CN112261474A - Multimedia video image processing system and processing method - Google Patents
Multimedia video image processing system and processing method Download PDFInfo
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- CN112261474A CN112261474A CN202011156395.6A CN202011156395A CN112261474A CN 112261474 A CN112261474 A CN 112261474A CN 202011156395 A CN202011156395 A CN 202011156395A CN 112261474 A CN112261474 A CN 112261474A
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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, rendering scenes according to MPEG-4 scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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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, rendering scenes according to MPEG-4 scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
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Abstract
The invention discloses a multimedia video image processing system and a processing method, in particular to the technical field of video image processing, and the system comprises an image acquisition module, a video image preprocessing module, a video image processing module, a video image output module and a storage module; the output end of the image acquisition module is in communication connection with the input end of the video image preprocessing module; the output end of the video image preprocessing module is in communication connection with the input end of the video image processing module; the output end of the video image processing module is in communication connection with the input end of the video image output module; the output end of the video image processing module is in communication connection with the input end of the storage module; the invention has the advantages of high video image noise reduction speed and good effect, can process the video image with high quality by matching with the video image preprocessing module, has clearer processed video image and strong practicability, and is suitable for popularization and use.
Description
Technical Field
The present invention relates to the field of video image processing technology, and more particularly, to a multimedia video image processing system and 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) per second, human eyes cannot distinguish a single static picture according to the persistence of vision principle, and the static picture looks like a smooth continuous visual effect, so that the continuous picture is called a video.
In the wireless communication transmission, videos or pictures are often transmitted, but after the videos or the pictures are interfered in a video image output module in the transmission process, the videos or the pictures are interfered, and the videos or the pictures cannot be normally watched.
Therefore, the invention provides a multimedia video image processing system and a processing method.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multimedia video image processing system and a processing method.
In order to achieve the purpose, the invention provides the following technical scheme: a multimedia video image processing system comprises an image acquisition module, a video image preprocessing module, a video image processing module, a video image output module and a storage module;
the output end of the image acquisition module is in communication connection with the input end of the video image preprocessing module;
the output end of the video image preprocessing module is in communication connection with the input end of the video image processing module;
the output end of the video image processing module is in communication connection with the input end of the video image output module;
and the output end of the video image processing module is in communication connection with the input end of the storage module.
In a preferred embodiment, the video image preprocessing module comprises:
the video image caching unit receives the video at the first time and stores the video when the computer receives the video or the picture;
the video image detection unit receives the image of the video image caching unit and detects the attribute of the image;
and the video image scaling unit scales the image to an optimal processing size according to the data information provided by the video image detection unit.
In a preferred embodiment, the image capturing module includes a CCD camera and a video a/D converter, and the CCD camera converts an external video image captured in real time by the video a/D converter and inputs the converted external video image to the video image preprocessing module in a CCR656 format.
In a preferred embodiment, the video image output module includes a buffer unit, a frame structure unit, a flow control unit, a confirmation technique unit and a timeout processing unit.
In a preferred embodiment, the buffer unit is configured to receive the JPG image data at a time, decompose the JPG image data into a plurality of data frames and sequentially number the data frames from 1 according to an increasing sequence of serial numbers, and write the complete JPG image data into the image file at a time after the receiving end receives the complete JPG image data, so as to improve read-write data; the frame structure unit adds a frame header structure to each frame, and the frame header structure defines a serial number, a video compression format and a timestamp; the sequence number is a sequence mark sent by the data packet, detects whether data is lost in transmission, and is used for reordering at a receiving end; the video compression format mark is used for a receiving end to adopt a corresponding decoding process; the time stamp controls the time of video playback;
the flow control unit ensures that the network flow cannot be suddenly increased, and leaves room for other connections;
the confirmation technical unit is used for better controlling the flow, utilizing network resources to the maximum extent and ensuring the reliable transmission of data in a reliable data transmission protocol;
the overtime processing unit is used for ensuring the reliability of the data and resending the data when the receiving fails until the sending is successful.
In a preferred embodiment, the video image processing module comprises:
the median denoising unit is used for carrying out preliminary denoising processing on each collected frame of video image;
the homodyne video noise image extraction unit is used for subtracting the corresponding pixel value in the median video image obtained after the median denoising module processing from each pixel value of each video image and taking the absolute value to obtain a homodyne noise image;
the noise image calibration unit is used for calibrating the corresponding noise pixel points of the front difference noise defining image and the rear difference noise defining image as noise pixel points when the noise pixel points are judged to be noise;
the noise rejection unit rejects noise pixel points;
and the median method video image trimming unit is used for carrying out primary median method denoising on the noise-removed video image to obtain a final denoised video image.
A method of multimedia video image processing, the method comprising:
video image data are acquired through an image acquisition module, and external video images acquired in real time are converted by a CCD camera through a video A/D converter and then input to a video image preprocessing module in a CCR656 format;
when a computer receives a video or a picture, the video image caching unit receives the video at the first time and stores the video;
the video image detection unit receives the image of the video image cache unit and detects the attribute of the image;
the image scaling unit scales the image to an optimal processing size according to the data information provided by the video image detection unit;
the median denoising unit is used for carrying out preliminary denoising processing on each collected frame of video image;
the homodyne video noise image extraction unit is used for subtracting the corresponding pixel value in the median video image obtained after the median denoising module processing from each pixel value of each video image and taking the absolute value to obtain a homodyne noise image;
the noise image calibration unit is used for calibrating the corresponding noise pixel points of the front difference noise defining image and the rear difference noise defining image as noise pixel points when the noise pixel points are judged to be noise;
the noise rejection unit rejects noise pixel points;
and the median method video image trimming unit is used for carrying out primary median method denoising on the noise-removed video image to obtain a final denoised video image.
The invention has the technical effects and advantages that:
1. the method has the advantages of good treatment effect, high speed and simple steps, can be easily realized in a computer, does not need complex equipment, and has low use cost;
2. the video image denoising method has the advantages of high denoising speed and good effect, and can be used for processing the video image with high quality by matching with the video image preprocessing module, so that the processed video image is clearer, the practicability is strong, and the method is suitable for popularization and application.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Fig. 2 is a schematic block diagram of a video image processing module according to the present invention.
Fig. 3 is a schematic block diagram of a video image output module 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.
As shown in fig. 1 to 3, the implementation scenario specifically includes: a multimedia video image processing system comprises an image acquisition module, a video image preprocessing module, a video image processing module, a video image output module and a storage module;
the output end of the image acquisition module is in communication connection with the input end of the video image preprocessing module;
the output end of the video image preprocessing module is in communication connection with the input end of the video image processing module;
the output end of the video image processing module is in communication connection with the input end of the video image output module;
and the output end of the video image processing module is in communication connection with the input end of the storage module.
In a preferred embodiment, the video image preprocessing module comprises:
the video image caching unit receives the video at the first time and stores the video when the computer receives the video or the picture;
the video image detection unit receives the image of the video image caching unit and detects the attribute of the image;
and the video image scaling unit scales the image to an optimal processing size according to the data information provided by the video image detection unit.
In a preferred embodiment, the image capturing module includes a CCD camera and a video a/D converter, and the CCD camera converts an external video image captured in real time by the video a/D converter and inputs the converted external video image to the video image preprocessing module in a CCR656 format.
In a preferred embodiment, the video image output module includes a buffer unit, a frame structure unit, a flow control unit, a confirmation technique unit and a timeout processing unit.
In a preferred embodiment, the buffer unit is configured to receive the JPG image data at a time, decompose the JPG image data into a plurality of data frames and sequentially number the data frames from 1 according to an increasing sequence of serial numbers, and write the complete JPG image data into the image file at a time after the receiving end receives the complete JPG image data, so as to improve read-write data; the frame structure unit adds a frame header structure to each frame, and the frame header structure defines a serial number, a video compression format and a timestamp; the sequence number is a sequence mark sent by the data packet, detects whether data is lost in transmission, and is used for reordering at a receiving end; the video compression format mark is used for a receiving end to adopt a corresponding decoding process; the time stamp controls the time of video playback;
the flow control unit ensures that the network flow cannot be suddenly increased, and leaves room for other connections;
the confirmation technical unit is used for better controlling the flow, utilizing network resources to the maximum extent and ensuring the reliable transmission of data in a reliable data transmission protocol;
the overtime processing unit is used for ensuring the reliability of the data and resending the data when the receiving fails until the sending is successful.
In a preferred embodiment, the video image processing module comprises:
the median denoising unit is used for carrying out preliminary denoising processing on each collected frame of video image;
the homodyne video noise image extraction unit is used for subtracting the corresponding pixel value in the median video image obtained after the median denoising module processing from each pixel value of each video image and taking the absolute value to obtain a homodyne noise image;
the noise image calibration unit is used for calibrating the corresponding noise pixel points of the front difference noise defining image and the rear difference noise defining image as noise pixel points when the noise pixel points are judged to be noise;
the noise rejection unit rejects noise pixel points;
and the median method video image trimming unit is used for carrying out primary median method denoising on the noise-removed video image to obtain a final denoised video image.
A method of multimedia video image processing, the method comprising:
video image data are acquired through an image acquisition module, and external video images acquired in real time are converted by a CCD camera through a video A/D converter and then input to a video image preprocessing module in a CCR656 format;
when a computer receives a video or a picture, the video image caching unit receives the video at the first time and stores the video;
the video image detection unit receives the image of the video image cache unit and detects the attribute of the image;
the image scaling unit scales the image to an optimal processing size according to the data information provided by the video image detection unit;
the median denoising unit is used for carrying out preliminary denoising processing on each collected frame of video image;
the homodyne video noise image extraction unit is used for subtracting the corresponding pixel value in the median video image obtained after the median denoising module processing from each pixel value of each video image and taking the absolute value to obtain a homodyne noise image;
the noise image calibration unit is used for calibrating the corresponding noise pixel points of the front difference noise defining image and the rear difference noise defining image as noise pixel points when the noise pixel points are judged to be noise;
the noise rejection unit rejects noise pixel points;
and the median method video image trimming unit is used for carrying out primary median method denoising on the noise-removed video image to obtain a final denoised video image.
The working principle of the invention is as follows: video image data are acquired through an image acquisition module, and external video images acquired in real time are converted by a CCD camera through a video A/D converter and then input to a video image preprocessing module in a CCR656 format; when a computer receives a video or a picture, the video image caching unit receives the video at the first time and stores the video; the video image output module video image detection unit receives the image of the video image cache unit and detects the attribute of the image; the video image output module is used for zooming the image to the optimal processing size according to the data information provided by the video image detection unit; the video image output module median denoising unit is used for carrying out preliminary denoising processing on each collected frame of video image; the video image output module homodyne video noise image extraction unit is used for subtracting the corresponding pixel value in the median video image obtained after the median denoising module processing from each pixel value of each video image, and taking the absolute value to obtain a homodyne noise image; the video image output module noise image calibration unit is used for calibrating the corresponding noise pixel points of the front difference noise defining image and the rear difference noise defining image as noise pixel points when the noise pixel points are judged to be noise; the video image output module noise rejection unit rejects noise pixel points; and the video image output module median video image trimming unit is used for carrying out primary median denoising on the noise-removed video image to obtain a final denoised video image, and then the denoised video image is transmitted to the storage module through the video image output module to be stored.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. A multimedia video image processing system, characterized by: the device comprises an image acquisition module, a video image preprocessing module, a video image processing module, a video image output module and a storage module;
the output end of the image acquisition module is in communication connection with the input end of the video image preprocessing module;
the output end of the video image preprocessing module is in communication connection with the input end of the video image processing module;
the output end of the video image processing module is in communication connection with the input end of the video image output module;
and the output end of the video image processing module is in communication connection with the input end of the storage module.
2. The system of claim 1, wherein: the video image preprocessing module comprises:
the video image caching unit receives the video at the first time and stores the video when the computer receives the video or the picture;
the video image detection unit receives the image of the video image caching unit and detects the attribute of the image;
and the video image scaling unit scales the image to an optimal processing size according to the data information provided by the video image detection unit.
3. The system of claim 1, wherein: the image acquisition module comprises a CCD camera and a video A/D converter, and the CCD camera converts an external video image acquired in real time through the video A/D converter and inputs the external video image into the video image preprocessing module in a CCR656 format.
4. The system of claim 1, wherein: the video image output module comprises a buffer area unit, a frame structure unit, a flow control unit, a confirmation technical unit and a timeout processing unit.
5. The system of claim 4, wherein: the buffer unit is used for receiving the JPG image data at one time, decomposing the JPG image data into a plurality of data frames and numbering the data frames from 1 in sequence according to the sequence number increasing order, and the receiving end writes the JPG image data into the image file once after receiving the complete JPG image data, so that the read-write data is improved; the frame structure unit adds a frame header structure to each frame, and the frame header structure defines a serial number, a video compression format and a timestamp; the sequence number is a sequence mark sent by the data packet, detects whether data is lost in transmission, and is used for reordering at a receiving end; the video compression format mark is used for a receiving end to adopt a corresponding decoding process; the time stamp controls the time of video playback;
the flow control unit ensures that the network flow cannot be suddenly increased, and leaves room for other connections;
the confirmation technical unit is used for better controlling the flow, utilizing network resources to the maximum extent and ensuring the reliable transmission of data in a reliable data transmission protocol;
the overtime processing unit is used for ensuring the reliability of the data and resending the data when the receiving fails until the sending is successful.
6. The system of claim 1, wherein: the video image processing module comprises:
the median denoising unit is used for carrying out preliminary denoising processing on each collected frame of video image;
the homodyne video noise image extraction unit is used for subtracting the corresponding pixel value in the median video image obtained after the median denoising module processing from each pixel value of each video image and taking the absolute value to obtain a homodyne noise image;
the noise image calibration unit is used for calibrating the corresponding noise pixel points of the front difference noise defining image and the rear difference noise defining image as noise pixel points when the noise pixel points are judged to be noise;
the noise rejection unit rejects noise pixel points;
and the median method video image trimming unit is used for carrying out primary median method denoising on the noise-removed video image to obtain a final denoised video image.
7. A multimedia video image processing method is characterized in that: the method comprises the following steps:
video image data are acquired through an image acquisition module, and external video images acquired in real time are converted by a CCD camera through a video A/D converter and then input to a video image preprocessing module in a CCR656 format;
when a computer receives a video or a picture, the video image caching unit receives the video at the first time and stores the video;
the video image detection unit receives the image of the video image cache unit and detects the attribute of the image;
the image scaling unit scales the image to an optimal processing size according to the data information provided by the video image detection unit;
the median denoising unit is used for carrying out preliminary denoising processing on each collected frame of video image;
the homodyne video noise image extraction unit is used for subtracting the corresponding pixel value in the median video image obtained after the median denoising module processing from each pixel value of each video image and taking the absolute value to obtain a homodyne noise image;
the noise image calibration unit is used for calibrating the corresponding noise pixel points of the front difference noise defining image and the rear difference noise defining image as noise pixel points when the noise pixel points are judged to be noise;
the noise rejection unit rejects noise pixel points;
and the median method video image trimming unit is used for carrying out primary median method denoising on the noise-removed video image to obtain a final denoised video image.
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| CN114095777A (en) * | 2022-01-20 | 2022-02-25 | 广东欧谱曼迪科技有限公司 | Video processing system, method, electronic equipment and storage medium |
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