CN107371060B - Video image synthesis system based on television output and application method - Google Patents
Video image synthesis system based on television output and application method Download PDFInfo
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- CN107371060B CN107371060B CN201710737444.7A CN201710737444A CN107371060B CN 107371060 B CN107371060 B CN 107371060B CN 201710737444 A CN201710737444 A CN 201710737444A CN 107371060 B CN107371060 B CN 107371060B
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 24
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005236 sound signal Effects 0.000 claims description 35
- 230000009467 reduction Effects 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 6
- 230000002194 synthesizing effect Effects 0.000 claims description 6
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a video image synthesis system and an application method based on television output, wherein the video image synthesis system comprises a television video image subsystem, a service generation image subsystem, a video image synthesis subsystem and a video output subsystem; the video image synthesis subsystem synthesizes the television video images and the service generated images and outputs the synthesized television video images and the service generated images to the video output subsystem, and the video output subsystem sends the synthesized video images to the television. The invention integrates various paths of resources by utilizing the voice link, and practices the integrated service and concurrent service based on television output. By organically combining the television video image and the service generation image, people can enjoy another good, happy and playful service while watching television, so that the vast television client group occupying 99.3% of television popularity can be brought to the happiness of the people from the television screen in advance, and the life quality and happiness index of the people are improved.
Description
Technical Field
The invention relates to the technical field of intelligent televisions, in particular to a video image synthesis system based on television output.
Background
Humans are always striving for simplification of services endlessly. Although the current technology level can make the television screen bigger and the definition higher and higher, the technology level still cannot meet the most naive requirements of the common people: for example, when you are watching television, mind is often suddenly raised about some ideas or needs, such as how today's weather is, which promotions are available in nearby supermarkets, take-away needs, online shopping needs, travel services needs, etc. Although the television screen is large, no one inch place can make room for your needs; although the mobile phone is very small, you have to click a mobile phone interface which is tens of times smaller than the screen of the television while watching television to view weather forecast, take-away and travel services; despite the hot weather, you have not been able to walk into the crowded population of the supermarket, exploring for discounted promotional messages.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a video image synthesis system and an application method based on television output, which achieve the purpose of synthesizing and enjoying other services on a television interface to generate images while watching television.
The technical aim of the invention is realized by the following technical scheme:
a video image composition system based on television output, characterized in that: the system comprises a television video image subsystem, a service generation image subsystem, a video image synthesis subsystem and a video output subsystem; the video image synthesis subsystem synthesizes the television video images and the service generated images and outputs the synthesized television video images and the service generated images to the video output subsystem, and the video output subsystem sends the synthesized video images to the television.
Preferably, the television video image generating subsystem comprises an HDMI audio/video signal unit and an HDMI audio/video separator, wherein the HDMI audio/video signal unit and the HDMI audio/video separator are used for being connected with a television set top box, the HDMI audio/video separator receives HDMI audio/video signals, separates HDMI video signals, and outputs the HDMI video signals to the video image synthesizing subsystem.
Preferably, the service generation image subsystem comprises an echo cancellation and noise reduction and enhancement unit, a voice recognition and semantic understanding unit and a service image generation unit; the voice recognition and semantic understanding unit receives the echo cancellation and noise reduction and enhances the voice signals after the echo cancellation and noise reduction, performs voice recognition and semantic understanding, and then sends the result of the semantic understanding to the service image generating unit; the service image generation unit comprises a cloud service image generation unit and a local service image generation unit; the cloud service image generation unit comprises a cloud service unit and a cloud service image unit, and the local service image generation unit comprises a local service unit and a local service image unit; the service image generation unit sends the cloud service image or the local service image to the video image synthesis subsystem.
Preferably, the echo cancellation and noise reduction unit comprises an HDMI audio-video separator connected with a television set top box, an audio receiver connected with an audio output end of the television set, an audio selector, an echo cancellation unit, an audio output unit, a voice enhancement and noise reduction unit, a play module, an audio acquisition unit and an audio output unit; the audio selector receives the audio signal of the HDMI audio-video separator or the audio signal of the audio receiver, and respectively sends the audio signal to the echo cancellation unit and the audio output unit, and the playing module restores the audio signal of the television after receiving the audio signal of the audio output unit; the echo cancellation unit is used for respectively receiving the audio signals of the television and the audio signals of the audio collector, filtering the audio signals of the television to reserve audio collection signals, transmitting the reserved audio collection signals to the audio output two units after voice enhancement and noise reduction, and transmitting the audio collection signals which are used for filtering the audio signals of the television and are subjected to voice enhancement and noise reduction to the voice recognition and semantic understanding unit.
Preferably, the position of the service generation image in the television screen can be set in a self-defining way, including that the image can be output in the lower right corner and the upper left corner of the television screen, and the size of the image area can be set in a self-defining way.
Preferably, the cloud service image generating unit receives a semantic instruction of the voice recognition and semantic understanding unit, and generates and outputs a corresponding cloud service image according to the semantic instruction; the cloud service content comprises nearby supermarket sales promotion information, online mall service, weather service, restaurant new product service, medicine purchase service, famous doctor seeking service, travel service, takeout service and other services.
Preferably, the cloud service image includes a cloud system directly calling a third party open API data interface and a service self-developed by the cloud system to generate the cloud service image.
Preferably, the cloud system self-developed service includes integrating third party data, integrating third party resources, generating demand data according to user preferences, and further generating a cloud service image.
An application method of a video image synthesis system based on television output is characterized by comprising the following steps: the method comprises the following steps:
step one, turning on a television, and waiting for the television to enter a stable video interface;
step two, a user sends out a voice instruction in a room voice far-field range;
step three, the voice collector sends the voice command to the voice recognition and semantic understanding unit;
step four, the voice recognition and semantic understanding unit carries out semantic understanding and sends semantic data after semantic understanding to the service image generating unit;
generating a cloud service image or a local service image according to the semantically understood content by the service image generating unit, and sending the image back to the video image synthesizing subsystem;
step six, the video image synthesis subsystem synthesizes the television video image and the service generation image, and sends the synthesized image to the video output subsystem;
and step seven, the video output subsystem sends the synthesized video image to the television.
The step one of turning on the television also comprises starting the television to turn on through a voice command;
the room voice far-field range in the second step is a range of about 5 meters around the voice collector in the room; the in-room voice collector is installed in each room electric lamp junction box or in each room sound box.
Advantageous effects of the invention
1. The invention integrates various resources by utilizing the voice link, and practices a novel service form which is more close to the requirements of common people, namely an integrated service and a concurrent service based on television output. By organically combining the television video image and the service generation image, people can enjoy another good, happy and playful service while watching television: people can give out voice demand instructions to the voice system according to personal preference as well as with great convenience, and the voice system instantly converts the voice demand instructions into service images and displays the service images in a specific area of a television screen.
2. The invention makes users who are not equipped with smart phones, are not equipped with computers and cannot operate computers feel regrettable for the users who can not enjoy the services, and can enjoy the functions of the smart phones and the functions of the PC terminals on the television screen, so that the vast television client groups occupying 99.3% of television popularity can feel happy with the intelligent users from the television screen, and the quality of life and happiness index of the users are improved.
3. The invention fully utilizes the advantages of the large screen of the television, the large screen of the television is not exclusive to television programs, and the large screen of the television is also an output terminal of various intelligent services; the large television screen no longer serves only online television programs, but also serves thousands of households offline.
Drawings
FIG. 1 is a system frame diagram of the present invention;
FIG. 2 is a schematic diagram of a television video image subsystem of the present invention;
FIG. 3 is a schematic diagram of a service creation image subsystem of the present invention;
FIG. 4 is a block diagram of a service image generating unit of the present invention;
FIG. 5 is a schematic diagram of the echo cancellation and noise reduction and enhancement unit structure of the present invention;
FIG. 6 is a schematic diagram of cloud service content according to the present invention;
FIG. 7 is a schematic view of a cloud service image configuration according to the present invention;
fig. 8 is a schematic diagram of service content self-developed by the cloud system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
1. Design principle of the invention
The invention aims to achieve the aim that people send out voice instructions while watching television, and the system changes the voice instructions into service result images to be displayed on a television screen. Here, three problems are to be solved:
the first problem to be solved is: where the user utters the voice, whether the specified location utters the voice or the specified location utters the voice, and who the voice receiving object is. Whether to speak into the air in the room or into a microphone.
The user of the system can send out voice instructions at any corner of the far-field range of voice in the room without holding the microphone to send out voice instructions. The principle is that the system is provided with the voice collector in the lamp switch box of each room, the range of the voice collector about 5 meters is called a voice far field range, and the accuracy rate of voice reading reaches more than 95 in the range. Such as bedrooms, study rooms, restaurants, toilets, living rooms and the like of a house, the range of the house is generally not more than 5 meters, and the electric lamp is generally arranged in each room, so that voice instructions sent by a user in the room at any time and any place can be received.
The second problem to be solved is: when the television program is played, how the television sound and the voice of the person conflict. The solution and principle are shown in fig. 5, firstly, the audio signal of the television is taken, then the audio signal of the television is divided into two paths, one path is used for the restoration of the audio signal of the television, and the other path is used as a reference signal, and the reference signal is used for removing the audio signal of the television in the mixed audio signal by using the reference signal when the audio signal of the human voice and the audio signal of the television are mixed in the echo cancellation unit, so that the audio signal of the human voice is reserved. Meanwhile, the voice signal of the person may be subjected to various interferences due to the influence of the surrounding environment such as an air conditioner and the like, the voice signal of the person is enhanced by voice enhancement and noise reduction means, and finally, the optimized and enhanced voice signal is sent to a voice recognition and semantic understanding unit.
Third problem to be solved: how to change the voice command into a video image. The video image opens up a browser area within the settable range of the television screen, the synthesized video image is the television video and the browser, and the system displays the service generated image or the service result image in the browser area on the television screen.
2. Based on the principle of the invention, a video image synthesis system based on television output, as shown in fig. 1, comprises a television video image subsystem, a service generation image subsystem, a video image synthesis subsystem and a video output subsystem; the video image synthesis subsystem synthesizes the television video images and the service generated images and outputs the synthesized television video images and the service generated images to the video output subsystem, and the video output subsystem sends the synthesized video images to the television.
As shown in fig. 2, the television video image generating subsystem includes an HDMI audio/video signal unit for connecting to a television set-top box, and an HDMI audio/video separator, where the HDMI audio/video separator receives the HDMI audio/video signal, separates the HDMI video signal, and outputs the HDMI video signal to the video image synthesizing subsystem.
As shown in fig. 3 and 4, the service generation image subsystem comprises an echo cancellation and noise reduction and enhancement unit, a voice recognition and semantic understanding unit and a service image generation unit; the voice recognition and semantic understanding unit receives the echo cancellation and noise reduction and enhances the voice signals after the echo cancellation and noise reduction, performs voice recognition and semantic understanding, and then sends the result of the semantic understanding to the service image generating unit; the service image generation unit comprises a cloud service image generation unit and a local service image generation unit; the cloud service image generation unit comprises a cloud service unit and a cloud service image unit, and the local service image generation unit comprises a local service unit and a local service image unit; the service image generation unit sends the cloud service image or the local service image to the video image synthesis subsystem.
As shown in fig. 5, the echo cancellation and noise reduction unit includes an HDMI audio-video separator connected to a television set-top box, an audio receiver connected to an audio output terminal of the television set, an audio selector, an echo cancellation unit, an audio output unit, a voice enhancement and noise reduction unit, a playing module, an audio acquisition unit, and an audio output unit; the audio selector receives the audio signal of the HDMI audio-video separator or the audio signal of the audio receiver, and respectively sends the audio signal to the echo cancellation unit and the audio output unit, and the playing module restores the audio signal of the television after receiving the audio signal of the audio output unit; the echo cancellation unit is used for respectively receiving the audio signals of the television and the audio signals of the audio collector, filtering the audio signals of the television to reserve audio collection signals, transmitting the reserved audio collection signals to the audio output two units after voice enhancement and noise reduction, and transmitting the audio collection signals which are used for filtering the audio signals of the television and are subjected to voice enhancement and noise reduction to the voice recognition and semantic understanding unit.
The position of the service generation image in the television screen can be set in a self-defining way, the image can be output in the lower right corner and the upper left corner of the television screen, and the size of the image area can be set in a self-defining way.
As shown in fig. 6, the cloud service image generating unit receives a semantic instruction of the voice recognition and semantic understanding unit, and generates and outputs a corresponding cloud service image according to the semantic instruction; the cloud service content comprises nearby supermarket sales promotion information, online mall service, weather service, restaurant new product service, medicine purchase service, famous doctor seeking service, travel service, takeout service and other services.
As shown in fig. 7, the cloud service image includes a cloud system directly calling a third party open API data interface and a service self-developed by the cloud system to generate a cloud service image.
As shown in fig. 8, the self-developed service of the cloud system includes integrating third party data, integrating third party resources, generating demand data according to user preferences, and further generating a cloud service image.
An application method of a video image synthesis system based on television output comprises the following steps:
step one, turning on a television, and waiting for the television to enter a stable video interface;
step two, a user sends out a voice instruction in a room voice far-field range;
step three, the voice collector sends the voice command to the voice recognition and semantic understanding unit;
step four, the voice recognition and semantic understanding unit carries out semantic understanding and sends semantic data after semantic understanding to the service image generating unit;
generating a cloud service image or a local service image according to the semantically understood content by the service image generating unit, and sending the image back to the video image synthesizing subsystem;
step six, the video image synthesis subsystem synthesizes the television video image and the service generation image, and sends the synthesized image to the video output subsystem;
and step seven, the video output subsystem sends the synthesized video image to the television.
The step one of turning on the television also comprises starting the television to turn on through a voice command;
the room voice far-field range in the second step is a range of about 5 meters around the voice collector in the room; the in-room voice collector is installed in each room electric lamp junction box or in each room sound box.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (7)
1. A video image composition system based on television output, characterized in that: the system comprises a television video image subsystem, a service generation image subsystem, a video image synthesis subsystem and a video output subsystem; the video image synthesis subsystem synthesizes the television video image and the service generated image and outputs the synthesized video image and the service generated image to the video output subsystem, and the video output subsystem sends the synthesized video image to the television;
the television video image subsystem comprises an HDMI audio and video signal unit and an HDMI audio and video separator, wherein the HDMI audio and video signal unit and the HDMI audio and video separator are used for being connected with the television set top box, the HDMI audio and video separator receives HDMI audio and video signals, separates HDMI video signals, and outputs the HDMI video signals to the video image synthesis subsystem;
the service generation image subsystem comprises an echo cancellation and noise reduction and enhancement unit, a voice recognition and semantic understanding unit and a service image generation unit; the voice recognition and semantic understanding unit receives the echo cancellation and noise reduction and enhances the voice signals after the echo cancellation and noise reduction, performs voice recognition and semantic understanding, and then sends the result of the semantic understanding to the service image generating unit; the service image generation unit comprises a cloud service image generation unit and a local service image generation unit; the cloud service image generation unit comprises a cloud service unit and a cloud service image unit, and the local service image generation unit comprises a local service unit and a local service image unit; the service image generation unit sends the cloud service image or the local service image to the video image synthesis subsystem;
the echo cancellation and noise reduction and enhancement unit comprises an HDMI audio-video separator, an audio receiver, an audio selector, an echo cancellation unit, an audio output unit, a voice enhancement and noise reduction unit, a play module, an audio acquisition unit and an audio output unit, wherein the HDMI audio-video separator is used for being connected with a television set top box; the audio selector receives the audio signal of the HDMI audio-video separator or the audio signal of the audio receiver, and respectively sends the audio signal to the echo cancellation unit and the audio output unit, and the playing module restores the audio signal of the television after receiving the audio signal of the audio output unit; the echo cancellation unit is used for respectively receiving the audio signals of the television and the audio signals of the audio collector, filtering the audio signals of the television to reserve audio collection signals, transmitting the reserved audio collection signals to the audio output two units after voice enhancement and noise reduction, and transmitting the audio collection signals which are used for filtering the audio signals of the television and are subjected to voice enhancement and noise reduction to the voice recognition and semantic understanding unit.
2. A video image composition system based on television output as claimed in claim 1, wherein: the position of the service generation image in the television screen can be set in a self-defining way, the image can be output in the lower right corner and the upper left corner of the television screen, and the size of the image area can be set in a self-defining way.
3. A video image composition system based on television output as claimed in claim 1, wherein: the cloud service image generation unit receives a semantic instruction of the voice recognition and semantic understanding unit, and generates and outputs a corresponding cloud service image according to the semantic instruction; the cloud service content comprises nearby supermarket sales promotion information, online mall service, weather service, restaurant new product service, medicine purchase service, famous doctor seeking service, travel service, takeout service and other services.
4. A video image composition system based on television output as claimed in claim 1, wherein: the cloud service image comprises a cloud system directly calling a third-party open API data interface and a service self-developed by the cloud system to generate the cloud service image.
5. The television output based video image composition system of claim 4, wherein: the cloud system self-developed service comprises the steps of integrating third party data, integrating third party resources, generating demand data according to user preferences, and further generating a cloud service image.
6. A method of using a video image composition system based on television output according to any of claims 1-5, characterized in that: the method comprises the following steps:
step one, turning on a television, and waiting for the television to enter a stable video interface;
step two, a user sends out a voice instruction in a room voice far-field range;
step three, the voice collector sends the voice command to the voice recognition and semantic understanding unit;
step four, the voice recognition and semantic understanding unit carries out semantic understanding and sends semantic data after semantic understanding to the service image generating unit;
generating a cloud service image or a local service image according to the semantically understood content by the service image generating unit, and sending the image back to the video image synthesizing subsystem;
step six, the video image synthesis subsystem synthesizes the television video image and the service generation image, and sends the synthesized image to the video output subsystem;
and step seven, the video output subsystem sends the synthesized video image to the television.
7. The method for applying a video image composition system based on television output according to claim 6, wherein:
the step one of turning on the television also comprises starting the television to turn on through a voice command;
the room voice far-field range in the second step is a range of about 5 meters around the voice collector in the room; the in-room voice collector is installed in each room electric lamp junction box or in each room sound box.
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| CN108289267A (en) * | 2018-04-14 | 2018-07-17 | 北京智网时代科技有限公司 | Eliminate echo cancelling device, method, speaker, the voice frequency sender of TV interference |
| US10871935B2 (en) | 2018-09-18 | 2020-12-22 | Roku, Inc. | Audio cancellation and content recognition of audio received over HDMI/ARC |
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