CN103997627A - Long and thin visual field video monitoring system and method orientated toward longitudinal long and thin area video monitoring application - Google Patents
Long and thin visual field video monitoring system and method orientated toward longitudinal long and thin area video monitoring application Download PDFInfo
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- CN103997627A CN103997627A CN201410252682.5A CN201410252682A CN103997627A CN 103997627 A CN103997627 A CN 103997627A CN 201410252682 A CN201410252682 A CN 201410252682A CN 103997627 A CN103997627 A CN 103997627A
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Abstract
The invention discloses a long and thin visual field video monitoring system and method orientated toward a longitudinal long and thin area video monitoring application. The long and thin visual field video monitoring system and method are characterized in that the long side direction of a visual field of a camera core is the consistent with the long side direction of a longitudinal long and thin monitoring area, that is installation in the vertical direction is realized, and the longitudinal monitoring range is expanded accordingly. To take a 1080*1920 resolution ratio camera as an example, the longitudinal monitoring range of the camera can be doubled, and therefore the camera is particularly suitable for meeting road monitoring application requirements. For a monitoring system monitoring the situation that a vehicle runs over the lane line, under the same conditions, the visual field coverage road longitudinal monitoring range of a traditional video monitoring system is 40 meters while the visual field coverage road longitudinal monitoring range of the long and thin visual field video monitoring system is 100 meters, so that the monitoring range is improved greatly, and construction cost is reduced.
Description
Technical field
The present invention relates to field of video monitoring, the present invention relates to more precisely a kind of elongated visual field video supervisory systems towards longitudinal elongated area video supervision application, can be used for road supervision and security protection aspect.
Background technology
Video monitoring is having wide application aspect intelligent transportation and security protection, but the movement of video monitoring system shooting is at present to be all that horizontal direction is installed according to the long side direction of visual field, during like this for longitudinal elongated area video surveillance applications, monitoring longitudinal extent limited length, such as taking road monitoring as example, existing video monitoring system shooting movement resolution is made as 1080 × 1920, be A along its longitudinal monitored length of road direction, horizontal monitored length vertical and road direction is B, A is corresponding with 1080 pixels, B is corresponding with 1920 pixels, like this, longitudinally monitoring range limited length.
Summary of the invention
Technical problem to be solved by this invention expands longitudinal elongated area monitoring range.
For solving the problems of the technologies described above, the present invention takes following technical scheme to realize:
Towards elongated visual field video monitoring system and the method thereof of longitudinal elongated area video surveillance applications, comprise shooting movement, movement mounting bracket, pitching rotating mechanism, horizontal rotary mechanism, pitching rotary drive motor, horizontally rotate drive motors, motion controller and video processor, it is characterized in that, the visual field long side direction of shooting movement is consistent with longitudinal elongated guarded region long side direction, be that vertical is installed, shooting movement (1) is installed on and is horizontally rotated (4) on support by movement mounting bracket (2), horizontally rotating support (4) is fixedly connected with pitching drive motors (3), pitching motor (3) drives movement mounting bracket (2) to drive movement pitch rotation, the motor shaft of pitching motor and movement mounting bracket are fixed into one, horizontal drive motor is fixed on base (8), and by motor shaft with horizontally rotate support (4) and be fixedly connected, driving horizontally rotates support and rotates, horizontally rotate to realize shooting movement (1).
The aforesaid elongated visual field video monitoring system towards longitudinal elongated area video surveillance applications, it is characterized in that: motion driver (7) is fixed on base (8), motion driver respectively with pitching drive motors (3) and horizontal drive motor (5), motion driver is connected with shooting movement (1), rear end video processor simultaneously.
The video frequency monitoring method of the aforesaid elongated visual field video monitoring system towards longitudinal elongated area video surveillance applications, it is characterized in that: the video camera that is arranged on road center obtains original image, first original image is overturn, again image is carried out the rotation of certain angle, to dock with general handling procedure.
Aforesaidly first original image is overturn, it is characterized in that: for a two field picture, suppose that original image is src, image after upset is dst, image pixel is that rows is capable, cols row, if image x axle is corresponding with long limit, visual field (cols row), y axle is corresponding with visual field minor face (rows is capable), image is overturn along x axle, the pixel of (x, y) being located is carried out as down conversion: dst (i, j)=src (i, cols-j-1), and to all pixels all carry out this conversion; Image, along the upset of y axle, is carried out as down conversion: dst (i, j)=src (rows-i-1, j), and all pixels are all carried out to this conversion; Image is overturn along y axle again along the upset of x axle, carry out as down conversion: dst (i, j)=src (rows-i-1, cols-j-1), and all pixels are all carried out to this conversion.
The aforesaid rotation of image being carried out to certain angle, it is characterized in that: in the original image of acquisition, suppose any point (x on picture, y), after any one coordinate points (rx0, ry0) is rotated counterclockwise RotaryAngle angle, new coordinate is made as (x1, y1),, according to geometrical relationship, have:
x1＝(x-rx0)*cos(RotaryAngle)+(y-ry0)*sin(RotaryAngle)+rx0；
Y1=(x-rx0) * sin (RotaryAngle)+(y-ry0) * cos (RotaryAngle)+ry0; According to above-mentioned formula, image is carried out to fast rotational at any angle, make image meet general handling procedure docking needs.
The beneficial effect that the present invention reaches:
The present invention is in order to improve the demand of elongated monitoring application as road, the visual field long side direction of shooting movement is installed according to vertical, install by traditional cameras core 90-degree rotation, its longitudinal monitoring range length has become B by A, have 1080 pixel correspondences to become 1920 pixel correspondences, its monitoring range increase is about 2 times.Should be used for saying for road monitoring like this, under same monitoring range requires, its construction cost is reduced to 50%.
Brief description of the drawings
Fig. 1 is elongated visual field of the present invention video monitoring system structural representation.
1. shooting movements in figure, 2. movement mounting bracket, 3. pitching rotary drive motor, 4. horizontally rotates support, 5. horizontally rotates drive motors, 6. hemisphere light path protective cover, 7. motion controller, 8. base
Embodiment
Below in conjunction with drawings and Examples, patent of the present invention is further illustrated.
Elongated visual field video monitoring system and method thereof towards longitudinal elongated area video surveillance applications as shown in Figure 1, wherein: shooting movement 1 is installed on and is horizontally rotated on support 4 by movement mounting bracket 2, horizontally rotating support 4 is fixedly connected with pitching drive motors 3, pitching motor 3 can drive movement mounting bracket 2 to drive movement pitch rotation, horizontal drive motor is fixed on base 8, and with horizontally rotate support 4 and be fixedly connected, driving horizontally rotates support and rotates, horizontally rotate to realize shooting movement 1, motion driver 7 is fixed on base 8, motion driver is used for controlling pitching rotary drive motor 3 and horizontally rotates drive motors 5, motion driver and shooting movement simultaneously, rear end video processor connects, there is the video that receives shooting movement 1 and the function that is transferred to rear end video processor.Shooting movement in traditional video monitoring system is to be that level standard is installed according to visual field long side direction, the present invention is in order to improve the longitudinal extent of longitudinal elongated area video monitoring, and spy's movement of making a video recording is that vertical direction standard is installed according to its visual field long side direction.
Obtaining after original image, by software optimization, image overturn and rotate, make more easily to dock general handling procedure.Taking road monitoring as example, for the video camera that is arranged on road center, if the original image of its acquisition is that the scene of close camera is on the right side of image, away from the scene of camera in image left side, and may be just contrary in another one scene, for same set of handling procedure, first image overturn and rotate processing with regard to needs.
For a two field picture, suppose that original image is src, the image after upset is dst, and image pixel is that rows is capable, cols row, if image x axle is corresponding with long limit, visual field (cols row), y axle is corresponding with visual field minor face (rows is capable), image is overturn along x axle, to (x, y) pixel of locating is carried out as down conversion: dst (i, j)=src (i, cols-j-1), and all pixels are all carried out to this conversion;
In like manner, image, along the upset of y axle, is carried out as down conversion: dst (i, j)=src (rows-i-1, j); In like manner overturn along y axle again along the upset of x axle, carry out as down conversion: dst (i, j)=src (rows-i-1, cols-j-1).
In addition, in the original image of acquisition, the direction of road often has deviation with y direction of principal axis, for the ease of processing, need to carry out to image the rotation of certain angle.Suppose any point (x, y) on picture, after any one coordinate points (rx0, ry0) is rotated counterclockwise RotaryAngle angle, new coordinate is made as (x1, y1)., according to geometrical relationship, have:
x1＝(x-rx0)*cos(RotaryAngle)+(y-ry0)*sin(RotaryAngle)+rx0；
Y1=(x-rx0) * sin (RotaryAngle)+(y-ry0) * cos (RotaryAngle)+ry0; Can carry out fast rotational at any angle to image according to this formula, make image meet easy-to-handle requirement.
Experiment shows, under system similarity condition of the present invention, increases and is about 2 times than longitudinal monitoring range of traditional visual monitor system.Such as ride the marginal supervisory control system in padding machine road with vehicle, under similarity condition, covering path longitudinal monitoring range in traditional video surveillance system visual field is 40 meters, and video monitoring system of the present invention visual field covering path longitudinal extent is 100 meters, greatly improves monitoring range and reduced construction cost.
In addition to the implementation; all employings are equal to replaces or technical scheme that the form of equivalent transformation obtains; within all dropping on protection scope of the present invention; also be to be that horizontal direction standard is installed according to visual field long side direction such as the movement of current gunlock video camera; technical solution of the present invention is equally applicable to gunlock video camera; the movement of can being made a video recording is that road direction is installed according to movement visual field long side direction, and vertical direction is installed, to improve its visual field covering path or guarded region longitudinal extent.
Claims (5)
1. towards elongated visual field video monitoring system and the method thereof of longitudinal elongated area video surveillance applications, comprise shooting movement, movement mounting bracket, pitching rotating mechanism, horizontal rotary mechanism, pitching rotary drive motor, horizontally rotate drive motors, motion controller and video processor, it is characterized in that, the visual field long side direction of shooting movement is consistent with longitudinal elongated guarded region long side direction, be that vertical is installed, shooting movement (1) is installed on and is horizontally rotated (4) on support by movement mounting bracket (2), horizontally rotating support (4) is fixedly connected with pitching drive motors (3), pitching motor (3) drives movement mounting bracket (2) to drive movement pitch rotation, the motor shaft of pitching motor and movement mounting bracket are fixed into one, horizontal drive motor is fixed on base (8), and by motor shaft with horizontally rotate support (4) and be fixedly connected, driving horizontally rotates support and rotates, horizontally rotate to realize shooting movement (1).
2. the elongated visual field video monitoring system towards longitudinal elongated area video surveillance applications according to claim 1, it is characterized in that: motion driver (7) is fixed on base (8), motion driver respectively with pitching drive motors (3) and horizontal drive motor (5), motion driver is connected with shooting movement (1), rear end video processor simultaneously.
3. the video frequency monitoring method of the elongated visual field video monitoring system towards longitudinal elongated area video surveillance applications according to claim 1, it is characterized in that: the video camera that is arranged on road center obtains original image, first original image is overturn, again image is carried out the rotation of certain angle, to dock with general handling procedure.
4. according to claim 3ly first original image is overturn, it is characterized in that:
For a two field picture, suppose that original image is src, the image after upset is dst, and image pixel is that rows is capable, cols row, if image x axle is corresponding with long limit, visual field (cols row), y axle is corresponding with visual field minor face (rows is capable), image is overturn along x axle, to (x, y) pixel of locating is carried out as down conversion: dst (i, j)=src (i, cols-j-1), and all pixels are all carried out to this conversion;
Image, along the upset of y axle, is carried out as down conversion: dst (i, j)=src (rows-i-1, j), and all pixels are all carried out to this conversion; Image is overturn along y axle again along the upset of x axle, carry out as down conversion: dst (i, j)=src (rows-i-1, cols-j-1), and all pixels are all carried out to this conversion.
5. the rotation of image being carried out to certain angle according to claim 3, it is characterized in that: in the original image of acquisition, suppose any point (x on picture, y), after any one coordinate points (rx0, ry0) is rotated counterclockwise RotaryAngle angle, new coordinate is made as (x1, y1),, according to geometrical relationship, have:
x1＝(x-rx0)*cos(RotaryAngle)+(y-ry0)*sin(RotaryAngle)+rx0；
Y1=(x-rx0) * sin (RotaryAngle)+(y-ry0) * cos (RotaryAngle)+ry0; According to above-mentioned formula, image is carried out to fast rotational at any angle, make image meet general handling procedure docking needs.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104363412A (en) * | 2014-10-29 | 2015-02-18 | 南京茵默维电子科技有限公司 | Large view field supervision system and method of long and narrow area |
| CN104869369A (en) * | 2015-06-10 | 2015-08-26 | 国网山东济南市历城区供电公司 | Multi-angle electric video monitoring system |
| CN109587408A (en) * | 2018-12-14 | 2019-04-05 | 北京大视景科技有限公司 | A kind of large scene video fusion covering method that single-column type monitoring camera is vertically installed |
| CN115128690A (en) * | 2022-09-01 | 2022-09-30 | 深圳潜行创新科技有限公司 | Floating type underwater detection device with underwater rotary camera and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104363412A (en) * | 2014-10-29 | 2015-02-18 | 南京茵默维电子科技有限公司 | Large view field supervision system and method of long and narrow area |
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| CN109587408A (en) * | 2018-12-14 | 2019-04-05 | 北京大视景科技有限公司 | A kind of large scene video fusion covering method that single-column type monitoring camera is vertically installed |
| CN115128690A (en) * | 2022-09-01 | 2022-09-30 | 深圳潜行创新科技有限公司 | Floating type underwater detection device with underwater rotary camera and method |
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Application publication date: 20140820 |