CN112399128A - Video communication system and method based on big data - Google Patents
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- 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 16
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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, the geographic position database is used for storing geographic positions needing 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, and accordingly selects a terminal to be corrected, the video extracting and processing module extracts and collects video images and audios of the terminal to be corrected and processes the video images, and the video sending module transmits the processed video images and audios to the other video terminal.
Description
Technical Field
The invention relates to the technical field of big data, in particular to a video communication system and a 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 people's life, and with the endless applications of video communication technology in daily chat, remote education, medical services and other aspects, the higher the user's requirements for video communication are.
However, due to the complexity of the network environment, the video communication is often blocked in the prior art, thereby affecting the experience of the video call of the user.
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 mentioned in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: a 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 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, the video extracting and processing module extracts and collects video images and audio of the terminals to be corrected and processes the video images, and the video sending module transmits the processed video images and audio to the other video terminal.
Further, the video initiating and collecting module comprises a geographic position judging module, a first selecting module and a second selecting module, wherein the geographic position judging module has a geographic position of a video terminal in the first video terminal and the second video terminal as a geographic position in a geographic position database, so that the first selecting module selects the video terminal with the geographic position as the geographic position in the geographic position database as a 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 position in the geographic position database, the second selecting module selects 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, the communication connection quality comparison module is used for comparing video communication connection quality of the first video terminal and 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 less than or equal to the connection quality threshold, the moment is a moment to be corrected, the duration acquisition module is used for acquiring duration of the video terminal at the moment to be corrected at a corresponding geographic position, and when the duration judgment module judges that the duration of the video terminal at the moment to be corrected at the corresponding geographic position is greater than or equal to the duration threshold, the video terminal is selected as the terminal to be corrected.
Further, the video extraction processing module comprises a first image acquisition module, a first image processing module, a historical communication judgment module, a first transmission module and a second transmission module, wherein the first image acquisition module acquires a current video communication image of the 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 figure image in the first image, the historical communication judgment module is used for judging whether a historical communication video for performing 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 used for transmitting video communication according to the historical communication video content and the first image content, and when the historical communication video does not exist, and the second transmission module collects the 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 transmits and transmits the audio and the first image to the video sending module.
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 the terminal to be corrected at the geographic position for video communication from a historical communication video, the scene image comparison module compares the similarity between the extracted scene image and the scene image in the first image, when the similarity between the two 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 to the video server, and the video server synthesizes the audio and the first image and transmits the audio and the first image to the video sending module under the condition that whether the geographic position of the terminal to be corrected is changed and is not changed at the geographic position, and under the condition that the geographic position is changed, setting the changed geographic position as a second geographic position, acquiring a video image of the second geographic position in the reference video as a second image by the second image processing module, 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 a character image in the first image by the multiple synthesis processing module, then synthesizing the scene image with the audio, and enabling the video sending module to send and transmit.
A video communication method based on big data comprises the following steps:
step S1: pre-establishing a geographic position database, wherein the geographic position database is used for storing geographic positions needing image correction during video communication;
step S2: when a first video terminal initiates a video communication connection to a second video terminal through a video server, respectively acquiring the geographic positions of the first video terminal and the second video terminal,
if the geographic position of one video terminal exists in the first video terminal and the second video terminal and is the geographic position in the geographic position database, the video terminal is the terminal to be corrected, and the step S3 is executed;
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, acquiring the video communication connection quality of the first video terminal and the second video terminal after the first video terminal and the second video terminal establish video communication connection, and selecting a terminal to be corrected according to the video communication connection quality;
step S3: and extracting and collecting the video image and the audio of the terminal to be corrected, processing the video image, and transmitting the processed video image and audio to another video terminal by the video server.
Further, the selecting the terminal to be modified according to the video communication connection quality in step S2 includes:
and comparing the video communication connection quality of the first video terminal and the second video terminal with a connection quality threshold respectively, wherein when the video communication connection quality at a certain moment is less than or equal to the connection quality threshold, the moment is a moment to be corrected, and if the duration of the moment to be corrected at the corresponding geographic position of a certain video terminal is greater than or equal to the duration threshold, the video terminal is a 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, and performing image processing on the first image to acquire a scene image and a character image in the first image;
step S32: judging whether a historical communication video for carrying out video communication between the terminal to be corrected and other video terminals at the current geographic position exists in the video server,
if the historical communication video exists, extracting a scene image of the terminal to be corrected, which carries out video communication at the geographic position, from the historical communication video, carrying out similarity comparison on the extracted scene image and the scene image in the first image, and if the similarity between the extracted scene image and the scene image in the first 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 the 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 and transmitting the audio to a video server, and synthesizing the audio and the first image by the video server and transmitting the synthesized audio and the first image to another video terminal.
Further, the step S32, the transmitting, by the video server, the video communication according to the reference video and the geographic location includes:
collecting the audio and the geographic position of the terminal to be corrected and transmitting the audio and the geographic position to a video server,
if the geographic position of the terminal to be corrected is unchanged, transmitting the audio collected by the terminal to be corrected to a video server, and synthesizing the audio and the first image by the video server and transmitting the synthesized audio to another video terminal;
if the geographical position of the terminal to be corrected is changed, the changed geographical position is set as a second geographical position, a video image of the second geographical position in the reference video is collected as a second image, the second image is subjected to image processing to obtain a scene image in the second image, and the video server synthesizes the scene image in the second image with the character image in the first image, synthesizes the synthesized scene image with the audio and then transmits the synthesized image to another video terminal.
Further, the method further includes, if no historical communication video exists:
when the geographical position of the terminal to be corrected is detected to be changed, if the communication connection quality at a certain moment is larger than a connection quality threshold value, a current video communication image of the terminal to be corrected is collected to be a third image, audio of the terminal to be corrected is collected and transmitted to a video server, and the video server synthesizes the audio and the third image and transmits 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 for carrying out the video communication.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of a big data based video communication system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a 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 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, the video extracting and processing module extracts and collects video images and audio of the terminals to be corrected and 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 collecting module comprises a geographic position judging module, a first selecting module and a second selecting module, wherein the geographic position judging module has a geographic position of a video terminal in a first video terminal and a geographic position in a geographic position database in the first video terminal and a second video terminal, the first selecting module selects the video terminal with the geographic position as the geographic position in the geographic position database as a terminal to be corrected, and the second selecting module selects the terminal to be corrected according to the video communication connection quality of the first video terminal and the second video terminal when the geographic positions of the first video terminal and the second video terminal do not belong to the geographic position in the geographic position database; the second selection module comprises a communication connection quality comparison module, a duration acquisition module and a duration judgment module, the communication connection quality comparison module is used for comparing video communication connection quality of the first video terminal and 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 less than or equal to the connection quality threshold, the moment is a moment to be corrected, the duration acquisition module is used for acquiring duration of the video terminal at the moment to be corrected at a corresponding geographic position, and when the duration judgment module judges that the duration of the video terminal at the moment to be corrected at the corresponding geographic position is greater than or equal to the duration threshold, the video terminal is selected as the terminal to be corrected.
The video extraction processing module comprises a first image acquisition module, a first image processing module, a historical communication judgment module, a first transmission module and a second transmission module, wherein the first image acquisition module acquires a current video communication image of the 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 historical communication judgment module is used for judging whether a historical communication video for performing 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 used for transmitting video communication according to the content of the historical communication video and the content of the first image, and when the historical communication video does not exist, and the second transmission module collects the 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 transmits and transmits the audio and the first image to the video sending module.
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 of the extracted scene image with that of a scene image in a first image, when the similarity of the two images 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 to a video server, the real-time position judgment module judges whether the geographic position of the terminal to be corrected is changed or not, and the audio and the first image are synthesized and then transmitted by the video server, and under the condition that the geographic position is changed, setting the changed geographic position as a second geographic position, acquiring a video image of the second geographic position in the reference video as a second image by the second image processing module, 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 a character image in the first image by the multiple synthesis processing module, then synthesizing the scene image with the audio, and enabling the video sending module to send and transmit.
A video communication method based on big data comprises the following steps:
step S1: pre-establishing a geographic position database, wherein 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 a user at the geographic position, and when the frequency that the video communication connection quality generated at a certain geographic position is less than or equal to the connection quality threshold value is higher, the geographic position can be stored in the geographic position database;
step S2: when a first video terminal initiates a video communication connection to a second video terminal through a video server, respectively acquiring the geographic positions of the first video terminal and the second video terminal,
if the geographic position of one video terminal exists in the first video terminal and the second video terminal and is the geographic position in the geographic position database, the video terminal is the terminal to be corrected, and the step S3 is executed;
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, acquiring the video communication connection quality of the first video terminal and the second video terminal after the first video terminal and the second video terminal establish video communication connection, and selecting a terminal to be corrected according to the video communication connection quality;
step S3: and extracting and collecting the video image and the audio of the terminal to be corrected, processing the video image, and transmitting the processed video image and audio to another video terminal by the video server.
The selecting the terminal to be modified according to the video communication connection quality in the step S2 includes:
and comparing the video communication connection quality of the first video terminal and the second video terminal with a connection quality threshold respectively, wherein when the video communication connection quality at a certain moment is less than or equal to the connection quality threshold, the moment is a moment to be corrected, and if the duration of the moment to be corrected at the corresponding geographic position of a certain video terminal is greater than or equal to the duration threshold, the video terminal is a 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, and performing image processing on the first image to acquire a scene image and a character image in the first image;
step S32: judging whether a historical communication video for carrying out video communication between the terminal to be corrected and other video terminals at the current geographic position exists in the video server,
if the historical communication video exists, extracting a scene image of the terminal to be corrected, which carries out video communication at the geographic position, from the historical communication video, carrying out similarity comparison on the extracted scene image and the scene image in the first image, and if the similarity between the extracted scene image and the scene image in the first 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 the 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 and transmitting the audio to a video server, and 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 step S32 of the video server transmitting the video communication according to the reference video and the geographic location includes:
collecting the audio and the geographic position of the terminal to be corrected and transmitting the audio and the geographic position to a video server,
if the geographic position of the terminal to be corrected is unchanged, transmitting the audio collected by the terminal to be corrected to a video server, and synthesizing the audio and the first image by the video server and transmitting the synthesized audio to another video terminal;
if the geographical position of the terminal to be corrected is changed, the changed geographical position is set as a second geographical position, a video image of the second geographical position in the reference video is collected as a second image, the second image is subjected to image processing to obtain a scene image in the second image, and the video server synthesizes the scene image in the second image with the character image in the first image, synthesizes the synthesized scene image with the audio and then transmits the synthesized image to another video terminal. In the process of transmitting a video call by a 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 an audio signal and a geographical position to the server, thereby reducing the data volume transmitted to the video server by the terminal to be corrected and reducing the pause phenomenon in the transmission process;
the method further comprises the following steps if no historical communication video exists:
when the geographical position of the terminal to be corrected is detected to be changed, if the communication connection quality at a certain moment is larger than a connection quality threshold value, a current video communication image of the terminal to be corrected is collected to be a third image, audio of the terminal to be corrected is collected and transmitted to a video server, and the video server synthesizes the audio and the third image and transmits the synthesized audio and the third image to another video terminal.
The video communication connection quality comprises network packet loss rate and network time delay. When the network packet loss rate is greater than or equal to the packet loss rate threshold and the network delay is greater than or equal to the delay threshold, indicating that the video communication connection quality is less than or equal to the connection quality threshold; otherwise, the video communication connection quality is less than or equal to the connection quality threshold.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A 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 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, the video extracting and processing module extracts and collects video images and audios of the terminals to be corrected and processes the video images, and the video sending module transmits the processed video images and audios to the other video terminal.
2. A big data based video communication system as claimed in claim 1, wherein: the video initiating and collecting module comprises a geographic position judging module, a first selecting module and a second selecting module, wherein the geographic position judging module has a geographic position of a video terminal in a first video terminal and a geographic position in a geographic position database in the first video terminal and a second video terminal, the first selecting module selects the video terminal with the geographic position as the geographic position in the geographic position database as a terminal to be corrected, and the second selecting module selects the terminal to be corrected according to the video communication connection quality of the first video terminal and the second video terminal when the geographic positions of the first video terminal and the second video terminal do not belong to the geographic position in the geographic position database; the second selection module comprises a communication connection quality comparison module, a duration acquisition module and a duration judgment module, the communication connection quality comparison module is used for comparing video communication connection quality of the first video terminal and 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 less than or equal to the connection quality threshold, the moment is a moment to be corrected, the duration acquisition module is used for acquiring duration of the video terminal at the moment to be corrected at a corresponding geographic position, and when the duration judgment module judges that the duration of the video terminal at the moment to be corrected at the corresponding geographic position is greater than or equal to the duration threshold, the video terminal is selected as the terminal to be corrected.
3. A big data based video communication system as claimed in claim 2, wherein: the video extraction processing module comprises a first image acquisition module, a first image processing module, a historical communication judgment module, a first transmission module and a second transmission module, wherein the first image acquisition module acquires a current video communication image of the 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 historical communication judgment module is used for judging whether a historical communication video for performing 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 used for transmitting video communication according to the content of the historical communication video and the content of the first image, and when the historical communication video does not exist, and the second transmission module collects the 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 transmits and transmits the audio and the first image to the video sending module.
4. A big data based video communication system as claimed in claim 3, wherein: 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 of the extracted scene image with that of a scene image in a first image, when the similarity of the two images 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 to a video server, the real-time position judgment module judges whether the geographic position of the terminal to be corrected is changed or not, and the audio and the first image are synthesized and then transmitted by the video server, and under the condition that the geographic position is changed, setting the changed geographic position as a second geographic position, acquiring a video image of the second geographic position in the reference video as a second image by the second image processing module, 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 a character image in the first image by the multiple synthesis processing module, then synthesizing the scene image with the audio, and enabling the video sending module to send and transmit.
5. A video communication method based on big data is characterized in that: the video communication method comprises the following steps:
step S1: pre-establishing a geographic position database, wherein the geographic position database is used for storing geographic positions needing image correction during video communication;
step S2: when a first video terminal initiates a video communication connection to a second video terminal through a video server, respectively acquiring the geographic positions of the first video terminal and the second video terminal,
if the geographic position of one video terminal exists in the first video terminal and the second video terminal and is the geographic position in the geographic position database, the video terminal is the terminal to be corrected, and the step S3 is executed;
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, acquiring the video communication connection quality of the first video terminal and the second video terminal after the first video terminal and the second video terminal establish video communication connection, and selecting a terminal to be corrected according to the video communication connection quality;
step S3: and extracting and collecting the video image and the audio of the terminal to be corrected, processing the video image, and transmitting the processed video image and audio to another video terminal by the video server.
6. The big-data based video communication method according to claim 5, wherein: the selecting the terminal to be modified according to the video communication connection quality in the step S2 includes:
and comparing the video communication connection quality of the first video terminal and the second video terminal with a connection quality threshold respectively, wherein when the video communication connection quality at a certain moment is less than or equal to the connection quality threshold, the moment is a moment to be corrected, and if the duration of the moment to be corrected at the corresponding geographic position of a certain video terminal is greater than or equal to the duration threshold, the video terminal is a terminal to be corrected.
7. The big-data based video communication method according to claim 6, wherein: 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, and performing image processing on the first image to acquire a scene image and a character image in the first image;
step S32: judging whether a historical communication video for carrying out video communication between the terminal to be corrected and other video terminals at the current geographic position exists in the video server,
if the historical communication video exists, extracting a scene image of the terminal to be corrected, which carries out video communication at the geographic position, from the historical communication video, carrying out similarity comparison on the extracted scene image and the scene image in the first image, and if the similarity between the extracted scene image and the scene image in the first 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 the 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 and transmitting the audio to a video server, and synthesizing the audio and the first image by the video server and transmitting the synthesized audio and the first image to another video terminal.
8. The big-data based video communication method according to claim 7, wherein: the step S32 of the video server transmitting the video communication according to the reference video and the geographic location includes:
collecting the audio and the geographic position of the terminal to be corrected and transmitting the audio and the geographic position to a video server,
if the geographic position of the terminal to be corrected is unchanged, transmitting the audio collected by the terminal to be corrected to a video server, and synthesizing the audio and the first image by the video server and transmitting the synthesized audio to another video terminal;
if the geographical position of the terminal to be corrected is changed, the changed geographical position is set as a second geographical position, a video image of the second geographical position in the reference video is collected as a second image, the second image is subjected to image processing to obtain a scene image in the second image, and the video server synthesizes the scene image in the second image with the character image in the first image, synthesizes the synthesized scene image with the audio and then transmits the synthesized image to another video terminal.
9. The big-data based video communication method according to claim 8, wherein: the method further comprises the following steps if no historical communication video exists:
when the geographical position of the terminal to be corrected is detected to be changed, if the communication connection quality at a certain moment is larger than a connection quality threshold value, a current video communication image of the terminal to be corrected is collected to be a third image, audio of the terminal to be corrected is collected and transmitted to a video server, and the video server synthesizes the audio and the third image and transmits the synthesized audio and the third image to another video terminal.
10. The big-data based video communication method according to claim 9, wherein: the video communication connection quality comprises network packet loss rate and network time delay.
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| CN202011281462.7A CN112399128B (en) | 2020-11-16 | 2020-11-16 | Video communication system and method based on big data |
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| WO2018053987A1 (en) * | 2016-09-26 | 2018-03-29 | 中兴通讯股份有限公司 | Audio and video data offloading transmission method and device for video call, and server |
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