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Video coding method and encoder

A video coding and encoder technology, applied in the field of multimedia signal transmission, can solve the problems of difficult and efficient transmission of video streams, network channel bandwidth channel errors, and the difficulty of compression algorithms to meet real-time transmission.

Inactive Publication Date: 2013-12-25
同观科技(深圳)有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult for a constant rate video stream to be efficiently transmitted in a network environment with relatively large bandwidth fluctuations, and the reconstruction quality of network terminal video is also affected to some extent.
[0009] Due to factors such as network heterogeneity, channel bandwidth fluctuations, and channel bit errors, it is difficult for the original storage-oriented compression algorithm to meet the requirements of real-time transmission.

Method used

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  • Video coding method and encoder
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  • Video coding method and encoder

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Embodiment Construction

[0033] Such as figure 2 As shown, the present invention discloses a video coding method, comprising steps:

[0034] Establish at least two layers of dependencies on the unencoded original video frame images, the number of frame images included in the upper layer of dependencies is less than the number of frame images included in the lower layer of dependencies;

[0035] Encode the frame image of the original video, and generate a code stream corresponding to each layer of dependencies.

[0036] Such as image 3 As shown, the present invention also discloses an encoder, and the encoder includes: a frame calculation module that establishes at least two levels of dependencies on unencoded original video frame images; coupled with the frame calculation module, the frame of the original video The image is encoded, and an encoding module of a code stream is correspondingly generated according to the dependencies of each layer.

[0037] After research, during the network transmis...

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Abstract

The invention discloses a video coding method and an encoder. The video coding method comprises the steps of establishing at least two layers of dependence relationship with the frame images of uncoded original videos, wherein the number of the frame images included in the upper layer dependence relationship is smaller than that included in the lower layer dependence relationship, and carrying out coding on the frame images of the original videos, wherein each layer of dependence relationship correspondingly generates a code stream. The video coding method and encoder can be matched with the networks of multiple bandwidths, provide code stream with high-compression ratio, and has good fault-tolerance performance.

Description

technical field [0001] The present invention relates to the field of multimedia signal transmission, and more specifically, relates to a video encoding method and an encoder. Background technique [0002] Video and audio codec technology is the core technology of digital video surveillance system. The quality of the video codec algorithm directly determines the clarity of the image, the bandwidth of network transmission, and the size of the storage space, which is the key to the realization of the technology. . [0003] Compared with the previous coding standards, the H.264 coding standard has some new features, such as motion compensation of multiple reference frames, variable block size motion compensation, intra-frame prediction coding, etc. By using these new features, H.264 is better than other coding standards. It has higher video quality and lower bit rate, so it has been recognized by people. [0004] The encoding architecture of H.265 / HEVC is roughly similar to th...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/32
Inventor 史方金明
Owner 同观科技(深圳)有限公司