CN103716586A - Monitoring video fusion system and monitoring video fusion method based on three-dimension space scene - Google Patents
Monitoring video fusion system and monitoring video fusion method based on three-dimension space scene Download PDFInfo
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Abstract
The invention provides a monitoring video fusion system and a monitoring video fusion method based on a three-dimension space scene. Video frames are extracted from a monitoring video data stream and are projected to a three-dimension space scene so as to realize full-space-time stereo fusion of video data and three-dimension scene data and change a traditional mode in which a map application can only be statically displayed; and a plurality of channels of real-time monitoring videos deployed in different geographic locations and a three-dimension model in a monitoring area are registered and fused so as to generate a large-range three-dimension panoramic dynamic monitoring picture and realize real-time global control on the overall security situation of the monitoring area.
Description
Technical field
The present invention relates to area of computer graphics, the system and method that particularly a kind of monitor video based on three dimensions scene merges.
Background technology
Along with the extensive use of GIS technology, the video system solution of the spatial positional informations such as integrated two-dimensional map just progressively moves to maturity.Compare with traditional real-time audio that obtains merely monitoring objective, the video monitoring system of video information, the three-dimensional video monitor system of having inherited three-dimensional spatial information is strengthening the aspects such as user's space consciousness, the emergent decision-making of assisted user by the larger effect of performance.
Aspect three-dimensional video monitor, commonplace way is to gather out picture from the real-time imaging of various places at present, with the form marking, in three-dimensional scenic, shows.When user wonders the monitoring image in somewhere, click this mark and can eject real-time monitoring image sectional drawing.This method just with the preliminary combination of three-dimensional platform, do not given play to the feature directly perceived of three-dimensional scenic, be also far from reaching the fusion target of video location and periphery three-dimensional information.
Prior art has following several shortcomings:
1. traditional story board monitoring mode has the application limitation that picture isolates, lacks relevance mutually, is difficult to intuitively obtain the general safety situation of guarded region.
2. at present monitor video be combined with three-dimensional scenic and is only limited to extract key video sequence frame and show in three-dimensional scenic with the form marking, and this mode is difficult in real time display video intuitively, guarded region with supervise target check trivial operations and not directly perceived.
Different from the mode of Direct Mark, in the present invention, we adopt the method to three-dimensional map space by video-projection, a set of system based on three-dimensional map scene and monitor video fusion is proposed, the Multi-channel real-time monitoring video of diverse geographic location will be deployed in, proofread and correct registration with the threedimensional model of guarded region, use three-dimensional rendering technology, real-time video dynamic mapping, in threedimensional model, is generated to the three-dimensional panorama monitored picture in large-range monitoring region.
Summary of the invention
The invention provides a kind of monitor video fusion method based on three dimensions scene, can generate three-dimensional panorama dynamic monitoring picture on a large scale, realize the real-time overall situation of guarded region general safety situation and control.
The invention provides a kind of video fusion supervisory control system based on three-dimensional map scene, it is characterized in that, comprising:
Server module, for gathering and store video stream and attribute information corresponding to camera ID;
Video processing module, for initiating request to server module, obtains video flowing and attribute information corresponding to camera ID, and video flowing is resolved to frame of video, to fusion treatment module, sends frame of video and attribute information corresponding to camera ID;
Three-dimensional scenic module, for guarded region is carried out to three-dimensional modeling, builds three-dimensional map scene, to fusion treatment module, sends described three-dimensional map scene;
Fusion treatment module, projects described three-dimensional map scene for the method by texture projection by described frame of video, and described frame of video and described three-dimensional map scene are merged.
The described video fusion supervisory control system based on three-dimensional map scene of the present invention, is characterized in that, the attribute information that described camera ID is corresponding at least comprises GPS position, roll angle, inclination angle and the yaw angle of camera.
The described video fusion supervisory control system based on three-dimensional map scene of the present invention, it is characterized in that, described fusion treatment module is for receiving frame of video and attribute information corresponding to camera ID passing over from video processing module, the attribute information corresponding by camera ID navigates to this position in three-dimensional map scene by camera, and the method by texture projection projects frame of video in this position, frame of video and three-dimensional map scene are merged.
The described video fusion supervisory control system based on three-dimensional map scene of the present invention, is characterized in that, realize to described frame of video and described three-dimensional map scene merge comprise following:
Described frame of video is carried out to geometric correction, noise elimination, chroma-luminance adjustment and registration;
Find out the maximal correlation of described frame of video and described three-dimensional map scene, generate the transformation model of described three-dimensional map scene,
The coordinate transform of unified video image and three-dimensional virtual scene, the method by texture projection projects frame of video in three-dimensional scenic, realizes the fusion of video image.
The described video fusion supervisory control system based on three-dimensional map scene of the present invention, is characterized in that, the fusion video of described frame of video and three-dimensional map scene carries out projection correction by roll angle, yaw angle, the inclination angle of camera.
The present invention also provides a kind of video fusion method for supervising based on three-dimensional map scene, it is characterized in that comprising the following steps:
Guarded region is carried out to three-dimensional modeling, build three-dimensional map model of place;
With camera collection guarded region video flowing, and collected video information and attribute information corresponding to camera ID are uploaded onto the server and stored;
To server, initiate request, obtain video flowing and attribute information corresponding to camera ID, and video flowing is resolved to frame of video;
The attribute information corresponding according to camera ID, navigates to this position in three-dimensional map scene by GPS position by camera, and the method by texture projection projects frame of video in this position, realizes frame of video and three-dimensional map scene merges.
The described video fusion method for supervising based on three-dimensional map scene of the present invention, is characterized in that, the attribute information that described camera ID is corresponding at least comprises GPS position, roll angle, inclination angle and the yaw angle of camera.
The described video fusion method for supervising based on three-dimensional map scene of the present invention, is characterized in that, realize to described frame of video and described three-dimensional map scene merge comprise following:
Described frame of video is carried out to geometric correction, noise elimination, chroma-luminance adjustment and registration;
Find out the maximal correlation of described frame of video and described three-dimensional map scene, generate the transformation model of described three-dimensional map scene,
The coordinate transform of unified video image and three-dimensional virtual scene, the method by texture projection projects frame of video in three-dimensional scenic, realizes the fusion of video image.
The described video fusion method for supervising based on three-dimensional map scene of the present invention, is characterized in that, the fusion video of described frame of video and three-dimensional map scene carries out projection correction by roll angle, yaw angle, the inclination angle of camera.
Accompanying drawing explanation
Referring to accompanying drawing, embodiments of the present invention is further illustrated, wherein:
Fig. 1 is the implementing procedure figure of patent of the present invention.
Fig. 2 is the particular flow sheet of patent of the present invention.
Fig. 3 is the flow chart that video image of the present invention merges.
Fig. 4 be the present invention operate case by video-projection to design sketch in three dimensions scene.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Three-dimensional panorama merges video monitoring system and comprises four modules: server module, video processing module, three-dimensional scenic module, fusion treatment module.
Detailed technical scheme can be summarized as following four modules:
1. server module: front end video capture device is the multiple different model monitoring camera that is distributed in diverse geographic location, monitor video is passed back in the server of network center by optical fiber, server Dui Ge road video carries out physics storage, and set up monitoring camera ID and its video flowing in the GPS position of server path, camera, the mapping relations of roll angle, inclination angle, yaw angle etc., and be stored in database.
2. video processing module: this module is by the server at procotol accesses network center, according to monitoring camera ID, to server, initiate request, server receives request as attribute information corresponding to this camera of data base querying ID, and result is returned to requesting party's (namely video processing module), requesting party obtains video from server request again according to video storage path and flows to local computer after obtaining the relevant information of this camera, and video flowing is resolved to frame of video video playback window play, user can select video to play by video selective listing, simultaneously, video is when playing, frame of video and this camera correlation attribute information also can be delivered in three-dimensional scenic and merge and demonstration in real time.
3. three-dimensional scenic module: this module provides man-machine interaction, realizes graphic interface feature operation, utilize satellite photo for situation elements, adopt the DLL (dynamic link library) of an OpenGL(cross-platform cross language) technology and and Mercator projection algorithm build three-dimensional map scene, and in scene, build naive model simulation common building, and for example, for Important building (building, municipal public security bureau, landmark-type building) build complex model, with the third dimension in enhanced scene and presence, and with one independently window offer user and do human-machine operation.User can carry out convergent-divergent, roaming to map scene with differing heights, different angles by mouse, keyboard or rocking bar and check merging rear video etc. in three-dimensional scenic in three dimensional window.
4. fusion treatment module: comprise the real-time demonstration of three-dimensional panorama monitor video, the realization of convergence strategy etc.The frame of video that module reception passes over from video processing module and correlation attribute information (the GPS position of camera, yaw angle, inclination angle, roll angle etc.), by GPS position, camera is navigated to this position in three-dimensional map scene, that is to say the position of camera in real geography, and the method by texture projection projects frame of video in this position, frame of video and three-dimensional map scene are merged.By roll angle, yaw angle, the inclination angle of camera, to merging video, carry out projection correction again.Concrete, video fusion technology generally can be divided into three steps (as shown in Figure 3):
1) video image is carried out to geometric correction, noise is eliminated, color, brightness adjustment and registration etc.
2) carry out video image registration, find the maximal correlation of video image and three-dimensional virtual scene, with removal of images in space, the information gap of the direction such as phase place and resolution, reach fusion truer, information is object more accurately.Then set up the transformation model of three-dimensional scenic, then the coordinate transform of unified video image and three-dimensional virtual scene, the method by texture projection projects frame of video in three-dimensional scenic, realizes the fusion of video image.
Video image merges can be divided into Pixel-level, feature level, decision level fusion etc. from low to high according to degree of intelligence.Pixel-level fusion refers to splice fusion based on image pixel, is that two or more image co-registration become as a whole.Feature level merges the obvious characteristic with figure, as lines, building etc. are characterized as splicing and the fusion that image is carried out on basis.The image algorithms such as decision level fusion utilization texture projection that the present invention adopts carry out Probabilistic Decision-making, carry out according to this video or image co-registration, are more adapted to subjective requirement.
The present invention, by coding code, has designed the software to three-dimensional scenic for monitoring camera video-projection specially.This software has been realized from server and has been obtained video data, then by video-projection in three dimensions scene.Video fusion effect as shown in Figure 4.
The above the specific embodiment of the present invention, does not form limiting the scope of the present invention.Various other corresponding changes and distortion that any technical conceive according to the present invention is made, all should be included in the protection range of the claims in the present invention.
Claims (9)
1. the video fusion supervisory control system based on three-dimensional map scene, is characterized in that, comprising:
Server module, for gathering and store video stream and attribute information corresponding to camera ID;
Video processing module, for initiating request to server module, obtains video flowing and attribute information corresponding to camera ID, and video flowing is resolved to frame of video, to fusion treatment module, sends frame of video and attribute information corresponding to camera ID;
Three-dimensional scenic module, for guarded region is carried out to three-dimensional modeling, builds three-dimensional map scene, to fusion treatment module, sends described three-dimensional map scene;
Fusion treatment module, projects described three-dimensional map scene for the method by texture projection by described frame of video, and described frame of video and described three-dimensional map scene are merged.
2. the video fusion supervisory control system based on three-dimensional map scene as claimed in claim 1, is characterized in that, the attribute information that described camera ID is corresponding at least comprises GPS position, roll angle, inclination angle and the yaw angle of camera.
3. the video fusion supervisory control system based on three-dimensional map scene as claimed in claim 1, it is characterized in that, described fusion treatment module is for receiving frame of video and attribute information corresponding to camera ID passing over from video processing module, the attribute information corresponding by camera ID navigates to this position in three-dimensional map scene by camera, and the method by texture projection projects frame of video in this position, frame of video and three-dimensional map scene are merged.
4. the video fusion supervisory control system based on three-dimensional map scene as claimed in claim 1, is characterized in that, realize to described frame of video and described three-dimensional map scene merge comprise following:
Described frame of video is carried out to geometric correction, noise elimination, chroma-luminance adjustment and registration;
Find out the maximal correlation of described frame of video and described three-dimensional map scene, generate the transformation model of described three-dimensional map scene,
The coordinate transform of unified video image and three-dimensional virtual scene, the method by texture projection projects frame of video in three-dimensional scenic, realizes the fusion of video image.
5. the video fusion supervisory control system based on three-dimensional map scene as claimed in claim 1, is characterized in that, the fusion video of described frame of video and three-dimensional map scene carries out projection correction by roll angle, yaw angle, the inclination angle of camera.
6. the video fusion method for supervising based on three-dimensional map scene, is characterized in that comprising the following steps:
Guarded region is carried out to three-dimensional modeling, build three-dimensional map model of place;
With camera collection guarded region video flowing, and collected video information and attribute information corresponding to camera ID are uploaded onto the server and stored;
To server, initiate request, obtain video flowing and attribute information corresponding to camera ID, and video flowing is resolved to frame of video;
The attribute information corresponding according to camera ID, navigates to this position in three-dimensional map scene by GPS position by camera, and the method by texture projection projects frame of video in this position, realizes frame of video and three-dimensional map scene merges.
7. the video fusion method for supervising based on three-dimensional map scene as claimed in claim 6, is characterized in that, the attribute information that described camera ID is corresponding at least comprises GPS position, roll angle, inclination angle and the yaw angle of camera.
8. the video fusion method for supervising based on three-dimensional map scene as claimed in claim 6, is characterized in that, realize to described frame of video and described three-dimensional map scene merge comprise following:
Described frame of video is carried out to geometric correction, noise elimination, chroma-luminance adjustment and registration;
Find out the maximal correlation of described frame of video and described three-dimensional map scene, generate the transformation model of described three-dimensional map scene,
The coordinate transform of unified video image and three-dimensional virtual scene, the method by texture projection projects frame of video in three-dimensional scenic, realizes the fusion of video image.
9. the video fusion method for supervising based on three-dimensional map scene as claimed in claim 6, is characterized in that, the fusion video of described frame of video and three-dimensional map scene carries out projection correction by roll angle, yaw angle, the inclination angle of camera.
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