CN102231795A - Mounting method and mounting system for road monitoring camera - Google Patents
Mounting method and mounting system for road monitoring camera Download PDFInfo
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- CN102231795A CN102231795A CN2011101725993A CN201110172599A CN102231795A CN 102231795 A CN102231795 A CN 102231795A CN 2011101725993 A CN2011101725993 A CN 2011101725993A CN 201110172599 A CN201110172599 A CN 201110172599A CN 102231795 A CN102231795 A CN 102231795A
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Abstract
The embodiment of the invention discloses a mounting method and a mounting system for a road monitoring camera, realizing the accurate mounting of the monitoring camera and belonging to the technical filed of intelligent traffic. The method comprises the following steps: establishing a standard mounting information table contain parameters and at least one mounting requirement of the monitoring camera; respectively acquiring lane distribution drawings corresponding to different width and quantity of lanes under various standard mounting information and establishing a lane distribution drawing gallery; based on sight range and central distance specified in the mounting requirement, acquiring corresponding mounting height, lens focal length and imager size of the camera from the information table and acquiring a corresponding lane distribution drawing from the lane distribution drawing gallery; comparing a lane image shot by the camera mounted according to the mounting height, lens focal length and the imager size of the camera with the acquired lane distribution drawing; and adjusting horizontal position and depression angle of the camera according to comparison results to finish the mounting of the road monitoring camera.
Description
Technical field
The present invention relates to the intelligent transport technology field, relate in particular to a kind of installation method and installation system of road monitoring camera.
Background technology
Along with the development of intelligent monitoring technology, monitoring camera is widely used in the monitoring to the vehicle that travels in the road.
In the prior art, in order to realize best monitoring range and monitoring angle, in the installation process of monitoring camera, normally tentatively determine the setting height(from bottom) of monitoring camera according to installation requirement, by the workmen monitoring camera is installed on the portal frame, then need the workmen according to the requirement of the field range of taking, rely on installation experience, setting height(from bottom), horizontal level and the luffing angle of manual adjusting monitoring camera, this has brought very large difficulty for undoubtedly workmen's installment and debugging, also can't guarantee to install effect, cause installation effectiveness low.
Summary of the invention
Embodiments of the invention technical problem to be solved is to provide a kind of installation method and installation system of road monitoring camera, can realize that monitoring camera installs accurately, thereby made things convenient for workmen's use, greatly reduced because the error that human factor is brought has improved installation effectiveness and effect is installed.
For solving the problems of the technologies described above, embodiments of the invention adopt following technical scheme:
A kind of installation method of road monitoring camera comprises:
Set up the parameter of monitoring camera and the standard mount message table of at least a installation requirement, and obtain respectively different lane widths and lane line distribution map corresponding to track quantity under the various standard mount messages, set up lane line distribution picture library, wherein the parameter of monitoring camera comprises: lens focus, camera imaging device size, and installation requirement comprises: the setting height(from bottom) of monitoring camera, centre distance and field range;
According to field range and the centre distance of installation requirement, from described information table, obtain corresponding setting height(from bottom), lens focus, camera imaging device size and from lane line distribution picture library, obtain corresponding lane line distribution map;
To compare according to the captured lane line image of the described monitoring camera that the setting height(from bottom), lens focus, the camera imaging device size that obtain are installed and the described lane line distribution map of acquisition, according to comparison result, regulate horizontal level and the depression angle of described monitoring camera, the lane line in the captured lane line image is overlapped with lane line in the described lane line distribution map. Described centre distance is the horizontal range of position, corresponding road surface, the center of photographic images and described monitoring camera, and described field range is to go up most along distance and the most lower difference along distance, wherein,
Described going up most along distance is the horizontal range that goes up position, corresponding road surface and described monitoring camera along the position most of photographic images,
Described the most lower be the horizontal range of photographic images the most lower position, corresponding road surface and described monitoring camera along the position along distance.
Compare at described will preliminary mounted described monitoring camera captured lane line image and described lane line distribution map and also to comprise:
Judge whether described monitoring camera is installed accurately,
If the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map, then comparison result is for installing accurately, and points out according to comparison result;
If the lane line in the captured lane line image does not overlap with lane line in the described lane line distribution map, then comparison result is inaccurate for installing, and points out image according to comparison result.
Lane line in the described captured lane line image overlaps with the lane line in the described lane line distribution map:
Calculate lane line in the captured lane line image and the error of the lane line in the described lane line distribution map, if described error, thinks then that the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map less than default error amount.
Described error is the average distance that the lane line in the captured lane line image departs from respect to the lane line in the described lane line distribution map.
A kind of installation system of road monitoring camera comprises:
Computing unit, be used for setting up the parameter of monitoring camera and the standard mount message table of at least a installation requirement, and obtain respectively different lane widths and lane line distribution map corresponding to track quantity under the various standard mount messages, set up lane line distribution picture library, wherein the parameter of monitoring camera comprises: lens focus, camera imaging device size, and installation requirement comprises: the setting height(from bottom) of monitoring camera, centre distance and field range;
Memory cell is used for storing standard mount message table and the lane line distribution picture library that described computing unit obtains;
Selected cell is used for field range and centre distance according to installation requirement, obtains corresponding setting height(from bottom), lens focus, camera imaging device size and obtain corresponding lane line distribution map from described standard mount message table from lane line distribution picture library;
Comparing unit is used for and will compares according to the captured lane line image of the described monitoring camera that the setting height(from bottom), lens focus, the camera imaging device size that obtain are installed and the described lane line distribution map of acquisition;
Regulon is used for regulating horizontal level and the depression angle of described monitoring camera according to comparison result, and the lane line in the captured lane line image is overlapped with lane line in the described lane line distribution map.
Described centre distance is the horizontal range of position, corresponding road surface, the center of photographic images and described monitoring camera, and described field range is to go up most along distance and the most lower difference along distance, wherein,
Described going up most along distance is the horizontal range that goes up position, corresponding road surface and described monitoring camera along the position most of photographic images,
Described the most lower be the horizontal range of photographic images the most lower position, corresponding road surface and described monitoring camera along the position along distance.
The installation system of described road monitoring camera also comprises:
Judging unit is used for judging whether described monitoring camera is installed accurately,
If the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map, then comparison result is for installing accurately, and points out according to comparison result;
If the lane line in the captured lane line image does not overlap with lane line in the described lane line distribution map, then comparison result is inaccurate for installing, and points out according to comparison result.
Described computing unit also is used for calculating the error of lane line and the lane line in the described lane line distribution map of captured lane line image, if described error, thinks then that the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map less than default error amount.
Described error is the average distance that the lane line in the captured lane line image departs from respect to the lane line in the described lane line distribution map.
The installation method of the road monitoring camera of the embodiment of the invention and installation system, by according to the parameter of monitoring camera, setting height(from bottom) and the centre distance of monitoring camera, calculate corresponding field range, according to width and the track quantity in track, draw corresponding lane line distribution map; Then according to the requirement of erecting bed, obtain corresponding field range, setting height(from bottom), lens focus, camera imaging device size and lane line distribution map, and monitoring camera tentatively is installed; The lane line image that preliminary mounted monitoring camera is captured and lane line distribution map are compared again; Regulate at last horizontal level and the depression angle of monitoring camera according to comparison result, lane line in the captured lane line image is overlapped with lane line in the lane line distribution map, can realize that monitoring camera installs accurately, thereby made things convenient for workmen's use, greatly reduced because the error that human factor is brought has improved installation effectiveness and effect is installed.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet of the installation method of road monitoring camera in the embodiment of the invention;
Fig. 2 is the schematic diagram of monitoring camera photographic images in the embodiment of the invention;
Fig. 3 is the schematic diagram of lane line distribution map in the embodiment of the invention;
Fig. 4 is the schematic diagram the during stack of the lane line in actual lane line and the lane line distribution map in the embodiment of the invention;
Fig. 5 is the structural representation of the installation system of road monitoring camera in the embodiment of the invention.
Description of reference numerals:
31, distribution map lane line; 32, photographic images center; 33, actual lane line.
The specific embodiment
The embodiment of the invention provides a kind of installation method and installation system of road monitoring camera, has realized the accurate installation of monitoring camera, thereby has greatly improved installation effectiveness and effect is installed.
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Embodiment one
Present embodiment provides a kind of installation method of road monitoring camera, and as shown in Figure 1, the method comprises:
The standard mount message table of step 101, the parameter of setting up monitoring camera and at least a installation requirement, and obtain respectively different lane widths and lane line distribution map corresponding to track quantity under the various standard mount messages, set up lane line distribution picture library.
Wherein the parameter of monitoring camera comprises: lens focus, camera imaging device size, installation requirement comprises: the setting height(from bottom) of monitoring camera, centre distance and field range.
Wherein, centre distance is the horizontal range of position, corresponding road surface, photographic images center and monitoring camera, and field range deducts the most lower difference along distance for going up most along distance; Going up most along distance is the horizontal range that photographic images is gone up position, corresponding road surface and monitoring camera along the position most; The most lower along distance be photographic images the most lower along the position horizontal range of position, corresponding road surface and described monitoring camera; Camera imaging device size refers to the size (such as the CCD chip) of imaging photosensitive chip, comprises the height and width of camera imaging device.
National highway engineering standard (compiling JTJ 001-97), that is to say that for standard road, the width in its runway track is consistent to the clearer and more definite requirement of being designed with of road width. Therefore, for the road of following same standard, the identical road of number of track-lines of namely driving a vehicle, the height of the monitoring camera of installing also is identical with angle basically.
Based on mentioned above principle, the embodiment of the invention is according to the parameter of setting height(from bottom), centre distance and monitoring camera commonly used commonly used, calculate the lower resulting field range of different setting height(from bottom)s, centre distance and the combination of monitoring camera parameter values, and the field range that combinations of values and each combinations of values of all setting height(from bottom)s, centre distance and monitoring camera parameter calculates made standard mount message table, in order in follow-up step, consult. Obtain simultaneously under the various installation situation that the combinations of values of setting height(from bottom), centre distance and monitoring camera parameter forms, the corresponding lane line distribution map of the width in different tracks and track quantity forms lane line distribution picture library.
The below is further detailed this step.
As shown in Figure 2, the point at note monitoring camera place is the O point, intersecting vertically of monitoring camera and ground a little is the C point, and lens focus is f, and the height of monitoring camera imager is h, the setting height(from bottom) of monitoring camera is H(OC), centre distance is d(OD), going up along distance most is y1(OA), the most lower is y0(OB along distance), field range is L (AB), L=y1-y0. α is the angle between OC and the OB, and β is angle between OB and the OD or the angle between OA and the OD, and θ is the angle between OC and the OD, and ω is the angle between OA and the OC, and the regulation monitoring camera just is positioned at the middle position of road, as seen from the figure, because alpha+beta=θ, ω-β=θ, so
Obtain by computing:
In actual applications, the high h that supposes the camera imaging device is 5.3mm; Lens focus is that f is generally 25mm or 35mm; Setting height(from bottom) H is generally 6 meters, 6.5 meters or 7 meters, centre distance is that d generally has 20 meters, 23 meters or 28 meters these several specifications, therefore, in the situation that above-mentioned numerical value is determined, can calculate the value of y1, y0, result of calculation is listed as into standard mount message table table 1, and following table is the part of table 1:
Table 1:
| Lens focus f (mm) | Setting height(from bottom) H(rice) | Centre distance d(rice) | The most lower to y0 (rice) | Go up most along y1 (rice) | Field range L(rice) | |
| 1 | 25.00 | 6.00 | 20.00 | 14.31 | 31.91 | 17.60 |
| 2 | 25.00 | 6.50 | 20.00 | 14.56 | 30.70 | 16.14 |
| 3 | 25.00 | 7.00 | 20.00 | 14.78 | 29.75 | 14.97 |
| 4 | 35.00 | 6.00 | 28.00 | 20.35 | 44.00 | 23.65 |
| 5 | 35.00 | 6.50 | 28.00 | 20.74 | 42.28 | 21.54 |
| 6 | 35.00 | 7.00 | 28.00 | 21.08 | 40.92 | 19.84 |
| 7 | 25.00 | 6.00 | 23.00 | 15.90 | 39.81 | 23.91 |
| 8 | 25.00 | 6.50 | 23.00 | 16.23 | 37.91 | 21.68 |
| 9 | 25.00 | 7.00 | 23.00 | 16.51 | 36.43 | 19.92 |
After standard mount message table completes, again according to width and the track quantity in the track of national highway engineering standard (compile JTJ 001-97) regulation, parameter according to the various installation requirements in the standard mount message table and corresponding monitoring camera thereof, select suitable monitoring camera, and under the environment of various tracks, comprise the combination that read soon in different track quantity and track, the standard of carrying out under the various installation requirements is installed, and the lane line image of shooting standard when installing, from the lane line image of taking, extract lane line information, coordinate such as lane line, further calculate according to the ratio of image and draw corresponding lane line distribution map, many lane line distribution maps have formed lane line distribution picture library. Lane line distribution map when the width that Figure 3 shows that two runways, track is 3.75 meters. As seen, lane line 31 has three among the figure, on the line of demarcation of the lane line in the middle of photographic images center 32 is positioned at.
Described lane line distribution map can adopt the form storage of lane line parameter, also can adopt the form storage of image. When the lane line distribution map adopts the form storage of lane line parameter, at first take different lane widths corresponding under the various installation parameter combinations of values and the standard installation diagram picture of quantity, method by rim detection or texture detection, from standard installation diagram picture, extract lane information, such as the coordinate of each lane line in the image, and the coordinate of preserving each lane line is in the lane line distribution map. If the lane line distribution map then is depicted as transparent lane line distribution map with the lane information that extracts with the form storage of image, indicate lane line with the black line and distribute, save as the lane line distribution map, as shown in Figure 3.
In the process of actual installation, according to the requirement of erecting bed to field range and centre distance, the anti-standard mount message table that obtains in the step 101 of looking into obtains field range, setting height(from bottom), lens focus, camera imaging device size and the lane line distribution map of suitable correspondence. For instance, suppose that the field range L that the erecting bed requires is 15 meters, centre distance d is 20 m, the monitoring camera imager that uses is CCD, according to standard mount message table as can be known, field range 15(14.97) m, the corresponding setting height(from bottom) of centre distance 20 m are that 7 m, lens focus are that the high h of 25 mm, camera imaging device is 5.3mm, and centre distance d is 20 m.
After determining the parameters such as setting height(from bottom), lens focus, camera imaging device size, monitoring camera is tentatively installed, such as setting up, fix etc.
After preliminary installation monitoring camera was finished, usage monitoring camera road pavement was taken continuously, obtains erecting bed lane line image, then the lane line distribution map of erecting bed lane line image and acquisition is compared. A kind of implementation as present embodiment, the shape that the image of lane line distribution map can be translucent is superimposed upon on the pavement image of continuous shooting, as shown in Figure 4, the color of lane line is black (such as 31 among Fig. 4) in the lane line distribution map, and is just the opposite with white lane line (such as 33 among Fig. 4) color on shooting road surface. Then the white lane line image on the image road surface of shooting and the black line in the lane line distribution map are compared. After the comparison, can judge tentatively whether monitoring camera is installed accurately, if the lane line in the captured lane line image overlaps with lane line in the lane line distribution map, illustrate that then comparison result is to install accurately, and point out by interface or voice according to comparison result; If the lane line in the captured lane line image does not overlap with lane line in the lane line distribution map, illustrate that then comparison result is to install inaccurately, and points out by interface or voice according to comparison result, so that installation personnel is further debugged. The content of interface and voice suggestion can be present installation results, such as " install inaccurate, 2 centimetres of errors " or " please turn down the elevation angle of monitoring camera " etc.
Need to prove that in the present embodiment, the concrete determination methods of " coincidence " is: (1) range estimation. If to the installation accuracy no requirement (NR), can take the range estimation mode, directly observe white line whether overlap with black line in the distribution map of track. (2) account form. When accurately installing, need default error amount, and calculate lane line in the captured lane line image and the error of the lane line in the lane line distribution map, if error is less than default error amount, think that then the lane line in the captured lane line image overlaps with lane line in the lane line distribution map, then point out installation personnel, install and finish.
Before carrying out error calculating, the method that at first detects by rim detection or texture is extracted lane information, such as the coordinate of each lane line in the image from the lane line image of shooting.
As wherein a kind of embodiment of the present invention, the average distance that the error here can depart from respect to the lane line in the lane line distribution map (such as 31 among Fig. 4) for the lane line in the captured lane line image (such as 33 among Fig. 4), the computing formula of average distance is as follows:
The concrete meaning of this formula, as shown in Figure 4, wherein
Represent on the actual lane line 33 the x coordinate figure o'clock on y is capable,
Indicate on the lane line 31 in the lane line distribution map x coordinate figure o'clock on y is capable. The total line number of n for participating in calculating.
If the lane line in the captured lane line image does not overlap with lane line in the lane line distribution map, namely calculate the error of lane line in the captured lane line image and the lane line in the lane line distribution map greater than default error amount, then the explanation installation is inaccurate, then debugs.
According to comparison result, regulate horizontal level and the depression angle of described monitoring camera, the lane line in the captured lane line image is overlapped with lane line in the described lane line distribution map.
After regulating the horizontal level and depression angle of monitoring camera, again take the image of lane line, then judge whether the lane line in the captured lane line image overlaps with lane line in the lane line distribution map, the determination methods that overlaps is the same, if do not overlap the lane line that then calculates shooting and the error of the lane line in the lane line distribution map, until, showing the lane line in the lane line image of shooting less than default error amount, error overlaps with lane line in the lane line distribution map.
In the installation process of reality, the horizontal level of monitoring camera is installed in the middle of road usually, that is to say, in the step 101 when drawing corresponding lane line distribution map, also be to draw according to the middle that monitoring camera is installed in road, this mounting means has not only made things convenient for the drafting of lane line distribution map, also helps more accurately vehicle is monitored.
The installation method of the road monitoring camera of present embodiment, by setting height(from bottom) and the centre distance according to the lens focus of monitoring camera, camera imaging device size, monitoring camera, calculate corresponding field range, according to width and the track quantity in track, draw corresponding lane line distribution map; Then according to the requirement of erecting bed to field range and centre distance, obtain corresponding setting height(from bottom), parameter and the lane line distribution map of monitoring camera, and monitoring camera tentatively is installed; The lane line image that preliminary mounted monitoring camera is captured and lane line distribution map are compared again; Regulate at last horizontal level and the depression angle of monitoring camera according to comparison result, lane line in the captured lane line image is overlapped with lane line in the lane line distribution map, can realize that monitoring camera installs accurately, thereby made things convenient for workmen's use, greatly reduced because the error that human factor is brought has improved operating efficiency and effect is installed.
Embodiment two
Present embodiment provides a kind of installation system of road monitoring camera, as shown in Figure 5, comprising: computing unit 51, memory cell 52, selected cell 53, comparing unit 54, regulon 55, wherein:
Comparing unit 54 is used for and will compares according to the captured lane line image of the described monitoring camera that the setting height(from bottom), lens focus, the camera imaging device size that obtain are installed and the described lane line distribution map of acquisition;
Wherein, centre distance is the horizontal range of position, corresponding road surface, photographic images center and monitoring camera; Field range is to go up most along distance and the most lower difference along distance, as: field range deducts the most lower difference along distance for going up most along distance; Going up most along distance is the horizontal range that photographic images is gone up position, corresponding road surface and monitoring camera along the position most; The most lower along distance be photographic images the most lower along the position horizontal range of position, corresponding road surface and described monitoring camera; Camera imaging device size refers to the size (such as the CCD chip) of imaging photosensitive chip, comprises the height and width of camera imaging device.
The embodiment of the invention is according to installation code commonly used and the parameter of camera commonly used, calculate resulting field range under the different combinations of values, and all combinations of values and result of calculation made standard mount message table, be stored in the memory cell 52, in order in follow-up step, consult. Draw simultaneously under each combinations of values, the various feasible combination that comprise different field ranges, centre distance, setting height(from bottom), lens focus, camera imaging device size, width and lower corresponding lane line distribution map of track quantity situation in different tracks are stored in the memory cell 52 equally.
In the process of actual installation, according to the requirement of erecting bed to described field range and centre distance, counter look in the memory cell 52 standard mount message table and, obtain corresponding setting height(from bottom), lens focus, camera imaging device size, and search lane line distribution map corresponding in the lane line distribution picture library, then monitoring camera is carried out preliminary installation.
After preliminary installation monitoring camera was finished, usage monitoring camera road pavement was taken, and obtains the lane line image, then lane line image and the lane line distribution map taken is compared.
Further, the installation system of the road monitoring camera of present embodiment also comprises:
Judging unit is used for judging whether described monitoring camera is installed accurately, if the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map, then comparison result is accurate for installing, and points out according to comparison result, the installation end; If the lane line in the captured lane line image does not overlap with lane line in the described lane line distribution map, then comparison result is inaccurate for installing, and point out according to comparison result, then regulate horizontal level and the depression angle of described monitoring camera, the lane line in the captured lane line image is overlapped with lane line in the described lane line distribution map.
The computing unit 51 of present embodiment also is used for further calculating the lane line of captured lane line image and the error of the lane line in the described lane line distribution map, if described error is less than default error amount, think that then the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map, as wherein a kind of embodiment of the present invention, the average distance that the error here can depart from respect to the lane line in the lane line distribution map for the lane line in the captured lane line image.
If the lane line in the captured lane line image does not overlap with lane line in the lane line distribution map, namely calculate the error of lane line in the captured lane line image and the lane line in the lane line distribution map greater than default error amount, then explanation is installed inaccurate, after continuing to regulate the horizontal level and depression angle of monitoring camera, again take the image of lane line, then calculate lane line in the captured lane line image and the error of the lane line in the lane line distribution map, until, showing the lane line in the lane line image of shooting less than default error amount, error overlaps with lane line in the lane line distribution map.
Similar among the detailed operation process of each unit of present embodiment and the embodiment one repeats no more again.
The installation system of the road monitoring camera of present embodiment, by setting height(from bottom) and the centre distance of computing unit according to the lens focus of monitoring camera, camera imaging device size, monitoring camera, calculate corresponding field range, according to width and the track quantity in track, draw corresponding lane line distribution map; The result of calculation of cell stores computing unit; Then selected cell obtains corresponding setting height(from bottom), lens focus, camera imaging device size and lane line distribution map according to the requirement of erecting bed to described field range and centre distance, and monitoring camera tentatively is installed; Comparing unit lane line image and lane line distribution map that more preliminary mounted monitoring camera is captured is compared; Regulate at last horizontal level and the depression angle of monitoring camera according to the comparison result regulon, lane line in the captured lane line image is overlapped with lane line in the lane line distribution map, can realize that monitoring camera installs accurately, thereby made things convenient for workmen's use, greatly reduced because the error that human factor is brought has improved operating efficiency and effect is installed.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better embodiment in a lot of situation. Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk such as computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (10)
1. the installation method of a road monitoring camera is characterized in that, comprising:
Set up the parameter of monitoring camera and the standard mount message table of at least a installation requirement, and obtain respectively different lane widths and lane line distribution map corresponding to track quantity under the various standard mount messages, set up lane line distribution picture library, wherein the parameter of monitoring camera comprises: lens focus, camera imaging device size, and installation requirement comprises: the setting height(from bottom) of monitoring camera, centre distance and field range;
According to field range and the centre distance of installation requirement, from described information table, obtain corresponding setting height(from bottom), lens focus, camera imaging device size and from lane line distribution picture library, obtain corresponding lane line distribution map;
To compare according to the captured lane line image of the described monitoring camera that the setting height(from bottom), lens focus, the camera imaging device size that obtain are installed and the described lane line distribution map of acquisition, according to comparison result, regulate horizontal level and the depression angle of described monitoring camera, the lane line in the captured lane line image is overlapped with lane line in the described lane line distribution map.
2. the installation method of road monitoring camera according to claim 1, it is characterized in that described centre distance is the horizontal range of position, corresponding road surface, the center of photographic images and described monitoring camera, described field range is to go up most along distance and the most lower difference between distance, wherein
Described going up most along distance is the horizontal range that goes up position, corresponding road surface and described monitoring camera along the position most of photographic images,
Described the most lower be the horizontal range of photographic images the most lower position, corresponding road surface and described monitoring camera along the position along distance.
3. the installation method of road monitoring camera according to claim 1, it is characterized in that, to compare according to the captured lane line image of the described monitoring camera that the setting height(from bottom), lens focus, the camera imaging device size that obtain are installed and the described lane line distribution map of acquisition, also comprise:
Judge whether described monitoring camera is installed accurately,
If the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map, then comparison result is for installing accurately, and points out according to comparison result;
If the lane line in the captured lane line image does not overlap with lane line in the described lane line distribution map, then comparison result is inaccurate for installing, and points out according to comparison result.
4. the installation method of road monitoring camera according to claim 1 is characterized in that, the lane line in the described captured lane line image overlaps with the lane line in the described lane line distribution map and is:
Calculate lane line in the captured lane line image and the error of the lane line in the described lane line distribution map, if described error, thinks then that the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map less than default error amount.
5. the installation method of road monitoring camera according to claim 4 is characterized in that, described error is the average distance that the lane line in the captured lane line image departs from respect to the lane line in the described lane line distribution map.
6. the installation system of a road monitoring camera is characterized in that, comprising:
Computing unit, be used for setting up the parameter of monitoring camera and the standard mount message table of at least a installation requirement, and obtain respectively different lane widths and lane line distribution map corresponding to track quantity under the various standard mount messages, set up lane line distribution picture library, wherein, the parameter of monitoring camera comprises: lens focus, camera imaging device size, and installation requirement comprises: the setting height(from bottom) of monitoring camera, centre distance and field range;
Memory cell is used for storing standard mount message table and the lane line distribution picture library that described computing unit obtains;
Selected cell is used for field range and centre distance according to installation requirement, obtains corresponding setting height(from bottom), lens focus, camera imaging device size and obtain corresponding lane line distribution map from described standard mount message table from lane line distribution picture library;
Comparing unit is used for and will compares according to the captured lane line image of the described monitoring camera that the setting height(from bottom), lens focus, the camera imaging device size that obtain are installed and the described lane line distribution map of acquisition;
Regulon is used for regulating horizontal level and the depression angle of described monitoring camera according to comparison result, and the lane line in the captured lane line image is overlapped with lane line in the described lane line distribution map.
7. the installation system of road monitoring camera according to claim 6 is characterized in that,
Described centre distance is the horizontal range of position, corresponding road surface, the center of photographic images and described monitoring camera, and described field range is to go up most along distance and the most lower difference along distance, wherein,
Described going up most along distance is the horizontal range that goes up position, corresponding road surface and described monitoring camera along the position most of photographic images,
Described the most lower be the horizontal range of photographic images the most lower position, corresponding road surface and described monitoring camera along the position along distance.
8. the installation system of road monitoring camera according to claim 6 is characterized in that, also comprises:
Judging unit is used for judging whether described monitoring camera is installed accurately,
If the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map, then comparison result is for installing accurately, and points out according to comparison result;
If the lane line in the captured lane line image does not overlap with lane line in the described lane line distribution map, then comparison result is inaccurate for installing, and points out according to comparison result.
9. the installation system of road monitoring camera according to claim 6, it is characterized in that, described computing unit also is used for calculating the error of lane line and the lane line in the described lane line distribution map of captured lane line image, if described error, thinks then that the lane line in the captured lane line image overlaps with lane line in the described lane line distribution map less than default error amount.
10. the installation system of road monitoring camera according to claim 9 is characterized in that, described error is the average distance that the lane line in the captured lane line image departs from respect to the lane line in the described lane line distribution map.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110172599 CN102231795B (en) | 2011-06-24 | 2011-06-24 | Mounting method and mounting system for road monitoring camera |
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| CN109741399A (en) * | 2018-12-07 | 2019-05-10 | 苏州中科广视文化科技有限公司 | Precomputation camera calibration method based on rotary taking |
| CN111327830A (en) * | 2020-03-27 | 2020-06-23 | 苏州科达科技股份有限公司 | Erection parameter acquisition system, method and device of image acquisition assembly and storage medium |
| CN111683241A (en) * | 2019-03-11 | 2020-09-18 | 西安光启未来技术研究院 | Method and system for rapidly measuring distance of visual field blind area of camera |
| CN111737510A (en) * | 2020-05-28 | 2020-10-02 | 杭州视在数科信息技术有限公司 | Label processing method and application for road traffic scene image algorithm |
| CN112001358A (en) * | 2020-09-08 | 2020-11-27 | 哈尔滨市科佳通用机电股份有限公司 | Highway frontier defense safety inspection system |
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