CN101375598A - Video flashlight/vision alert - Google Patents
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- CN101375598A CN101375598A CNA2005800180164A CN200580018016A CN101375598A CN 101375598 A CN101375598 A CN 101375598A CN A2005800180164 A CNA2005800180164 A CN A2005800180164A CN 200580018016 A CN200580018016 A CN 200580018016A CN 101375598 A CN101375598 A CN 101375598A
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Abstract
According to an aspect of the invention, a system for providing immersive surveillance a site has a plurality of cameras each producing a respective raw video of a respective portion of the site. A processing component receives the raw video from the cameras and generates processed video from it. A visualization engine is coupled to the processing system, and receives the processed video therefrom. The visualization engine renders real-time images corresponding to a view of the site in which at least a portion of the processed video is overlaid onto a rendering of an image based on a computer model of the site. The visualization engine displays the images in real time to a viewer. The processing component comprises first and second filter modules. The second filter module processes video received as output from the first filter module. A controller component controls all transmission of data and video between the first and second filter modules.
Description
Correlation technique
The title that this application requires on June 1st, 2004 to submit to is the U.S. Provisional Application the 60/575th of " METHOD ANDSYSTEM FOR PERFORMING VIDEO FLASHLIGHT ", No. 895, the title that on June 1st, 2004 submitted to is the U.S. Provisional Patent Application the 60/575th of " METHOD ANDSYSTEM FOR WIDE AREA SECURITY MONITORIN G; SENSORMANAGEMENT AND SITUATIONAL AWARENESS ", No. 894, with the title of submitting on June 1st, 2004 be the priority of No. the 60/576th, 050, the U.S. Provisional Patent Application of " VIDEOFLASHLIGHT/VISION ALERT ".
Technical field
The present invention relates generally to image processing, and more specifically, relate to and be used to provide immersion to monitor the system and method for (immersive surveillance), wherein, managed by covering on the 2D that monitors this place down or the 3D model quilt from the data of a plurality of video cameras of locality or environment or transducer or video from the video of these video cameras.
Background technology
Now more in the past than the effective supervision and the safety that needed more airport, nuclear power station and other harbor.Day by day adopt video monitor increasedly on airport and responsive place.In order effectively to be used in the actual conditions, need healthy and strong scene understand (sceneunderstanding) based on the supervision of video.In typical supervision and safety system, use a plurality of monitor or television screens, each screen provides the visual field of a camera scene.An example of this system has been shown among Figure 1A.The operation of this system generally needs very big space and some Security Services.
Yet, to understand by reliable scene, the typical security set of the system shown in Figure 1A or system (having cover monitor and some Security Services) can replace with independent display and the operator shown in Figure 1B.The surveillance of this example is known as VIDEO FLASHLIGHT
TM, and in No. the 2003/0085992nd, the disclosed patent application of the disclosed U.S. on May 8 in 2003, it is described, it is combined in herein as a reference.Usually, broken, detected motion or report has other when action, the video and the alarm operation person of automation algorithm analysis input when circumference.The vision of camera position merges the whole visual field that the whole place of operator is given in (visual fusion), analysis result and alarm in context-aware (situationalawareness) system.With such setting, the operator can assess rapidly and potential threat is made response.
This system provides the observation to the system of the safety camera of the three unities, and a lot of video cameras wherein can be arranged.The video output of the video camera in the immersion system combines with the computer model of this ground point-rendering.These systems, system shown in No. the 2003/0085992nd, the disclosed patent application of the U.S., allow the user to move through dummy model and watch the associated video that is presented on automatically in the immersive virtual environment, immersive virtual environment comprises from covering from the real-time video on the image of the computer 2D in this place or 3D modeling rendering of video camera presents (video feed).This provides the color method that of the video of a kind of inspection from a plurality of even a large amount of video feeds from video camera.
Yet, simultaneously, in order to monitor more complete or area is bigger or because other reason, often need to increase the quantity of the video camera that produces data.Unfortunately, existing surveillance is not designed for their handled data volumes of extensive expansion usually.Therefore, need have easy convergent-divergent to roll up the system of video camera or other number of sensors, and can expand to the transducer that comprises other type, comprise radar, fence transducer (fence sensor) and access control system, and still keep the ability of the equal level of the explanation behavior by these transducers identification threat conditions.
In addition, need have and a kind ofly be removed, replace at needs or add between each assembly in the event component in the system modular system is provided.
Summary of the invention
Therefore an object of the present invention is to provide a kind of system here, particularly aforesaid easy convergent-divergent is to roll up the number of video flash system of video camera.
Another object of the present invention provides a kind of immersion surveillance, wherein software organization is become module, so that existing module can be changed into new module, and changes to increase the functional of system in modular mode when being necessary.
The present invention relates generally to modular assembly is incorporated into system and method in the single environment.
According to an aspect of the present invention, the system that is used to provide immersion to monitor the three unities has a plurality of video cameras, produces each original video of the various piece in this place separately.Processing components receives original video from video camera, and generates the video of handling from it.Visualization engine is connected to treatment system, and receives the video of handling from it.Visualization engine is drawn the realtime graphic corresponding to this visual field, place, and the video handled of at least a portion is covered on the image based on the computer model drafting in this place therein.Visualization engine is to the real-time display image of beholder.Processing components comprises first and second filter modules.The video that the conduct that the processing of second filter module receives from first filter module is exported.Controller assemblies is controlled all data and the video transmission between first and second filter modules.
According to a further aspect in the invention, the method for video that is used for handling the immersion surveillance in place comprises from a plurality of video cameras and receives original videos.Original video is through handling, so that produce the video of handling.The video of handling is transferred to visualization engine, the Video Applications that visualization engine was handled at least a portion perhaps is applied to the video storage that will the handle database storage module in the database of computer-accessible to the image of drawing based on the computer model in this place.The image of drawing is displayed to the user with the video of above-mentioned covering.Original video is carried out in the filter step of two separation by at least two filter modules to the processing of the video of handling at least.A filter module is handled the output of another filter module.All videos between two filter modules of main controller controls and the transmission of data.
From content disclosed herein, other benefit of the present invention and advantage will be apparent.
Description of drawings
Figure 1A shows the legacy system that has a plurality of monitors and camera operation;
Figure 1B shows VIDEO FLASHLIGHT
TMThe model of the operation of visual field selective system;
Fig. 2 shows VIDEO FLASHLTGHT
TMThe configuration diagrammatic sketch of system configuration; With
Fig. 3 is the diagrammatic sketch of system according to a preferred embodiment of the present invention.
Embodiment
Therefore, feature of the present invention above-mentioned can specifically be understood, and the summary of more specific description of the present invention, top summary can realize that some of them embodiment is shown in the accompanying drawing of this paper by reference example.Yet, it should be noted that accompanying drawing only shows exemplary embodiments of the present invention, therefore should not be considered to restriction, because the present invention can comprise other equivalent embodiment to its scope.
If require correct scene to understand, system configuration must be the component software that connects by the network service more than a group.For effective scene analysis, the system configuration assembly must interact with video sample (pixel) in real time in the frame synchronization mode.If desired Open architecture so that other assembly can in conjunction with, that is, other assembly and filter process can be easily inserted in the system because a plurality of data sources must be synchronously, this requires to be difficult to usually.Yet system configuration of the present invention provides easy insertion and these features of stationary problem can not occur, and forms the basis of inserting new and scene analysis algorithm novelty according to system configuration according to the present invention.It is scalable and can expand and comprise other form, such as, radar, fence transducer and access control system, and come the explanation behavior to limit threat condition by these forms.
Such as VIDEO FLASHLIGHT
TMSystem in conjunction with advanced person's detection platform based on vision, for example, be called as VISIONALERT
TMPlatform, have the videograph that threatens and visual in environment and estimate.VISIONALERT
TMPlatform can effectively detect from the motion in the scene of the video camera that moves, from same video camera pursuit movement target with healthy and strong refuse false positives (positive), changes such as the tree that waves, wobbling action and brightness.It also can detect such as pacing up and down and that circumference is broken is movable or carry out alarm under unserviced object is stayed situation in the scene.These analyzing and processing depend on the processing of the video that receives to a great extent, simulate if present, and the video that receives must be converted into digital signal from analog signal, and its each frame must be by synchronous or the like.
Such as VIDEO FLASHLIGHT
TMSystem merged a large amount of video feeds, and these video feeds are covered on 3D model or the topographic map.System is in conjunction with DVR (digital video recorder), so that in time seamlessly backward and move forward, allow criminal fast threat analysis (forensic threat analysis).They also can be in conjunction with a plurality of Pan-Tilt-Zoom camera units, and are provided for controlling and selecting the interface based on model of the map/3D intuitively of correct PTZ viewpoint.
Fig. 2 shows an example of the system configuration that is used for these systems.Video is provided with the time code from multiple source, and is not shown in the diagrammatic sketch.Video is by the processing of a plurality of video front programs, comprise the tracking system that is used for tracked mobile target, move and leave over object detection, with the attitude maker, and alarm translater, all these handles video or alarm is exported with the acquisition data relevant with the supervision in this place, and these data can be transferred to VIDEOFLASHLIGHT
TMThe immersion display to be included in the display, perhaps is used for other output, such as being used in the alarm or the like.The video of record and data with alert are also by playback and be transferred to VIDEO FLASHLIGHT
TMStand, the immersion that is used for carrying out to the user shows.
In the present invention, surveillance comprises that rapid deployment CCTV-is the supervision of customization at center and the general platform of safety system.A plurality of assemblies as safety means, algorithm and display station, can be integrated in the independent environment.This system configuration comprises the module filters set that is connected to each other the flow data between the filter.Here, " filter " of use and " stream " these terms are comparison broad sense.In general, filter processing that data are created, changed or arrange.Stream not only is meant data flow on the network, even also refers to the transmission between the program module of same computer system potentially.This will discuss (about Fig. 3) hereinafter in more detail, the system that this stream allows integrator configuration to carry out work by a plurality of PC system that keeps data flow.
Target of the present invention is to use system configuration shown in Figure 3 to realize, the figure shows system configuration according to a preferred embodiment of the invention.Should be appreciated that, in this environment, optimum system choosing be multiprocessor and multicomputer system, discrete therein mechanism relates to many processing.
This system comprises the Common Component of computer, these assemblies comprise by network or communication interface link and a plurality of CPU that have RAM and/or ROM memory or stand alone computer system and such as other suitable memory device of disk or CD-ROM drive.
Return Fig. 3, system configuration 10 is based on the stage filter chart, and this chart illustrates the computational activity of computer of the system of all-links on function.
Wherein can in different institutions, carry out the modular system that each is handled in order to create, the processing of early stage system being prepared to be used for being applied to the immersion model or being used to be stored in the original video of database is divided into independently assembly operation, is called " filter " here.Itself can handle each filter, and does not need the instruction about the ongoing calculating of other parts of system, perhaps the instruction of the performed calculating of other filter.Equally, each filter can be performed in various computing machine system.
The filter chart comprises the modular filter that can be connected to each other the flow data between them.Filter can be one of following three types basically: supply filter (video capturing device, PTZ communicator, database read device etc.), trans form filter (such as the algoritic module of motion detector or tracker) or receiver filter (sink filter) (writing device such as drawing engine, database).These filters are built-in with intrinsic thread ability, move concurrently to allow a plurality of assemblies, and it allows the available resources on the system optimization ground use multi processor platform.In other words, data reader/transducer can move simultaneously with assembly processing module and data fusion module.
In addition, provide the appropriate software formation that is used to cushion, flow synchronization and demultiplexing.
Filter is with hierarchical approaches work, and the output of wherein more rudimentary processing operation (for example, change-detection, spot form (blob formation)) is fed in the higher filter (grader, identifier, fusion device).In preferred embodiment shown in Figure 3, filter is real time data reader/transducer 11, assembly processing module 13 and data fusion module 15.Original data stream from sensor device is fed in real time data reader/transducer 11, its with original video convert to have with system in the video of the public form of other video.Then, handled by assembly processing module 13 from the data after the conversion of data reader 11, this is another step in the video standard process.Then, data and data fusion after will handling by data fusion module, for instance, such as the direction of expression Pan/Tilt/Zoom camera and the metadata (meta data) of push-and-pull (zoom).Data fusion usually and synchronization be coupled, wherein Fused data and frame of video etc. are in synchronization.
Although this is the mode of a kind of each stage of creating the Video processing of permission in the immersion surveillance carrying out the filter thread of parallel processing, should be appreciated that alternate manner is divided the processing by the received video of system in addition.Important consideration is that each filter is isolated with other filter effectively, except it transmits data from other filter reception and/or to other filter.
Be also to be understood that preferred embodiment shows multiprocessor, multimachine structure environment, but advantage of the present invention can also obtain in unit structure environment, and the environment more than a processor is particularly arranged.
System configuration 10 also provides regulation engine 18, to make the concrete behavior prototype at the top of dividing into groups from these essential informations of data fusion module 15 fast, to allow more intricate reasoning and threat assessment.During handling by regulation engine 18, regulation engine 18 also receives data from database/file store 20.Being fed to data the visualization engine 22 from regulation engine 18 generates and to be used for the scene information that shows by the user interface 24 such as the display of appropriate size.Master component controller/configurator 26 is communicated by letter with database/file store 20, regulation engine 18 and visualization engine 22 with filter 12,14,16 and its operation is controlled.
Regulation engine 18 carries out work by the distributed collection such as the database of database/file store 20.Therefore, even regulation engine 18 is greatly greatly expanded under the condition of enlarged in system, also can continue operate as normal.Its automatic Query Database/file store 20, and make the operator to come based on complex rule is set up in these regional reasonings with zones of different.Regulation engine 18 can be incorporated on the warning station of Security Services's preview.
Database/file store 20 is provided for flow data (initial or handled) filing in the persistant data storehouse.This database is packaged in the interface of similar DVR, writes down simultaneously and a plurality of metadata streams of playback to allow the operator.By being linked into database/file store 20 (module), perhaps preferably by network interface or software interface, the playback behavior that people can control system.This interface provides a kind of mode to come deal with data for non real-time assembly and rule-based engine.This also allows rule-based engine (hereinafter describing) to inquire about and develop the complex interface on this database top.
Master component 26 comprises device controller 28, is used for the sensor device of control system, for instance, and such as can be by from the order of user interface or pan/inclination/push-and-pull video camera of moving automatically by system, to follow target.
The configuration file that each filter 12,14,16 has based on XML.Interconnectivity and data flow are configured within the XML file.In order to visit of the behavior of XML file, use the HTTP order to be used from this filter with IP address allocated one with the controlled filter device.HTTP request is by user's browser handles.Thereby browser receives XML document and the operational analysis program makes up the page, and XML is transformed into is used to the html format that shows and watch.According to preferred embodiment, the operator can change filter.The variation of the data of filter will be sent out, that is, flow as the XML stream by network interface.These streams can visit by SOAP (simple target access protocal) or CORBA (Common Object Request Broker Architecture) interface.Soap message is embedded among the HTTP request of mailing to certain filter.In this way, can add, revise or remove New Parent, and not need any software translating from system.In some cases, the filter chart can be modified in operation, to allow the dynamic of processing module and adaptability assembling.
In a word, system configuration 10 has following principal character:
System scalability: this structure can be by a plurality of processors and a plurality of mechanism in conjunction with each assembly.In the unit structure, the filter assemblies of interconnected threading will provide connectivity.A pair of filter provides connectivity between the PC by the transport layer based on RPC.
The assembly mould blocking: this structure keeps the clearly separation between the software module, has the mechanism that the data of making flow between assembly.Each module will be defined as having the filter of common interface, so that data flow between filter.The encapsulation that filter is provided convenience for algorithm development person can be used for the processing components of integrating immediately with quick exploitation.This structure makes it possible to carry out the quick assembling of filter module, and does not need any code rewriting.This is by processing being divided into the modular benefit that thread obtained of filter step.
Component upgrade ability: be easy to replace system component and the remainder that do not influence system infrastructure.Gone out each filter based on configuration file example based on XML.Interconnectivity and data flow are configured within the XML file.This adds permission, revise or removes New Parent from system, and does not need any software translating.In some cases, can in operation, revise the filter chart to allow the dynamic and adaptive assembling of processing module.
Data flow architecture: this system configuration of Miao Shuing provides and has made the mechanism of flowing between the module of data in system herein.It will provide the lasting understanding to the time of passing through system.Private filter provide between a plurality of data sources synchronously, and need the fusion filter of a plurality of data flow of combination to be supported.To be inserted in the foundation structure, add new data flow by realizing new additional method.Another main aspect of data flow line styleization (streamling) is that memory uses, data are duplicated and correct memory cleaning.This structure realizes that flow data is as with reference to counting pointer tracking data and do not duplicate these data again when data flow is crossed system.
Data store organisation: this system configuration of Miao Shuing provides the interface of flow data (initial or handled) filing in the persistant data storehouse herein.This database is encapsulated in the interface of similar DVR, writes down simultaneously and a plurality of metadata streams of playback to allow the user.By inserting this module, perhaps by software interface or by network interface, the playback behavior that people can control system.The mode that this interface provides non real-time assembly and rule-based engine to be used for deal with data.This also allows rule-based engine (describing hereinafter) in this database top inquiry and exploitation complex interface.
Rule-based query engine: rule-based engine carries out work by the set of the distribution of the database pointed out above.This is the benefit from scalable viewpoint.It is Query Database automatically, and makes the user can use available zones of different to come based on complex rule is set up in these regional reasonings.This engine can be incorporated on the warning station of Security Services's preview.
Open architecture: this system configuration described herein supporting interface in multistage reciprocation opens in the system.In the simplest grade, will be provided the HTTP interface of all filters, to control their behavior.Data will be fluidized the stream into XML by network interface.These can visit by COBRA or SOAP interface.Equally, the software interface of database is come forth, make directly binding data library information of user.In software levels, application program guide is provided, automatically to generate source code filter housing program (source code filter shell), come combination algorithm.This scene that allows the XProgrammer to be assembled in its environment is understood the complicated filter chart that customizes.
The above stated specification of the preferred embodiments of the present invention is used for example and illustrative purposes and presents.And be not exhaustive, neither limit the invention to disclosed precise forms, and modifications and variations can be according to above technical scheme or can be from practice of the present invention is obtained.The selection of embodiment and description are in order to explain principle of the present invention, and its practical application makes this area professional and technical personnel to utilize the present invention with each embodiment that is suitable for the particular desired purposes and the form of various modifications.This means that scope of the present invention is to be defined by this paper appended claim and equivalent thereof.
Claims (20)
1. one kind is used to provide immersion to monitor the system of the three unities, and described system comprises:
A plurality of video cameras, it produces each original video of the various piece in described place respectively;
Processing components, it receives described original video from described video camera, and generates the video of handling from it;
Visualization engine, it is coupled to described treatment system, and receive the video of described processing from it, described visualization engine is drawn the realtime graphic corresponding to the visual field in described place, wherein the video of the described processing of at least a portion is covered on the image of drawing based on the computer model in described place, and described visualization engine shows described image in real time to the beholder;
Described processing components comprises first and second filter modules, and described second filter module is handled the video that receive of conduct from the output of described first filter module;
Controller assemblies, it controls data between described first and second filter modules and all transmission of video.
2. the system as claimed in claim 1, wherein, described first and second filter modules are processing of the software control that moves on independent computer.
3. the system as claimed in claim 1, wherein, described first filter module comprises the described original video from described a plurality of video cameras is read and convert to data read and the modular converter with the video after the conversion that is suitable for the form further handled.
4. system as claimed in claim 3, wherein, described second filter module comprises video processing module, it is coupled to described data read and modular converter, and receive video after the conversion of its output, and further the Video processing after the described conversion is become to be used for the ready video of data fusion that merges with metadata.
5. system as claimed in claim 4, wherein, described processing components comprises the 3rd filter module that receives the ready video of described data fusion from described second filter module, and described controller assemblies is controlled all data between the described second and the 3rd filter module and the transmission of video.
6. system as claimed in claim 6, wherein, described the 3rd filter module is carried out data fusion to the ready video of described fusion, to produce the video of described processing.
7. system as claimed in claim 6, wherein, the described second and the 3rd filter module is the processing that moves on each comfortable various computing machine.
8. system as claimed in claim 6 further comprises the regulation engine that is coupled to described the 3rd filter module.
9. the system as claimed in claim 1 further comprises the video of storing described processing with data memory module.
10. the system as claimed in claim 1, wherein, described computer model is the 3-D model in described place.
11. the method for the video of an immersion surveillance that is used for handling the three unities, described method comprises:
Receive original video from a plurality of video cameras;
Handle described original video, so that produce the video of handling;
Visualization engine is arrived in the video transmission of described processing, described visualization engine to the image of drawing based on the computer model in described place, perhaps is applied to the Video Applications of the described processing of at least a portion with the video storage of the described processing database storage module in the database of computer-accessible; With
The image that shows the described drafting that is coated with described video to the user;
Described original video is to be carried out in the filter step of at least two separation by at least two filter modules to the described processing of the video of handling, and a filter module is handled the output of another filter module; With
With all videos between two filter modules of main controller controls and the transmission of data.
12. method as claimed in claim 11, wherein, described first and second filter process are carried out by the various computing machine.
13. method as claimed in claim 11, wherein, the processing of one of described filter module comprises data read or changes described original video.
14. method as claimed in claim 11, wherein, the processing of one of described filter module comprises the described video of preparing to be used for carrying out with metadata data fusion.
15. method as claimed in claim 11, wherein, the processing of one of described filter module comprises merges metadata and described video.
16. method as claimed in claim 11, wherein, described original video is to be carried out at least three filter steps of separating with the 3rd filter module by described two filter modules to the described processing of the video of handling, and all transfer of data are therebetween controlled by described controller.
17. method as claimed in claim 16, wherein, described filter step is respectively data read/conversion; Assembly is handled; And data fusion.
18. method as claimed in claim 11, wherein, when described second filter module was carried out described second treatment step, described first filter module was carried out the described first filter step to the original video that receives subsequently.
19. method as claimed in claim 11, wherein, the video of described processing is transferred to described visualization engine.
20. method as claimed in claim 11, wherein, it is illustrative that described filter module is based on the XML file, and the transfer of data between the wherein said filter module is by described XML file configuration.
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| CNA2005800180164A Pending CN101375598A (en) | 2004-06-01 | 2005-06-01 | Video flashlight/vision alert |
| CNA2005800260173A Pending CN101375599A (en) | 2004-06-01 | 2005-06-01 | Method and system for performing video flashlight |
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| JP4985807B2 (en) * | 2009-04-15 | 2012-07-25 | ソニー株式会社 | Playback apparatus and playback method |
| CN101635840B (en) * | 2009-08-26 | 2011-04-20 | 中兴通讯股份有限公司 | Video monitoring scene switching method and video monitoring system |
| CN102156424A (en) * | 2010-12-09 | 2011-08-17 | 广东高新兴通信股份有限公司 | Sensing system and processing method of custom event and processing rule |
| CN104137154B (en) * | 2011-08-05 | 2019-02-01 | 霍尼韦尔国际公司 | Systems and methods for managing video data |
| KR20190133080A (en) * | 2011-09-19 | 2019-11-29 | 아이사이트 모빌 테크놀로지 엘티디 | Touch free interface for augmented reality systems |
| CN103096032B (en) * | 2012-04-17 | 2015-12-02 | 北京明科全讯技术有限公司 | A kind of overall view monitoring system and method |
| FR2993385B1 (en) * | 2012-07-16 | 2014-08-01 | Egidium Technologies | METHOD AND SYSTEM FOR REAL-TIME 3D TRACK RECONSTRUCTION |
| CN103873453B (en) * | 2012-12-18 | 2019-05-24 | 中兴通讯股份有限公司 | Immerse communication customer end, server and the method for obtaining content view |
| US9398283B2 (en) * | 2013-02-12 | 2016-07-19 | Honeywell International Inc. | System and method of alarm and history video playback |
| CN104463948B (en) * | 2014-09-22 | 2017-05-17 | 北京大学 | Seamless visualization method for three-dimensional virtual reality system and geographic information system |
| CN105653110B (en) * | 2014-11-13 | 2021-02-12 | 安定宝公司 | Method for creating rule based on electronic map of monitoring system |
| US9900583B2 (en) * | 2014-12-04 | 2018-02-20 | Futurewei Technologies, Inc. | System and method for generalized view morphing over a multi-camera mesh |
| DE102014226122A1 (en) * | 2014-12-16 | 2016-06-16 | Robert Bosch Gmbh | Transcoder device and server-client arrangement with the transcoder device |
| US9728071B2 (en) * | 2015-03-12 | 2017-08-08 | Honeywell International Inc. | Method of performing sensor operations based on their relative location with respect to a user |
| CN109963111A (en) * | 2017-12-14 | 2019-07-02 | 游丰安 | Clustering safety management system |
| CN110730333A (en) * | 2019-10-23 | 2020-01-24 | 深圳震有科技股份有限公司 | Monitoring video switching processing method and device, computer equipment and medium |
| CN114631323A (en) * | 2019-11-05 | 2022-06-14 | 巴科股份有限公司 | Zone adaptive video generation |
| EP3833013B1 (en) * | 2019-12-05 | 2021-09-29 | Axis AB | Video management system and method for dynamic displaying of video streams |
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- 2005-06-01 CN CNA2005800180164A patent/CN101375598A/en active Pending
- 2005-06-01 CN CNA2005800260173A patent/CN101375599A/en active Pending
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| CN101375599A (en) | 2009-02-25 |
| CN101341753A (en) | 2009-01-07 |
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