CN112399128B - Video communication system and method based on big data - Google Patents
Video communication system and method based on big data Download PDFInfo
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- CN112399128B CN112399128B CN202011281462.7A CN202011281462A CN112399128B CN 112399128 B CN112399128 B CN 112399128B CN 202011281462 A CN202011281462 A CN 202011281462A CN 112399128 B CN112399128 B CN 112399128B
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- 238000004891 communication Methods 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 42
- 230000000977 initiatory effect Effects 0.000 claims abstract description 11
- 239000000284 extract Substances 0.000 claims abstract description 7
- 238000003702 image correction Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000002194 synthesizing effect Effects 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
Abstract
The invention discloses a video communication system and a method based on big data, wherein the video communication system comprises a geographic position database, a video initiating and collecting module, a video extracting and processing module and a video sending module, wherein the geographic position database is used for storing geographic positions needing to be subjected to image correction during video communication, the video initiating and collecting module respectively collects the geographic positions of a first video terminal and a second video terminal when the first video terminal initiates video communication connection to the second video terminal through a video server, a terminal to be corrected is selected according to the geographic positions, the video extracting and processing module extracts and collects video images and audio of the terminal to be corrected, and processes the video images, and the video sending module transmits the processed video images and audio to another video terminal.
Description
Technical Field
The invention relates to the technical field of big data, in particular to a video communication system and method based on big data.
Background
With the rapid development of network communication technology and various terminal devices, network communication methods such as video call have become an indispensable component in life of people, and with the endless application of video communication technology in daily chat, remote education, medical services and other aspects, the higher the requirements of users for video communication are.
However, due to the complexity of the network environment, in the prior art, a phenomenon of video communication jamming often occurs, so that the experience of video communication of a user is affected.
Disclosure of Invention
The present invention is directed to a video communication system and method based on big data, so as to solve the problems set forth in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the video communication system based on big data comprises a geographic position database, a video initiating and collecting module, a video extracting and processing module and a video sending module, wherein the geographic position database is used for storing geographic positions needing to be subjected to image correction when video communication is carried out, the video initiating and collecting module respectively collects geographic positions of a first video terminal and a second video terminal when the first video terminal initiates video communication connection to the second video terminal through a video server, a terminal to be corrected is selected according to the geographic positions, the video extracting and processing module extracts and collects video images and audios of the terminal to be corrected, the video images are processed, and the video sending module transmits the processed video images and audios to another video terminal.
Further, the video initiating and collecting module comprises a geographic position judging module, a first selecting module and a second selecting module, when the geographic position of one video terminal in the first video terminal and the second video terminal is the geographic position in the geographic position database, the first selecting module is made to select the video terminal with the geographic position being the geographic position in the geographic position database as the terminal to be corrected, and when the geographic positions of the first video terminal and the second video terminal do not belong to the geographic positions in the geographic position database, the second selecting module is made to select the terminal to be corrected according to the video communication connection quality of the first video terminal and the second video terminal; the second selecting module comprises a communication connection quality comparing module, a duration collecting module and a duration judging module, wherein the communication connection quality comparing module is used for comparing the video communication connection quality of the first video terminal and the video communication connection quality of the second video terminal with a connection quality threshold respectively, when the video communication connection quality at a certain moment is smaller than or equal to the connection quality threshold, the moment is a moment to be corrected, the duration collecting module is used for collecting the duration of the moment to be corrected of the video terminal at the corresponding geographic position, and the duration judging module is used for selecting the video terminal as the terminal to be corrected when judging that the duration of the moment to be corrected of the video terminal at the corresponding geographic position is larger than or equal to the duration threshold.
Further, the video extraction processing module comprises a first image acquisition module, a first image processing module, a history communication judging module, a first transmission module and a second transmission module, wherein the first image acquisition module acquires a current video communication image of a terminal to be corrected as a first image after video communication is established between a first video terminal and a second video terminal, the first image processing module performs image processing on the first image to acquire a scene image and a character image in the first image, the history communication judging module is used for judging whether a history communication video for video communication between the terminal to be corrected and other video terminals at the current geographic position exists in a video server, when the history communication video exists, the first transmission module transmits video communication according to history communication video content and first image content, when the history communication video does not exist, the second transmission module acquires audio of the terminal to be corrected and transmits the audio to the video server, and the video server synthesizes the audio and the first image and then enables the video sending module to transmit.
Further, the first transmission module comprises a historical image extraction module, a scene image comparison module, an audio position real-time acquisition module, a real-time position judgment module, a second image processing module and a multiple synthesis processing module, wherein the historical image extraction module extracts a scene image of a terminal to be corrected in video communication at the geographic position from a historical communication video, the scene image comparison module compares the similarity of the extracted scene image with that of a first image, when the similarity of the extracted scene image is greater than or equal to a similarity threshold value, the audio position real-time acquisition module acquires the audio and the geographic position of the terminal to be corrected in real time and transmits the audio and the geographic position of the terminal to be corrected to a video server, the real-time position judgment module judges whether the geographic position of the terminal to be corrected is changed, the video server synthesizes the audio and the first image and then enables the video transmission module to transmit the video, and the changed geographic position is set to be the second geographic position, the second image processing module acquires the video image at the second position in the reference video and the second image, the second image is subjected to image processing, and the video image in the multiple synthesis processing module is synthesized with the first image after the image and the video image is transmitted.
A video communication method based on big data, the video communication method comprising the steps of:
step S1: a geographic position database is established in advance, and the geographic position database is used for storing geographic positions needing image correction during video communication;
step S2: when the first video terminal initiates video communication connection to the second video terminal through the video server, the geographic positions of the first video terminal and the second video terminal are respectively acquired,
if the geographic position of one video terminal in both the first video terminal and the second video terminal is the geographic position in the geographic position database, the video terminal is a terminal to be corrected, and the step S3 is performed;
if the geographic positions of the first video terminal and the second video terminal do not belong to the geographic positions in the geographic position database, after video communication connection is established between the first video terminal and the second video terminal, acquiring video communication connection quality of the first video terminal and the second video terminal, and selecting a terminal to be corrected according to the video communication connection quality;
step S3: and extracting and collecting video images and audios of the terminal to be corrected, processing the video images, and transmitting the processed video images and audios to another video terminal by the video server.
Further, in the step S2, selecting the terminal to be modified according to the video communication connection quality includes:
and comparing the video communication connection quality of the first video terminal and the video communication connection quality of the second video terminal with a connection quality threshold respectively, when the video communication connection quality at a certain moment is smaller than or equal to the connection quality threshold, the moment is the moment to be corrected, and if the duration time of the moment to be corrected of a certain video terminal at the corresponding geographic position is larger than or equal to a duration time threshold, the video terminal is the terminal to be corrected.
Further, the step S3 further includes:
step S31: after video communication is established between a first video terminal and a second video terminal, acquiring a current video communication image of a terminal to be corrected as a first image, performing image processing on the first image, and acquiring a scene image and a character image in the first image;
step S32: judging whether a historical communication video for video communication between the terminal to be corrected and other video terminals at the current geographic position exists in the video server,
if a historical communication video exists, extracting a scene image of the terminal to be corrected, which is in video communication at the geographic position, from the historical communication video, comparing the similarity of the extracted scene image with the scene image in the first image, and if the similarity of the extracted scene image and the scene image is greater than or equal to a similarity threshold value, taking the historical communication video as a reference video of the video communication, and transmitting the video communication by a video server according to the reference video and the geographic position;
and if the historical communication video does not exist, acquiring the audio of the terminal to be corrected, transmitting the audio to a video server, and transmitting the audio and the first image to another video terminal after the video server synthesizes the audio and the first image.
Further, the transmitting the video communication by the video server according to the reference video and the geographic location in the step S32 includes:
the audio frequency and the geographic position of the terminal to be corrected are collected and transmitted to a video server,
if the geographic position of the terminal to be corrected is unchanged, transmitting the collected audio of the terminal to be corrected to a video server, and transmitting the synthesized audio and the first image to another video terminal by the video server;
if the geographic position of the terminal to be corrected is changed, setting the changed geographic position as a second geographic position, collecting a video image of the second geographic position in the reference video as a second image, carrying out image processing on the second image to obtain a scene image in the second image, synthesizing the scene image in the second image and the character image in the first image by a video server, synthesizing the scene image and the character image in the first image, and transmitting the synthesized scene image and the character image to another video terminal.
Further, if no history communication video exists, the method further comprises the following steps:
when detecting that the geographic position of the terminal to be corrected changes, if the communication connection quality at a certain moment is larger than the connection quality threshold, acquiring a current video communication image of the terminal to be corrected as a third image, acquiring audio of the terminal to be corrected, transmitting the audio to a video server, synthesizing the audio and the third image by the video server, and transmitting the synthesized audio and the third image to another video terminal.
Further, the video communication connection quality includes a network packet loss rate and a network delay.
Compared with the prior art, the invention has the following beneficial effects: under the condition of judging that the network environment is poor, the method and the device split the image and the audio of the video communication of the user, then synthesize the image and the audio, and improve the fluency of the video call by reducing the data volume of the video communication.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a block diagram of a big data based video communication system of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides the following technical solutions: the video communication system based on big data comprises a geographic position database, a video initiating and collecting module, a video extracting and processing module and a video sending module, wherein the geographic position database is used for storing geographic positions needing to be subjected to image correction when video communication is carried out, the video initiating and collecting module respectively collects geographic positions of a first video terminal and a second video terminal when the first video terminal initiates video communication connection to the second video terminal through a video server, a terminal to be corrected is selected according to the geographic positions, the video extracting and processing module extracts and collects video images and audios of the terminal to be corrected, the video images are processed, and the video sending module transmits the processed video images and audios to another video terminal.
The video initiating and acquiring module comprises a geographic position judging module, a first selecting module and a second selecting module, wherein when the geographic position of a video terminal in both the first video terminal and the second video terminal is the geographic position in a geographic position database, the first selecting module is made to select the video terminal with the geographic position being the geographic position in the geographic position database as a terminal to be corrected, and when the geographic positions of both the first video terminal and the second video terminal do not belong to the geographic positions in the geographic position database, the second selecting module is made to select the terminal to be corrected according to the video communication connection quality of the first video terminal and the second video terminal; the second selecting module comprises a communication connection quality comparing module, a duration collecting module and a duration judging module, wherein the communication connection quality comparing module is used for comparing the video communication connection quality of the first video terminal and the video communication connection quality of the second video terminal with a connection quality threshold respectively, when the video communication connection quality at a certain moment is smaller than or equal to the connection quality threshold, the moment is a moment to be corrected, the duration collecting module is used for collecting the duration of the moment to be corrected of the video terminal at the corresponding geographic position, and the duration judging module is used for selecting the video terminal as the terminal to be corrected when judging that the duration of the moment to be corrected of the video terminal at the corresponding geographic position is larger than or equal to the duration threshold.
The video extraction processing module comprises a first image acquisition module, a first image processing module, a historical communication judging module, a first transmission module and a second transmission module, wherein the first image acquisition module acquires a current video communication image of a terminal to be corrected as a first image after video communication is established between a first video terminal and a second video terminal, the first image processing module carries out image processing on the first image to acquire a scene image and a character image in the first image, the historical communication judging module is used for judging whether a historical communication video for video communication between the terminal to be corrected and other video terminals at the current geographic position exists in a video server, when the historical communication video exists, the first transmission module is enabled to transmit video communication according to historical communication video content and first image content, when the historical communication video does not exist, the second transmission module is enabled to acquire audio of the terminal to be corrected and transmit the audio to the video server, and the video server is enabled to carry out transmission after the audio and the first image are synthesized.
The first transmission module comprises a historical image extraction module, a scene image comparison module, an audio position real-time acquisition module, a real-time position judgment module, a second image processing module and a multiple synthesis processing module, wherein the historical image extraction module extracts a scene image of a terminal to be corrected, which is in video communication at the geographic position, from a historical communication video, the scene image comparison module compares the similarity between the extracted scene image and a scene image in a first image, when the similarity is greater than or equal to a similarity threshold value, the audio position real-time acquisition module acquires the audio frequency and the geographic position of the terminal to be corrected in real time and transmits the audio frequency and the geographic position of the terminal to be corrected to a video server, the real-time position judgment module judges whether the geographic position of the terminal to be corrected is changed, the video server synthesizes the audio frequency and the first image and then enables the video transmission module to transmit the video transmission, under the condition that the geographic position is changed, the second image processing module acquires the video image of the second geographic position in a reference video as the second image, processes the second image, the audio image in the second image, and the multiple synthesis processing module synthesizes the video image in the second image after the video transmission.
A video communication method based on big data, the video communication method comprising the steps of:
step S1: a geographic position database is established in advance, and the geographic position database is used for storing geographic positions needing image correction during video communication; the geographic position in the geographic position database can be acquired by acquiring the video communication connection quality of the user at the geographic position, and when the frequency of generating the video communication connection quality of a certain geographic position is higher than or equal to the connection quality threshold value, the geographic position can be stored in the geographic position database;
step S2: when the first video terminal initiates video communication connection to the second video terminal through the video server, the geographic positions of the first video terminal and the second video terminal are respectively acquired,
if the geographic position of one video terminal in both the first video terminal and the second video terminal is the geographic position in the geographic position database, the video terminal is a terminal to be corrected, and the step S3 is performed;
if the geographic positions of the first video terminal and the second video terminal do not belong to the geographic positions in the geographic position database, after video communication connection is established between the first video terminal and the second video terminal, acquiring video communication connection quality of the first video terminal and the second video terminal, and selecting a terminal to be corrected according to the video communication connection quality;
step S3: and extracting and collecting video images and audios of the terminal to be corrected, processing the video images, and transmitting the processed video images and audios to another video terminal by the video server.
In the step S2, selecting the terminal to be modified according to the video communication connection quality includes:
and comparing the video communication connection quality of the first video terminal and the video communication connection quality of the second video terminal with a connection quality threshold respectively, when the video communication connection quality at a certain moment is smaller than or equal to the connection quality threshold, the moment is the moment to be corrected, and if the duration time of the moment to be corrected of a certain video terminal at the corresponding geographic position is larger than or equal to a duration time threshold, the video terminal is the terminal to be corrected.
The step S3 further includes:
step S31: after video communication is established between a first video terminal and a second video terminal, acquiring a current video communication image of a terminal to be corrected as a first image, performing image processing on the first image, and acquiring a scene image and a character image in the first image;
step S32: judging whether a historical communication video for video communication between the terminal to be corrected and other video terminals at the current geographic position exists in the video server,
if a historical communication video exists, extracting a scene image of the terminal to be corrected, which is in video communication at the geographic position, from the historical communication video, comparing the similarity of the extracted scene image with the scene image in the first image, and if the similarity of the extracted scene image and the scene image is greater than or equal to a similarity threshold value, taking the historical communication video as a reference video of the video communication, and transmitting the video communication by a video server according to the reference video and the geographic position;
and if the historical communication video does not exist, acquiring the audio of the terminal to be corrected, transmitting the audio to a video server, and transmitting the audio and the first image to another video terminal after the video server synthesizes the audio and the first image.
The transmitting the video communication by the video server according to the reference video and the geographic location in the step S32 includes:
the audio frequency and the geographic position of the terminal to be corrected are collected and transmitted to a video server,
if the geographic position of the terminal to be corrected is unchanged, transmitting the collected audio of the terminal to be corrected to a video server, and transmitting the synthesized audio and the first image to another video terminal by the video server;
if the geographic position of the terminal to be corrected is changed, setting the changed geographic position as a second geographic position, collecting a video image of the second geographic position in the reference video as a second image, carrying out image processing on the second image to obtain a scene image in the second image, synthesizing the scene image in the second image and the character image in the first image by a video server, synthesizing the scene image and the character image in the first image, and transmitting the synthesized scene image and the character image to another video terminal. In the process of transmitting video call by the video server, the video server synthesizes a scene image and a character image into a complete image in advance, then the video server acquires audio from a terminal to be corrected, and then the video server synthesizes the synthesized complete image and audio and transmits the synthesized complete image and audio to another video terminal, so that the terminal to be corrected only needs to transmit audio signals and geographic positions to the server, the data volume transmitted to the video server by the terminal to be corrected is reduced, and the clamping phenomenon in the transmission process is reduced;
the method further comprises the following steps if no historical communication video exists:
when detecting that the geographic position of the terminal to be corrected changes, if the communication connection quality at a certain moment is larger than the connection quality threshold, acquiring a current video communication image of the terminal to be corrected as a third image, acquiring audio of the terminal to be corrected, transmitting the audio to a video server, synthesizing the audio and the third image by the video server, and transmitting the synthesized audio and the third image to another video terminal.
The video communication connection quality comprises a network packet loss rate and a network time delay. When the network packet loss rate is greater than or equal to the packet loss rate threshold and the network time delay is greater than or equal to the time delay threshold, the video communication connection quality is less than or equal to the connection quality threshold; otherwise, the video communication connection quality is greater than the connection quality threshold.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The video communication system based on big data is characterized by comprising a geographic position database, a video initiating and collecting module, a video extracting and processing module and a video sending module, wherein the geographic position database is used for storing geographic positions needing image correction when video communication is carried out, the video initiating and collecting module respectively collects geographic positions of a first video terminal and a second video terminal when the first video terminal initiates video communication connection to the second video terminal through a video server, a terminal to be corrected is selected according to the geographic positions, the video extracting and processing module extracts and collects video images and audio of the terminal to be corrected, processes the video images, and the video sending module transmits the processed video images and audio to the other video terminal;
the video initiating and acquiring module comprises a geographic position judging module, a first selecting module and a second selecting module, wherein when the geographic position of a video terminal in both the first video terminal and the second video terminal is the geographic position in a geographic position database, the first selecting module is made to select the video terminal with the geographic position being the geographic position in the geographic position database as a terminal to be corrected, and when the geographic positions of both the first video terminal and the second video terminal do not belong to the geographic positions in the geographic position database, the second selecting module is made to select the terminal to be corrected according to the video communication connection quality of the first video terminal and the second video terminal; the second selection module comprises a communication connection quality comparison module, a duration acquisition module and a duration judgment module, wherein the communication connection quality comparison module is used for comparing the video communication connection quality of a first video terminal and a second video terminal with a connection quality threshold respectively, when the video communication connection quality at a certain moment is smaller than or equal to the connection quality threshold, the moment is a moment to be corrected, the duration acquisition module is used for acquiring the duration of the moment to be corrected of the video terminal at the corresponding geographic position, and the duration judgment module is used for selecting the video terminal as the terminal to be corrected when judging that the duration of the moment to be corrected of the video terminal at the corresponding geographic position is larger than or equal to the duration threshold;
the video extraction processing module comprises a first image acquisition module, a first image processing module, a historical communication judging module, a first transmission module and a second transmission module, wherein the first image acquisition module acquires a current video communication image of a terminal to be corrected as a first image after video communication is established between a first video terminal and a second video terminal, the first image processing module carries out image processing on the first image to acquire a scene image and a character image in the first image, the historical communication judging module is used for judging whether a historical communication video for video communication between the terminal to be corrected and other video terminals at the current geographic position exists in a video server, when the historical communication video exists, the first transmission module transmits video communication according to historical communication video content and first image content, and when the historical communication video does not exist, the second transmission module acquires audio of the terminal to be corrected and transmits the audio to the video server, and the video server synthesizes the audio and the first image and then enables the video sending module to carry out sending transmission;
the first transmission module comprises a historical image extraction module, a scene image comparison module, an audio position real-time acquisition module, a real-time position judgment module, a second image processing module and a multiple synthesis processing module, wherein the historical image extraction module extracts a scene image of a terminal to be corrected, which is in video communication at the geographic position, from a historical communication video, the scene image comparison module compares the similarity between the extracted scene image and a scene image in a first image, when the similarity is greater than or equal to a similarity threshold value, the audio position real-time acquisition module acquires the audio frequency and the geographic position of the terminal to be corrected in real time and transmits the audio frequency and the geographic position of the terminal to be corrected to a video server, the real-time position judgment module judges whether the geographic position of the terminal to be corrected is changed, the video server synthesizes the audio frequency and the first image and then enables the video transmission module to transmit the video transmission, under the condition that the geographic position is changed, the second image processing module acquires the video image of the second geographic position in a reference video as the second image, processes the second image, the audio image in the second image, and the multiple synthesis processing module synthesizes the video image in the second image after the video transmission.
2. A video communication method based on big data is characterized in that: the video communication method comprises the following steps:
step S1: a geographic position database is established in advance, and the geographic position database is used for storing geographic positions needing image correction during video communication;
step S2: when the first video terminal initiates video communication connection to the second video terminal through the video server, the geographic positions of the first video terminal and the second video terminal are respectively acquired,
if the geographic position of one video terminal in both the first video terminal and the second video terminal is the geographic position in the geographic position database, the video terminal is a terminal to be corrected, and the step S3 is performed;
if the geographic positions of the first video terminal and the second video terminal do not belong to the geographic positions in the geographic position database, after video communication connection is established between the first video terminal and the second video terminal, acquiring video communication connection quality of the first video terminal and the second video terminal, and selecting a terminal to be corrected according to the video communication connection quality;
step S3: extracting and collecting video images and audios of a terminal to be corrected, processing the video images, and transmitting the processed video images and audios to another video terminal by a video server;
in the step S2, selecting the terminal to be modified according to the video communication connection quality includes:
the video communication connection quality of the first video terminal and the video communication connection quality of the second video terminal are respectively compared with a connection quality threshold, when the video communication connection quality at a certain moment is smaller than or equal to the connection quality threshold, the moment is the moment to be corrected, and if the duration of the moment to be corrected of the certain video terminal at the corresponding geographic position is larger than or equal to a duration threshold, the video terminal is the terminal to be corrected;
the step S3 further includes:
step S31: after video communication is established between a first video terminal and a second video terminal, acquiring a current video communication image of a terminal to be corrected as a first image, performing image processing on the first image, and acquiring a scene image and a character image in the first image;
step S32: judging whether a historical communication video for video communication between the terminal to be corrected and other video terminals at the current geographic position exists in the video server,
if a historical communication video exists, extracting a scene image of the terminal to be corrected, which is in video communication at the geographic position, from the historical communication video, comparing the similarity of the extracted scene image with the scene image in the first image, and if the similarity of the extracted scene image and the scene image is greater than or equal to a similarity threshold value, taking the historical communication video as a reference video of the video communication, and transmitting the video communication by a video server according to the reference video and the geographic position;
if no historical communication video exists, acquiring the audio of the terminal to be corrected, transmitting the audio to a video server, synthesizing the audio and the first image by the video server, and transmitting the synthesized audio and the first image to another video terminal;
the transmitting the video communication by the video server according to the reference video and the geographic location in the step S32 includes:
the audio frequency and the geographic position of the terminal to be corrected are collected and transmitted to a video server,
if the geographic position of the terminal to be corrected is unchanged, transmitting the collected audio of the terminal to be corrected to a video server, and transmitting the synthesized audio and the first image to another video terminal by the video server;
if the geographic position of the terminal to be corrected is changed, setting the changed geographic position as a second geographic position, collecting a video image of the second geographic position in the reference video as a second image, carrying out image processing on the second image to obtain a scene image in the second image, synthesizing the scene image in the second image and the character image in the first image by a video server, synthesizing the scene image and the character image in the first image, and then transmitting the synthesized scene image and the character image to another video terminal;
the method further comprises the following steps if no historical communication video exists:
when detecting that the geographic position of the terminal to be corrected changes, if the communication connection quality at a certain moment is larger than the connection quality threshold, acquiring a current video communication image of the terminal to be corrected as a third image, acquiring audio of the terminal to be corrected, transmitting the audio to a video server, synthesizing the audio and the third image by the video server, and transmitting the synthesized audio and the third image to another video terminal;
the video communication connection quality comprises a network packet loss rate and a network time delay.
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