Coding method, decoding method, coder and decoder of three-dimension video

A technology of 3D video and coding method, which is applied in the field of 3D video coding/decoding method and coding/decoding device based on Wiener filtering, and can solve problems such as insufficient reference frame quality and affecting video sequence coding performance

Active Publication Date: 2013-05-15
TSINGHUA UNIV
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Problems solved by technology

[0004] The shortcoming of existing view synthesis prediction techniques is that the quality of view synthesis

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  • Coding method, decoding method, coder and decoder of three-dimension video
  • Coding method, decoding method, coder and decoder of three-dimension video
  • Coding method, decoding method, coder and decoder of three-dimension video

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention provides a coding method, a decoding method, a coder and a decoder of a three-dimension video. The coding method comprises the following steps. Firstly, a depth map and a texture map of a reference viewpoint are coded and a reference viewpoint coding reconstruction depth image and a reference viewpoint coding reconstruction texture image are obtained. A target viewpoint synthesis reference frame is obtained through three-dimension geometric transformation based on the reference viewpoint coding reconstruction depth image, the reference viewpoint coding reconstruction texture image and corresponding camera parameters. A reference viewpoint original texture image is obtained as an original signal and the target viewpoint synthesis reference frame is used as a plus-noise signal to carry out wiener filtering, an optimized target viewpoint synthesis reference frame is obtained and wiener filter parameters are worked out. The optimized target viewpoint synthesis reference frame is added into a reference frame set and the wiener filter parameters are written into a code flow. The coding method, the decoding method, the coder and the decoder of the three-dimension video have the advantages of improving coding efficiency and improving video quality.

Description

technical field [0001] The present invention relates to the technical field of three-dimensional video coding, and in particular proposes a Wiener filtering-based three-dimensional video coding / decoding method and coding / decoding device. Background technique [0002] With the continuous development of multimedia communication technology, the traditional two-dimensional flat image video, and even the fixed-viewpoint three-dimensional image video can no longer meet people's visual perception needs. In recent years, there has been a demand for free-viewpoint video and 3D video in many application fields such as medicine, military affairs, and entertainment. For example, a free-viewpoint display device that can freely switch viewing angles, and a 3D TV that displays videos of different wide-view angles to viewers at different positions. In order to realize these applications, efficient multi-view video coding technology is particularly important. [0003] In multi-view video c...

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Application Information

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IPC IPC(8): H04N7/26H04N13/00H04N19/117H04N19/62
Inventor 戴琼海马茜
Owner TSINGHUA UNIV
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