CN111212298A - Automatic image shadow replacing platform and method based on big data processing - Google Patents
Automatic image shadow replacing platform and method based on big data processing Download PDFInfo
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- 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
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- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23418—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
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- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23424—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
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- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
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- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
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Abstract
The invention relates to a data processing-based automatic image shadow replacement platform and a method, wherein the platform comprises: the shadow identification device is used for identifying whether each pixel point in the content correction image belongs to a shadow pixel point or not based on a preset shadow gray scale distribution range; the quantity analysis device is used for sending a first driving instruction when the area proportion of a shadow pattern formed by all shadow pixel points in the received image occupying the received image exceeds the limit; and the content replacing device is used for replacing the shadow pattern in the received image by the image area at the position corresponding to the shadow pattern in the image of the previous frame of the received image when the first driving instruction is received so as to obtain the corresponding content replacing image. The automatic image shadow replacing platform and the method based on data processing are stable in operation and convenient to operate. Because the shadow part of the current picture can be directly replaced by adopting the picture contents of the front frame and the back frame, the playing quality of the live broadcast picture is optimized.
Description
Technical Field
The invention relates to the field of video management, in particular to a large data processing-based automatic picture shadow replacement platform and a method.
Background
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 (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.
Video generally refers to various storage formats of moving images, such as: digital video formats including DVD, QuickTime, 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.
Disclosure of Invention
In order to solve the technical problems in the related field, the invention provides a picture shadow automatic replacement platform based on data processing, which can accurately identify whether the current live broadcast picture has a shadow or not, and adopts related image content to perform data replacement when the shadow exists, so that the playing quality of a video picture is not influenced while the shadow is eliminated.
Therefore, the invention needs to have the following key invention points:
(1) shadow identification processing based on shadow gray scale characteristics and shadow area characteristics is carried out on each frame of live broadcast picture, so that when the shadow exists, the image content at the same position of the previous frame of picture is adopted to carry out image area replacement, and the playing effect of the live broadcast video is improved;
(2) whether each pixel point in the image belongs to a shadow pixel point is identified based on a preset shadow gray scale distribution range, and when the area proportion of a shadow pattern formed by each shadow pixel point in the image to be detected occupying the image exceeds the limit, the shadow exists in the image.
According to an aspect of the present invention, there is provided a data processing-based automatic replacement platform for shadow of a picture, the platform comprising:
the data capturing device is used for acquiring a current live broadcast picture at a live broadcast terminal belonging to a current live broadcast server, wherein the current live broadcast picture corresponds to the current moment and also comprises a previous frame of live broadcast picture and a next frame of live broadcast picture;
the signal output equipment is connected with the current live broadcast server and used for replacing the corresponding current live broadcast picture with the content replacement image and outputting the content replacement image to the current live broadcast server through a network when the content replacement image is received;
the content correction device is connected with the data capture device and used for executing guide filtering processing on the received current live broadcast picture so as to obtain a corresponding content correction image;
the shadow identification device is connected with the content correction device and used for receiving the content correction image and identifying whether each pixel point in the content correction image belongs to a shadow pixel point or not based on a preset shadow gray distribution range;
the quantity analysis device is connected with the shadow identification device and is used for sending a first driving instruction when the area proportion of the shadow pattern formed by each shadow pixel point in the content correction image occupying the content correction image exceeds the limit, and otherwise, sending a second driving instruction;
a content replacing device respectively connected with the signal output device, the data capturing device and the quantity analyzing device and used for replacing the shadow pattern in the content correction image by the image area at the position corresponding to the shadow pattern in the content correction image in the previous frame of the content correction image when the first driving instruction is received so as to obtain the corresponding content replacing image;
wherein the content replacement device is further configured not to perform the replacement operation when receiving the second driving instruction;
wherein the shadow recognition device, the quantity analysis device and the content replacement device are all encapsulated within a housing of the live terminal.
According to another aspect of the present invention, there is also provided a data processing-based picture shadow automatic replacement method, which includes using the data processing-based picture shadow automatic replacement platform as described above to decide whether to use the same-position content of the previous frame picture for image area replacement based on the detection result of the picture shadow.
The automatic image shadow replacing platform and the method based on data processing are stable in operation and convenient to operate. Because the shadow part of the current picture can be directly replaced by adopting the picture contents of the front frame and the back frame, the playing quality of the live broadcast picture is optimized.
Drawings
Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a block diagram illustrating a structure of a data processing-based automatic replacement platform for shadow of a picture according to a first example of an embodiment of the present invention.
Fig. 2 is a block diagram illustrating a structure of a data processing-based automatic replacement platform for shadow of a picture according to a second example of the embodiment of the present invention.
Detailed Description
Embodiments of the data processing-based automatic replacement platform and method for shadow of a picture according to the present invention will be described in detail with reference to the accompanying drawings.
Data processing refers to the technical process of analyzing and processing data (both numerical and non-numerical). Including the processing and processing of various raw data analysis, sorting, calculation, editing, etc. Has wider meaning than data analysis.
With the increasing popularity of computers, the proportion of numerical calculation in the field of computer applications is small, and information management through computer data processing has become a major application. Such as mapping management, warehouse management, financial management, transportation management, technical information management, office automation, etc. In the aspect of geographic data, a large amount of natural environment data (various resource data such as land, water, climate, biology and the like) and a large amount of social and economic data (population, traffic, industry and agriculture and the like) are provided, and comprehensive data processing is often required. Therefore, a geographic database needs to be established, geographic data is systematically arranged and stored, redundancy is reduced, data processing software is developed, and database technology is fully utilized for data management and processing.
In the prior art, when a live broadcast terminal records a live broadcast video, a shadow may appear at a certain position of a live broadcast picture due to a body part of a main broadcast touching a camera device or due to a hardware fault of the camera device, and the shadow of a considerable area seriously affects the quality of the live broadcast video data and needs to optimize the image quality.
In order to overcome the defects, the invention builds a data processing-based automatic image shadow replacement platform and a method, and can effectively solve the corresponding technical problems.
< first embodiment >
Fig. 1 is a block diagram illustrating a structure of a data processing-based automatic replacement platform for shadow of a picture according to a first embodiment of the present invention, the platform including:
the data capturing device is used for acquiring a current live broadcast picture at a live broadcast terminal belonging to a current live broadcast server, wherein the current live broadcast picture corresponds to the current moment and also comprises a previous frame of live broadcast picture and a next frame of live broadcast picture;
the signal output equipment is connected with the current live broadcast server and used for replacing the corresponding current live broadcast picture with the content replacement image and outputting the content replacement image to the current live broadcast server through a network when the content replacement image is received;
the content correction device is connected with the data capture device and used for executing guide filtering processing on the received current live broadcast picture so as to obtain a corresponding content correction image;
the shadow identification device is connected with the content correction device and used for receiving the content correction image and identifying whether each pixel point in the content correction image belongs to a shadow pixel point or not based on a preset shadow gray distribution range;
the quantity analysis device is connected with the shadow identification device and is used for sending a first driving instruction when the area proportion of the shadow pattern formed by each shadow pixel point in the content correction image occupying the content correction image exceeds the limit, and otherwise, sending a second driving instruction;
a content replacing device respectively connected with the signal output device, the data capturing device and the quantity analyzing device and used for replacing the shadow pattern in the content correction image by the image area at the position corresponding to the shadow pattern in the content correction image in the previous frame of the content correction image when the first driving instruction is received so as to obtain the corresponding content replacing image;
wherein the content replacement device is further configured not to perform the replacement operation when receiving the second driving instruction;
wherein the shadow recognition device, the quantity analysis device and the content replacement device are all encapsulated within a housing of the live terminal.
< second embodiment >
Fig. 2 is a block diagram illustrating a structure of a data processing-based picture shading automatic replacement platform according to a second embodiment of the present invention, which may further include, in addition to the components in the first embodiment:
ADSL communication equipment which is respectively connected with the quantity analysis equipment and the content replacement equipment and is used for receiving and reporting various fault codes of the quantity analysis equipment or the content replacement equipment.
Next, the following will proceed to further explanation of the specific structure of the automatic replacement platform for shadow of picture based on data processing according to the present invention.
In the data processing-based picture shadow automatic replacement platform:
the quantity analysis equipment is internally provided with a first fault self-checking unit used for carrying out self-checking on internal faults of the quantity analysis equipment and sending fault codes.
In the data processing-based picture shadow automatic replacement platform:
and a second fault self-checking unit is arranged in the content replacing equipment and is used for carrying out self-checking on the internal fault of the content replacing equipment and sending a fault code.
In the data processing-based picture shadow automatic replacement platform:
the first fault self-checking unit and the second fault self-checking unit are respectively realized by editable logic devices with different models.
In the data processing-based picture shadow automatic replacement platform:
the quantity analysis equipment is also internally provided with a first electric quantity measuring unit used for measuring the current residual electric quantity of the quantity analysis equipment.
In the data processing-based picture shadow automatic replacement platform:
the content replacement device is also internally provided with a second electric quantity measuring unit used for measuring the current residual electric quantity of the content replacement device.
In the data processing-based picture shadow automatic replacement platform:
the first electric quantity measuring unit and the second electric quantity measuring unit share the same quartz oscillation device.
Meanwhile, in order to overcome the defects, the invention also provides a data processing-based automatic picture shadow replacing method, which comprises the step of using the data processing-based automatic picture shadow replacing platform to determine whether to adopt the content at the same position of the previous frame of picture for replacing the image area based on the detection result of the picture shadow.
In addition, ADSL is a technology for providing broadband data transmission service to homes and offices through the existing general telephone line, and it can provide very high data transmission bandwidth wide enough for telecommunication industry to be breathless. The ADSL solution does not require modification of the signal transmission line, it only requires a pair of special MODEMs, one of which is connected to the user's computer and the other of which is installed in the telecommunications center of the telecommunications company, the connections of which are still ordinary telephone lines. The speed of data transmission is indeed much improved after the ADSL scheme is adopted. The transmission speed of the ADSL scheme is about 50 times that of the ISDN scheme and 20 times that of the satellite scheme, and the ADSL does not need to change the line, so that the ADSL is a feasible network acceleration scheme.
ADSL was designed for video on demand at the beginning of its development. With the rapid development of the internet, ADSL has changed over as a technology for accessing the internet at a high speed, so that users feel new and it becomes possible to provide multimedia services on the existing internet. Companies providing telecommunication services are worried that they can configure ASDL equipment according to the user amount very flexibly without investing astronomical digital funds for line replacement, and provide more online services for users.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A data processing-based automatic replacement platform for shadow of a picture, the platform comprising:
the data capturing device is used for acquiring a current live broadcast picture at a live broadcast terminal belonging to a current live broadcast server, wherein the current live broadcast picture corresponds to the current moment and also comprises a previous frame of live broadcast picture and a next frame of live broadcast picture;
the signal output equipment is connected with the current live broadcast server and used for replacing the corresponding current live broadcast picture with the content replacement image and outputting the content replacement image to the current live broadcast server through a network when the content replacement image is received;
the content correction device is connected with the data capture device and used for executing guide filtering processing on the received current live broadcast picture so as to obtain a corresponding content correction image;
the shadow identification device is connected with the content correction device and used for receiving the content correction image and identifying whether each pixel point in the content correction image belongs to a shadow pixel point or not based on a preset shadow gray distribution range;
the quantity analysis device is connected with the shadow identification device and is used for sending a first driving instruction when the area proportion of the shadow pattern formed by each shadow pixel point in the content correction image occupying the content correction image exceeds the limit, and otherwise, sending a second driving instruction;
a content replacing device respectively connected with the signal output device, the data capturing device and the quantity analyzing device and used for replacing the shadow pattern in the content correction image by the image area at the position corresponding to the shadow pattern in the content correction image in the previous frame of the content correction image when the first driving instruction is received so as to obtain the corresponding content replacing image;
wherein the content replacement device is further configured not to perform the replacement operation when receiving the second driving instruction;
wherein the shadow recognition device, the quantity analysis device and the content replacement device are all encapsulated within a housing of the live terminal.
2. The data processing-based automatic picture shading replacement platform as claimed in claim 1, further comprising:
ADSL communication equipment which is respectively connected with the quantity analysis equipment and the content replacement equipment and is used for receiving and reporting various fault codes of the quantity analysis equipment or the content replacement equipment.
3. The data processing-based picture shading automatic replacement platform according to claim 2, wherein:
the quantity analysis equipment is internally provided with a first fault self-checking unit used for carrying out self-checking on internal faults of the quantity analysis equipment and sending fault codes.
4. The data processing-based automatic picture shading replacement platform as claimed in claim 3, wherein:
and a second fault self-checking unit is arranged in the content replacing equipment and is used for carrying out self-checking on the internal fault of the content replacing equipment and sending a fault code.
5. The data processing-based picture shading automatic replacement platform according to claim 4, wherein:
the first fault self-checking unit and the second fault self-checking unit are respectively realized by editable logic devices with different models.
6. The data processing-based picture shading automatic replacement platform according to claim 5, wherein:
the quantity analysis equipment is also internally provided with a first electric quantity measuring unit used for measuring the current residual electric quantity of the quantity analysis equipment.
7. The data processing-based picture shading automatic replacement platform of claim 6, wherein:
the content replacement device is also internally provided with a second electric quantity measuring unit used for measuring the current residual electric quantity of the content replacement device.
8. The data processing-based picture shading automatic replacement platform according to claim 7, wherein:
the first electric quantity measuring unit and the second electric quantity measuring unit share the same quartz oscillation device.
9. A method for automatically replacing picture shadows based on data processing, which comprises using the platform according to any one of claims 1 to 8 to decide whether to replace an image area with the same position content of the previous frame of picture based on the detection result of the picture shadows.
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| US20030112237A1 (en) * | 2001-12-13 | 2003-06-19 | Marco Corbetta | Method, computer program product and system for rendering soft shadows in a frame representing a 3D-scene |
| US20060280249A1 (en) * | 2005-06-13 | 2006-12-14 | Eunice Poon | Method and system for estimating motion and compensating for perceived motion blur in digital video |
| CN101236606A (en) * | 2008-03-07 | 2008-08-06 | 北京中星微电子有限公司 | Shadow cancelling method and system in vision frequency monitoring |
| CN104380708A (en) * | 2012-06-25 | 2015-02-25 | 意法爱立信有限公司 | Video stabilisation with deblurring |
| CN105472204A (en) * | 2014-09-05 | 2016-04-06 | 南京理工大学 | Inter-frame noise reduction method based on motion detection |
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2020
- 2020-01-15 CN CN202010039366.5A patent/CN111212298B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030112237A1 (en) * | 2001-12-13 | 2003-06-19 | Marco Corbetta | Method, computer program product and system for rendering soft shadows in a frame representing a 3D-scene |
| US20060280249A1 (en) * | 2005-06-13 | 2006-12-14 | Eunice Poon | Method and system for estimating motion and compensating for perceived motion blur in digital video |
| CN101236606A (en) * | 2008-03-07 | 2008-08-06 | 北京中星微电子有限公司 | Shadow cancelling method and system in vision frequency monitoring |
| CN104380708A (en) * | 2012-06-25 | 2015-02-25 | 意法爱立信有限公司 | Video stabilisation with deblurring |
| CN105472204A (en) * | 2014-09-05 | 2016-04-06 | 南京理工大学 | Inter-frame noise reduction method based on motion detection |
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