CN111563185A - Video picture display method, device, terminal and storage medium based on GIS system - Google Patents
Video picture display method, device, terminal and storage medium based on GIS system Download PDFInfo
- Publication number
- CN111563185A CN111563185A CN202010195665.8A CN202010195665A CN111563185A CN 111563185 A CN111563185 A CN 111563185A CN 202010195665 A CN202010195665 A CN 202010195665A CN 111563185 A CN111563185 A CN 111563185A
- Authority
- CN
- China
- Prior art keywords
- longitude
- current
- latitude
- vehicle model
- video frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
- G06F16/78—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/787—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using geographical or spatial information, e.g. location
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/005—General purpose rendering architectures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
Abstract
The invention provides a video image display method based on a GIS system, which comprises the following steps: acquiring a current video frame of a vehicle event data recorder at the current moment, a previous video frame of the previous moment of the current moment and a next video frame of the next moment of the current moment; rendering a vehicle model on a three-dimensional scene simulation platform interface of a geographic information system; and calculating the longitude and latitude coordinates of the vehicle model at the current moment according to the longitude and latitude coordinates of the vehicle corresponding to the video frames at the previous moment, the current moment and the next moment, loading the corresponding video frames to the vehicle model, and controlling the vehicle model to play during running. The invention also provides a video picture display device, a terminal and a storage medium based on the GIS system. According to the invention, the longitude and latitude coordinates of the vehicle model at the current moment are calculated according to the longitude and latitude coordinates of the vehicle corresponding to the video frames at the previous moment, the current moment and the next moment, and the current video frame is loaded to the vehicle model, so that the synchronous movement of the vehicle position corresponding to the current video frame and the vehicle model position is ensured, and the simulated driving process of the vehicle model is vividly displayed.
Description
Technical Field
The invention relates to the technical field of video acquisition and processing, in particular to a video picture display method, a video picture display device, a video picture display terminal and a storage medium based on a GIS (geographic information system).
Background
Although the development of automobile data recorders and Geographic Information systems (GIS systems for short) is mature at home and abroad, it is not negligible that the integration of the automobile data recorders and the GIS systems has many problems to be solved. The main problems are that, because the video content of the automobile data recorder is in the first view angle, the relevance between the video content and the GIS and the geography is small, moreover, most videos integrated into the GIS are aerial-shot at fixed points by an unmanned aerial vehicle, videos shot by the unmanned aerial vehicle are generally displayed in a plane or terrain form after 90 degrees of overlooking, however, the automobile data recorder adopts the vehicle driving process of shooting at the head-up angle, the head-up angle can not avoid the phenomena of shielding and the like among vehicles, so that the scene design is difficult, other products are more frequently that video contents are independently placed and are displayed by cutting off with the GIS, the visual focus of a user needs to be switched back and forth between the video and the GIS, the user experience is poor, in combination with the whole GIS scene, the vehicle model has serious disjointed feeling, and the video content in the automobile data recorder and the vehicle model and the advancing route in the GIS system cannot be well mapped.
Disclosure of Invention
In view of the above, it is necessary to provide a video image display method, device, terminal and storage medium based on a GIS system, which calculates the longitude and latitude coordinates of the vehicle model at the current time according to the longitude and latitude coordinates of the vehicle corresponding to the video frames acquired by the vehicle event data recorder, and loads the current video frames into the vehicle model, so as to well form a mapping relationship between the video contents in the vehicle event data recorder and the vehicle model and the traveling route in the GIS system.
The first aspect of the present invention provides a video image display method based on a GIS system, the method comprising:
acquiring a current video frame of a vehicle event data recorder at the current moment, a previous video frame of the previous moment of the current moment and a next video frame of the next moment of the current moment;
rendering a vehicle model on a three-dimensional scene simulation platform interface of a geographic information system;
according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame, the longitude and latitude coordinates of the vehicle model at the current moment are calculated;
loading the current video frame in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment;
and controlling the vehicle model to play the current video frame in the running process.
Preferably, the calculating the longitude and latitude coordinates of the vehicle model at the current moment according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame includes:
calculating a longitude coefficient and a latitude coefficient of the current moment;
calculating the relative offset of longitude and latitude at the current moment;
and calculating to obtain the longitude and latitude coordinates of the vehicle model at the current moment according to the longitude and latitude coefficient of the current moment, the longitude and latitude relative offset of the current moment, the previous longitude and latitude coordinates and the next longitude and latitude coordinates.
Preferably, the calculating the longitude coefficient of the current time and the latitude coefficient of the current time includes:
the time of the current moment is differed from the time of the last moment to obtain a first difference value;
the time of the next moment is differenced with the time of the previous moment to obtain a second difference value;
and calculating the quotient of the first difference value and the second difference value as the longitude coefficient of the current time and the latitude coefficient of the current time.
Preferably, the calculating the longitude and latitude relative offset of the current time includes:
acquiring longitude coordinates and latitude coordinates of a central point of the vehicle model at the current moment;
the longitude coordinate of the current moment is differed with the longitude coordinate of the current moment central point to obtain the relative longitude offset of the current moment;
and subtracting the latitude coordinate of the current moment and the latitude coordinate of the central point of the current moment to obtain the relative latitude offset of the current moment.
Preferably, the obtaining of the longitude and latitude coordinate of the vehicle model at the current time by calculating according to the longitude and latitude coefficient of the current time, the longitude and latitude relative offset of the current time, the previous longitude and latitude coordinate, and the next longitude and latitude coordinate includes:
multiplying the difference of the next longitude coordinate minus the previous longitude coordinate by the longitude coefficient of the current moment to obtain a first longitude value;
calculating the sum of the first longitude value and the last longitude coordinate and the longitude relative offset of the current moment to obtain the longitude coordinate of the current moment of the vehicle model;
multiplying the difference of the next latitude coordinate minus the previous latitude coordinate by the latitude coefficient of the current moment to obtain a first latitude value;
and calculating the sum of the first latitude value and the last latitude coordinate and the relative latitude offset of the current moment to obtain the latitude coordinate of the vehicle model at the current moment.
Preferably, the loading the current video frame in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment comprises:
acquiring video elements in the current video frame;
and loading the video elements into the vehicle model as entity materials.
Preferably, in the process of controlling the vehicle model to play the current video frame during the driving process, the method further includes:
acquiring longitude and latitude coordinates of the vehicle model at the current moment; acquiring a white mold, a fine mold and oblique photography which are stored in advance according to the longitude and latitude coordinates of the current moment; loading the white model, the fine model and the oblique photography to the periphery of the current driving road of the vehicle model on a three-dimensional scene simulation platform interface of the geographic information system on the geographic information system; or
Acquiring vehicle information in a road where the longitude and latitude coordinates of the vehicle model at the current moment are located; rendering a corresponding vehicle model on a three-dimensional scene simulation platform interface of the geographic information system based on the vehicle information; and loading the corresponding vehicle models in the same direction or opposite directions appearing in the current video frame onto the current driving road.
A second aspect of the present invention provides a video screen display device based on a GIS system, the device comprising:
the acquisition module is used for acquiring a current video frame of the automobile data recorder at the current moment, a previous video frame of the current moment and a next video frame of the current moment;
the rendering module is used for rendering the vehicle model on a three-dimensional scene simulation platform interface of the geographic information system;
the calculation module is used for calculating the longitude and latitude coordinates of the vehicle model at the current moment according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame;
the loading module is used for loading the current video frame into the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment;
and the control module is used for controlling the current video frame to be played in the driving process of the vehicle model.
A third aspect of the present invention provides a terminal comprising a processor for implementing the GIS system based video picture display method when executing a computer program stored in a memory.
A fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the GIS system-based video screen display method.
In summary, the video frame display method, the video frame display device, the video frame display terminal and the video frame display storage medium based on the GIS system according to the present invention obtain a current video frame of a current time of a vehicle event data recorder, a previous video frame of a previous time of the current time and a next video frame of a next time of the current time; rendering a vehicle model on a three-dimensional scene simulation platform interface of a geographic information system; according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame, the longitude and latitude coordinates of the vehicle model at the current moment are calculated; loading the current video frame in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment; and controlling the vehicle model to play the current video frame in the running process. On one hand, according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the longitude and latitude coordinates of the vehicle model at the current moment are calculated according to the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame, so that the synchronous movement of the position of the current video frame and the position of the vehicle model is ensured; on the other hand, the current video frame is loaded in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment, so that the vehicle model in the GIS system forms mapping association of real-time geographic positions, the video content is synchronized, the simulated driving process of the vehicle model is vividly displayed, and meanwhile, the video content in the driving recorder and the vehicle model and the driving route in the GIS system form a mapping relationship well.
Drawings
Fig. 1 is a flowchart of a video image display method based on a GIS system according to an embodiment of the present invention.
Fig. 2 is a structural diagram of a video screen display device based on the GIS system according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a terminal according to a third embodiment of the present invention.
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example one
Fig. 1 is a flowchart of a video image display method based on a GIS system according to an embodiment of the present invention.
In this embodiment, the video picture display method based on the GIS system may be applied to a terminal, and for a terminal that needs to perform video picture display based on the GIS system, the video picture display function based on the GIS system provided by the method of the present invention may be directly integrated on the terminal, or may be operated in the terminal in the form of a Software development kit (SKD).
As shown in fig. 1, the method for displaying a video frame based on a GIS system specifically includes the following steps, and the order of the steps in the flowchart may be changed and some may be omitted according to different requirements.
S11: the method comprises the steps of obtaining a current video frame of a vehicle event data recorder at the current moment, a previous video frame of the previous moment of the current moment and a next video frame of the next moment of the current moment.
In this embodiment, the car event data recorder is an electronic device for recording related information such as images during the driving of a vehicle, and generates a video with a predetermined duration after receiving video frames continuously collected by a camera and extracting the video frames in segments, extracts an audio corresponding to each video segment by a microphone, and combines each extracted video segment and audio segment and records the video and audio segment at the same time. Each video recorded by the automobile data recorder comprises the current time and longitude and latitude coordinates corresponding to the current time.
S12: and rendering the vehicle model on a three-dimensional scene simulation platform interface of the geographic information system.
In this embodiment, car model adopts three-dimensional engine Cesium to render car model on geographic information system's three-dimensional scene simulation platform interface, Cesium's bottom adopts the Web graphics library to realize rendering, the Web graphics library passes through HTML script itself and realizes the creation of Web interactive three-dimensional animation, utilizes the graphics hardware acceleration function of bottom to realize rendering, at the in-process of rendering, car model adopts two-sided material, the screen visual angle of car model sets up the first visual angle that the passerby looked outside from the car in to with rendering good car model loads in geographic information system's three-dimensional scene simulation platform interface.
The Cesium is an open source framework based on JavaScript, can be used for drawing a 3D earth in a browser and drawing a map on the earth (supporting tile services in multiple formats), does not need any plug-in support, but the browser must support WebGL, supports multiple data visualization modes, and can draw various geometric figures, imported pictures and even 3D models.
S13: and calculating the longitude and latitude coordinates of the vehicle model at the current moment according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame.
In this embodiment, since the vehicle model in the scene changes with time and is accompanied by a change in displacement, in order to avoid that a vehicle corresponding to the longitude and latitude coordinates of the current video frame continuously obtained from the vehicle data recorder cannot move synchronously with the vehicle model as time advances, the longitude and latitude coordinates of the current time of the vehicle model need to be dynamically calculated, and the video frame corresponding to the longitude and latitude coordinates of the current time is used as the current video frame of the current time of the vehicle model.
Preferably, the calculating the longitude and latitude coordinates of the vehicle model at the current moment includes:
calculating a longitude coefficient and a latitude coefficient of the current moment;
calculating the relative offset of longitude and latitude at the current moment;
and calculating to obtain the longitude and latitude coordinates of the vehicle model at the current moment according to the longitude and latitude coefficient of the current moment, the longitude and latitude relative offset of the current moment, the previous longitude and latitude coordinates and the next longitude and latitude coordinates.
In this embodiment, the longitude and latitude relative offset refers to a longitude relative offset and a latitude relative offset. The longitude and latitude coordinates of the current time refer to the longitude coordinates and the latitude coordinates of the current time.
Further, the calculating the longitude coefficient and the latitude coefficient of the current time includes:
the time of the current moment is differed from the time of the last moment to obtain a first difference value;
the time of the next moment is differenced with the time of the previous moment to obtain a second difference value;
calculating a quotient of the first difference and the second difference as a longitude coefficient of the current time and a latitude coefficient of the current time.
In this embodiment, in order to calculate the longitude and latitude coordinates of the vehicle model at the current time, a longitude and latitude coefficient of the current time needs to be calculated first, and the longitude and latitude coefficient is represented by k.
Further, the calculating the relative offset of the longitude and latitude at the current time includes:
acquiring longitude coordinates and latitude coordinates of a central point of the vehicle model at the current moment;
the longitude coordinate of the current moment is differed with the longitude coordinate of the current moment central point to obtain the relative longitude offset of the current moment;
and subtracting the latitude coordinate of the current moment and the latitude coordinate of the central point of the current moment to obtain the relative latitude offset of the current moment.
In this embodiment, because the vehicle models rendered in the GIS system have different sizes, the longitude and latitude coordinates of the central point of each vehicle model are also different, the longitude and latitude coordinates obtained from the vehicle event data recorder are the longitude and latitude coordinates of the position of the vehicle event data recorder, the installation position of the vehicle event data recorder of each vehicle is related to the size of the vehicle, the deviation values of the positions of the vehicle event data recorders of different vehicles and the position of the corresponding vehicle central point are different, and the influence possibly generated by the relative offset of the longitude and latitude at the current time is taken into consideration when calculating the longitude and latitude coordinates of the vehicle model at the current time, so that the accuracy of the longitude and latitude coordinates at the current time of the vehicle model is improved, and the synchronous movement of the position of the current video frame and the position of the vehicle model is ensured.
Specifically, the obtaining of the longitude and latitude coordinate of the vehicle model at the current time by calculating according to the longitude and latitude coefficient of the current time, the relative offset of the longitude and latitude of the current time, the previous longitude and latitude coordinate, and the next longitude and latitude coordinate includes:
multiplying the difference of the next longitude coordinate minus the previous longitude coordinate by the longitude coefficient of the current moment to obtain a first longitude value;
calculating the sum of the first longitude value and the last longitude coordinate and the longitude relative offset of the current moment to obtain the longitude coordinate of the current moment of the vehicle model;
multiplying the difference of the next latitude coordinate minus the previous latitude coordinate by the latitude coefficient of the current moment to obtain a first latitude value;
and calculating the sum of the first latitude value and the last latitude coordinate and the relative latitude offset of the current moment to obtain the latitude coordinate of the vehicle model at the current moment.
In this embodiment, in the process of rendering the vehicle model, the rendering interval is very small, which is about 1/60s, the interval between the GPS and the longitude and latitude coordinates may reach several seconds or even ten and several seconds due to the reason of technology and data volume, but because the momentum of the vehicle is large, the speed change in these ten and several seconds is almost negligible, especially under the condition of sudden braking, the displacement amount for obtaining the longitude and latitude coordinates is small, and it can be approximately considered that the last longitude and latitude coordinate at the previous moment and the next longitude and latitude coordinate at the next moment are in uniform motion, so that the longitude and latitude coordinate at the current moment of the vehicle model can be determined by the last longitude and latitude coordinate at the previous moment and the next longitude and latitude coordinate at the next moment.
Illustratively, the time immediately preceding the current time t is t1The next time of the current time t is t2Calculating the longitude and latitude coefficient of the current time t as
Obtaining longitude coordinates X of the center point of the vehicle model at the current moment t1Latitude coordinate Y of the center point of the current time t1Longitude coordinate X of current time t of the automobile data recorder2And the latitude coordinate Y of the current moment t of the automobile data recorder2Calculating the relative longitude offset of the current time of the vehicle model as x0＝X2-X1Relative latitude offset y0＝Y2-Y1And calculating the longitude coordinate of the current moment of the vehicle model as follows: x ═ x1+k×(x2-x1)+x0(ii) a And calculating the latitude coordinate of the vehicle model at the current moment as follows: y ═ y1+k×(y2-y1)+y0(ii) a Wherein, the x1Is t1Longitude coordinate of time, y1Is t1Latitude coordinate of time, said x2Is t2Longitude coordinate of time, y2Is t2Latitude coordinate of time, x0Relative offset of longitude coordinate at time t, y0Is the relative offset of the latitude coordinate at the time t.
S14: and loading the current video frame into the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment.
In this embodiment, in order to enhance the connection between the current scene and the video of the automobile data recorder, the video in the automobile data recorder is loaded into the automobile model for playing.
Preferably, the loading the current video frame in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment comprises:
acquiring video elements in the current video frame;
and loading the video elements into the vehicle model as entity materials.
In this embodiment, a video element in the current video frame is loaded to a preset position of the center console of the vehicle model as an entity material by using a viewer. The preset position may be set at a position where the central console can increase a playing area, or may be set at a position where the video is clearly played.
In this embodiment, the video elements in the current video frame are loaded into the vehicle model as an entity material in the center, so that mapping association of real-time geographic positions of the vehicle model in the GIS system is realized, a dynamic expression form is used in the same time axis, that is, video content is synchronized, a simulated driving process of the vehicle model is vividly displayed, and meanwhile, a mapping relationship is well formed between the video content in the drive recorder and the vehicle model and the driving route in the GIS system.
S15: and controlling the vehicle model to play the current video frame in the running process.
In the embodiment, the current longitude and latitude coordinates of the vehicle model at the current moment are calculated by continuously acquiring the current video frame of the vehicle data recorder at the current moment, the previous video frame of the previous moment of the current moment and the next video frame of the next moment of the current moment, and the current video frame is continuously loaded in the vehicle model for playing, so that the synchronous movement of the position of the current video frame and the position of the vehicle model is ensured, and the display effect is enhanced.
Further, in the process of controlling the vehicle model to play the current video frame during the driving process, the method further includes:
acquiring longitude and latitude coordinates of the vehicle model at the current moment; acquiring a white mold, a fine mold and oblique photography which are stored in advance according to the longitude and latitude coordinates of the current moment; loading the white model, the fine model and the oblique photography to the periphery of the current driving road of the vehicle model on a three-dimensional scene simulation platform interface of the geographic information system on the geographic information system; or
Acquiring vehicle information in a road where the longitude and latitude coordinates of the vehicle model at the current moment are located; rendering a corresponding vehicle model on a three-dimensional scene simulation platform interface of the geographic information system based on the vehicle information; and loading the corresponding vehicle models in the same direction or opposite directions appearing in the current video frame onto the current driving road.
In this embodiment, the geographic information system mainly includes contents such as online map loading, three-dimensional terrain, point-plane geographic element identification, geographic measurement, oblique photography live-action model display, and the like, white models, fine models, and oblique photography data in the geographic information system are obtained in advance and stored in a database, and white models, fine models, and oblique photography around the current driving road of the vehicle model are loaded through the center 3DTileset (options) in the Web end center, wherein the white models, the fine models, and the oblique photography are loaded by using 3DTiles format files, and data in b3dm format is used; or obtaining vehicle information in a road where the vehicle model currently runs, rendering a corresponding vehicle model in a GIS system according to the vehicle information, and loading the same-direction or opposite-direction vehicle model appearing in the current video frame on the road where the vehicle model currently runs by adopting a viewer.
In this embodiment, the modeling of the vehicle model around the current driving road is loaded on the three-dimensional scene simulation platform interface of the geographic information system, so that the vehicle model is combined with the entire GIS scene, and the video content in the vehicle event data recorder, the vehicle model in the GIS system, and the traveling route form a mapping relationship.
Further, in the modeling process of loading the vehicle model around the current driving road on the three-dimensional scene simulation platform interface of the geographic information system, information prompts can be filled in the white model, the fine model and the oblique photography, for example: guideboards, signs, stations, pedestrians, non-motorized vehicles, pedestrians or trees, etc. By filling information prompts in the modeling, the display of a video scene is enhanced, and the interactive experience of a user is enriched.
In summary, in the video image display method based on the GIS system of this embodiment, on one hand, according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame, the longitude and latitude coordinates of the vehicle model at the current moment are calculated, so that the position of the current video frame and the position of the vehicle model are ensured to move synchronously; on the other hand, the current video frame is loaded in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment, so that the vehicle model in the GIS system forms mapping association of real-time geographic positions, the video content is synchronized, the simulated driving process of the vehicle model is vividly displayed, and meanwhile, the video content in the driving recorder and the vehicle model and the driving route in the GIS system form a mapping relationship well.
Example two
Fig. 2 is a structural diagram of a video screen display device based on the GIS system according to a second embodiment of the present invention.
In some embodiments, the GIS system-based video screen display device 20 may include a plurality of functional modules composed of program code segments. The program codes of the respective program segments in the GIS system-based video screen display device 20 may be stored in the memory of the terminal and executed by the at least one processor to perform (see fig. 1 for details) the display of the GIS system-based video screen.
In the present embodiment, the GIS system-based video screen display device 20 may be divided into a plurality of functional modules according to the functions performed by the device. The functional module may include: an acquisition module 201, a rendering module 202, a calculation module 203, a loading module 204, and a control module 205. The module referred to herein is a series of computer program segments capable of being executed by at least one processor and capable of performing a fixed function and is stored in memory. In the present embodiment, the functions of the modules will be described in detail in the following embodiments.
The acquisition module 201: the method is used for acquiring a current video frame of the automobile data recorder at the current moment, a previous video frame of the current moment and a next video frame of the current moment.
In this embodiment, the car event data recorder is an electronic device for recording related information such as images during the driving of a vehicle, and generates a video with a predetermined duration after receiving video frames continuously collected by a camera and extracting the video frames in segments, extracts an audio corresponding to each video segment by a microphone, and combines each extracted video segment and audio segment and records the video and audio segment at the same time. Each video recorded by the automobile data recorder comprises the current time and longitude and latitude coordinates corresponding to the current time.
The rendering module 202: the method is used for rendering the car model on a three-dimensional scene simulation platform interface of the geographic information system.
In this embodiment, car model adopts three-dimensional engine Cesium to render car model on geographic information system's three-dimensional scene simulation platform interface, Cesium's bottom adopts the Web graphics library to realize rendering, the Web graphics library passes through HTML script itself and realizes the creation of Web interactive three-dimensional animation, utilizes the graphics hardware acceleration function of bottom to realize rendering, at the in-process of rendering, car model adopts two-sided material, the screen visual angle of car model sets up the first visual angle that the passerby looked outside from the car in to with rendering good car model loads in geographic information system's three-dimensional scene simulation platform interface.
The Cesium is an open source framework based on JavaScript, can be used for drawing a 3D earth in a browser and drawing a map on the earth (supporting tile services in multiple formats), does not need any plug-in support, but the browser must support WebGL, supports multiple data visualization modes, and can draw various geometric figures, imported pictures and even 3D models.
The calculation module 203: and the longitude and latitude coordinates of the vehicle model at the current moment are calculated according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame.
In this embodiment, since the vehicle model in the scene changes with time and is accompanied by a change in displacement, in order to avoid that a vehicle corresponding to the longitude and latitude coordinates of the current video frame continuously obtained from the vehicle data recorder cannot move synchronously with the vehicle model as time advances, the longitude and latitude coordinates of the current time of the vehicle model need to be dynamically calculated, and the video frame corresponding to the longitude and latitude coordinates of the current time is used as the current video frame of the current time of the vehicle model.
Preferably, the calculating module 203 is configured to calculate the longitude and latitude coordinates of the vehicle model at the current time, and includes:
calculating a longitude coefficient and a latitude coefficient of the current moment;
calculating the relative offset of longitude and latitude at the current moment;
and calculating to obtain the longitude and latitude coordinates of the vehicle model at the current moment according to the longitude and latitude coefficient of the current moment, the longitude and latitude relative offset of the current moment, the previous longitude and latitude coordinates and the next longitude and latitude coordinates.
In this embodiment, the longitude and latitude relative offset refers to a longitude relative offset and a latitude relative offset. The longitude and latitude coordinates of the current time refer to the longitude coordinates and the latitude coordinates of the current time.
Further, the calculating the longitude coefficient and the latitude coefficient of the current time includes:
the time of the current moment is differed from the time of the last moment to obtain a first difference value;
the time of the next moment is differenced with the time of the previous moment to obtain a second difference value;
calculating a quotient of the first difference and the second difference as a longitude coefficient of the current time and a latitude coefficient of the current time.
In this embodiment, in order to calculate the longitude and latitude coordinates of the vehicle model at the current time, a longitude and latitude coefficient of the current time needs to be calculated first, and the longitude and latitude coefficient is represented by k.
Further, the calculating the relative offset of the longitude and latitude at the current time includes:
acquiring longitude coordinates and latitude coordinates of a central point of the vehicle model at the current moment;
the longitude coordinate of the current moment is differed with the longitude coordinate of the current moment central point to obtain the relative longitude offset of the current moment;
and subtracting the latitude coordinate of the current moment and the latitude coordinate of the central point of the current moment to obtain the relative latitude offset of the current moment.
In this embodiment, because the vehicle models rendered in the GIS system have different sizes, the longitude and latitude coordinates of the central point of each vehicle model are also different, the longitude and latitude coordinates obtained from the vehicle event data recorder are the longitude and latitude coordinates of the position of the vehicle event data recorder, the installation position of the vehicle event data recorder of each vehicle is related to the size of the vehicle, the deviation values of the positions of the vehicle event data recorders of different vehicles and the position of the corresponding vehicle central point are different, and the influence possibly generated by the relative offset of the longitude and latitude at the current time is taken into consideration when calculating the longitude and latitude coordinates of the vehicle model at the current time, so that the accuracy of the longitude and latitude coordinates at the current time of the vehicle model is improved, and the synchronous movement of the position of the current video frame and the position of the vehicle model is ensured.
Specifically, the obtaining of the longitude and latitude coordinate of the vehicle model at the current time by calculating according to the longitude and latitude coefficient of the current time, the relative offset of the longitude and latitude of the current time, the previous longitude and latitude coordinate, and the next longitude and latitude coordinate includes:
multiplying the difference of the next longitude coordinate minus the previous longitude coordinate by the longitude coefficient of the current moment to obtain a first longitude value;
calculating the sum of the first longitude value and the last longitude coordinate and the longitude relative offset of the current time point to obtain the longitude coordinate of the current time of the vehicle model;
multiplying the difference of the next latitude coordinate minus the previous latitude coordinate by the latitude coefficient of the current moment to obtain a first latitude value;
and calculating the sum of the first latitude value and the last latitude coordinate and the relative latitude offset of the current moment to obtain the latitude coordinate of the vehicle model at the current moment.
In this embodiment, in the process of rendering the vehicle model, the rendering interval is very small, which is about 1/60s, the interval between the GPS and the longitude and latitude coordinates may reach several seconds or even ten and several seconds due to the reason of technology and data volume, but because the momentum of the vehicle is large, the speed change in these ten and several seconds is almost negligible, especially under the condition of sudden braking, the displacement amount for obtaining the longitude and latitude coordinates is small, and it can be approximately considered that the last longitude and latitude coordinate at the previous moment and the next longitude and latitude coordinate at the next moment are in uniform motion, so that the longitude and latitude coordinate at the current moment of the vehicle model can be determined by the last longitude and latitude coordinate at the previous moment and the next longitude and latitude coordinate at the next moment.
Illustratively, the time immediately preceding the current time t is t1The next time of the current time t is t2Calculating the longitude and latitude coefficient of the current time t as
Obtaining longitude coordinates X of the center point of the vehicle model at the current moment t1Latitude coordinate Y of the center point of the current time t1Longitude coordinate X of current time t of the automobile data recorder2And the latitude coordinate Y of the current moment t of the automobile data recorder2Calculating the current time of the vehicle modelThe relative shift amount of the degree is x0＝X2-X1Relative latitude offset y0＝Y2-Y1And calculating the longitude coordinate of the current moment of the vehicle model as follows: x ═ x1+k×(x2-x1)+x0(ii) a And calculating the latitude coordinate of the vehicle model at the current moment as follows: y ═ y1+k×(y2-y1)+y0(ii) a Wherein, the x1Is t1Longitude coordinate of time, y1Is t1Latitude coordinate of time, said x2Is t2Longitude coordinate of time, y2Is t2Latitude coordinate of time, x0Relative offset of longitude coordinate at time t, y0Is the relative offset of the latitude coordinate at the time t.
The loading module 204: and the video frame loading module is used for loading the current video frame in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment.
In this embodiment, in order to enhance the connection between the current scene and the video of the automobile data recorder, the video in the automobile data recorder is loaded into the automobile model for playing.
Preferably, the loading module 204 loads the current video frame in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current time includes:
acquiring video elements in the current video frame;
and the video element assignment is loaded into the vehicle model as an entity material.
In this embodiment, a video element in the current video frame is loaded to a preset position of the center console of the vehicle model as an entity material by using a viewer. The preset position may be set at a position where the central console can increase a playing area, or may be set at a position where the video is clearly played.
In this embodiment, the video elements in the current video frame are loaded into the vehicle model as an entity material in the center, so that mapping association of real-time geographic positions of the vehicle model in the GIS system is realized, a dynamic expression form is used in the same time axis, that is, video content is synchronized, a simulated driving process of the vehicle model is vividly displayed, and meanwhile, a mapping relationship is well formed between the video content in the drive recorder and the vehicle model and the driving route in the GIS system.
The control module 205: and the video playing control module is used for controlling the current video frame to be played in the driving process of the vehicle model.
In the embodiment, the current longitude and latitude coordinates of the vehicle model at the current moment are calculated by continuously acquiring the current video frame of the vehicle data recorder at the current moment, the previous video frame of the previous moment of the current moment and the next video frame of the next moment of the current moment, and the current video frame is continuously loaded in the vehicle model for playing, so that the synchronous movement of the position of the current video frame and the position of the vehicle model is ensured, and the display effect is enhanced.
Further, in the process that the control module 205 controls the vehicle model to play the current video frame during the driving process, the obtaining module 201: the longitude and latitude coordinates of the vehicle model at the current moment are also obtained; the obtaining module 201 is further configured to: acquiring a white mold, a fine mold and oblique photography which are stored in advance according to the longitude and latitude coordinates of the current moment; the loading module 204: and the system is also used for loading the white model, the fine model and the oblique photography to the periphery of the current driving road of the vehicle model on a three-dimensional scene simulation platform interface of the geographic information system. Or
The obtaining module 201: the vehicle model is also used for acquiring vehicle information in a road where the longitude and latitude coordinates of the vehicle model are located at the current moment; the rendering module 202: the system is also used for rendering a corresponding vehicle model on a three-dimensional scene simulation platform interface of the geographic information system based on the vehicle information; the loading module 204: and the method is also used for loading the corresponding vehicle models in the same direction or opposite directions appearing in the current video frame onto the current driving road.
In the embodiment, the geographic information system mainly comprises contents such as online map loading, three-dimensional terrain, point-plane geographic element identification, geographic measurement, oblique photography live-action model display and the like, white molds, fine molds and oblique photography data in the geographic information system are obtained in advance and stored in a database, and the white molds, the fine molds and the oblique photography around the current driving road of the vehicle model are loaded through a Cesium3DTileset (options) in a Web end Cesium, wherein the white molds, the fine molds and the oblique photography are loaded by adopting 3DTiles format files and using b3dm format data; or obtaining vehicle information in a road where the vehicle model currently runs, rendering a corresponding vehicle model in a GIS system according to the vehicle information, and loading the same-direction or opposite-direction vehicle model appearing in the current video frame on the road where the vehicle model currently runs by adopting a viewer.
In this embodiment, the modeling of the vehicle model around the current driving road is loaded on the three-dimensional scene simulation platform interface of the geographic information system, so that the vehicle model is combined with the entire GIS scene, and the video content in the vehicle event data recorder, the vehicle model in the GIS system, and the traveling route form a mapping relationship.
Further, in the modeling process of loading the vehicle model around the current driving road on the three-dimensional scene simulation platform interface of the geographic information system, information prompts can be filled in the white model, the fine model and the oblique photography, for example: guideboards, signs, stations, pedestrians, non-motorized vehicles, pedestrians or trees, etc. By filling information prompts in the modeling, the display of a video scene is enhanced, and the interactive experience of a user is enriched.
In summary, in the video image display device based on the GIS system of this embodiment, on one hand, according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame, the longitude and latitude coordinates of the vehicle model at the current moment are calculated, so that the position of the current video frame and the position of the vehicle model are ensured to move synchronously; on the other hand, the current video frame is loaded in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment, so that the vehicle model in the GIS system forms mapping association of real-time geographic positions, the video content is synchronized, the simulated driving process of the vehicle model is vividly displayed, and meanwhile, the video content in the driving recorder and the vehicle model and the driving route in the GIS system form a mapping relationship well.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a terminal according to a third embodiment of the present invention. In the preferred embodiment of the present invention, the terminal 3 includes a memory 31, at least one processor 32, at least one communication bus 33, and a transceiver 34.
It will be appreciated by those skilled in the art that the configuration of the terminal shown in fig. 3 is not limiting to the embodiments of the present invention, and may be a bus-type configuration or a star-type configuration, and the terminal 3 may include more or less hardware or software than those shown, or a different arrangement of components.
In some embodiments, the terminal 3 is a terminal capable of automatically performing numerical calculation and/or information processing according to preset or stored instructions, and the hardware includes but is not limited to a microprocessor, an application specific integrated circuit, a programmable gate array, a digital processor, an embedded device, and the like. The terminal 3 may further include a client device, which includes, but is not limited to, any electronic product capable of performing human-computer interaction with a client through a keyboard, a mouse, a remote controller, a touch panel, or a voice control device, for example, a personal computer, a tablet computer, a smart phone, a digital camera, and the like.
It should be noted that the terminal 3 is only an example, and other existing or future electronic products, such as those that can be adapted to the present invention, should also be included in the scope of the present invention, and are included herein by reference.
In some embodiments, the memory 31 is used for storing program codes and various data, such as the video screen display device 20 based on the GIS system installed in the terminal 3, and realizes high-speed and automatic access to programs or data during the operation of the terminal 3. The Memory 31 includes a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), a One-time Programmable Read-Only Memory (OTPROM), an electronically Erasable rewritable Read-Only Memory (Electrically-Erasable Programmable Read-Only Memory (EEPROM)), an optical Read-Only Memory (CD-ROM) or other optical disk Memory, a magnetic disk Memory, a tape Memory, or any other medium readable by a computer capable of carrying or storing data.
In some embodiments, the at least one processor 32 may be composed of an integrated circuit, for example, a single packaged integrated circuit, or may be composed of a plurality of integrated circuits packaged with the same or different functions, including one or more Central Processing Units (CPUs), microprocessors, digital Processing chips, graphics processors, and combinations of various control chips. The at least one processor 32 is a Control Unit (Control Unit) of the terminal 3, connects various components of the entire terminal 3 by using various interfaces and lines, and executes various functions of the terminal 3 and processes data, for example, a function of displaying a video screen based on a GIS system, by operating or executing programs or modules stored in the memory 31 and calling data stored in the memory 31.
In some embodiments, the at least one communication bus 33 is arranged to enable connection communication between the memory 31 and the at least one processor 32 or the like.
Although not shown, the terminal 3 may further include a power supply (such as a battery) for supplying power to various components, and preferably, the power supply may be logically connected to the at least one processor 32 through a power management device, so as to implement functions of managing charging, discharging, and power consumption through the power management device. The power supply may also include any component of one or more dc or ac power sources, recharging devices, power failure detection circuitry, power converters or inverters, power status indicators, and the like. The terminal 3 may further include various sensors, a bluetooth module, a Wi-Fi module, and the like, which are not described herein again.
It is to be understood that the described embodiments are for purposes of illustration only and that the scope of the appended claims is not limited to such structures.
The integrated unit implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a terminal, or a network device) or a processor (processor) to execute parts of the methods according to the embodiments of the present invention.
In a further embodiment, in conjunction with fig. 2 (device modules), the at least one processor 32 may execute an operating device of the terminal 3 and various installed application programs (such as the GIS system-based video screen display device 20), program codes, and the like, for example, the respective modules described above.
The memory 31 has program code stored therein, and the at least one processor 32 can call the program code stored in the memory 31 to perform related functions. For example, the modules illustrated in fig. 2 are program codes stored in the memory 31 and executed by the at least one processor 32, so as to implement the functions of the modules for the purpose of displaying video pictures based on the GIS system.
In one embodiment of the present invention, the memory 31 stores a plurality of instructions that are executed by the at least one processor 32 to implement the functionality of GIS system based video screen display.
Specifically, the at least one processor 32 may refer to the description of the relevant steps in the embodiment corresponding to fig. 1, and details are not repeated here.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional module.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or that the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (10)
1. A video picture display method based on a GIS system is characterized by comprising the following steps:
acquiring a current video frame of a vehicle event data recorder at the current moment, a previous video frame of the previous moment of the current moment and a next video frame of the next moment of the current moment;
rendering a vehicle model on a three-dimensional scene simulation platform interface of a geographic information system;
according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame, the longitude and latitude coordinates of the vehicle model at the current moment are calculated;
loading the current video frame in the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment;
and controlling the vehicle model to play the current video frame in the running process.
2. The method of claim 1, wherein the calculating the longitude and latitude coordinates of the vehicle model at the current moment according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame comprises:
calculating a longitude coefficient and a latitude coefficient of the current moment;
calculating the relative offset of longitude and latitude at the current moment;
and calculating to obtain the longitude and latitude coordinates of the vehicle model at the current moment according to the longitude and latitude coefficient of the current moment, the longitude and latitude relative offset of the current moment, the previous longitude and latitude coordinates and the next longitude and latitude coordinates.
3. The method of claim 2, wherein the calculating the longitude coefficient for the current time and the latitude coefficient for the current time comprises:
the time of the current moment is differed from the time of the last moment to obtain a first difference value;
the time of the next moment is differenced with the time of the previous moment to obtain a second difference value;
calculating a quotient of the first difference and the second difference as a longitude coefficient of the current time and a latitude coefficient of the current time.
4. The method of claim 2, wherein said calculating the relative offset of latitude and longitude at the current time comprises:
acquiring longitude coordinates and latitude coordinates of a central point of the vehicle model at the current moment;
the longitude coordinate of the current moment is differed with the longitude coordinate of the current moment central point to obtain the relative longitude offset of the current moment;
and subtracting the latitude coordinate of the current moment and the latitude coordinate of the central point of the current moment to obtain the relative latitude offset of the current moment.
5. The method of claim 4, wherein the calculating the longitude and latitude coordinates of the vehicle model at the current time according to the longitude and latitude coefficients of the current time, the longitude and latitude relative offset of the current time, the previous longitude and latitude coordinate and the next longitude coordinate comprises:
multiplying the difference of the next longitude coordinate minus the previous longitude coordinate by the longitude coefficient of the current moment to obtain a first longitude value;
calculating the sum of the first longitude value and the last longitude coordinate and the longitude relative offset of the current moment to obtain the longitude coordinate of the current moment of the vehicle model;
multiplying the difference of the next latitude coordinate minus the previous latitude coordinate by the latitude coefficient of the current moment to obtain a first latitude value;
and calculating the sum of the first latitude value and the last latitude coordinate and the relative latitude offset of the current moment to obtain the latitude coordinate of the vehicle model at the current moment.
6. The method of any one of claims 1 to 5, wherein said loading the current video frame into the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current time comprises:
acquiring video elements in the current video frame;
and loading the video elements into the vehicle model as entity materials.
7. The method according to any one of claims 1 to 5, wherein in controlling the playing of the current video frame during the driving of the vehicle model, the method further comprises:
acquiring longitude and latitude coordinates of the vehicle model at the current moment; acquiring a white mold, a fine mold and oblique photography which are stored in advance according to the longitude and latitude coordinates of the current moment; loading the white model, the fine model and the oblique photography to the periphery of the current driving road of the vehicle model on a three-dimensional scene simulation platform interface of the geographic information system; or
Acquiring vehicle information in a road where the longitude and latitude coordinates of the vehicle model at the current moment are located; rendering a corresponding vehicle model on a three-dimensional scene simulation platform interface of the geographic information system based on the vehicle information; and loading the corresponding vehicle models in the same direction or opposite directions appearing in the current video frame onto the current driving road.
8. A GIS system-based video picture display apparatus, comprising:
the acquisition module is used for acquiring a current video frame of the automobile data recorder at the current moment, a previous video frame of the current moment and a next video frame of the current moment;
the rendering module is used for rendering the vehicle model on a three-dimensional scene simulation platform interface of the geographic information system;
the calculation module is used for calculating the longitude and latitude coordinates of the vehicle model at the current moment according to the current longitude and latitude coordinates of the vehicle corresponding to the current video frame, the previous longitude and latitude coordinates of the vehicle corresponding to the previous video frame and the next longitude and latitude coordinates of the vehicle corresponding to the next video frame;
the loading module is used for loading the current video frame into the vehicle model according to the longitude and latitude coordinates of the vehicle model at the current moment;
and the control module is used for controlling the current video frame to be played in the driving process of the vehicle model.
9. A terminal characterized in that it comprises a processor for implementing a video picture display method based on a GIS system according to any one of claims 1 to 7 when executing a computer program stored in a memory.
10. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the GIS system-based video screen display method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010195665.8A CN111563185A (en) | 2020-03-19 | 2020-03-19 | Video picture display method, device, terminal and storage medium based on GIS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010195665.8A CN111563185A (en) | 2020-03-19 | 2020-03-19 | Video picture display method, device, terminal and storage medium based on GIS system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111563185A true CN111563185A (en) | 2020-08-21 |
Family
ID=72071449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010195665.8A Pending CN111563185A (en) | 2020-03-19 | 2020-03-19 | Video picture display method, device, terminal and storage medium based on GIS system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111563185A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927384A (en) * | 2021-01-13 | 2021-06-08 | 南斗六星系统集成有限公司 | Data transmission method and system for 3D digital sand table vehicle simulation |
| CN116773216A (en) * | 2023-06-12 | 2023-09-19 | 江苏泽景汽车电子股份有限公司 | Test method, device, system, storage medium and electronic equipment |
-
2020
- 2020-03-19 CN CN202010195665.8A patent/CN111563185A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927384A (en) * | 2021-01-13 | 2021-06-08 | 南斗六星系统集成有限公司 | Data transmission method and system for 3D digital sand table vehicle simulation |
| CN112927384B (en) * | 2021-01-13 | 2022-02-18 | 南斗六星系统集成有限公司 | Data transmission method and system for 3D digital sand table vehicle simulation |
| CN116773216A (en) * | 2023-06-12 | 2023-09-19 | 江苏泽景汽车电子股份有限公司 | Test method, device, system, storage medium and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107423445B (en) | A kind of map data processing method, device and storage medium | |
| US20190101407A1 (en) | Navigation method and device based on augmented reality, and electronic device | |
| CN101005972A (en) | Simulation apparatus, simulation program, and simulation method | |
| CN111563185A (en) | Video picture display method, device, terminal and storage medium based on GIS system | |
| CN109741431B (en) | Two-dimensional and three-dimensional integrated electronic map frame | |
| CN101122464A (en) | GPS navigation system road display method, device and apparatus | |
| CN110120087B (en) | Label marking method and device for three-dimensional virtual sand table and terminal equipment | |
| WO2021238145A1 (en) | Generation method and apparatus for ar scene content, display method and apparatus therefor, and storage medium | |
| WO2009121904A1 (en) | Sequential image generation | |
| US20230258465A1 (en) | Interactive method based on electronic map, apparatus, computer device and storage medium | |
| CN106846431B (en) | Unified Web graph drawing system supporting multiple expression forms | |
| CN115713877A (en) | Fault removal guiding method suitable for ship electromechanical equipment fault information simulation | |
| CN113345108A (en) | Augmented reality data display method and device, electronic equipment and storage medium | |
| CN109657028B (en) | Method for sharing edge prevention management and control element business information to spatial data | |
| CN113936098B (en) | Rendering method and device during volume cloud interaction and storage medium | |
| KR101408325B1 (en) | Train simulator apparatus, method for providing train simulator and recording medium thereof | |
| CN116485966A (en) | Video picture rendering method, device, equipment and medium | |
| CN110992859B (en) | Advertising board display method and device based on AR guide | |
| CN114359498A (en) | Map display method, device, equipment and computer program product | |
| CN113936097A (en) | Volume cloud rendering method and device and storage medium | |
| CN113936096A (en) | Customized rendering method and device of volume cloud and storage medium | |
| CN109976884A (en) | Switching method between intelligent terminal and application program | |
| CN112015324B (en) | Guide board control method and related equipment | |
| CN202939937U (en) | Film watching experience projection device for demonstrating automobile travelling | |
| CN111709157B (en) | General virtual stage parallel simulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |