CN1577319A - Position tracking system and method based on digital video processing technique - Google Patents
Position tracking system and method based on digital video processing technique Download PDFInfo
- Publication number
- CN1577319A CN1577319A CNA2004100319780A CN200410031978A CN1577319A CN 1577319 A CN1577319 A CN 1577319A CN A2004100319780 A CNA2004100319780 A CN A2004100319780A CN 200410031978 A CN200410031978 A CN 200410031978A CN 1577319 A CN1577319 A CN 1577319A
- Authority
- CN
- China
- Prior art keywords
- information
- road sign
- digital video
- video processing
- image
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a location tracking system and a method based on digital video processing technology. The location tracking system comprises: a sign board information management part, which can keep the color, size and other specification information of the road sign board; a road sign board sensing part, which can implement comparative comparison and analysis over the images obtained from a camera with the information of the sign board information management part, so whether the images are actual road sign board images can be identified; a location information output part, which can extract character information and image information from the certified road sign board images; a location information analysis part, which can implement comparative comparison and analysis on the extracted character information and image information with the previously obtained information so as to grasp the current position; a location information storage part, which can store the location information based on character and image obtained by the location information analysis part; a map retrieval part, which can make the current location information and map information realize a mapping; an information output part, which can display the current location information at a portable terminal screen in the shape of characters or images.
Description
Technical field
The present invention relates to a kind of automobile navigation technology, particularly relate to a kind of location tracking system and method based on the Digital Video Processing technology.
Background technology
The auto-navigation system major part of widely popularizing is to use and utilizes GPS (Global Positioning System-GPS) to inform the method for self-position at present.This realizes by cellphone subscriber and base station and satellite, and according to the difference of the GPS performance of installing, information provides the scope also can be different.
In addition, even do not use GPS, also can follow the trail of the homeposition and the situation of movement of vehicle.
At present, as the conventional art of not using GPS, Republic of Korea publication 2001-35922 number (digital mobile communication network real time position follow-up mechanism and method thereof) based on the self-position login feature of CDMA digital mobile phone terminal proposed.
This conventional art (publication 2001-35922 number) comprises following several stages: the phase one, when VLU (Vehicle Location Unit-vehicle locating device) was installed, intrinsic number of VLU and license plate number recorded in the vehicle file of central computer; Subordinate phase, during stolen the reporting a case to the security authorities of the suffered reason of central control, the intrinsic number of the VLU that installs on the stolen vehicle is input to VAC (Vehicle Activation Computer-vehicle activates computing machine); Phase III, VAC sends activation command to the VAT that is installed on repeater tower (Vehicle Activation Transmittero-vehicle activates transmitter), and the VLU of the vehicle of reporting a case to the security authorities sends the answer back code signal; The quadravalence section, the cruiser that VTC (Vehicle Tracking System-vehicle tracking system) be installed is caught the signal that is sent by the VLU that installs on the stolen vehicle and is followed the trail of, and recovers stolen vehicle immediately; Five-stage, after stolen vehicle is recovered, to central control VAC input dimmed command, transmit (Reset) information that resets to VLU then, stop to send signal.
But, the mode that conventional art is taked is to utilize specific hardware (satellite or antenna) to confirm the present position, utilize terminal to be connected the mode of (connection) with the base station then, so there are the following problems, promptly in the area that can't converse or can't be under the situation of base station acquired information, be difficult to grasp the position, so be difficult in each actual conditions, provide direct help to the vehicle driver.
Summary of the invention
Therefore, problem proposes in order to improve in the past just in the present invention, purpose is to provide a kind of location tracking system and method based on the Digital Video Processing technology, need not satellite or base station, just can obtain as the road sign image of some areas information and analyze, thereby grasp the present position.
The present invention also aims to utilize the camera that is installed on portable terminal device to obtain the road sign image, then it is analyzed, thereby grasp the position of self now.
Another object of the present invention is to and to be made into database to the positional information that from the road sign image, obtains (place name, zone distance, direction), provide traffic route to the driver.
For achieving the above object, the present invention is characterized in that being made of following several sections external or be built-in with in the portable terminal device of camera: the road sign sense part, and its analyzes the image that obtains with camera, confirms whether be the road sign image; The positional information efferent, it is extracting position related text information (place name, zone distance) and graphical information (patterned directional information) from the road sign image of above-mentioned empirical tests; The positional information analysis portion, it compares analysis to the Word message of said extracted and graphical information and previously obtd information, grasps the present position; Map retrieval portion, it makes the present position information of above-mentioned grasp and cartographic information realize mapping; Information output part, it shows above-mentioned present position information literal or patterned positional information.
In addition, for achieving the above object, feature of the present invention is to comprise following several stages: photographing phase, in vehicle operating, take the place ahead image; In the extraction stage, in the image of above-mentioned shooting, extract the road sign image; The grasp stage provides position related text and graphical information from above-mentioned road sign image, grasp the present position; The demonstration stage is mapped on the map present position of above-mentioned grasp, the display text information on the picture that coexists.
The feature of the road sign checking in the said process is: after photographic images is converted to binary picture, from row linear information such as (line), obtain the specification relevant information, color to photographic images divides into groups, after obtaining colouring information, with reference to above-mentioned linear information and colouring information, judge whether it is the real road sign board.
The present invention not only can be by only having the location tracking function the form of specific installation realize, also can realize with the form that is built in portable terminal devices such as mobile phone or PDA.
Description of drawings
Fig. 1 is the location tracking system chart of the embodiment of the invention.
Fig. 2 is the action flow chart of the road sign proof procedure among Fig. 1.
Fig. 3 is the exemplary plot of Ordinary Rd sign board.
Fig. 4 is the exemplary plot of position structure information storage among Fig. 1.
Embodiment
With reference to the accompanying drawings, describe the present invention in detail.
In an embodiment of the present invention, suppose the location tracking function is installed in camera integrated mobile phone, describe with this.
Fig. 1 is the position tracking device block diagram of the embodiment of the invention.As shown in the figure, it is made of following several sections: sign board Information Management Department (160), and it preserves the specification information such as color, size of road sign; Road sign sense part (120), it compares analysis to the image information that obtains with camera (110) and the information of above-mentioned sign board Information Management Department (160), confirms whether be actual road sign image; Positional information efferent (130), it extracts Word message (place name, zone distance) and graphical information (patterned directional information) from the road sign image of above-mentioned checking; Positional information analysis portion (140) compares analysis to the Word message of said extracted and graphical information and previously obtd information, grasps the present position; Positional information storage part (170), it stores the positional information based on literal and figure that this positional information analysis portion (140) obtains; Map retrieval portion (180), it makes the present position information of above-mentioned grasp and cartographic information realize mapping; Information output part (150), it is presented at the form of the present position information of above-mentioned grasp with literal or figure on the portable terminal device picture.
The following describes the detailed action of each chunk of the embodiment of the invention that as above constitutes.
Above-mentioned camera (110) is installed in the mobile phone in internal or external mode, and the driver is when the steering vehicle of destination, and acquisition is equipped with the image of the position of road sign, passes to road sign sense part (120).Camera (110) has zoom function, can adjust, from rather than take all things of vehicle front in service, but only obtain the things image of road sign position.
Below with reference to the action flow chart of Fig. 2, the action of above-mentioned road sign sense part (120) is described.Camera (110) obtains image in real time monitoring after, be separated into the coloured image that extracts the required binary picture of linear information and can utilize colouring information, then, utilize digital image processing techniques that binary picture and coloured image are handled respectively, remove interfering picture, from binary picture, extract linear information, obtain effective informations such as specification.And when extracting, coloured image is carried out the color grouping, after obtaining colouring information, canned data in effective information such as specification and colouring information and the sign board Information Management Department (160) is compared, judge whether the image of above-mentioned shooting is to obtaining the effective image information of road sign information.
Because night or anomalous weather are difficult to discern under the situation of road sign, because sign board has been realized normalization according to road traffic law, so, also can compare with the data of storage in the sign board Information Management Department (160), judge whether it is effective road sign image.In this case, also can use the method for coupling as the similar sign board of imagination.
When road sign sense part (120) judges that when being effective road sign image, above-mentioned positional information efferent (130) extracts and also obtains literal (place name, range information), graphical information (Directional Sign).At this moment, digital image processing techniques-OCR (optical character reader-optical character recognition reader) is used in literal identification.Generally speaking, road sign is shown in the exemplary plot of Fig. 3.
After Word message that above-mentioned positional information analysis portion (140) is extracted positional information efferent (130) and graphical information are saved in positional information storage part (170), the initial stage of will driving just stores the departure place of positional information storage part (170) into, by way of ground and the present place name extracted of the place name of destination and above-mentioned positional information efferent (130) compare analysis, grasp the present position, get in touch with the positional information of former grasp then, calculate Distance Remaining.At this moment, the place name of present position, Distance Remaining and interpretation time are saved in above-mentioned positional information storage part (170).
When obtaining the road sign image, carry out said process each repeatedly, in the driving process of destination by way of the information of present position make database (DB), be kept at successively in the positional information storage part (170).The structure of the route (route) of above-mentioned database (DB) stored is shown in the exemplary plot of Fig. 4.
In addition, can be in the place name of utilizing the identification of continuous mark board to obtain, obtain effectively place name now by calculated rate, though, may be that the place name and the range information of peripheral information saves as a route in position information storage part (170) not now place name.
In the system of the embodiment of the invention shown in Figure 1, realize the management of each route in the above described manner.
Above-mentioned map retrieval portion (180) to built-in map, realizes the present position message reflection of grasping and be stored in positional information storage part (170) by positional information analysis portion (140) graphically to output to information output part (150) then.
Above-mentioned information output part (180) is with the form of literal, the present position information that display position information analysis portion (150) obtains on mobile phone picture.Simultaneously, in mobile phone picture displayed map search part (180) mark the patterned map of present position.At this moment, Word message and cartographic information can be presented on the same picture together, also can show successively.
In addition, above-mentioned information output part (180) can with wireless communication part (not marking among the figure) interlock, give other users the position informing of self so that can utilize the base station, also can with HUD (Head Up Display-head-up display) technology interlock so that on driver's front windshield window, show road sign image or the present position and the cartographic information of present perception.
The following describes a series of actions and action effect in the embodiment of the invention of carrying out above-mentioned action.
At first, the driver is provided with the location tracking function of mobile phone, is provided with in the position that LCDs (LCD) upward shows and imports departure place, destination in the picture.Also can realize like this this moment, that is, provide a kind of picture, can consider that the driver will move by way of ground, input departure place to destination by way of ground.
Then, the driver adjusts the shooting direction of above-mentioned camera (110), so that the camera of installing on the mobile phone (110) can photograph the place ahead things, particularly takes the position at road sign place, starts above-mentioned camera (110) then.
Then, the driver is behind the steering vehicle of destination, camera (110) is then taken the things in the place ahead, road sign sense part (120) is extracted from the image that above-mentioned camera (110) is taken about the linear information of sign board specification, literal etc. and about the colouring information of sign board color, and whether checking is the photographic images of the road sign that is provided with on the real road.
At this moment, if the checking result is the image of the road sign that is provided with on the real road, so, positional information efferent (130) is analyzed linear information and the colouring information relevant with literal, acquisition place name, zone distance, road number and patterned road information.
So, place name, zone distance and patterned road information that positional information analysis portion (140) analysis position information analysis portion (130) obtains are grasped present place name, calculate the Distance Remaining of present range destination.Wherein, place name can be grasped in the place name of driving initial stage input by place name and the user that comparison position information analysis portion (130) is obtained now.
At this moment, positional information storage part (170) is made database (DB) and preservation to the present place name of the place name of positional information efferent (130) acquisition, zone distance, patterned road information and positional information analysis portion (140) grasp and interpretation time.
In addition, map retrieval portion (180) and prior built-in map interlock, mapping is stored in present place name and the Distance Remaining in the positional information storage part (170), thus, just can grasp the present position on map, calculates the arrival information until the destination.
So, information output part (150) just can have been received from the mapping of the present place name of positional information analysis portion (140) input, patterned road information and map retrieval portion (180) input the cartographic information of present position, that is, can be in mobile phone picture the map and the present position of display graphicsization simultaneously.
Wherein, the location tracking relevant information can be carried out multiple setting, be not limited only to the mode that on the terminal picture, shows, also can send to the base station, self-position is notified to specific people, can also outside the tracking function of position, utilize HUD (Head Up Display), directly on driver's front windshield window, show the traffic mark board of perception.
As the above-mentioned detailed description of doing, effect of the present invention is, need not the GPS function, only utilize the portable terminal device that camera is installed, after having discerned road sign, notice present position and arrive at the route of final destination, the traffic mark board image that provides the driver to have little time to see clearly can help safe driving.
In addition, the present invention has used digital image processing techniques, not only can discern road signs such as border, mileage, direction, route sign, can also discern billboard etc. and have the sign board of specific purpose, thereby make the position that the user also can easily find to be needed in the urban district.
Claims (12)
1. location tracking system based on the Digital Video Processing technology, external or be built-in with the portable terminal device of camera, it is characterized in that having following several sections: road sign perception means, the image that its analysis and utilization camera obtains confirms whether be the road sign image;
Positional information is extracted and analysis means, it is extracting position related text information (place name, zone distance) and graphical information (patterned directional information) from the road sign image of above-mentioned checking, Word message and the graphical information extracted are analyzed, grasped the present position;
The information output means, it shows above-mentioned present position information literal or patterned positional information.
2. the location tracking system based on the Digital Video Processing technology according to claim 1, it is characterized in that comprising map retrieval means, it makes present position information and the cartographic information mapping that positional information is extracted and analysis means is grasped and passes to the information output means.
3. the location tracking system based on the Digital Video Processing technology according to claim 1, it is characterized in that also comprising positional information storage means, its storage user in the departure place of initial operating stage input, by way of ground, destination information, simultaneously, the positional information that stored position information extracts and analysis means obtained based on literal and figure, as required, offer above-mentioned positional information extraction and analysis means and map retrieval means.
4. the location tracking system based on the Digital Video Processing technology according to claim 1 is characterized in that:
Road sign perception means become binary picture and coloured image to the separation of images of taking with camera, from binary picture, extract linear information, obtain effective informations such as road sign specification, simultaneously, coloured image is divided into groups, obtain colouring information, by with the comparison of the road sign specification information of prior storage, judge whether it is the road sign image.
5. the location tracking system based on the Digital Video Processing technology according to claim 1 is characterized in that:
If the checking result of road sign perception means is effective road sign images, then linear information and the colouring information that positional information is extracted and the analysis means processing is extracted from these road sign perception means obtains Word message and Directional Sign figures information such as place name, link name, zone distance.
Positional information is extracted and analysis means compares analysis to above-mentioned Word message and previously obtd information then, calculates the present position, apart from the Distance Remaining of destination.
6. the location tracking system based on the Digital Video Processing technology according to claim 1 is characterized in that:
Information output means and wireless communication means interlock are so that notify the present position to specific people with wireless mode.
7. the location tracking system based on the Digital Video Processing technology according to claim 1 is characterized in that:
Information output means and HUD (Head Up Display) means interlock, so as to the driver show road sign, the position of grasping now, with the map of present position mapping.
8. position tracking method based on the Digital Video Processing technology is characterized in that comprising following several stages:
Memory phase, the departure place, by way of information stores such as ground, destinations to database (DB);
Photographing phase is taken the place ahead image in the vehicle operating;
In the extraction stage, in the image of above-mentioned shooting, extract the road sign image;
In the grasp stage, extracting position related text and graphical information from above-mentioned road sign image are grasped the present position;
The demonstration stage is in the present position of the above-mentioned grasp of screen displayed.
9. the position tracking method based on the Digital Video Processing technology according to claim 8 is characterized in that also comprising that one matches the present position stage that shows on the map.
10. the position tracking method based on the Digital Video Processing technology according to claim 8 is characterized in that the road sign extraction stage comprises following plurality of processes:
Process 1, photographic images converted to binary picture after, from row linear information such as (line), obtain the specification relevant information;
Process 2 is divided into groups to the color of photographic images, obtains colouring information;
Process 3 is analyzed above-mentioned linear information and colouring information, judges whether it is effective road sign.
11. the position tracking method based on the Digital Video Processing technology according to claim 8 is characterized in that the position extraction stage comprises following plurality of processes:
Extract the preservation process, extract Word messages such as place name, link name, zone distance and preservation in the binary picture that from the road sign image, proposes;
Computation process, storage in advance in the place name of said extracted and the database by way of ground and the place name of destination compare, grasp the present position, calculate Distance Remaining apart from the destination;
Storing process stores above-mentioned Word message, present position, Distance Remaining, interpretation time into database.
12. the position tracking method based on the Digital Video Processing technology according to claim 11 is characterized in that the present position is to grasp by the frequency of the place name of continuous acquisition is calculated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR0052100/2003 | 2003-07-28 | ||
| KR10-2003-0052100A KR100533033B1 (en) | 2003-07-28 | 2003-07-28 | Position tracing system and method using digital video process technic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1577319A true CN1577319A (en) | 2005-02-09 |
| CN100382074C CN100382074C (en) | 2008-04-16 |
Family
ID=34587825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100319780A Expired - Fee Related CN100382074C (en) | 2003-07-28 | 2004-03-31 | Position tracking system and method based on digital video processing technique |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100533033B1 (en) |
| CN (1) | CN100382074C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945327A (en) * | 2010-09-02 | 2011-01-12 | 郑茂 | Wireless positioning method and system based on digital image identification and retrieve |
| CN101944176A (en) * | 2009-05-08 | 2011-01-12 | 通用汽车环球科技运作公司 | Exist the more excellent clear path of means of transportation sign to detect |
| CN101496032B (en) * | 2006-02-27 | 2011-08-17 | 普莱姆传感有限公司 | Range mapping using speckle decorrelation |
| CN101221049B (en) * | 2006-12-04 | 2011-12-21 | 韩国电子通信研究院 | Vehicle position estimation device and its method |
| CN103105168A (en) * | 2011-11-10 | 2013-05-15 | 奥迪股份公司 | Method for position determination |
| CN103363997A (en) * | 2012-04-03 | 2013-10-23 | 纬创资通股份有限公司 | Positioning method, positioning system and computer readable storage medium for live-action navigation |
| CN102043941B (en) * | 2009-10-20 | 2014-03-26 | 财团法人工业技术研究院 | Dynamic real-time relative relationship identification method and system |
| CN102017661B (en) * | 2008-05-15 | 2014-08-20 | 雅虎公司 | Data access based on content of image recorded by a mobile device |
| CN105593877A (en) * | 2013-10-04 | 2016-05-18 | 高通股份有限公司 | Object tracking based on dynamically built environment map data |
| CN105723432A (en) * | 2013-11-12 | 2016-06-29 | 三菱电机株式会社 | Driving-support-image generation device, driving-support-image display device, driving-support-image display system, and driving-support-image generation program |
| CN111521192A (en) * | 2019-02-01 | 2020-08-11 | 阿里巴巴集团控股有限公司 | Positioning method, navigation information display method, positioning system and electronic equipment |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8171237B2 (en) | 2006-10-31 | 2012-05-01 | Yahoo! Inc. | Automatic association of reference data with primary process data based on time and shared identifier |
| US9753948B2 (en) | 2008-05-27 | 2017-09-05 | Match.Com, L.L.C. | Face search in personals |
| US8098894B2 (en) | 2008-06-20 | 2012-01-17 | Yahoo! Inc. | Mobile imaging device as navigator |
| KR101417901B1 (en) * | 2012-06-12 | 2014-07-10 | 주식회사 인지소프트 | Method and mobile device for recognizing plate based on position using mobile camera |
| US9036867B2 (en) * | 2013-08-12 | 2015-05-19 | Beeonics, Inc. | Accurate positioning system using attributes |
| KR101411893B1 (en) * | 2014-04-11 | 2014-06-25 | 한국건설기술연구원 | Automatic Recognition Method of Direction Information in Road Sign Image |
| CN105571583B (en) * | 2014-10-16 | 2020-02-21 | 华为技术有限公司 | User position positioning method and server |
| KR101673433B1 (en) * | 2016-06-29 | 2016-11-07 | 한국건설기술연구원 | Apparatus and Method that Automatically Recognizes The Route Information Using a Road Sign Image |
| KR101944607B1 (en) * | 2017-01-24 | 2019-02-01 | 울산대학교 산학협력단 | An acquisition system of distance information in direction signs for vehicle location information and method |
| CN113196377B (en) * | 2018-12-20 | 2024-04-12 | Ns西日本株式会社 | Display light emitting device, head-up display device, image display system, and helmet |
| US11510026B2 (en) | 2020-07-01 | 2022-11-22 | Here Global B.V. | Radio-visual approach for device localization based on a vehicle location |
| US11570576B2 (en) | 2020-07-01 | 2023-01-31 | Here Global B.V. | Image-based approach for device localization based on a vehicle location |
| CN115114784B (en) * | 2022-06-29 | 2024-03-15 | 重庆交通大学 | Method for setting exit sign of adjacent intercommunication road section of tunnel based on information theory |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5144685A (en) * | 1989-03-31 | 1992-09-01 | Honeywell Inc. | Landmark recognition for autonomous mobile robots |
| US5179519A (en) * | 1990-02-01 | 1993-01-12 | Pioneer Electronic Corporation | Navigation system for vehicle |
| CA2158500C (en) * | 1994-11-04 | 1999-03-30 | Ender Ayanoglu | Navigation system for an automotive vehicle |
| JPH08247775A (en) * | 1995-03-15 | 1996-09-27 | Toshiba Corp | Device and method for identification of self position of moving body |
| US6266442B1 (en) * | 1998-10-23 | 2001-07-24 | Facet Technology Corp. | Method and apparatus for identifying objects depicted in a videostream |
| JP2001289654A (en) * | 2000-04-11 | 2001-10-19 | Equos Research Co Ltd | Navigator, method of controlling navigator and memory medium having recorded programs |
| KR100386752B1 (en) * | 2000-04-24 | 2003-06-09 | 김석배 | Navigation system of vehicle using live image |
| JP2002243469A (en) * | 2001-02-19 | 2002-08-28 | Alpine Electronics Inc | Navigation device and map database updating system |
| JP2003004462A (en) * | 2001-06-19 | 2003-01-08 | Toppan Printing Co Ltd | Navigation system |
| JP2003123197A (en) * | 2001-10-16 | 2003-04-25 | Alpine Electronics Inc | Recognition device for road mark or the like |
-
2003
- 2003-07-28 KR KR10-2003-0052100A patent/KR100533033B1/en not_active IP Right Cessation
-
2004
- 2004-03-31 CN CNB2004100319780A patent/CN100382074C/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496032B (en) * | 2006-02-27 | 2011-08-17 | 普莱姆传感有限公司 | Range mapping using speckle decorrelation |
| CN101221049B (en) * | 2006-12-04 | 2011-12-21 | 韩国电子通信研究院 | Vehicle position estimation device and its method |
| US9652980B2 (en) | 2008-04-24 | 2017-05-16 | GM Global Technology Operations LLC | Enhanced clear path detection in the presence of traffic infrastructure indicator |
| US8751154B2 (en) | 2008-04-24 | 2014-06-10 | GM Global Technology Operations LLC | Enhanced clear path detection in the presence of traffic infrastructure indicator |
| US11256739B2 (en) | 2008-05-15 | 2022-02-22 | Yahoo Assets Llc | Data access based on con lent of image recorded by a mobile device |
| CN104239408B (en) * | 2008-05-15 | 2019-05-17 | 奥誓公司 | The data access of content based on the image recorded by mobile device |
| CN102017661B (en) * | 2008-05-15 | 2014-08-20 | 雅虎公司 | Data access based on content of image recorded by a mobile device |
| CN104239408A (en) * | 2008-05-15 | 2014-12-24 | 雅虎公司 | Data access based on content of image recorded by a mobile device |
| US9665596B2 (en) | 2008-05-15 | 2017-05-30 | Yahoo! Inc. | Data access based on content of image recorded by a mobile device |
| CN101944176A (en) * | 2009-05-08 | 2011-01-12 | 通用汽车环球科技运作公司 | Exist the more excellent clear path of means of transportation sign to detect |
| CN102043941B (en) * | 2009-10-20 | 2014-03-26 | 财团法人工业技术研究院 | Dynamic real-time relative relationship identification method and system |
| CN101945327A (en) * | 2010-09-02 | 2011-01-12 | 郑茂 | Wireless positioning method and system based on digital image identification and retrieve |
| CN103105168B (en) * | 2011-11-10 | 2016-03-30 | 奥迪股份公司 | For determining the method for position |
| US9500491B2 (en) | 2011-11-10 | 2016-11-22 | Audi Ag | Method for position determination |
| CN103105168A (en) * | 2011-11-10 | 2013-05-15 | 奥迪股份公司 | Method for position determination |
| CN103363997A (en) * | 2012-04-03 | 2013-10-23 | 纬创资通股份有限公司 | Positioning method, positioning system and computer readable storage medium for live-action navigation |
| CN105593877A (en) * | 2013-10-04 | 2016-05-18 | 高通股份有限公司 | Object tracking based on dynamically built environment map data |
| CN105593877B (en) * | 2013-10-04 | 2018-12-18 | 高通股份有限公司 | Object tracking is carried out based on the environmental map data dynamically built |
| CN105723432A (en) * | 2013-11-12 | 2016-06-29 | 三菱电机株式会社 | Driving-support-image generation device, driving-support-image display device, driving-support-image display system, and driving-support-image generation program |
| CN111521192A (en) * | 2019-02-01 | 2020-08-11 | 阿里巴巴集团控股有限公司 | Positioning method, navigation information display method, positioning system and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100382074C (en) | 2008-04-16 |
| KR20050013445A (en) | 2005-02-04 |
| KR100533033B1 (en) | 2005-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1577319A (en) | Position tracking system and method based on digital video processing technique | |
| US11481991B2 (en) | System and method for detecting and transmitting incidents of interest of a roadway to a remote server | |
| US20060164258A1 (en) | Vehicle licence plates monitoring system | |
| WO2018141223A1 (en) | Object recognition in autonomous vehicles | |
| US20160169689A1 (en) | Defining travel paths in parking areas | |
| CN109816971B (en) | Dangerous goods transport vehicle prevention tracking system and method based on multi-source data fusion | |
| CN111931683B (en) | Image recognition method, device and computer readable storage medium | |
| CN103377558A (en) | System and method for managing and controlling traffic flow | |
| US11557206B2 (en) | Information provision system, server, and mobile terminal | |
| US20230392943A1 (en) | Server apparatus and information processing method | |
| US20200202566A1 (en) | Method, apparatus, and system for aligning a vehicle-mounted device | |
| CN114067270A (en) | Vehicle tracking method and device, computer equipment and storage medium | |
| EP3746744A1 (en) | Methods and systems for determining geographic orientation based on imagery | |
| US20190095728A1 (en) | Infrastructure detection device for a vehicle, method for generating a signal, and method for providing repair information | |
| CN113395663A (en) | Tunnel vehicle positioning method based on vehicle-road cooperation | |
| CN115311891B (en) | Roadside and parking lot free parking space sharing method, system and storage medium | |
| US20240029296A1 (en) | Orientation Determination for Mobile Computing Devices | |
| CN1758689A (en) | Location message guide device and method of mobile communication terminal | |
| CN111259818A (en) | Road sign identification method, system and device | |
| CN112270232A (en) | Method and device for classifying weak traffic participants around vehicle | |
| JP7427420B2 (en) | Vehicle recognition system, vehicle recognition method, roadside device, sorting device, and program | |
| CN114627405B (en) | Vehicle integrated vision recognition method | |
| JP5434745B2 (en) | Reference pattern information generating device, method, program, and general vehicle position specifying device | |
| WO2016182629A1 (en) | Defining travel paths in parking areas | |
| CN114022853A (en) | Method and system for monitoring driving road and electronic equipment |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: LANGCHAO LEJIN DIGITAL MOBILE COMMUNICATION CO., L Free format text: FORMER OWNER: LG ELECTRONICS (CHINA) R + D CENTER CO., LTD. Effective date: 20120323 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100102 CHAOYANG, BEIJING TO: 264001 YANTAI, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120323 Address after: 264001 No. 228 Changjiang Road, Yantai economic and Technological Development Zone, Shandong, China Patentee after: Langchao Lejin Digital Mobile Communication Co., Ltd. Address before: Two Beijing 100102 Chaoyang District city in Wangjing Lize Park No. 203 Petrova building block B Patentee before: LG Electronic (China) Research and Development Center Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20140331 |