile, synthesize panoramic picture, the image of synthesis is sent to video image enhancement device and does correction enhancing process.
Images uniting algorithm in the present invention, do not need to carry out multiprocessing to image, only according to data such as the position of the visual angle of camera, camera, angles, the size of automobile and the models of automobile, centered by the photographic images of one of them pick up camera, the image that another one auxiliary camera is taken is carried out cutting synthesis, obtains composograph; The composograph synthesized centered by a pick up camera so significantly can not be out of shape at left and right sides image as the image photographed with wide angle cameras.Most image processing softwares on the market can carry out relevant treatment in good condition.
Image enchancing method in the present invention can adopt that existing recovery effect is good, the algorithm for image enhancement of technology maturation or image intensifier on the market.At present, very deep to the research of algorithm for image enhancement, obtaining the good product of recovery effect also has a lot (if publication number is the image intensifier device of CN101989350A; For another example video booster of working out of the company such as Beijing Cloud Accelerate Information Technology Co., Ltd. etc.).
Camera is arranged on car body corner, collects the monitoring image of automobile surrounding.
Fig. 3 and the camera installation way being an embodiment of the present invention.In order to make the camera a being positioned at automobile corner, b, c, the object of the feasible region monitoring that d energy is intact, the position of installing according to size and the model adjustment camera of automobile and angle, and by after the information digitalizations such as the Viewing-angle information of camera, installation site, angle stored in data processing software, as the supplementary of Images uniting.Meanwhile, for ensureing system all weather operation, the camera with the coloured image imaging of infrared night viewing function is adopted.The analog video data that camera acquisition arrives, convert digital video signal to by analog-digital commutator, digital video signal cushions through FIFO, is finally stored in data memory.This modulus device adopts the video decoding chip of high sampling rate, and data memory adopts dual-port memory bank, and its one end connecting die analog-to-digital conversion apparatus, stores real-time camera original image information; The other end connects the components A RM carrying out digital image information process, ensure that ARM does not affect the collection of graphicinformation yet when processing original image information.
As shown in Figure 3,4 cameras divide into four parts the area of visual field at vehicle front and rear, while ensure that the visual field, also there is the overlay region in the visual field.Here we adopt ARM to be core processor, ARM and relevant optimization process software is utilized to carry out cutting to overlapping region, and in conjunction with the perspective data of camera, the position of camera, angles, the data such as the size of automobile and the model of automobile, by the synthesis process of software, generate vehicle front or the complete image of 180 degree, rear without dead angle.
As shown in Figure 1, the model that we adopt Beijing Cloud Accelerate Information Technology Co., Ltd. to produce in video display module is the cloud accelerating video enhancer of CA-YM001.Cloud accelerating video enhancer adopts proprietary hardware accelerator and distinctive algorithm for image enhancement to carry out correction enhancing process to image, the impact because inclement weather causes original image can be reduced, difference in expanded view picture between different objects feature, on purpose strengthen entirety or the local feature of image, also original image realistic colour, improve contrast ratio, the visibility of image, thus improve picture quality, strengthen interpretation and the recognition effect of image, give full play to the usefulness of video monitoring, promote the benefit of monitored control system.Processing speed 25 frame of video image is per second to 30 frames, and system delay 1 ~ 2 millisecond, meets system and actual requirement.
Adopt the visual-signal transmitter of the special PAT-226 of Bai Qi in Video Output Modules, ensure that and receive the vision signal after accomplishing enhancing within the scope of 150m.This visual-signal transmitter has two signal input interfaces, the switching back and forth of the vision signal that can strengthen in the correction at vehicle front and rear, ensures stability and the real-time of signal.
As shown in Figure 4, image display comprises video signal receiver and image display device.Here video signal receiver adopts the video signal receiver that special PAT-226 is supporting with Bai Qi, and image display we adopt the monolithic DLP optical projection system of TIX.DLP chip is state-of-the-art light shutter device in the world till the present, containing 2,000,000 regularly arranged mini microscopes be hinged.Each microscopical size is only equivalent to 1/5th of hairline.White light produces red, green, blue by colour wheel filter, and order is got on the surface of DMD.The projection time of microscope switch and " opening " or " pass ", comes tuning according to chroma-luminance.The color projected continuously mixes by the organs of vision of people, so just can see full-colour image.The principle display that the image that last DLP optical projection system produces projects according to optical reflection.The light sent by DLP optical projection system is thrown on one piece of radiation shield, then be refracted to human eyeball by one piece of convex lens, realize so-called " one-level amplification ", the virtual screen that formation one is enough large before human eye, show the restored image after revising, strengthening.
Claims (10)
1. motorist vision assists an enhancing system, it is characterized in that, comprising:
Image capture module: for gathering the picture signal of automobile surrounding, and the picture signal of collection being converted to data image signal, then storing data image signal;
Image processing module: for carrying out row-coordinate coding and image enhaucament to data image signal, is then transformed into vision signal by the data image signal after process;
Video Output Modules: for exporting described vision signal;
Video display module: for measuring driver head's angle of inclination, determine left eye viewing area and right eye viewing area, and according to the pixel of image capture module and described left eye viewing area, right eye viewing area, calculate the vision signal columns needed for respective angles region, and export vision signal corresponding to this columns on projection arrangement.
2. motorist vision according to claim 1 assists enhancing system, it is characterized in that, described image capture module comprises:
Shooting head group: comprise multiple camera being arranged on external automobile body corner, the picture signal of described camera collection automobile surrounding;
Multiple analog-digital commutator: each analog-digital commutator is connected with a described camera; For carrying out digitized processing to the picture signal of shooting head group collection, obtain data image signal;
Data memory: for storing described data image signal.
3. motorist vision according to claim 2 assists enhancing system, it is characterized in that, described camera is the infrared camera with night vision function.
4. motorist vision according to claim 2 assists enhancing system, it is characterized in that, described image processing module comprises:
Treater: carry out cutting to the overlapping region of the picture signal of described camera collection, then synthesizes the complete vision image at vehicle front and rear by the picture signal after cutting, monitor for 180 degree that realize headstock and the tailstock without dead angle;
Video source modeling module: enhancing process is carried out to described complete vision image.
5. motorist vision according to claim 4 assists enhancing system, it is characterized in that, described video source modeling module adopts CA-YM001 cloud accelerating video enhancer.
6. motorist vision according to claim 1 assists enhancing system, it is characterized in that, described Video Output Modules adopts visual-signal transmitter.
7. motorist vision according to claim 6 assists enhancing system, it is characterized in that, described video display module comprises lens body, described lens body is provided with for receive described visual-signal transmitter send vision signal video signal receiver, for show described video signal receiver send vision signal image display device, for measuring the gyroscope of driver head's angle of inclination.
8. motorist vision according to claim 7 assists enhancing system, it is characterized in that, described video signal receiver adopts the visual-signal transmitter of the special PAT-226 of Bai Qi.
9. motorist vision according to claim 7 assists enhancing system, it is characterized in that, described image display adopts monolithic DLP optical projection system.
10. motorist vision according to claim 7 assists enhancing system, it is characterized in that, described left eye viewing area refers to driver head's initial position+angle of inclination for starting point, region, 94 degree, left and region, 62 degree, right; Right eye viewing area refers to driver head's initial position+angle of inclination for starting point, the region of 62 degree, left and 94 degree, right.
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| CN110070504A (en) * | 2019-04-12 | 2019-07-30 | 海洁 | A kind of on-vehicle image processing device, workflow and automobile |
| CN111488055A (en) * | 2019-01-28 | 2020-08-04 | 富顶精密组件（深圳）有限公司 | Automobile-used augmented reality glasses auxiliary device |
| CN112606832A (en) * | 2020-12-18 | 2021-04-06 | 芜湖雄狮汽车科技有限公司 | Intelligent auxiliary vision system for vehicle |
| CN114999225A (en) * | 2022-05-13 | 2022-09-02 | 海信集团控股股份有限公司 | Information display method for road object and vehicle |
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