CN102789693B - A kind of road sign automatic identifying method and vehicle-mounted recognition device - Google Patents
A kind of road sign automatic identifying method and vehicle-mounted recognition device Download PDFInfo
- Publication number
- CN102789693B CN102789693B CN201210283732.7A CN201210283732A CN102789693B CN 102789693 B CN102789693 B CN 102789693B CN 201210283732 A CN201210283732 A CN 201210283732A CN 102789693 B CN102789693 B CN 102789693B
- Authority
- CN
- China
- Prior art keywords
- image
- road sign
- information
- processing engine
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Traffic Control Systems (AREA)
- Image Processing (AREA)
Abstract
The invention provides a kind of road sign automatic identifying method and vehicle-mounted recognition device, this method provide road sign recognition methods, this device realizes the voice broadcast function of road and traffic sign plates.The present invention, by automatically identifying road sign and adopting speech form to remind driver to note, can greatly reduce the wrong chance that driver identifies road sign.
Description
Technical field
The present invention relates to road sign automatic identification field, particularly when driving, a kind of car-mounted device automatically identify road sign and voice broadcast with a kind of road sign automatic identifying method of pointing out driver and vehicle-mounted recognition device.
Background technology
Road signs are graphical symbols of display traffic law and road information, it can make traffic law obtain image, concrete, simple and clear expression, also have expressed the content be difficult to by text description, in order to the direction of traffic that regulates the traffic, indicates to ensure the facility of the coast is clear and traffic safety simultaneously.Be applicable to highways and streets and all accommodation roads, have the character of decree, vehicle, pedestrian must observe.Main Function is 1, provides road information, plays the effect of road language; 2, command & control traffic, ensures traffic safety; 3, show the way guiding, improves driving efficiency; 4, for vehicle supervision department provides enforce foundation.At present, road and traffic sign plates mainly contains main mark and the large class of auxiliary sign two, and main mark comprises following several types:
(1) warning notice: warning vehicle, pedestrian notes the mark of road ahead location at risk.
(2) prohibitory sign: the mark forbidding or limit vehicle, certain traffic behavior of pedestrian.
(3) Warning Mark: the mark that instruction vehicle, pedestrian advance.
(4) fingerpost: the mark transmitting road direction, place, range information.
(5) tourist district's mark: the mark that direction, tourist attractions, distance are provided.
(6) road construction safety notice: notice the mark that road construction district is current.
Under auxiliary sign is attached to main mark, play the mark of aid illustration effect.
At present, the whole world is annual, and because the property loss of vehicle collision institute ten million is in hundred billion yuan, personnel death is about million people, and the traffic hazard of 70-90% be human factor necessarily, wherein 56% is that driver's identification error causes, and wherein just comprises the identification to road sign.Therefore, need to strengthen the identification to road sign.
Summary of the invention
Object of the present invention is just to provide a kind of road sign and automatically knows method for distinguishing and vehicle-mounted recognition device.
First the invention provides a kind of road sign and automatically know method for distinguishing, comprise the following steps:
The image information of A, acquisition road sign;
B, the image information of road sign is delivered image processing engine, image processing engine by algorithm identification graph image feature, will return image representative meaning in the road sign of identification and returns the text description identified;
C, voice reminder is carried out to the text description content of road sign.
Further, a kind of road sign on is known in method for distinguishing automatically: also comprise in described step C, the text description content of road sign and the positional information of current location are preserved.
Further, a kind of road sign on is known in method for distinguishing automatically: described positional information is GPS information.
Further, a kind of road sign on is known in method for distinguishing automatically: before described steps A, further comprising the steps of:
A01, obtain local gps signal, and will the scanning text description content of road sign of preserving and the positional information of current location, if preserve the text description content of the road sign on this ground, turn to step C, otherwise turn to steps A.
The present invention also provides a kind of road sign according to the claims automatically to know the vehicle-mounted recognition device of method for distinguishing, comprise microprocessor, obtain the image acquiring device of the image information of road sign, image information is carried out the image processing engine that process forms the word content of road sign, the text description content of road sign is carried out to the sound broadcasting device of voice reminder; Described image acquiring device, image processing engine, sound broadcasting device are connected with described microprocessor respectively.
Further, in above-mentioned vehicle-mounted recognition device: also comprise vehicle GPS, memory storage; Described vehicle GPS, memory storage are connected with described microprocessor respectively.
The present invention, by automatically identifying road sign and adopting speech form to remind driver to note, can greatly reduce the wrong chance that driver identifies road sign.
Below by with specific embodiments and the drawings, the present invention is further detailed.
Accompanying drawing explanation
Accompanying drawing 1 is process flow diagram of the present invention.
Accompanying drawing 2 is vehicle-mounted recognition device block diagrams of the present invention.
Accompanying drawing 3 is embodiment of the present invention applicating flow charts.
Embodiment
The present embodiment a kind ofly has the vehicle-mounted recognition device that road sign knows method for distinguishing automatically, as shown in Figure 2, this device comprises the image acquiring device of the image information obtaining road sign, image information is carried out the image processing engine that process forms the word content of road sign, the text description content of road sign is carried out to the sound broadcasting device of voice reminder, vehicle GPS, memory storage and microprocessor; Image acquiring device, image processing engine, sound broadcasting device connect successively.Image acquiring device, image processing engine, sound broadcasting device, vehicle GPS, memory storage are connected.
In the present embodiment, the image acquiring device obtaining the image information of road sign can be mounted in the video camera of vehicle outer side, generally adopt ccd video camera at present, the image processing engine that image information carries out the word content of process formation road sign is a lot of in the market, in the present embodiment, image processing engine, sound broadcasting device, vehicle GPS, memory storage can be adopted the resource of automatic navigator inside.
At present, according to the regulation of road signs national standard, road and traffic sign plates is divided into 4 classes kind more than 200:
The first kind is warning road and traffic sign plates: shape is equilateral triangle, and color is the yellow end, black surround, black pattern, and this road and traffic sign plates stands on Dangerous Place 20-50m at a distance.
Equations of The Second Kind is alert order property road and traffic sign plates: shape is for circular, and color is the red limit of white background, red bar, black pattern; This road and traffic sign plates is arranged on forbids or limits current crossing or place.
3rd class is indicative road and traffic sign plates: shape is for circular, and color is the white pattern in the blue end, provides instructional information to vehicle or advancing of pedestrian.
4th class refers to road road and traffic sign plates: in order to indicate road direction, place, distance etc., be generally rectangle or square, and be the white pattern in the blue end for Ordinary Rd, for highway is the white pattern in the green end.
In addition, under also having complementary road and traffic sign plates to be placed on main road and traffic sign plates, word or pattern is above had to remark additionally.
In the present embodiment, in the storer of navigating instrument, save these patterns and the word corresponding with it meaning and audio description, after the road and traffic sign plates that image acquiring device obtains, combine by the image processing engine that traffic is special the traffic mark board storehouse be kept in navigating instrument internal memory and just can identify these traffic mark boards, then the audio description signal of the traffic mark board recognized is broadcasted from sound broadcasting device.
In navigating instrument, this device course of work is as follows: as shown in Figure 1.
A01, obtain local gps signal, and will the scanning text description content of road sign of preserving and the positional information of current location, if preserve the text description content of the road sign on this ground, turn to step C, otherwise turn to steps A;
The image information of A, acquisition road sign;
B, the image information of road sign is delivered image processing engine, image processing engine by algorithm identification graph image feature, will return image representative meaning in the road sign of identification and returns the text description identified;
C, voice reminder is carried out to the text description content of road sign.
In the present embodiment, whether be about to enter special road section according to motorway guide planks voice reminder driver, effectively reduce the careless traffic hazard caused; And by identifying the service content (such as: whether have refuelling station, dining room etc.) that motorway guide planks prompting section, front can provide, reduce driver to divert one's attention when driving to find these functions, the road conditions sight binding of the GPS location of navigator record and service content also can memorize by this function, uses in order to next time.
The present invention is achieved through the following technical solutions
1, obtain graph image by the digital picture capturing device of customization, by GPU or DSP process, complete denoising, feature extraction and the operation such as compressed and decompressed.
2, will deliver image image processing engine by the pretreated graph image unit of hardware, processing engine by algorithm identification graph image feature, will return image representative meaning in the motorway guide planks of identification and returns the text description identified.
3, system carries out two class process to returning results, and carries out voice reminder according to the threshold value preset; According to setting using in current identification content with the information of stated features and the GPS information of current location stored in database as historical record.
4, management function is provided according to the historical record preserved, such as: the functions such as return visit and intelligent reminding are provided.Now, if user is provided with sensitive information (be such as provided with and treat the noon to remind me to have meal in that place) and opens intelligent reminding, so microprocessor is under system software controls, the time point left and right time at noon, go for the pictograph information of typing in historical data base and the gps positional information of its correspondence, like this when automobile has arrived position near this time, will there be the place of having a meal in next for reminding user section by software, please notice.
As can be seen from Figures 2 and 3, vehicle-mounted special camera takes road image on the way, image is through GPU or dsp chip pre-service, and due to shooting environmental more complicated in driving conditions, the technological means such as necessary image enhaucament and recovery, Iamge Segmentation and image compression are requisite; Pretreated graph image delivers identifying processing engine, identifies engine high speed processing, the graph image of process containing sensitive features pel, and non-sensitive graph image then abandons; The recognition result returned by engine according to threshold value is carried out intelligent sound and reminds identifying information simultaneously to preserve into historical data base by recognition system, and algorithm flowchart of system is shown in graph image recognition system arthmetic statement process flow diagram.
For historical data base, native system provides user can browse and edit history keeping records, and allow user to arrange whether to open intelligent reminding function, this function judges that under special scenes user may need service then to give user to remind (such as to 12:00 at noon, left and right can according to historical record, and reminding user current road segment can provide food and beverage sevice).
Claims (2)
1. road sign knows a method for distinguishing automatically, it is characterized in that, comprises the following steps:
A01, obtain local gps signal, and the text description content of road sign of scanning preservation and the positional information of current location, if preserve the text description content of the road sign on this ground or the sensitive information of user's setting, turn to step C, otherwise turn to steps A;
The image information of A, acquisition road sign;
B, the image information of road sign is delivered image processing engine, image processing engine by algorithm identification graph image feature, will return image representative meaning in the road sign of identification and returns the text description identified; In this step, only process contains the graph image of sensitive features pel, and non-sensitive graph image then abandons;
This step comprises:
B01, the digital picture capturing device passing through to customize obtain graph image, by GPU or DSP process, complete denoising, feature extraction and compressed and decompressed operation;
B02, graph and image processing engine will be delivered by the pretreated graph image unit of hardware, graph and image processing engine by algorithm identification graph image feature, will return image representative meaning in the motorway guide planks of identification and returns the text description identified;
B03, system carry out two class process to returning results, and carry out voice reminder according to the threshold value preset; According to setting using in current identification content with the information of stated features and the GPS information of current location stored in database as historical record;
C, voice reminder is carried out to the sensitive information that the text description content of road sign or user are arranged; The text description content of road sign and the positional information of current location are preserved;
The sensitive information that described user is arranged refers to that Preset Time that user is arranged carries out the information of food and beverage sevice prompting, has arrived Preset Time to the food and beverage sevice information near user reminding current location.
2. a road sign according to claim 1 knows the vehicle-mounted recognition device of method for distinguishing automatically, comprise microprocessor, it is characterized in that: the image acquiring device comprising the image information obtaining road sign, to image information carry out image enhaucament, recovery, Iamge Segmentation and image compression pretreatment unit, image information is carried out the image processing engine that process forms the word content of road sign, the sound broadcasting device of voice reminder, memory storage and vehicle GPS are carried out to the text description content of road sign; Described image acquiring device, pretreatment unit, image processing engine, sound broadcasting device, memory storage and vehicle GPS are connected with described microprocessor respectively; Described image acquiring device, pretreatment unit, image processing engine, sound broadcasting device, vehicle GPS and memory storage are automatic navigator internal resource;
Described image acquiring device is vehicle-mounted special camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210283732.7A CN102789693B (en) | 2012-08-10 | 2012-08-10 | A kind of road sign automatic identifying method and vehicle-mounted recognition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210283732.7A CN102789693B (en) | 2012-08-10 | 2012-08-10 | A kind of road sign automatic identifying method and vehicle-mounted recognition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102789693A CN102789693A (en) | 2012-11-21 |
| CN102789693B true CN102789693B (en) | 2015-09-30 |
Family
ID=47155089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210283732.7A Active CN102789693B (en) | 2012-08-10 | 2012-08-10 | A kind of road sign automatic identifying method and vehicle-mounted recognition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102789693B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065489B (en) * | 2012-12-28 | 2015-10-21 | 天津爱迪尔软件开发有限公司 | A kind of instant navigation road condition system and air navigation aid |
| CN103489323B (en) * | 2013-09-16 | 2016-07-06 | 安徽工程大学 | A kind of identification device of traffic lights |
| CN103712626A (en) * | 2014-01-09 | 2014-04-09 | 上海安吉星信息服务有限公司 | Guideboard broadcasting method for navigation system |
| GB2523351B (en) * | 2014-02-21 | 2017-05-10 | Jaguar Land Rover Ltd | Automatic recognition and prioritised output of roadside information |
| US10150473B2 (en) | 2014-08-18 | 2018-12-11 | Mobileye Vision Technologies Ltd. | Recognition and prediction of lane constraints and construction areas in navigation |
| CN104732245B (en) * | 2015-04-14 | 2017-10-10 | 万里运业股份有限公司 | For occurring identification during hazardous materials transportation car and method for early warning in front of coach |
| CN112634643B (en) * | 2015-05-29 | 2022-06-14 | 荣耀终端有限公司 | Traffic information updating method and device |
| CN106991733A (en) * | 2016-01-20 | 2017-07-28 | 上海海拉电子有限公司 | A kind of car key, parking spot monitoring system and car key operating method |
| CN105956641A (en) * | 2016-05-14 | 2016-09-21 | 李华敏 | Method for recognizing traffic sign board remotely and intelligently |
| CN106204800B (en) * | 2016-07-06 | 2018-08-07 | 福州瑞芯微电子股份有限公司 | The method, apparatus and automobile data recorder that automatic traffic landmark identification is reminded |
| CN106203335B (en) * | 2016-07-11 | 2019-05-28 | 厦门大学 | Sign board visibility evaluation method based on three-dimensional point cloud |
| CN108001388B (en) * | 2016-10-28 | 2021-07-27 | 奥迪股份公司 | Energy supplement auxiliary system and method |
| WO2018187974A1 (en) * | 2017-04-12 | 2018-10-18 | 深圳市南北汽车美容有限公司 | Road sign identification prompting method and prompting system |
| CN109558776A (en) * | 2017-09-27 | 2019-04-02 | 重庆凯泽科技股份有限公司 | The method and device detected in violation of rules and regulations by bus for station |
| CN107958415B (en) * | 2017-10-31 | 2021-07-27 | 创新先进技术有限公司 | Security information broadcasting method and device |
| CN108256493A (en) * | 2018-01-26 | 2018-07-06 | 中国电子科技集团公司第三十八研究所 | A kind of traffic scene character identification system and recognition methods based on Vehicular video |
| JP7081316B2 (en) * | 2018-06-08 | 2022-06-07 | スズキ株式会社 | Driving support device |
| WO2020113528A1 (en) * | 2018-12-06 | 2020-06-11 | 深圳市大疆创新科技有限公司 | Navigation processing method and apparatus and navigation processing device |
| CN110415299B (en) * | 2019-08-02 | 2023-02-24 | 山东大学 | Vehicle position estimation method based on set guideboard under motion constraint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245951A (en) * | 1998-08-20 | 2000-03-01 | 松下电器产业株式会社 | Road signs sensing system |
| EP1162585A1 (en) * | 2000-06-08 | 2001-12-12 | Hyundai Motor Company | System for assisting drivers to negotiate intersections |
| CN101630444A (en) * | 2009-08-06 | 2010-01-20 | 杭州六易科技有限公司 | Automatic identification warning system of vehicle-mounted traffic annunciator |
| CN201410924Y (en) * | 2009-05-27 | 2010-02-24 | 中国航空动力机械研究所 | Driving safety device |
| CN102568236A (en) * | 2010-12-08 | 2012-07-11 | 罗伯特·博世有限公司 | Method and device for recognizing road signs and comparing with road signs information |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465061A (en) * | 2007-12-21 | 2009-06-24 | 厦门雅迅网络股份有限公司 | Method and system for prompting automobile real time line using GPS technology |
| DE102010028669A1 (en) * | 2010-05-06 | 2011-11-10 | Zf Friedrichshafen Ag | Method for operating a drive train |
-
2012
- 2012-08-10 CN CN201210283732.7A patent/CN102789693B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245951A (en) * | 1998-08-20 | 2000-03-01 | 松下电器产业株式会社 | Road signs sensing system |
| EP1162585A1 (en) * | 2000-06-08 | 2001-12-12 | Hyundai Motor Company | System for assisting drivers to negotiate intersections |
| CN201410924Y (en) * | 2009-05-27 | 2010-02-24 | 中国航空动力机械研究所 | Driving safety device |
| CN101630444A (en) * | 2009-08-06 | 2010-01-20 | 杭州六易科技有限公司 | Automatic identification warning system of vehicle-mounted traffic annunciator |
| CN102568236A (en) * | 2010-12-08 | 2012-07-11 | 罗伯特·博世有限公司 | Method and device for recognizing road signs and comparing with road signs information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102789693A (en) | 2012-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102789693B (en) | A kind of road sign automatic identifying method and vehicle-mounted recognition device | |
| CN101783072B (en) | Variable speed-limit system and method for recording vehicle overspeed violation | |
| EP3022528B1 (en) | Method for operating a navigation system, navigation system and motor vehicle | |
| US11377025B2 (en) | Blocked information displaying method and system for use in autonomous vehicle | |
| CN100382074C (en) | Position tracking system and method based on digital video processing technique | |
| DE102017211821A1 (en) | Systems and methods for minimizing driver distraction from a head-up display (HUD) in a vehicle | |
| CN105096635A (en) | Warning method for traffic-violation-prone road section | |
| CN110501018A (en) | A kind of traffic mark board information collecting method for serving high-precision map producing | |
| CN106104566A (en) | By system in a vehicle | |
| CN104637330B (en) | The anti-hypervelocity method of vehicle mounted guidance communication system based on video Quick Response Code | |
| CN106103232A (en) | Travel controlling system, on-vehicle display and drive-control system | |
| CN110763250B (en) | Method, device and system for processing positioning information | |
| CN103366590A (en) | Information inquiry system and method based on vehicle-mounted terminal | |
| CN105374221A (en) | Reminder system and reminder method of states of traffic lights | |
| CN106781582A (en) | Traffic lights auxiliary display method, device and car-mounted terminal | |
| CN110675627A (en) | Traffic information acquisition method and system based on two-dimension code recognition | |
| CN110533945B (en) | Early warning method and system of traffic signal lamp, vehicle and storage medium | |
| CN107220583A (en) | Method and apparatus for recognizing traffic sign | |
| CN110909699A (en) | Video vehicle non-guide driving detection method and device and readable storage medium | |
| CN105809095B (en) | Determination of traffic intersection passage state | |
| US20180001889A1 (en) | A vehicle assistance system | |
| CN107862882A (en) | Ponding section based reminding method and device | |
| CN110567476A (en) | Navigation method and device | |
| CN116959265A (en) | Traffic information prompting method, device, electronic equipment and readable storage medium | |
| CN207367374U (en) | Intelligent transportation sign board and intelligent transportation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |