CN110146104A - The air navigation aid of electronic device - Google Patents
The air navigation aid of electronic device Download PDFInfo
- Publication number
- CN110146104A CN110146104A CN201910244350.5A CN201910244350A CN110146104A CN 110146104 A CN110146104 A CN 110146104A CN 201910244350 A CN201910244350 A CN 201910244350A CN 110146104 A CN110146104 A CN 110146104A
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- picture
- electronic device
- server
- air navigation
- outdoor scene
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- 230000000007 visual effect Effects 0.000 claims abstract description 4
- 238000004422 calculation algorithm Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013527 convolutional neural network Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013558 reference substance Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
Classifications
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- 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
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3602—Input other than that of destination using image analysis, e.g. detection of road signs, lanes, buildings, real preceding vehicles using a camera
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
- G06V10/462—Salient features, e.g. scale invariant feature transforms [SIFT]
Abstract
The invention discloses a kind of air navigation aids of electronic device, comprising the following steps: the picture for intensively being acquired multiple real scene images on the way using image capture device is identified corresponding scenery in picture, and the picture is stored in server；The GPS coordinate where outdoor scene corresponding to the picture is obtained by the SDK of electronic map, and GPS coordinate numerical value is saved in the server；The distance between the camera site of every picture and outdoor scene are calculated, reckoning result is stored in the server；The photograph image that user is taken pictures using surrounding scenes of the camera to departure place is compared with picture stored in the server；If the similarity of comparing result reaches certain threshold value, GPS coordinate value corresponding to the picture is transferred, is shown on the screen of electronic device as the departure place of user, and by the picture, is converted into the visual information of travel path.Air navigation aid according to the present invention can effectively improve navigation accuracy.
Description
Technical field
The present invention relates to the navigation fields of electronic device, especially with regard to the image superposition air navigation aid based on GPS.
Background technique
The air navigation aid scheme of existing electronic device is by electronic map (such as the navigation of high moral, Baidu's navigation etc.)
API obtains the latitude coordinates numerical value of the GPS inductor of electronic device, the path planning that hair point arrives terminal is calculated, by reasonable
Pathfinding algorithm, by node, on line polar plot/bitmap file format 2D image format is shown in mobile phone screen one by one, completes ground
Figure navigation feature.
It takes the mobile phone as an example, in existing electronic device airmanship, the basic operation for obtaining accurate position coordinates is divided into:
A. it checks itself position of Mobile Telephone Gps map, finds reference substance；
B. self-position and reference position in outdoor scene are observed；
C. target place is proofreaded to advance.
Wherein, the eyes of operator need at least to mobile phone screen scanning twice, once check in mobile phone 2D map obtain it is fixed
The GPS coordinate position of position, and specific geographical sign object in map need to be kept firmly in mind and made reference, it is then once naked eye to ring around
Border is around observation；Find corresponding true geographical marker successful match in map.So matching need to be compared repeatedly to determine sky
Between and navigation routine it is whether correct；It is inefficient.
In addition, the navigation mode requires user's operation skill and technical ability.Such as old man, child's use habit can produce
Raw no small challenge is unfavorable for covering a wide range of crowd's use.
Further, the GPS of regular handset influences precision there are latitude and longitude coordinates drift phenomenon.Because country's secrecy needs,
Artificial biasing processing is carried out to true GPS coordinate system, true coordinate is encrypted to false seat according to special algorithm
Mark, and encrypted coordinate also often by person be Mars coordinate system, so obtain coordinate in map by algorithm correct
There is also errors, usually between 10~20 meters, because accuracy decline will lead to user have probability navigate in carry out wrong way,
Generate other bad results.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of air navigation aids of electronic device, user can be facilitated to efficiently identify out
Hair ground, improves navigation efficiency.
To achieve the above object, the present invention provides a kind of air navigation aids of electronic device, for departure place A to purpose
Ground B carries out electronic navigation, and the electronic device has camera and is equipped with electronic map.The air navigation aid includes following step
It is rapid: intensively to acquire the picture of multiple real scene images on the way using image capture device, identify corresponding scenery in picture, and will
The picture is stored in server；GPS where obtaining outdoor scene corresponding to the picture by the SDK of electronic map is sat
Mark, and GPS coordinate numerical value is saved in the server；The distance between the camera site of every picture and outdoor scene are pushed away
It calculates, reckoning result is stored in the server；User is clapped using surrounding scenes of the camera to departure place A
According to photograph image compared with picture stored in the server；If the similarity of comparing result reaches certain threshold value,
GPS coordinate value corresponding to the picture is then transferred, is shown as the departure place of user, and by the picture in the electronic device
On screen, it is converted into the visual information of travel path.
In a preferred embodiment, described to calculate the distance between the camera site of every picture and outdoor scene
It include: the size value for obtaining outdoor scene；Obtain the focal length of described image acquisition equipment；Measure the ruler of outdoor scene in the picture of real scene image
Very little value；And the distance between camera site and the outdoor scene of picture are calculated according to the principle of similar triangles.
In a preferred embodiment, described to identify that corresponding scenery is known using convolutional network identification model
Not.
In a preferred embodiment, it is taken pictures using SITF algorithm to surrounding scenes of the camera to departure place A
Photograph image compared with picture stored in the server.
In a preferred embodiment, the electronic device is mobile phone.
Compared with prior art, the air navigation aid of electronic device according to the present invention, in original Amap business library
On the basis of, it is superimposed the camera image that instant mobile phone carries, with this outdoor scene with transparent effect route planning, purpose
Point, starting point, travelling route, travel path surrounding scenes show that further user's use habit one by one, reduce learning cost,
Service efficiency is improved, mobile phone need to be only lifted and pick up outdoor scene, can disposably obtain own coordinate and target place to, route, distance
Etc. information.
In addition, user can open map and the real scene image that is superimposed of the invention, direction, direction of advance, distance on one side
Navigation is realized in the case where equal images slight delay, because use habit, like using camera, outdoor scene and 3D rendering navigation close two
It is one, operation only need to lift mobile phone and find a view, and can be obtained direction, programme path, distance, the information such as terminal, reduction operating frequency
With use difficulty.
Meanwhile the surrounding background comparison based on artificial intelligence is added in the present invention, reduces to convert generating because of Mars coordinate
Coordinate setting error, effectively increase navigation accuracy.
Detailed description of the invention
Fig. 1 is the flow chart of air navigation aid according to an embodiment of the present invention.
Fig. 2 is calculating the distance between the camera site of picture and outdoor scene according to an embodiment of the present invention
Schematic diagram.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1, the air navigation aid of electronic device according to the preferred embodiment of the present invention is used for departure place A to mesh
Ground B carry out electronic navigation, the electronic device, which has, camera and is equipped with electronic map, and the air navigation aid includes following
Step.
Firstly, intensively acquiring the picture of multiple real scene images on the way using image capture device, identify corresponding in picture
Scenery, and the picture is stored in server.Preferably, trained convolutional neural networks identification mould in advance is called
Type function carries out identification surroundings to outdoor scene interception image using the camera that image capture device (such as mobile phone) carries,
It obtains that multiple pictures are passed through wireless network upload server after recognition result.
Then, the GPS coordinate where outdoor scene corresponding to the picture is obtained by the SDK of electronic map, and GPS is sat
Numerical value is marked to save in the server.Preferably, electronic map is Amap.
Next, the distance between the camera site of every picture and outdoor scene are calculated, reckoning result is stored in
In the server.
Later, the photograph image taken pictures to user using surrounding scenes of the camera to departure place A with it is described
The picture stored in server compares.Preferably, which uses SIFT (Scale-invariant feature
Transform, Scale invariant features transform matching) algorithm, which is a kind of algorithm for detecting local feature, which passes through
Ask the characteristic point (interest points, orcorner points) in a width figure and its in relation to ratio and orientation describe
To feature and carry out Image Feature Point Matching.
If the similarity of comparing result reaches certain threshold value, GPS coordinate value corresponding to the picture is transferred, as user
Departure place, and the picture is shown on the screen of the electronic device, is converted into the visual information of travel path.
As shown in Fig. 2, which show the schematic diagrams for calculating the distance between the camera site of picture and outdoor scene.It should
Distance is to calculate distance by the principle of similar triangles, can be obtained according to similar triangles formula: f/d=w'/w.
In above-mentioned formula, d is distance of the calculative testee to camera lens.Wherein f is that the focal length of camera lens is
Known, w is the developed width (height) of testee, which can be acquired in advance and is stored in server.W' is
Width (height) of the object on imaging plane (photosensitive element), the numerical value can be by measuring photo and by result thing
It is first stored in server.
According to above-mentioned formula, d value can be easily calculated.
In conclusion the air navigation aid of electronic device according to the present invention, on the basis of original electronic map business library,
It is superimposed the camera image that instant mobile phone carries, with this outdoor scene with transparent effect route planning, point of destination, starting
Point, travelling route, travel path surrounding scenes show that further user's use habit one by one, reduce learning cost, improve and use
Efficiency need to only lift mobile phone and pick up outdoor scene, can disposably obtain own coordinate and target place to, route, the information such as distance.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (5)
1. a kind of air navigation aid of electronic device, for carrying out electronic navigation, the electronic device to departure place A to destination B
With camera and electronic map is installed, which is characterized in that the air navigation aid the following steps are included:
The picture for intensively acquiring multiple real scene images on the way using image capture device identifies corresponding scenery in picture, and
The picture is stored in server；
The GPS coordinate where outdoor scene corresponding to the picture is obtained by the SDK of electronic map, and GPS coordinate numerical value is protected
In presence server；
The distance between the camera site of every picture and outdoor scene are calculated, reckoning result is stored in the server
In；
It is deposited in the photograph image and the server taken pictures to user using surrounding scenes of the camera to departure place A
The picture of storage compares；
If the similarity of comparing result reaches certain threshold value, GPS coordinate value corresponding to the picture is transferred, as going out for user
Hair ground, and the picture is shown on the screen of the electronic device, it is converted into the visual information of travel path.
2. the air navigation aid of electronic device as described in claim 1, which is characterized in that the camera site by every picture
The distance between outdoor scene calculate
Obtain the size value of outdoor scene；
Obtain the focal length of described image acquisition equipment；
Measure the size value of outdoor scene in the picture of real scene image；And
The distance between camera site and the outdoor scene of picture are calculated according to the principle of similar triangles.
3. the air navigation aid of electronic device as described in claim 1, which is characterized in that described to identify that corresponding scenery is to adopt
It is identified with convolutional network identification model.
4. the air navigation aid of electronic device as described in claim 1, which is characterized in that using SITF algorithm to camera to out
The photograph image that the surrounding scenes of hair ground A are taken pictures is compared with picture stored in the server.
5. the air navigation aid of electronic device as described in claim 1, which is characterized in that shown electronic device is smart phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244350.5A CN110146104A (en) | 2019-03-28 | 2019-03-28 | The air navigation aid of electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244350.5A CN110146104A (en) | 2019-03-28 | 2019-03-28 | The air navigation aid of electronic device |
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| CN110146104A true CN110146104A (en) | 2019-08-20 |
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ID=67588733
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| CN201910244350.5A Pending CN110146104A (en) | 2019-03-28 | 2019-03-28 | The air navigation aid of electronic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670298A (en) * | 2019-11-27 | 2021-11-19 | 支付宝(杭州)信息技术有限公司 | Service handling guiding method and device based on augmented reality |
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2019
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Application publication date: 20190820 |
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