3D-HEVC (High Efficiency Video Coding) multi-resolution video coding method

A 3D-HEVC, video coding technology, applied in the field of 3D video coding, can solve problems such as reducing the bit rate

Active Publication Date: 2015-07-15
上海水晶石数字技术有限公司
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Problems solved by technology

For the video dependent on the viewpoint, the resolution-red

Method used

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  • 3D-HEVC (High Efficiency Video Coding) multi-resolution video coding method
  • 3D-HEVC (High Efficiency Video Coding) multi-resolution video coding method
  • 3D-HEVC (High Efficiency Video Coding) multi-resolution video coding method

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Embodiment Construction

[0022] A 3D-HEVC multi-resolution video coding method, using the 3D video coding HTM model, the test conditions refer to the general test conditions of JCT-3V (JCT3V-E1100), using the configuration file 3view+ of the 3-viewpoint video coding that comes with the HTM model depth.cfg, scaling factor s=2 for downsampling and upsampling.

[0023] For specific implementation steps, refer to the accompanying drawings (1) to (4) in the description.

[0024] 3D-HEVC video encoder steps such as figure 1 Shown:

[0025] Step (1), input the base view and dependent view videos into the HTM encoder according to the reference order of the encoder configuration file.

[0026] Step (2), the base view video is encoded with the original resolution, and the dependent view video is down-sampled by using the median filter method based on mean diversity before performing DCT transformation, such as image 3 shown. The steps are:

[0027] a. For each frame of video data, define a m×m square pixe...

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Abstract

The invention relates to a 3D-HEVC (High Efficiency Video Coding) multi-resolution video coding method. According to the method, a basic viewpoint video is coded inside a video coder by adopting an original resolution while a dependent viewpoint video is coded by adopting a lower resolution. According to the method, down-sampling of the basic viewpoint video is taken as a reference frame of the dependent viewpoint video, and meanwhile down-sampling is performed on the dependent viewpoint video in the coder. In a decoder, accurate up-sampling is performed on a brightness component by adopting a six-tap filter with a double-filter interpolation method, and up-sampling is performed on a chromaticity component by adopting a four-tap filter since the sensitivity of human eyes to the change of video image brightness is higher than the sensitivity to the change of chromaticity. Through adoption of the method, the algorithm complexity is lowered on the premise of keeping the coding performance.

Description

technical field [0001] The invention belongs to the technical field of 3D video coding, and in particular relates to a multi-resolution video coding method. Background technique [0002] With the development of multimedia communication technology, people have higher requirements for multimedia experience. In practical video applications, such as video surveillance, high-definition video communication, and network video playback, due to the large amount of original video data, it is difficult to store and the network bandwidth is limited. Difficult to transfer etc. With the introduction of the new generation of video coding standard HEVC, it has brought efficient solutions to these problems. However, the mainstream trend of video applications has gradually become ultra-high-definition 3D applications. The existing high-efficiency video compression standard HEVC has been difficult to adapt to 3D. Characteristics of video data. 3D-HEVC, the encoding standard for multi-view an...

Claims

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Application Information

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IPC IPC(8): H04N19/597H04N19/82
Inventor 陆宇柯小林周洋姚英彪郭春生
Owner 上海水晶石数字技术有限公司
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