CN108021924A - A kind of discarded target identification method and device - Google Patents
A kind of discarded target identification method and device Download PDFInfo
- Publication number
- CN108021924A CN108021924A CN201610959117.1A CN201610959117A CN108021924A CN 108021924 A CN108021924 A CN 108021924A CN 201610959117 A CN201610959117 A CN 201610959117A CN 108021924 A CN108021924 A CN 108021924A
- Authority
- CN
- China
- Prior art keywords
- target
- identified
- wheelpath
- tracing point
- discarded
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/24—Classification techniques
- G06F18/243—Classification techniques relating to the number of classes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/28—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network with correlation of data from several navigational instruments
- G01C21/30—Map- or contour-matching
- G01C21/32—Structuring or formatting of map data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Evolutionary Computation (AREA)
- Evolutionary Biology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Bioinformatics & Computational Biology (AREA)
- Artificial Intelligence (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Traffic Control Systems (AREA)
Abstract
The embodiment of the present invention provides a kind of discarded target identification method and device, the described method includes：Obtain multiple wheelpaths；Determine the quantity of wheelpath for thering is at least a portion to overlap with target to be identified；Determine whether the target to be identified is discarded target according to the quantity.This programme is automatically identified target using wheelpath data and map datum, it is possible thereby to save human cost, improves the recognition efficiency of discarded target.
Description
Technical field
The present invention relates to electronic map data process field, and in particular to a kind of discarded target identification method and device.
Background technology
Map of navigation electronic is the important bridge that positioning navigating device is able to be applied to people's life, is navigational route database car
Carry basis and the key components of navigation system, on electronic map various information it is accurate whether and information it is rich direct
It is related to applicable impression of the positioning navigating device to user.
Can, due to the fast development of urban economy construction, interest point data makes rapid progress, be provided for family accurately, appropriately
Interest point information, is the key of navigation electronic map quality.The timeliness and precision of map of navigation electronic directly affect vehicle-mounted
The application level and service quality of navigation system.
The point of interest such as gas station, parking lot is there may be discarded situation in electronic map, if electronic map number
According to renewal not in time, it will bring serious misleading to user.At present, for the identification of discarded target, it usually needs data acquisition
Personnel are by the means of collection in worksite, to determine whether former target is discarded, and this mode expends a large amount of human costs, and in real time
Property is poor, and recognition efficiency is very low.
The content of the invention
Therefore, the present invention is to solve the problem of existing discarded target identification scheme recognition efficiency is low.
In view of this, the present invention provides a kind of discarded target identification method, including：Obtain multiple wheelpaths；Determine with
Target to be identified has the quantity Q of the wheelpath of at least a portion coincidence；Determine that the target to be identified is according to the quantity Q
No is discarded target.
Preferably, before the multiple wheelpaths of acquisition, further include：Obtain the target to be identified；The acquisition
Multiple wheelpaths, including：Determine the road around the target to be identified；Obtain the wheelpath on the road.
Preferably, the quantity Q of the wheelpath for determining to there is at least a portion to overlap with the target to be identified, bag
Include：Each tracing point in each wheelpath is obtained respectively；Judge respectively described each in each wheelpath
Whether there is at least one tracing point to fall in the range of the target to be identified in a tracing point；If have in each tracing point
At least one tracing point falls in the range of the target to be identified, then judge the wheelpath have at least a portion with it is described
The scope of target to be identified overlaps；Count the quantity Q of the wheelpath overlapped with the scope of the target to be identified.
Preferably, whether have in each tracing point judged respectively in each wheelpath at least one
Tracing point falls in the range of the target to be identified, including：For wheelpath described in each, respectively by the driving rail
The coordinate of each tracing point in mark is compared with the coordinate range of the target to be identified；If xi＜ xp＜ xjAnd ((yi-
yj)/(xi-xj)) ＜ ((yi-yp)/(xi-xp)), or xj＜ xp＜ xiAnd ((yj-yi)/(xj-xi)) ＜ ((yj-yp)/(xj-
xp)), then judge xp、ypCorresponding tracing point falls in the coordinate range of the target to be identified, wherein xp、ypFor the track
The coordinate value of point, xi、yiAnd xj、yjFor representing the coordinate range of the target to be identified, j=i+1.
Preferably, it is described to determine whether the target to be identified is discarded target according to the quantity, including：Described in judgement
Whether quantity Q and the ratio of the total quantity T of the multiple wheelpath are less than predetermined threshold value；As the quantity Q and the sum
When the ratio of amount T is less than the predetermined threshold value, it is discarded target to judge the target to be identified.
Correspondingly, the present invention also provides a kind of discarded Target Identification Unit, including：Track acquiring unit is more for obtaining
A wheelpath；Quantity statistics unit, for the quantity for the wheelpath for determining to there is at least a portion to overlap with target to be identified
Q；Recognition unit, for determining whether the target to be identified is discarded target according to the quantity Q.
Preferably, further include：Target Acquisition unit, for obtaining the target to be identified；The track acquiring unit bag
Include：Road determination unit, for determining the road around the target to be identified；Track obtains subelement, described for obtaining
Wheelpath on road.
Preferably, the quantity statistics unit includes：Tracing point acquiring unit, for obtaining each driving rail respectively
Each tracing point in mark；Tracing point position determination unit, it is described each in each wheelpath for judging respectively
Whether there is at least one tracing point to fall in the range of the target to be identified in tracing point；Tracing point identifying unit, for working as
There is at least one tracing point to fall when in the range of the target to be identified in each tracing point, judge the wheelpath
There is at least a portion to be overlapped with the scope of the target to be identified；Statistic unit, for counting the model with the target to be identified
Enclose the quantity Q of the wheelpath of coincidence.
Preferably, the tracing point position determination unit includes：Comparing unit, for for rail of driving a vehicle described in each
Mark, the coordinate of each tracing point in the wheelpath is compared with the coordinate range of the target to be identified respectively；
Location determination unit, for working as xi＜ xp＜ xjAnd ((yi-yj)/(xi-xj)) ＜ ((yi-yp)/(xi-xp)), or xj＜ xp＜ xi
And ((yj-yi)/(xj-xi)) ＜ ((yj-yp)/(xj-xp)) when, judge xp、ypCorresponding tracing point falls in the target to be identified
Coordinate range in, wherein xp、ypFor the coordinate value of the tracing point, xi、yiAnd xj、yjFor representing the target to be identified
Coordinate range, j=i+1.
Preferably, the recognition unit includes：Ratio-dependent unit, for judging the quantity Q and the multiple driving
Whether the ratio of the total quantity T of track is less than predetermined threshold value；Subelement is judged, for when the quantity Q's and total quantity T
When ratio is less than the predetermined threshold value, it is discarded target to judge the target to be identified.
The discarded target identification method and device provided according to the present invention, passes through wheelpath information and target to be identified
Range information, it can be determined that go out whether each wheelpath overlaps with target to be identified, for the in the case of of overlapping, then it represents that
The corresponding vehicle of the wheelpath was driven into the target zone, and interactive, Ran Houtong may occur with the facility in the target
The quantity of the wheelpath overlapped with target to be identified is counted, that is, analyzes that how many vehicle once drove into the target area, according to
The quantity counted judges whether the target is discarded target.This programme is automatically right using wheelpath data and map datum
Target is identified, it is possible thereby to save human cost, improves the recognition efficiency of discarded target.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
Put, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the flow chart for the discarded target identification method that one embodiment of the present of invention provides；
Fig. 2 is the position relationship schematic diagram of the wheelpath and target zone in one embodiment of the present of invention；
Fig. 3 is the flow chart for the discarded target identification method that an alternative embodiment of the invention provides；
Fig. 4 is the position relationship schematic diagram of the wheelpath and target zone in an alternative embodiment of the invention；
Fig. 5 is the structure diagram for the discarded Target Identification Unit that one embodiment of the present of invention provides.
Embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to which explanation, term " first ", " second " are only used for description purpose, and cannot
It is interpreted as indicating or implying relative importance.In addition, technology involved in invention described below different embodiments
As long as feature does not form conflict and be combined with each other each other.
An embodiment of the present invention provides a kind of discarded target identification method, and this method comprises the following steps as shown in Figure 1：
S1, obtains multiple wheelpaths, " line " that wheelpath is made of multiple tracing points, and wheelpath can be edge
Road, i.e. vehicle gathers when driving on road, can also be beyond road, i.e., vehicle deviating road is reached or passed through
Gathered during certain region crossed beyond road.The information that tracing point information can be gathered by vehicle positioning system, trace information
Including vehicle location, vehicle in the information such as the time of each position and speed and direction of traffic.Wheelpath adopts scope
Can be city, administrative division, neighbouring highway where target to be identified.
S2, determines the quantity Q of wheelpath for having at least a portion to overlap with target to be identified, wherein target example to be identified
Gas station in this way, its region of scope, that is, gas station in map, position, area or the coordinate range in the region can pass through
Map datum determines.Fig. 2 shows scope 21, road 23 and a wheelpath 22 for a certain gas station, wherein wheelpath
22 major parts are overlapped with road 23, wherein having in one section of scope for falling into gas station 21, i.e., the process that vehicle is travelled along road 23
In, midway deviating road 23 enters the scope 21 of gas station.This step is to count the quantity of the wheelpath such as wheelpath 22.
It is a variety of to judge that the two mode overlapped has, such as can be judged according to positional information, can also by visualize electronic map and
Figure is estimated to judge.
S3, determines whether target to be identified is discarded target according to definite quantity Q, such as when the value of quantity Q is smaller,
It is less then to indicate entry into the vehicle of target to be identified, it is possible thereby to judge that target to be identified is discarded target.Judge that quantity Q values are big
Small mode has a variety of, such as can be calculated relative to the total quantity of the wheelpath gathered, or relative to predetermined
Threshold value is calculated.Such as directly can compare the quantity Q calculated with predetermined threshold, if greater than predetermined threshold, i.e., very
More vehicles entered the scope 21 of the gas station, it is possible thereby to judge that the gas station is the state of normal use；If less than pre-
Determine threshold value, i.e., seldom entered the scope 21 of the gas station even without vehicle, it is possible thereby to judge that the gas station is discarded shape
State.
Discarded target identification method provided in an embodiment of the present invention passes through wheelpath information and the scope of target to be identified
Information, it can be determined that go out whether each wheelpath overlaps with target to be identified, for the in the case of of overlapping, then it represents that the row
The corresponding vehicle of wheel paths was driven into the target zone, and may occur with the facility in the target it is interactive, then statistics with
The quantity for the wheelpath that target to be identified overlaps, that is, analyze that how many vehicle once drove into the target area, according to statistics
The quantity gone out judges whether the target is discarded target.This programme is using wheelpath data and map datum automatically to target
It is identified, has thus saved human cost, improves the recognition efficiency of discarded target.
On the basis of previous embodiment, an alternative embodiment of the invention additionally provides a kind of discarded target identification side
Method, this method comprises the following steps as shown in Figure 3：
S0, obtains target to be identified, i.e., before the step S1 of above-described embodiment, is given by map datum wait to know first
The information of other target, such as including target type, geographical location, coordinate range etc.；
S11, determines the road around target to be identified, and road quantity can be a plurality of, as long as close on target to be identified
Road can all be adopted；
S12, obtains the wheelpath on road.Such as it can only obtain road 23 for the scene shown in Fig. 2, this programme
On wheelpath, without adopting the wheelpath on other roads.The present embodiment, which only obtains, can lead to target to be identified
Wheelpath on surrounding road, it is possible thereby to the abnormal tracing point drifted in outside road is effectively rejected, and can be effective
Total tracking quantity is reduced, and then improves the efficiency of follow-up decision；
S21, obtains each tracing point in each wheelpath respectively, and the wheelpath in this area is typically by multiple
Continuous tracing point composition, the quantity of tracing point depends on the frequency acquisition of vehicle positioning system.Vehicle positioning system is each
During secondary collection information, the information such as the current position of vehicle, speed, time and direction can be collected.
S22, whether judge respectively has at least one tracing point to fall in each tracing point in each wheelpath is waiting to know
In the range of other target；
As a preferred embodiment, for each wheelpath, respectively by each track in wheelpath
The coordinate of point is compared with the coordinate range of target to be identified；
If xi＜ xp＜ xjAnd ((yi-yj)/(xi-xj)) ＜ ((yi-yp)/(xi-xp)), or
xj＜ xp＜ xiAnd ((yj-yi)/(xj-xi)) ＜ ((yj-yp)/(xj-xp)), there is an establishment in the two conditions,
Then judge xp、ypCorresponding tracing point falls in the coordinate range of target to be identified, wherein xp、ypFor the coordinate value of tracing point, xi、
yiAnd xj、yjFor representing the coordinate range of target to be identified, j=i+1, thus (xi、yi) and (xj、yj) represent target to be identified
Coordinate range in the adjacent coordinate points of any two coordinate value.This programme is by the seat of each tracing point in wheelpath
Mark is contrasted one by one with each coordinate points in target area to be identified respectively, and then determines whether the two has the portion of coincidence
Point, program accuracy is higher.
S23, if there is at least one tracing point to fall in the range of target to be identified in each tracing point, judges driving rail
Mark has at least a portion to be overlapped with the scope of target to be identified, and Fig. 4 shows the scope 41 of a certain gas station, road 43 and one
The wheelpath being made of multiple tracing points, most of tracing point in the wheelpath is on road 43, wherein there is 3 tracks
Point deviate from road 43, and 1 tracing point 42 therein is fallen into the scope 41 of gas station, it is possible thereby to determine that the wheelpath has
A part is overlapped with the scope 41 of gas station；
S24, counts the quantity Q of the wheelpath overlapped with the scope of target to be identified.
S31, judges whether the ratio of the quantity Q and the total quantity T of the multiple wheelpath are less than predetermined threshold value；
S32, when the ratio of the quantity Q and total quantity T is less than the predetermined threshold value, judges the mesh to be identified
It is designated as discarded target.Mass data can be adopted during practical application to be calculated, such as can gather 10000 wheelpaths,
Then the quantity of the wheelpath wherein overlapped with the scope of target to be identified is calculated, it is assumed that be 50, i.e. 10000 driving rails
Only have 50 wheelpaths to have situation about overlapping with target to be identified in mark, thus obtain ratio as 0.5%, it is assumed that predetermined threshold value
Value is 1%, then target to be identified is discarded target.This programme judges discarded mesh by overlapping the ratio of quantity and total quantity
Mark, it is possible thereby to improve the accuracy for judging result.
An alternative embodiment of the invention additionally provides a kind of discarded Target Identification Unit, as shown in figure 5, the device bag
Include：
Track acquiring unit 51, for obtaining multiple wheelpaths；
Quantity statistics unit 52, for the quantity Q for the wheelpath for determining to there is at least a portion to overlap with target to be identified；
Recognition unit 53, for determining whether the target to be identified is discarded target according to the quantity Q.
Discarded Target Identification Unit provided in an embodiment of the present invention passes through wheelpath information and the scope of target to be identified
Information, it can be determined that go out whether each wheelpath overlaps with target to be identified, for the in the case of of overlapping, then it represents that the row
The corresponding vehicle of wheel paths was driven into the target zone, and may occur with the facility in the target it is interactive, then statistics with
The quantity for the wheelpath that target to be identified overlaps, that is, analyze that how many vehicle once drove into the target area, according to statistics
The quantity gone out judges whether the target is discarded target.This programme is using wheelpath data and map datum automatically to target
It is identified, has thus saved human cost, improves the recognition efficiency of discarded target.
As a preferred embodiment, above device can also include：
Target Acquisition unit, for obtaining the target to be identified；
The track acquiring unit can include：
Road determination unit, for determining the road around the target to be identified；
Track obtains subelement, for obtaining the wheelpath on the road.
Above-mentioned preferred solution only obtains the wheelpath on the surrounding road for leading to target to be identified, it is possible thereby to effectively
The abnormal tracing point drifted in outside road is rejected, and can effectively reduce total tracking quantity, and then improves follow-up decision
Efficiency；
Preferably, the quantity statistics unit includes：
Tracing point acquiring unit, for obtaining each tracing point in each wheelpath respectively；
Tracing point position determination unit, is in each tracing point in each wheelpath for judging respectively
It is no to there is at least one tracing point to fall in the range of the target to be identified；
Tracing point identifying unit, for when thering is at least one tracing point to fall in the mesh to be identified in each tracing point
When in the range of target, judge that the wheelpath has at least a portion to be overlapped with the scope of the target to be identified；
Statistic unit, for counting the quantity Q of the wheelpath overlapped with the scope of the target to be identified.
Preferably, the tracing point position determination unit includes：
Comparing unit, for for wheelpath described in each, respectively by each tracing point in the wheelpath
Coordinate be compared with the coordinate range of the target to be identified；
Location determination unit, for working as
xi＜ xp＜ xjAnd ((yi-yj)/(xi-xj)) ＜ ((yi-yp)/(xi-xp)), or
xj＜ xp＜ xiAnd ((yj-yi)/(xj-xi)) ＜ ((yj-yp)/(xj-xp)) when, judge xp、ypCorresponding tracing point
Fall in the coordinate range of the target to be identified, wherein xp、ypFor the coordinate of the tracing point, xi、yiAnd xj、yjFor representing
The coordinate range of target to be identified, j=i+1.
Above-mentioned preferred solution by the coordinate of each tracing point in wheelpath respectively with it is every in target area to be identified
A coordinate points are contrasted one by one, and then determine whether the two has the part of coincidence, and program accuracy is higher.
Preferably, the recognition unit includes：
Whether ratio-dependent unit, the ratio for judging the quantity Q and the total quantity T of the multiple wheelpath are small
In predetermined threshold value；
Subelement is judged, for when the ratio of the quantity Q and the total quantity T are less than the predetermined threshold value, judging
The target to be identified is discarded target.Above-mentioned preferred solution judges discarded mesh by overlapping the ratio of quantity and total quantity
Mark, it is possible thereby to improve the accuracy for judging result.
Obviously, the above embodiments are merely examples for clarifying the description, and the restriction not to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
- A kind of 1. discarded target identification method, it is characterised in that including：Obtain multiple wheelpaths；Determine the quantity Q of wheelpath for thering is at least a portion to overlap with target to be identified；Determine whether the target to be identified is discarded target according to the quantity Q.
- 2. according to the method described in claim 1, it is characterized in that, before the multiple wheelpaths of acquisition, further include：Obtain the target to be identified；The multiple wheelpaths of acquisition, including：Determine the road around the target to be identified；Obtain the wheelpath on the road.
- 3. according to the method described in claim 1, it is characterized in that, described determine there is at least a portion with the target to be identified The quantity Q of the wheelpath of coincidence, including：Each tracing point in each wheelpath is obtained respectively；Judge whether there is at least one tracing point to fall described in each tracing point in each wheelpath respectively In the range of target to be identified；If there is at least one tracing point to fall in the range of the target to be identified in each tracing point, the row is judged Wheel paths have at least a portion to be overlapped with the scope of the target to be identified；Count the quantity Q of the wheelpath overlapped with the scope of the target to be identified.
- 4. according to the method described in claim 3, it is characterized in that, it is described judge respectively it is described in each wheelpath Whether there is at least one tracing point to fall in the range of the target to be identified in each tracing point, including：For wheelpath described in each, respectively by the coordinate of each tracing point in the wheelpath with it is described to be identified The coordinate range of target is compared；If xi＜ xp＜ xjAnd ((yi-yj)/(xi-xj)) ＜ ((yi-yp)/(xi-xp)), orxj＜ xp＜ xiAnd ((yj-yi)/(xj-xi)) ＜ ((yj-yp)/(xj-xp)), then judge xp、ypCorresponding tracing point falls in institute In the coordinate range for stating target to be identified, wherein xp、ypFor the coordinate value of the tracing point, xi、yiAnd xj、yjFor representing described The coordinate range of target to be identified, j=i+1.
- 5. according to claim 1-4 any one of them methods, it is characterised in that described to wait to know according to determining the quantity Whether other target is discarded target, including：Judge whether the ratio of the quantity Q and the total quantity T of the multiple wheelpath are less than predetermined threshold value；When the ratio of the quantity Q and total quantity T is less than the predetermined threshold value, judge that the target to be identified is discarded Target.
- A kind of 6. discarded Target Identification Unit, it is characterised in that including：Track acquiring unit, for obtaining multiple wheelpaths；Quantity statistics unit, for the quantity Q for the wheelpath for determining to there is at least a portion to overlap with target to be identified；Recognition unit, for determining whether the target to be identified is discarded target according to the quantity Q.
- 7. device according to claim 6, it is characterised in that further include：Target Acquisition unit, for obtaining the target to be identified；The track acquiring unit includes：Road determination unit, for determining the road around the target to be identified；Track obtains subelement, for obtaining the wheelpath on the road.
- 8. device according to claim 6, it is characterised in that the quantity statistics unit includes：Tracing point acquiring unit, for obtaining each tracing point in each wheelpath respectively；Tracing point position determination unit, for judging whether have in each tracing point in each wheelpath respectively At least one tracing point falls in the range of the target to be identified；Tracing point identifying unit, for when thering is at least one tracing point to fall in the target to be identified in each tracing point In the range of when, judge the wheelpath have at least a portion overlapped with the scope of the target to be identified；Statistic unit, for counting the quantity Q of the wheelpath overlapped with the scope of the target to be identified.
- 9. device according to claim 8, it is characterised in that the tracing point position determination unit includes：Comparing unit, for for wheelpath described in each, respectively by the seat of each tracing point in the wheelpath Mark is compared with the coordinate range of the target to be identified；Location determination unit, for working asxi＜ xp＜ xjAnd ((yi-yj)/(xi-xj)) ＜ ((yi-yp)/(xi-xp)), orxj＜ xp＜ xiAnd ((yj-yi)/(xj-xi)) ＜ ((yj-yp)/(xj-xp)) when, judge xp、ypCorresponding tracing point falls in institute In the coordinate range for stating target to be identified, wherein xp、ypFor the coordinate value of the tracing point, xi、yiAnd xj、yjFor representing described The coordinate range of target to be identified, j=i+1.
- 10. according to the device any one of claim 6-9, it is characterised in that the recognition unit includes：Ratio-dependent unit, it is pre- whether the ratio for judging the quantity Q and total quantity T of the multiple wheelpath is less than If threshold value；Subelement is judged, for when the ratio of the quantity Q and the total quantity T are less than the predetermined threshold value, described in judgement Target to be identified is discarded target.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959117.1A CN108021924A (en) | 2016-11-03 | 2016-11-03 | A kind of discarded target identification method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959117.1A CN108021924A (en) | 2016-11-03 | 2016-11-03 | A kind of discarded target identification method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108021924A true CN108021924A (en) | 2018-05-11 |
Family
ID=62083967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610959117.1A Pending CN108021924A (en) | 2016-11-03 | 2016-11-03 | A kind of discarded target identification method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108021924A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448380A (en) * | 2018-12-17 | 2019-03-08 | 百度在线网络技术（北京）有限公司 | Route denial finds method, apparatus, equipment and computer-readable medium |
| CN110211161A (en) * | 2019-05-20 | 2019-09-06 | 深兰科技（上海）有限公司 | A kind of multi-cam track is overlapped the method and device of analysis |
| CN110422151A (en) * | 2019-07-18 | 2019-11-08 | 浙江吉利新能源商用车集团有限公司 | A kind of vehicle auxiliary braking method, device, system and terminal |
| CN110873571A (en) * | 2018-08-30 | 2020-03-10 | 北京嘀嘀无限科技发展有限公司 | Intersection stop line data acquisition method, system and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279406A (en) * | 2011-04-12 | 2011-12-14 | 广州星唯信息科技有限公司 | Fence identification method using global positioning system (GPS) to position tracks |
| CN103218240A (en) * | 2013-04-18 | 2013-07-24 | 武汉光庭信息技术有限公司 | Abandoned road recognition method based on floating vehicle trajectories |
| CN105185145A (en) * | 2015-10-04 | 2015-12-23 | 陈燕 | Intelligent dynamic road condition map navigation system and method |
-
2016
- 2016-11-03 CN CN201610959117.1A patent/CN108021924A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279406A (en) * | 2011-04-12 | 2011-12-14 | 广州星唯信息科技有限公司 | Fence identification method using global positioning system (GPS) to position tracks |
| CN103218240A (en) * | 2013-04-18 | 2013-07-24 | 武汉光庭信息技术有限公司 | Abandoned road recognition method based on floating vehicle trajectories |
| CN105185145A (en) * | 2015-10-04 | 2015-12-23 | 陈燕 | Intelligent dynamic road condition map navigation system and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873571A (en) * | 2018-08-30 | 2020-03-10 | 北京嘀嘀无限科技发展有限公司 | Intersection stop line data acquisition method, system and device |
| CN110873571B (en) * | 2018-08-30 | 2021-09-07 | 北京嘀嘀无限科技发展有限公司 | Intersection stop line data acquisition method, system and device |
| CN109448380A (en) * | 2018-12-17 | 2019-03-08 | 百度在线网络技术（北京）有限公司 | Route denial finds method, apparatus, equipment and computer-readable medium |
| CN110211161A (en) * | 2019-05-20 | 2019-09-06 | 深兰科技（上海）有限公司 | A kind of multi-cam track is overlapped the method and device of analysis |
| CN110211161B (en) * | 2019-05-20 | 2021-06-11 | 深兰科技（上海）有限公司 | Method and device for multi-camera track coincidence analysis |
| CN110422151A (en) * | 2019-07-18 | 2019-11-08 | 浙江吉利新能源商用车集团有限公司 | A kind of vehicle auxiliary braking method, device, system and terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103903433B (en) | The Real-time and Dynamic method of discrimination of a kind of road traffic state and device | |
| CN111091720B (en) | Congestion road section identification method and device based on signaling data and floating car data | |
| US10408636B2 (en) | Apparatus and method for vehicle economy improvement | |
| CN103646187B (en) | Method for obtaining vehicle travel path and OD (Origin-Destination) matrix in statistic period | |
| CN101270997B (en) | Floating car dynamic real-time traffic information processing method based on GPS data | |
| US9418545B2 (en) | Method and system for collecting traffic data | |
| CN108021924A (en) | A kind of discarded target identification method and device | |
| CN110176139A (en) | A kind of congestion in road identification method for visualizing based on DBSCAN+ | |
| CN105023428A (en) | Road condition information assessment method and apparatus | |
| CN101364345A (en) | Real-time dynamic information processing method based on car detecting technique | |
| CN113847925A (en) | Method, device, equipment and medium for detecting vehicle yaw based on track data | |
| CN109712401B (en) | Composite road network bottleneck point identification method based on floating car track data | |
| CN101964941A (en) | Intelligent navigation and position service system and method based on dynamic information | |
| CN107195180A (en) | A kind of traffic trip track extraction method and device based on the alert data of electricity | |
| CN102622880A (en) | Traffic information data recovery method and device | |
| CN105101092A (en) | Mobile phone user travel mode recognition method based on C4.5 decision tree | |
| CN103065468A (en) | Assessment method of traffic information and device | |
| CN105336166A (en) | Traffic characteristic parameter extraction method based on vehicle Bluetooth | |
| CN114664087B (en) | Method, device, equipment and medium for recognizing up-down high speed of vehicle based on track | |
| CN111915893B (en) | Road bottleneck point identification method and device, electronic equipment and storage medium | |
| CN109996299A (en) | High-speed rail user identification method, device, equipment and medium | |
| CN107240264A (en) | A kind of non-effective driving trace recognition methods of vehicle and urban road facility planing method | |
| CN110827537B (en) | Method, device and equipment for setting tidal lane | |
| CN107993441B (en) | Method and device for predicting regular running route of truck | |
| CN106529765A (en) | Performance evaluation method and device for collection operation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180511 |
|
| RJ01 | Rejection of invention patent application after publication |