CN102510474B - 360-degree panorama monitoring system - Google Patents
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Abstract
The invention provides a 360-degree panorama monitoring system which comprises a camera module, a video acquisition module, a video processing module and a video display module, wherein the camera module consists of 11 paths of cameras positioned on the surface of a sphere; the 11 paths of cameras are regularly distributed on the upper surface and lower surface of the sphere, and are inter-combined with one another to form a 360-degree panorama monitoring network without dead corners, so that the monitoring system can acquire video information of a panorama, therefore, all-round and high-quality 360-degree panorama monitoring is realized really; and the 360-degree panorama monitoring system is high in application prospect.
Description
Technical field
The present invention relates to Video Supervision Technique, particularly a kind of 360 degree overall view monitoring systems in supervising device.
Background technology
Video camera is a pith of supervisory control system, there are the problems such as the angle of visual field is little, blind area is many in common camera at present, and can carry out the method that in the system of 360 degree overall view monitorings, splicing again or wide-angle fisheye camera lens shooting are taken in the timesharing of employing one camera mostly.But timesharing is taken can't see panoramic picture in real time, and the shooting success rate is not high; Adopt wide-angle fish eye lens photographing panorama picture, its resolution changes along with the angle of visual field and different, and the central ring angular resolution is high and the lens edge angular resolution is low, causes after the distortion correction image border often smudgy, is difficult to recognition object.
Monitoring deficiency for fear of single camera, usually adopt on same video camera a plurality of monitoring heads are installed, realize 360 degree overall view monitorings, but the camera structure of existing integrated a plurality of monitoring heads is comparatively huge, and expensive, although can realize overall view monitoring, but the inside and outside ratio difference of the picture of taking, be unfavorable for that the supervisor determines orientation and the size of monitored object, in addition, this video camera exists can not monitor panorama in real time, by splicing, also processes and can not reach seamless spliced problem.
Summary of the invention
Technical purpose of the present invention is for the above-mentioned state of the art, and a kind of 360 degree overall view monitoring systems are provided, can be in real time, 360 degree panoramas realize monitoring without ground, dead angle to monitored object.
The present invention realizes that the technical scheme that above-mentioned technical purpose adopts is: a kind of 360 degree overall view monitoring systems, comprise that photographing module, video acquisition module, video processing module and video display module form, the panoramic video information of described photographing module collection is sent to video processing module and processes after video acquisition module receives, and finally by video display module, is shown; Wherein, photographing module is comprised of 11 cameras that are positioned at spherome surface; The central axis of described 11 cameras comes together in the centre of sphere; The plane of symmetry centered by the face of centre of sphere place, described spherome surface is divided into spheroid upper surface and spheroid lower surface, five cameras are positioned at the spheroid upper surface, be the regular pentagon parallel with the Central Symmetry face and distribute, and the central axis of each camera and Central Symmetry face are 26.5 degree angles; Five cameras are positioned at the spheroid lower surface, be the regular pentagon parallel with the Central Symmetry face and distribute, and the central axis of each camera and Central Symmetry face are 26.5 degree angles; Arbitrary camera in five cameras of described spheroid upper surface is projected in the point midway of adjacent two camera lines that the spheroid lower surface is corresponding with it; The another one camera is positioned at the central axis of spheroid upper surface, this camera vertically through the Central Symmetry face centre of sphere; Described spheroid is supported by pole, and described rod axis is vertically through the Central Symmetry face centre of sphere.
The horizontal view angle of described each camera is preferably more than and equals 72 degree, and vertical angle of view is more than or equal to 53 degree, more preferably each 100Du, vertical angle of view, camera horizontal view angle 76 degree.
Described each camera is preferably CCD or CMOS camera lens.
As preferably, described video processing module comprises image calibration module, image rectification module, image cylindrical surface projecting module and Image Mosaics module, wherein,
Described image calibration module is for determining video camera internal reference and distortion parameter;
Described image rectification module is for the distortion of correcting image;
Due to the imaging plane of each camera on different planes, for a certain view space, all topographies that each camera is taken at same focal length, same time by described image cylindrical surface projecting module cylindrical surface projecting to unified plane, make plane picture there is depth perception, can intactly reflect whole view space;
Described Image Mosaics module is carried out seamless spliced to projected image according to the result of image cylindrical surface projecting module, obtain corresponding 360 degree panoramic pictures.
As further preferred, described video processing module also comprises the GPU accelerating module, and described GPU accelerating module is used for acceleration such as image rectification module, image cylindrical surface projecting module, Image Mosaics modules, to improve video processing speed.
As preferably, the present invention's 360 degree overall view monitoring systems also comprise system expansion module, for system upgrade and the system integration, use, such as anomalous event monitoring, interactive with, many video formats demonstration etc.
Compared with prior art, 360 degree overall view monitoring systems provided by the invention adopt 11 road cameras mutual in conjunction with forming photographing module, formed the monitor network of the panorama of 360 degree without dead angle, make supervisory control system can gather the video information of a panorama, comprehensive, high-quality 360 degree overall view monitorings have really been realized, have that integrated level is high, high-resolution, fast imaging, automatically adjust the advantages such as image, low-power consumption, wide temperature range, and cost is low, can directly export the analog or digital signal, the convenient collection, therefore have a good application prospect.
The accompanying drawing explanation
The front view that Fig. 1 is photographing module in the present invention's 360 degree overall view monitoring systems;
The top view that Fig. 2 is photographing module in the present invention's 360 degree overall view monitoring systems;
The spheroid lower surface stereogram that Fig. 3 is photographing module in the present invention's 360 degree overall view monitoring systems;
The spheroid lower surface cutaway view that Fig. 4 is photographing module in the present invention's 360 degree overall view monitoring systems;
The system schematic that Fig. 5 is 360 degree overall view monitoring systems in the embodiment of the present invention;
The software flow figure that Fig. 6 is the present invention's 360 degree overall view monitoring systems.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail, it is pointed out that the following stated embodiment is intended to be convenient to the understanding of the present invention, and it is not played to any restriction effect.
Fig. 5 is the system schematic of 360 degree overall view monitoring systems in the present embodiment.As shown in Figure 5,360 degree overall view monitoring systems comprise: photographing module, video acquisition module, video processing module, video display module and system extension module that 11 road cameras form.
Wherein, photographing module forms by being positioned at spherome surface Shi mono-road camera, and its position distribution as shown in Figures 1 to 4.
Fig. 1 is the front view of photographing module in this 360 degree overall view monitoring system, as shown in Figure 1,11 road cameras are distributed in spherome surface, and the central axis of Gai Shi mono-road camera comes together in the centre of sphere, the plane of symmetry centered by the face of centre of sphere place, this spherome surface is divided into spheroid upper surface and spheroid lower surface, and spheroid is supported by pole, and a rod axis is vertically through the centre of sphere on the Central Symmetry face.
Fig. 2 is the top view of photographing module in this 360 degree overall view monitoring system, as shown in Figure 2, five cameras are positioned at the spheroid upper surface, are the regular pentagon parallel with the Central Symmetry face and distribute, and the angle between the line of adjacent two cameras and this regular pentagon central point is 72 degree; A camera is positioned at the central axis of spheroid upper surface, this camera vertically through the Central Symmetry face centre of sphere.
Fig. 3 and Fig. 4 are respectively stereogram and the cutaway view of the spheroid lower surface of photographing module in the present invention's 360 degree overall view monitoring systems.As shown in Figure 3, spheroid lower surface regular distribution all the other five cameras, its distributed architecture is similar to the spheroid upper surface, and five cameras are the regular pentagon parallel with the Central Symmetry face and distribute, and the angle between the line of adjacent two cameras and this regular pentagon central point is 72 degree.As shown in Figure 4, the angle between the Central Symmetry face of the central axis of each camera in five of the spheroid lower surface cameras and this spheroid is 26.5 degree.Corresponding thereto, the angle between the Central Symmetry face of the central axis of each camera in five of the spheroid upper surface cameras and this spheroid also is 26.5 degree.And the arbitrary camera in five cameras of spheroid upper surface is projected in the point midway of adjacent two camera lines that the spheroid lower surface is corresponding with it.
Above-mentioned photographing module has that integrated level is high, high-resolution, fast imaging, automatically adjust the advantages such as image, low-power consumption, wide temperature range, and cost is low, can directly export the analog or digital signal, the convenient collection.And the mutual panorama in conjunction with having formed 360 degree of 11 road cameras, without the monitor network at dead angle, makes supervisory control system can gather the video information of a panorama.
The panoramic video information of photographing module collection receives through video acquisition module, and video acquisition module can adopt common video frequency collection card to complete, without with video compression functionality, with low cost.
Video acquisition module is sent to the video processing module processing after receiving this panoramic video information, video processing module is the software kernels place of native system, as shown in Figure 6, software flow mainly is comprised of image calibration module, image rectification module, image cylindrical surface projecting module, Image Mosaics module, GPU accelerating module its kernel software flow chart.
Wherein, the image calibration module is for determining camera internal reference and distortion parameter; The image rectification module is for the distortion of correcting image; Image cylindrical surface projecting module for by each camera same focal length, same time captured to same view space, imaging at topography's cylindrical surface projecting of Different Plane to unified plane, make plane picture there is depth perception,, can intactly reflect whole view space; The Image Mosaics module is carried out seamless spliced to projected image according to the result of image cylindrical surface projecting module, make and can obtain corresponding panoramic picture; The GPU accelerating module is used for acceleration such as image rectification module, image cylindrical surface projecting module, Image Mosaics modules, to improve video processing speed.
Panoramic video information is finished dealing with and is shown by video display module through video processing module, and this video information is stored by the software Real Time Compression.
System expansion module is used for upgrading and the system integration of later system, such as anomalous event monitoring, interactive with, many video formats demonstration etc.
Above-described embodiment has been described in detail technical scheme of the present invention and beneficial effect; be understood that and the foregoing is only specific embodiments of the invention; be not limited to the present invention; all any modifications of making in principle scope of the present invention and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a degree overall view monitoring system, comprise photographing module, video acquisition module, video processing module and video display module, and it is characterized in that: photographing module is comprised of 11 cameras that are positioned at spherome surface; The central axis of described 11 cameras comes together in the centre of sphere; The plane of symmetry centered by the face of centre of sphere place, described spherome surface is divided into spheroid upper surface and spheroid lower surface, five cameras are positioned at the spheroid upper surface, be the regular pentagon parallel with the Central Symmetry face and distribute, and the central axis of each camera and Central Symmetry face are 26.5 degree angles; Five cameras are positioned at the spheroid lower surface, be the regular pentagon parallel with the Central Symmetry face and distribute, and the central axis of each camera and Central Symmetry face are 26.5 degree angles; Arbitrary camera in five cameras of described spheroid upper surface is projected in the point midway of adjacent two camera lines that the spheroid lower surface is corresponding with it; The another one camera is positioned at the central axis of spheroid upper surface, this camera vertically through the Central Symmetry face centre of sphere; Described spheroid is supported by pole, and described rod axis is vertically through the Central Symmetry face centre of sphere.
2. according to claim 1 360 spend overall view monitoring systems, and it is characterized in that: the horizontal view angle of described each camera is more than or equal to 72 degree, and vertical angle of view is more than or equal to 53 degree.
3. according to claim 2 360 spend overall view monitoring systems, and it is characterized in that: the horizontal view angle of described each camera is 100 degree, and vertical angle of view is 76 degree.
4. according to claim 1 360 spend overall view monitoring systems, and it is characterized in that: described each camera is CCD or CMOS camera lens.
5. according to claim 1 360 spend overall view monitoring systems, and it is characterized in that: described video processing module comprises image calibration module, image rectification module, image cylindrical surface projecting module and Image Mosaics module; Wherein, described image calibration module is for determining video camera internal reference and distortion parameter; Described image rectification module is for the distortion of correcting image; Described image cylindrical surface projecting module for by each camera same focal length, same time captured to same view space, imaging at topography's cylindrical surface projecting of Different Plane to unified plane; Described Image Mosaics module is carried out seamless spliced to projected image according to the result of described image cylindrical surface projecting module, obtain corresponding 360 degree panoramic pictures.
6. according to claim 5 360 spend overall view monitoring systems, it is characterized in that: described video processing module also comprises the GPU accelerating module, be used for accelerogram as rectification module, image cylindrical surface projecting module and Image Mosaics module, to improve video processing speed.
7. according to claim 1 360 spend overall view monitoring systems, it is characterized in that: described 360 degree overall view monitoring systems also comprise the system expansion module for system upgrade and the system integration.
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