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Interframe macro block type selecting method used in real-time AVS-based video frame rate transcoding

A video frame rate, macroblock technology, applied in digital video signal modification, electrical components, image communication, etc., can solve problems such as increasing the burden on merchants, and achieve the effect of ensuring image quality

Active Publication Date: 2014-02-19
山东电子职业技术学院
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

This requires video content providers to configure a large number of resources to save different video sources, thus increasing the burden on merchants

Method used

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  • Interframe macro block type selecting method used in real-time AVS-based video frame rate transcoding
  • Interframe macro block type selecting method used in real-time AVS-based video frame rate transcoding
  • Interframe macro block type selecting method used in real-time AVS-based video frame rate transcoding

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Embodiment

[0042] Such as figure 1 , in wireless video on demand, the encoded video streams are stored on the video server, and these video streams are compressed under the premise of high bit rate, that is, the image size is large, the frame rate is high, and the image quality is good. When a user requests a certain video segment, the corresponding required parameters will be sent to the video server at the same time, these parameters include: image size, frame rate, bit rate, etc. The video server starts the transcoding module according to the requirements of these parameters, transcodes the encoded video stream into the required format, and sends the transcoded video stream to the user terminal in real time.

[0043] A real-time method for selecting an inter-frame macroblock type in AVS-based video frame rate transcoding is applied to the transcoding system, including the following steps 1)-6):

[0044] 1) Video decoding: use the AVS decoder to fully decode the input video stream to ...

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Abstract

The invention discloses an interframe macro block type selecting method used in real-time AVS-based video frame rate transcoding and belongs to the field of multimedia signal processing. The method is mainly used for achieving fast macro block type selection in frame rate transcoding. The method is characterized in that macro block type selection is achieved by means of a model established with four parameters, and macro block type selection comprises the steps of parameter calculation, threshold selection and determination of the macro block type according to a threshold. According to the interframe macro block type selecting method used in real-time AVS-based video frame rate transcoding, transcoding speed can be increased remarkably, the superior macro block type in recoding is fully guaranteed, and then a quite low bit rate is obtained. The interframe macro block type selecting method used in real-time AVS-based video frame rate transcoding is suitable for fields such as wireless video monitoring, Internet video monitoring and wireless video on demand.

Description

technical field [0001] The invention relates to a real-time method for selecting an inter-frame macroblock type in AVS-based video frame rate transcoding, and belongs to the technical field of multimedia signal processing. Background technique [0002] In video-on-demand applications, in order to provide rich video resources to a wider range of users, video content providers need to save video resources in various formats, such as high-definition quality, standard definition quality, general quality, etc., so as to To meet the needs of various users, such as personal computer users, mobile phone users and so on. This requires video content providers to configure a large number of resources to store different video sources, thereby increasing the burden on merchants. Video transcoding technology can solve such problems very well. With the support of this technology, merchants only need to provide a single high-definition quality video source. According to different user te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/40H04N19/176H04N19/124H04N19/147H04N19/103H04N19/44
Inventor 徐新艳刘兆广李冬芸刘新峰刘学
Owner 山东电子职业技术学院
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