CN113141512A - Video anchor picture detection system - Google Patents
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- CN113141512A CN113141512A CN202010049820.5A CN202010049820A CN113141512A CN 113141512 A CN113141512 A CN 113141512A CN 202010049820 A CN202010049820 A CN 202010049820A CN 113141512 A CN113141512 A CN 113141512A
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- 238000004458 analytical method Methods 0.000 claims description 17
- 238000003384 imaging method Methods 0.000 claims description 8
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- 238000005516 engineering process Methods 0.000 description 8
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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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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- 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
- H04N21/44008—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 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Image Processing (AREA)
Abstract
The invention relates to a video anchor picture detection system, comprising: the position identification device is used for sending a position over-deviation command when the distance of the second coordinate deviating from the first coordinate exceeds the number of preset pixel points; the position identification equipment is also used for sending a position centering command when the distance of the second coordinate deviating from the first coordinate does not exceed the number of the preset pixel points; the data intercepting equipment is used for intercepting a current playing picture of a video segment from the video client to be output as an instant playing image; and the information display equipment is connected with the position identification equipment and is used for overlaying and displaying the position over-bias command or the position centering command on a current playing picture of a video segment of the video client. The video anchor picture detection system is reliable in logic and stable in operation. The live detection and reminding can be carried out on the main broadcasting position for carrying out the live broadcasting or recording of the video segment, so that the quality of the live broadcasting or recording video segment is optimized.
Description
Technical Field
The invention relates to the field of anchor monitoring, in particular to a video anchor picture detection system.
Background
The simple understanding that the broadcast is in the process of reading others; the host is speaking himself. The host does much more work than the anchor and is a complex of the anchor and the host. For example, a common anchor is only required to be read according to manuscripts, and the anchor often needs to do a series of work such as planning, editing, interviewing, making, directing, hosting and the like.
The anchor is also called a broadcaster, which refers to a person who plays the broadcasting work of electronic media programs such as news reports, weather forecast, etc. of a radio station and a television station, and the term "broadcaster" refers to a broadcasting person of a television station in general. The anchor is a link in the news work of broadcast television. The strength of news is real. The broadcast content arrives at the ears of the audience through the sound of the anchor, and the sound of the anchor needs to be plain and natural to ensure the audience to hear the broadcast content really and credibly. According to the definition in "Chinese broadcasting science", the anchor is a person who mirrors sound and drives program progress by using vocal language and accessory language.
Anchor, like models, the task they are doing is to convey information to everyone. Just like a model, the model only can embody clothes and cannot over-emphasize the model, and the anchor broadcasts a perfect cavity and a round character when broadcasting news. Therefore, for a main broadcasting, the language and the image of the main broadcasting are more important.
Disclosure of Invention
The invention has at least the following two important points:
(1) in the process of carrying out live broadcast or recording of the video segment by the anchor, detecting and correspondingly reminding whether the anchor occupies the central position of the current picture of the video segment, thereby effectively replacing the manual detection mode of the anchor;
(2) and detecting each face object in the image after the customization processing based on the face imaging characteristic, and taking the imaging area of the face object with the shallowest depth of field in the image as the current attention area with the anchor object.
According to an aspect of the present invention, there is provided a video anchor picture detection system, the system comprising:
the position identification device is used for sending a position over-deviation command when the distance of the second coordinate deviating from the first coordinate exceeds the number of preset pixel points;
the position identification equipment is also used for sending a position centering command when the distance of the second coordinate deviating from the first coordinate does not exceed the number of the preset pixel points;
the data intercepting equipment is used for intercepting a current playing picture of a video segment from the video client to be output as an instant playing image;
the information display equipment is connected with the position identification equipment and is used for overlaying and displaying the position over-bias command or the position centering command on a current playing picture of a video segment of the video client;
the spatial domain sharpening device is connected with the data interception device and is used for carrying out signal sharpening processing based on a spatial domain differentiation method on the received instant playing image so as to obtain and output a corresponding spatial domain sharpened image;
the region analysis device is connected with the airspace sharpening device and used for detecting each face object in the airspace sharpened image based on the face imaging characteristics and outputting the imaging region of the face object with the shallowest depth of field in the airspace sharpened image as the current attention region;
the coordinate identification device is respectively connected with the position identification device and the area analysis device and is used for acquiring the airspace sharpened image and the current attention area, extracting the coordinates of the pixel points occupying the centroid position of the airspace sharpened image to be used as first coordinates, and extracting the coordinates of the pixel points occupying the centroid position of the current attention area to be used as second coordinates;
the first coordinate and the second coordinate are coordinate values in a horizontal coordinate system established by taking the pixel point at the lower left corner of the airspace sharpened image as an origin, and the coordinate values comprise horizontal coordinate data and vertical coordinate data.
The video anchor picture detection system is reliable in logic and stable in operation. The live detection and reminding can be carried out on the main broadcasting position for carrying out the live broadcasting or recording of the video segment, so that the quality of the live broadcasting or recording video segment is optimized.
Detailed Description
An embodiment of the video anchor picture detection system of the present invention will be described in detail below.
Video generally refers to storage formats related to various moving images, such as: digital video formats, including DVD, and MPEG-4; and analog video tapes, including VHS and Betamax. Video may be recorded and transmitted via different physical media: an electrical signal when the video is photographed or transmitted by radio, and a magnetic signal when the video is recorded on a magnetic tape; the video quality actually varies with the way of capture and the way of storage. For example, Digital Television (DTV) is a developed format, has higher picture quality than the previous standard, and is becoming a new standard for tv broadcasting in various countries. In the united kingdom, australia, new zealand, the term Video, generally informal, refers to Video recorders and Video tapes, the meaning of which can be determined from the text before and after the article.
The development of television systems developed from the creation of cathode ray tubes, but the invention of new display technologies has made the category covered by video technologies larger. Television-based standards and computer-based standards have attempted to develop video technology from two different aspects. Thanks to the improvement of computer performance, and along with the broadcasting and recording of digital television, the two fields have new intersection and convergence.
Video generally refers to various techniques for capturing, recording, processing, storing, transmitting, and reproducing a series of still images as electrical signals. When the continuous image changes more than 24 frames of pictures per second, human eyes cannot distinguish a single static picture according to the persistence of vision principle; it appears as a smooth continuous visual effect, so that the continuous picture is called a video. Video technology was originally developed for television systems, but has now evolved into a variety of different formats to facilitate consumer recording of video. Advances in networking technology have also enabled recorded segments of video to be streamed over the internet and received and played by computers. Video and movies are different technologies that take advantage of photography to capture dynamic images as a series of still photographs.
Currently, in the process of performing live broadcasting or recording of a video segment by a main broadcaster, due to the need of continuous adjustment or interaction of actions, the position of the main broadcaster in the picture of the video segment changes in each direction and is not located at the center of the ideal picture, which has a certain influence on the quality of the video segment.
In order to overcome the defects, the invention builds a video anchor picture detection system, and can effectively solve the corresponding technical problem.
The video anchor picture detection system shown according to the embodiment of the present invention includes:
the position identification device is used for sending a position over-deviation command when the distance of the second coordinate deviating from the first coordinate exceeds the number of preset pixel points;
the position identification equipment is also used for sending a position centering command when the distance of the second coordinate deviating from the first coordinate does not exceed the number of the preset pixel points;
the data intercepting equipment is used for intercepting a current playing picture of a video segment from the video client to be output as an instant playing image;
the information display equipment is connected with the position identification equipment and is used for overlaying and displaying the position over-bias command or the position centering command on a current playing picture of a video segment of the video client;
the spatial domain sharpening device is connected with the data interception device and is used for carrying out signal sharpening processing based on a spatial domain differentiation method on the received instant playing image so as to obtain and output a corresponding spatial domain sharpened image;
the region analysis device is connected with the airspace sharpening device and used for detecting each face object in the airspace sharpened image based on the face imaging characteristics and outputting the imaging region of the face object with the shallowest depth of field in the airspace sharpened image as the current attention region;
the coordinate identification device is respectively connected with the position identification device and the area analysis device and is used for acquiring the airspace sharpened image and the current attention area, extracting the coordinates of the pixel points occupying the centroid position of the airspace sharpened image to be used as first coordinates, and extracting the coordinates of the pixel points occupying the centroid position of the current attention area to be used as second coordinates;
the first coordinate and the second coordinate are coordinate values in a horizontal coordinate system established by taking the pixel point at the lower left corner of the airspace sharpened image as an origin, and the coordinate values comprise horizontal coordinate data and vertical coordinate data.
Next, a detailed configuration of the video anchor picture detection system of the present invention will be further described.
In the video anchor picture detection system, further comprising:
and the quantity extraction device is connected with the data interception device and used for receiving the instant playing image, performing noise type analysis on the instant playing image to determine the quantity of the noise types in the instant playing image and outputting the quantity as a reference quantity.
In the video anchor picture detection system, further comprising:
and the signal conversion equipment is connected with the quantity extraction equipment and used for receiving the reference quantity and sending out an excessive noise instruction when the reference quantity is greater than or equal to a preset quantity threshold value.
In the video anchor picture detection system:
the signal conversion equipment is further used for sending out a noise reduction instruction when the reference quantity is smaller than the preset quantity threshold value.
In the video anchor picture detection system, further comprising:
the power management device is connected with the signal conversion device and used for restoring power supply to the wavelet filtering device when receiving the over-noise instruction;
wherein the power management device is configured to cut off the supply of power to the wavelet filtering device when the received noise reduction instruction is received.
In the video anchor picture detection system, further comprising:
and the wavelet filtering device is used for receiving the instant playing image and executing wavelet filtering processing on the instant playing image to obtain a wavelet filtering image.
In the video anchor picture detection system, further comprising:
and the geometric correction device is connected with the wavelet filtering device and used for receiving the wavelet filtering image and executing geometric correction processing on a hue component sub-image formed by hue components of each pixel point in the wavelet filtering image so as to obtain a geometric correction image.
In the video anchor picture detection system, further comprising:
and the malformation correction device is connected with the wavelet filtering device and used for receiving the wavelet filtering image, performing malformation correction processing on the saturation component subimage formed by the saturation components of all the pixel points in the wavelet filtering image to obtain a first corrected image, and performing malformation correction processing on the brightness component subimage formed by the brightness components of all the pixel points in the wavelet filtering image to obtain a second corrected image.
In the video anchor picture detection system, further comprising:
and the merging processing device is respectively connected with the geometric correction device and the deformity correction device and is used for merging the geometric correction image, the first correction image and the second correction image to obtain corresponding correction processing images and outputting the correction processing images.
In the video anchor picture detection system, further comprising:
the range lifting equipment is respectively connected with the airspace sharpening equipment and the merging processing equipment and is used for executing dynamic range lifting processing on the corrected and processed image so as to obtain a range lifting image;
the range-improving device is further configured to replace the instant playing image with the range-improving image and send the range-improving image to the airspace sharpening device.
In addition, the term Wavelet (Wavelet) is a small waveform as the name implies. By "small" it is meant that he has attenuating properties; the term "wave" refers to its wave nature, the amplitude of which is in the form of an oscillation between positive and negative phases. Compared with Fourier transform, the wavelet transform is a local analysis of time (space) frequency, and the wavelet transform gradually refines signals (functions) in a multi-scale mode through telescopic translation operation, finally achieves time subdivision at high frequency and frequency subdivision at low frequency, can automatically adapt to the requirement of time-frequency signal analysis, can focus on any details of signals, solves the problem of difficulty of Fourier transform, and becomes a major breakthrough in a scientific method following the Fourier transform. Wavelet transforms have been known as "mathematical microscopes".
The application of wavelet analysis is closely coupled with the theoretical study of wavelet analysis. He has achieved remarkable achievements in the field of the scientific and technical information industry. Electronic information technology is an important area of six high and new technologies, and its important aspect is image and signal processing. Nowadays, signal processing has become an important part of the modern scientific and technical work, and the purpose of signal processing is: accurate analysis, diagnosis, encoding compression and quantization, fast transfer or storage, accurate reconstruction (or recovery). From a mathematical point of view, the signal and image processing can be considered as signal processing (the image can be considered as a two-dimensional signal) together, and can be attributed to the signal processing problem in many applications of many analyses in wavelet analysis. For signals whose properties are stable and invariant over time, the ideal tool for processing remains fourier analysis. However, most of the signals in practical applications are unstable, and a tool particularly suitable for unstable signals is wavelet analysis.
It is to be understood that while the present invention has been described in conjunction with the preferred embodiments thereof, it is not intended to limit the invention to those embodiments. It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (10)
1. A video anchor picture detection system, comprising:
the position identification device is used for sending a position over-deviation command when the distance of the second coordinate deviating from the first coordinate exceeds the number of preset pixel points;
the position identification equipment is also used for sending a position centering command when the distance of the second coordinate deviating from the first coordinate does not exceed the number of the preset pixel points;
the data intercepting equipment is used for intercepting a current playing picture of a video segment from the video client to be output as an instant playing image;
the information display equipment is connected with the position identification equipment and is used for overlaying and displaying the position over-bias command or the position centering command on a current playing picture of a video segment of the video client;
the spatial domain sharpening device is connected with the data interception device and is used for carrying out signal sharpening processing based on a spatial domain differentiation method on the received instant playing image so as to obtain and output a corresponding spatial domain sharpened image;
the region analysis device is connected with the airspace sharpening device and used for detecting each face object in the airspace sharpened image based on the face imaging characteristics and outputting the imaging region of the face object with the shallowest depth of field in the airspace sharpened image as the current attention region;
the coordinate identification device is respectively connected with the position identification device and the area analysis device and is used for acquiring the airspace sharpened image and the current attention area, extracting the coordinates of the pixel points occupying the centroid position of the airspace sharpened image to be used as first coordinates, and extracting the coordinates of the pixel points occupying the centroid position of the current attention area to be used as second coordinates;
the first coordinate and the second coordinate are coordinate values in a horizontal coordinate system established by taking the pixel point at the lower left corner of the airspace sharpened image as an origin, and the coordinate values comprise horizontal coordinate data and vertical coordinate data.
2. The video anchor picture detection system of claim 1, wherein the system further comprises:
and the quantity extraction device is connected with the data interception device and used for receiving the instant playing image, performing noise type analysis on the instant playing image to determine the quantity of the noise types in the instant playing image and outputting the quantity as a reference quantity.
3. The video anchor picture detection system of claim 2, wherein the system further comprises:
and the signal conversion equipment is connected with the quantity extraction equipment and used for receiving the reference quantity and sending out an excessive noise instruction when the reference quantity is greater than or equal to a preset quantity threshold value.
4. The video anchor picture detection system of claim 3, wherein:
the signal conversion equipment is further used for sending out a noise reduction instruction when the reference quantity is smaller than the preset quantity threshold value.
5. The video anchor picture detection system of claim 4, wherein the system further comprises:
the power management device is connected with the signal conversion device and used for restoring power supply to the wavelet filtering device when receiving the over-noise instruction;
wherein the power management device is configured to cut off the supply of power to the wavelet filtering device when the received noise reduction instruction is received.
6. The video anchor picture detection system of claim 5, wherein the system further comprises:
and the wavelet filtering device is used for receiving the instant playing image and executing wavelet filtering processing on the instant playing image to obtain a wavelet filtering image.
7. The video anchor picture detection system of claim 6, wherein the system further comprises:
and the geometric correction device is connected with the wavelet filtering device and used for receiving the wavelet filtering image and executing geometric correction processing on a hue component sub-image formed by hue components of each pixel point in the wavelet filtering image so as to obtain a geometric correction image.
8. The video anchor picture detection system of claim 7, wherein the system further comprises:
and the malformation correction device is connected with the wavelet filtering device and used for receiving the wavelet filtering image, performing malformation correction processing on the saturation component subimage formed by the saturation components of all the pixel points in the wavelet filtering image to obtain a first corrected image, and performing malformation correction processing on the brightness component subimage formed by the brightness components of all the pixel points in the wavelet filtering image to obtain a second corrected image.
9. The video anchor picture detection system of claim 8, wherein the system further comprises:
and the merging processing device is respectively connected with the geometric correction device and the deformity correction device and is used for merging the geometric correction image, the first correction image and the second correction image to obtain corresponding correction processing images and outputting the correction processing images.
10. The video anchor picture detection system of claim 9, wherein the system further comprises:
the range lifting equipment is respectively connected with the airspace sharpening equipment and the merging processing equipment and is used for executing dynamic range lifting processing on the corrected and processed image so as to obtain a range lifting image;
the range-improving device is further configured to replace the instant playing image with the range-improving image and send the range-improving image to the airspace sharpening device.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448085A (en) * | 2008-12-26 | 2009-06-03 | 北京中星微电子有限公司 | Videography processing method and system supporting face detection |
| WO2013008282A1 (en) * | 2011-07-08 | 2013-01-17 | Ｎｅｃディスプレイソリューションズ株式会社 | Viewing angle correction device, viewing angle correction method, and viewing angle correction program |
| CN110633609A (en) * | 2019-04-29 | 2019-12-31 | 韩明 | Positioning platform based on face object position analysis |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448085A (en) * | 2008-12-26 | 2009-06-03 | 北京中星微电子有限公司 | Videography processing method and system supporting face detection |
| WO2013008282A1 (en) * | 2011-07-08 | 2013-01-17 | Ｎｅｃディスプレイソリューションズ株式会社 | Viewing angle correction device, viewing angle correction method, and viewing angle correction program |
| CN110633609A (en) * | 2019-04-29 | 2019-12-31 | 韩明 | Positioning platform based on face object position analysis |
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