CN103164750A - Method for establishing corresponding relation of line video frame and line mileage and locating method - Google Patents
Method for establishing corresponding relation of line video frame and line mileage and locating method Download PDFInfo
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- CN103164750A CN103164750A CN2012105708084A CN201210570808A CN103164750A CN 103164750 A CN103164750 A CN 103164750A CN 2012105708084 A CN2012105708084 A CN 2012105708084A CN 201210570808 A CN201210570808 A CN 201210570808A CN 103164750 A CN103164750 A CN 103164750A
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Abstract
The invention discloses a method for establishing a corresponding relation of a line video frame and a line mileage and a locating method. The method for establishing the corresponding relation of the line video frame and the line mileage and the locating method include that n target equipment covered by a line video is chosen; on account of each target equipment in the n target equipment, m feature points are respectively selected, on account of each feature point of the m feature points, one video frame in w video frames corresponding to the feature point in a line video is selected to be an equipment key frame, and a line mileage corresponding to the equipment key frame is calculated; based on the equipment key frame and the line mileage corresponding to the equipment key frame, the corresponding relation between the line video frame and the line mileage is established. According to the method for establishing the corresponding relation of the line video frame and the line mileage and the locating method, the line mileage corresponding to the current line video frame can be accurately confirmed in real time through the relation between the line video frame and the line mileage, or the line video frame corresponding to the current line mileage is confirmed, and both the locating accuracy and efficiency are improved.
Description
Technical field
The present invention relates to railway equipment management, particularly, relate to a kind of method of the method for the corresponding relation of circuit frame of video and circuit mileage, a kind of circuit mileage location and a kind of method that circuit frame of video is located set up.
Background technology
The rail track video refers in train travelling process, the Along Railway video of taking over against the train direct of travel in the anterior pilothouse of train, it can reflect Along Railway topography and geomorphology and status of equipment intuitively, is the data of the outbalance that uses of a plurality of railway operation administrative authority.Generally the rail track video need to be carried out mileage and locate that (for example, can make the dispatcher understand the line facility situation every trade car of going forward side by side commands to be used for dispatch control and accident rescue; When appearance accident or disaster, can make the related personnel in time grasp the topography and geomorphology of accident spot and status of equipment and determine the accident rescue decision-making), the aspects such as equipment control (using in the time of for example, can carrying out plant maintenance for railway, electricity business and traction power supply equipment management personnel), staff training and drive simulating (can provide the rail track video background to carry out drive simulating as the training of maintenance department train driver).
At present, the mileage localization method commonly used of rail track video comprises that artificial mileage location (for example, when playing the rail track video, operating personnel are by the fast forwarding and fast rewinding to original video data, searching equipment positions etc.) and video is carried out early stage or post-processed (for example to increase mileage information, when video capture, run into kilometer post, half kilometer post, operating personnel propaganda directed to communicate to record current mileage information to video camera, again video are done post-processed afterwards and add mileage location etc.).
There is following problem in said process: on the one hand, said method all needs artificial participation just can complete when mileage is located, and consumes the accuracy rate lower (for example, manually-operated has the interference of the factors such as reaction time) of a large amount of manpowers and mileage location; On the other hand, real-time circuit mileage when said method can't be realized playing the rail track video also can't be realized navigating to corresponding video scene (being the circuit frame of video) according to the circuit mileage.
Summary of the invention
For the problems referred to above that exist in existing technology, the present invention proposes a kind of method of method of setting up the method for the corresponding relation of circuit frame of video and circuit mileage, a kind of circuit mileage location and a kind of circuit frame of video location.
The invention provides a kind of method of setting up the corresponding relation of circuit frame of video and circuit mileage, the method comprises: n target device selecting the circuit video to cover; For each target device in a described n target device, choose respectively m unique point, each unique point for a described m unique point, choose this unique point frame of video in corresponding w frame of video in described circuit video and as the equipment key frame, and calculate the corresponding circuit mileage of this equipment key frame; Set up the corresponding relation of circuit frame of video and circuit mileage based on equipment key frame and the corresponding circuit mileage of described equipment key frame.
In addition, the present invention also provides the method for a kind of circuit mileage location, and the method comprises: for current circuit frame of video z
i, according to the corresponding relation of circuit frame of video and circuit mileage, be chosen in and deserve front circuit frame of video z
iBefore and afterwards, with deserve before circuit frame of video z
iTwo the most contiguous equipment key frame z
1And z
2According to the corresponding relation of circuit frame of video and circuit mileage, determine and described two equipment key frame z
1And z
2Corresponding circuit mileage x
1And x
2Calculate described current circuit frame of video z according to following formula
iCorresponding circuit mileage x
i:
The corresponding relation of wherein said circuit frame of video and circuit mileage is by determining according to the circuit frame of video of foundation provided by the present invention and the corresponding relation method of circuit mileage.
In addition, the present invention also provides the method for a kind of circuit frame of video location, and the method comprises: for current circuit mileage x
i, according to the corresponding relation of circuit frame of video and circuit mileage, be chosen in and deserve front circuit mileage x
iBefore and afterwards, with deserve before circuit mileage x
iTwo the most contiguous circuit mileage x
1And x
2According to the corresponding relation of circuit frame of video and circuit mileage, determine and described two circuit mileage x
1And x
2Corresponding equipment key frame z
1And z
2Calculate described current circuit mileage x according to following formula
iCorresponding circuit frame of video z
i:
The corresponding relation of wherein said circuit frame of video and circuit mileage is by determining according to the circuit frame of video of foundation provided by the present invention and the corresponding relation method of circuit mileage.
adopt the method for setting up the corresponding relation of circuit frame of video and circuit mileage provided by the present invention, can set up the corresponding relation of circuit frame of video and circuit mileage, when locating, mileage facilitates accurately calling of data, and adopt the method for circuit mileage provided by the present invention location and the method for circuit frame of video location, can determine comparatively accurately and real-time the corresponding circuit mileage of current circuit frame of video by the corresponding relation of circuit frame of video and circuit mileage, perhaps determine the corresponding circuit frame of video of current circuit mileage, show in real time corresponding circuit mileage when can realize playing the rail track video thus, and realize navigating to corresponding video scene (being the circuit frame of video) according to the circuit mileage, locating accuracy and efficient all are improved.
Other features and advantages of the present invention will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of instructions, is used from explanation the present invention with following embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the process flow diagram according to the method for the corresponding relation of setting up circuit frame of video and circuit mileage of embodiment of the present invention;
Fig. 2 is the process flow diagram according to the method for the circuit mileage of embodiment of the present invention location; And
Fig. 3 is the process flow diagram according to the method for the circuit frame of video of embodiment of the present invention location.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
Fig. 1 is the method flow diagram according to the corresponding relation of setting up circuit frame of video and circuit mileage of embodiment of the present invention.As shown in Figure 1, the method comprises: in step 1001, and n target device selecting the circuit video to cover; In step 1002, for each target device in a described n target device, choose respectively m unique point, each unique point for a described m unique point, choose this unique point frame of video in corresponding w frame of video in described circuit video and as the equipment key frame, and calculate the corresponding circuit mileage of this equipment key frame; In step 1003, set up the corresponding relation of circuit frame of video and circuit mileage based on equipment key frame and the corresponding circuit mileage of described equipment key frame.
Suppose that this circuit video at the uniform velocity takes, can pass through the corresponding circuit mileage of following formula computing equipment key frame:
Z wherein
0, z
nBe respectively the frame of video of starting point of described circuit video and the frame of video of terminal point, x
0, x
nBe respectively the frame of video of described starting point and the corresponding circuit mileage of frame of video of terminal point, z is arbitrary equipment key frame, and x is the corresponding circuit mileage of this arbitrary equipment key frame.
Can select apparent in view in circuit or landmark thing or terrestrial reference are used as described target device, so that identification.Described target device can comprise with lower any one: railway station, tunnel, bridge, grade separation, road junction, Wayside signal, interval catenary mast, kilometer post, hundred-metre post.
For instance, in step 1001, the frame of video of the starting point of known line video and the frame of video of terminal point are respectively z
0, z
n, the corresponding circuit mileage of the frame of video of described starting point and the frame of video of terminal point is respectively x
0, x
n, can select n railway station that the circuit video covers as target device (can set according to the railway station number in concrete circuit).
In step 1002, for each railway station in a described n railway station, choose respectively m unique point (for example up home signal, descending home signal, three unique points of station centre).Usually, in captured video, each unique point for a described m unique point, (for example all have a plurality of circuit frame of video, take diverse location, the up home signal of angle, descending home signal, station centre etc.), for each unique point of a described m unique point, can choose this unique point in described circuit video a frame of video in corresponding w frame of video as the equipment key frame, so that each unique point has an equipment key frame.For example, for this unique point of station centre, operating personnel can play all frame of video (video pictures) relevant to this station centre, the frame of video that station centre is the most clear, the position is best (this frame of video can most accurately reflect this unique point) of select taking in these frame of video according to actual needs, with selected this frame of video as the equipment key frame that represents this unique point of station centre.Afterwards, calculate the corresponding circuit mileage of this equipment key frame according to formula (1).Adopt aforesaid way to determine the equipment key frame for the unique point of all railway stations, and calculate its corresponding circuit mileage, can set up thus the corresponding relation of all devices key frame and circuit mileage.
Should be understood that, the target device that the circuit video covers is not limited to railway station, can also cover tunnel, bridge, grade separation, road junction, Wayside signal, interval catenary mast, kilometer post, hundred-metre post etc. such as it.For example, a said n railway station can be divided at most n+1 station interval, can choose k tunnel in each interval, station, and tunnel entrance, outlet etc. is made as the unique point in tunnel, also carry out choosing of equipment key frame in above-mentioned same mode for each unique point, and by circuit mileage corresponding to formula (1) computing equipment key frame.Similarly, can further interval, above-mentioned station be subdivided between k+1 Close Tunnel, (for example can also choose l bridge between each Close Tunnel between this k+1 Close Tunnel, bridge starting point, terminal point, center are as unique point), be divided into l+1 bridge interval (being similar to step 1001,1002) until this circuit video is divided into minimum interval interior (for example, being divided into hundred-metre post).
In step 1003, set up the corresponding relation of circuit frame of video and circuit mileage based on equipment key frame and the corresponding circuit mileage of described equipment key frame.For example, described corresponding relation can be the corresponding relation database of equipment key frame and corresponding circuit mileage, equipment key frame and the corresponding circuit mileage of equipment key frame of all target devices that storage circuit video covers in this corresponding relation database.Should be understood that, above-mentioned embodiment is the indefiniteness example embodiment, and the present invention does not limit this.
Can realize circuit frame of video and circuit mileage corresponding in the circuit video based on above-mentioned circuit frame of video and the corresponding relation of circuit mileage, namely according to circuit frame of video location circuit mileage, perhaps according to circuit mileage location circuit frame of video.
Fig. 2 is the method flow diagram of locating according to the circuit mileage of embodiment of the present invention.As shown in Figure 2, the method comprises: in step 2001, for current circuit frame of video z
i, according to the corresponding relation of circuit frame of video and circuit mileage, be chosen in and deserve front circuit frame of video z
iBefore and afterwards, with deserve before circuit frame of video z
iTwo the most contiguous equipment key frame z
1And z
2In step 2002, according to the corresponding relation of circuit frame of video and circuit mileage, determine and described two equipment key frame z
1And z
2Corresponding circuit mileage x
1And x
2In step 2003, calculate described current circuit frame of video z according to following formula
iCorresponding circuit mileage x
i:
Wherein, the corresponding relation of described circuit frame of video and circuit mileage is to determine according to the circuit frame of video of foundation provided by the present invention and the corresponding relation method of circuit mileage.
For instance, when playing the circuit video, (be current circuit frame of video z for the video pictures of current broadcast
i(i frame or frame number i)), can determine the circuit mileage that this video pictures is corresponding according to following steps:
In step 2001, for current circuit frame of video z
i(being the video pictures of current broadcast) according to the corresponding relation of above-mentioned circuit frame of video and circuit mileage, is chosen in and deserves front circuit frame of video z
iBefore and afterwards, with deserve before circuit frame of video z
iTwo the most contiguous equipment key frame z
1And z
2(for example select the equipment key frame from the corresponding relation database, this corresponding relation database stores equipment key frame and the corresponding circuit mileage thereof of circuit), i.e. z
1≤ z
i≤ z
2Wherein select two the most contiguous equipment key frames can suppose that video capture is at the uniform velocity in this interval, guaranteed the accuracy of the result of calculation in step 2003;
In step 2002, two equipment key frame z have been determined
1And z
2After, just can determine and described two equipment key frame z according to the corresponding relation of circuit frame of video and circuit mileage
1And z
2Corresponding circuit mileage x
1And x
2
In step 2003, can calculate described current circuit frame of video z according to formula (2)
iCorresponding circuit mileage x
i
Fig. 3 is the method flow diagram of locating according to the circuit frame of video of embodiment of the present invention.As shown in Figure 3, the method comprises: in step 3001, for current circuit mileage x
i, according to the corresponding relation of circuit frame of video and circuit mileage, be chosen in and deserve front circuit mileage x
iBefore and afterwards, with deserve before circuit mileage x
iTwo the most contiguous circuit mileage x
1And x
2In step 3002, according to the corresponding relation of circuit frame of video and circuit mileage, determine and described two circuit mileage x
1And x
2Corresponding equipment key frame z
1And z
2In step 3003, calculate described current circuit mileage x according to following formula
iCorresponding circuit frame of video z
i:
Wherein, the corresponding relation of described circuit frame of video and circuit mileage is to determine according to the circuit frame of video of foundation provided by the present invention and the corresponding relation method of circuit mileage.
For instance, for a certain circuit mileage, can calculate its frame of video corresponding in the circuit video according to following steps:
In step 3001, for current circuit mileage x
i, according to the corresponding relation of circuit frame of video and circuit mileage, be chosen in and deserve front circuit mileage x
iBefore and afterwards, with deserve before circuit mileage x
iTwo the most contiguous circuit mileage x
1And x
2(for example select to have the circuit mileage of corresponding equipment key frame from the corresponding relation database, this corresponding relation database stores equipment key frame and the corresponding circuit mileage thereof of circuit), i.e. x
1≤ x
i≤ x
2Wherein select two the most contiguous circuit mileages can suppose that video capture is at the uniform velocity in this interval, guaranteed the accuracy of the result of calculation in step 3003;
In step 3002, two circuit mileage x have been determined
1And x
2After, just can determine and described two circuit mileage x according to the corresponding relation of circuit frame of video and circuit mileage
1And x
2Corresponding equipment key frame z
1And z
2
In step 3003, calculate described current circuit mileage x according to formula (3)
iCorresponding circuit frame of video z
i
adopt the method for setting up the corresponding relation of circuit frame of video and circuit mileage provided by the present invention, can set up the corresponding relation of circuit frame of video and circuit mileage, when locating, mileage facilitates accurately calling of data, and adopt the method for circuit mileage provided by the present invention location and the method for circuit frame of video location, can determine comparatively accurately and real-time the corresponding circuit mileage of current circuit frame of video by the corresponding relation of circuit frame of video and circuit mileage, perhaps determine the corresponding circuit frame of video of current circuit mileage, show in real time corresponding circuit mileage when can realize playing the rail track video thus, and realize navigating to corresponding video scene (being the circuit frame of video) according to the circuit mileage, locating accuracy and efficient all are improved.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove in addition, each concrete technical characterictic described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (5)
1. method of setting up the corresponding relation of circuit frame of video and circuit mileage, the method comprises:
N target device selecting the circuit video to cover;
For each target device in a described n target device, choose respectively m unique point, each unique point for a described m unique point, choose this unique point frame of video in corresponding w frame of video in described circuit video and as the equipment key frame, and calculate the corresponding circuit mileage of this equipment key frame;
Set up the corresponding relation of circuit frame of video and circuit mileage based on equipment key frame and the corresponding circuit mileage of described equipment key frame.
2. method according to claim 1, wherein, by the corresponding circuit mileage of following formula computing equipment key frame:
Z wherein
0, z
nBe respectively the frame of video of starting point of described circuit video and the frame of video of terminal point, x
0, x
nBe respectively the frame of video of described starting point and the corresponding circuit mileage of frame of video of terminal point, z is arbitrary equipment key frame, and x is the corresponding circuit mileage of this arbitrary equipment key frame.
3. method according to claim 1, wherein, described target device comprises with lower any one: railway station, tunnel, bridge, grade separation, road junction, Wayside signal, interval catenary mast, kilometer post, hundred-metre post.
4. the method for circuit mileage location, the method comprises:
For current circuit frame of video z
i, according to the corresponding relation of circuit frame of video and circuit mileage, be chosen in and deserve front circuit frame of video z
iBefore and afterwards, with deserve before circuit frame of video z
iTwo the most contiguous equipment key frame z
1And z
2
According to the corresponding relation of circuit frame of video and circuit mileage, determine and described two equipment key frame z
1And z
2Corresponding circuit mileage x
1And x
2
Calculate described current circuit frame of video z according to following formula
iCorresponding circuit mileage x
i:
The corresponding relation of wherein said circuit frame of video and circuit mileage is determined by the described method of any one according to claim 1-3.
5. the method for circuit frame of video location, the method comprises:
For current circuit mileage x
i, according to the corresponding relation of circuit frame of video and circuit mileage, be chosen in and deserve front circuit mileage x
iBefore and afterwards, with deserve before circuit mileage x
iTwo the most contiguous circuit mileage x
1And x
2
According to the corresponding relation of circuit frame of video and circuit mileage, determine and described two circuit mileage x
1And x
2Corresponding equipment key frame z
1And z
2
Calculate described current circuit mileage x according to following formula
iCorresponding circuit frame of video z
i:
The corresponding relation of wherein said circuit frame of video and circuit mileage is determined by the described method of any one according to claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105708084A CN103164750A (en) | 2012-12-25 | 2012-12-25 | Method for establishing corresponding relation of line video frame and line mileage and locating method |
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|---|---|---|---|
| CN2012105708084A CN103164750A (en) | 2012-12-25 | 2012-12-25 | Method for establishing corresponding relation of line video frame and line mileage and locating method |
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| CN2012105708084A Pending CN103164750A (en) | 2012-12-25 | 2012-12-25 | Method for establishing corresponding relation of line video frame and line mileage and locating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109410368A (en) * | 2018-10-29 | 2019-03-01 | 北京康拓红外技术股份有限公司 | A method of lorry distance travelled is calculated based on train information |
| CN111414518A (en) * | 2020-03-26 | 2020-07-14 | 中国铁路设计集团有限公司 | Video positioning method for railway unmanned aerial vehicle |
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| CN101590865A (en) * | 2009-04-15 | 2009-12-02 | 卡斯柯信号有限公司 | A kind of method that shows facilities for transport and communication and run location thereof |
| CN102521868A (en) * | 2011-11-30 | 2012-06-27 | 中国神华能源股份有限公司 | Railway information visualization method |
| CN102685460A (en) * | 2012-05-17 | 2012-09-19 | 武汉大学 | Video monitoring and cruising method for integrating measurable scene image and electronic map |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040100556A1 (en) * | 2002-10-29 | 2004-05-27 | Oyvind Stromme | Moving virtual advertising |
| CN101590865A (en) * | 2009-04-15 | 2009-12-02 | 卡斯柯信号有限公司 | A kind of method that shows facilities for transport and communication and run location thereof |
| CN102521868A (en) * | 2011-11-30 | 2012-06-27 | 中国神华能源股份有限公司 | Railway information visualization method |
| CN102685460A (en) * | 2012-05-17 | 2012-09-19 | 武汉大学 | Video monitoring and cruising method for integrating measurable scene image and electronic map |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109410368A (en) * | 2018-10-29 | 2019-03-01 | 北京康拓红外技术股份有限公司 | A method of lorry distance travelled is calculated based on train information |
| CN111414518A (en) * | 2020-03-26 | 2020-07-14 | 中国铁路设计集团有限公司 | Video positioning method for railway unmanned aerial vehicle |
| CN111414518B (en) * | 2020-03-26 | 2022-06-14 | 中国铁路设计集团有限公司 | Video positioning method for railway unmanned aerial vehicle |
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Application publication date: 20130619 |
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