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Depth video coding method

A coding method and technology of depth video, applied in the field of depth video coding, can solve problems such as drawing influence

Active Publication Date: 2014-12-24
湖州优研知识产权服务有限公司
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Problems solved by technology

[0003] However, if the color video coding method is used directly to code the depth video, there will be the following problems: 1) The depth video coding will affect the subsequent virtual viewpoint rendering, and different regions have different depth sensitivity fidelity , while traditional video encoders do not consider this factor; 2) According to the data characteristics of depth video, its texture is relatively simple and contains more flat areas, so different areas should be assigned different calculation loads according to their importance, and Traditional video encoders distribute the same computational load to all regions

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] A kind of depth video coding method that the present invention proposes, its flow chart is as follows figure 1 As shown, it includes the following steps:

[0027] 1. The original color video image at time t in the three-dimensional video and the original depth video image at time t are correspondingly recorded as {I t,i (x,y)} and {D t (x, y)}, where, i=1, 2, 3 respectively represent the three components of the YUV color space, the first component of the YUV color space is the brightness component and is recorded as Y, and the second component is the first color The degree component is denoted as U and the third component is the second chroma component and denoted as V, (x, y) means {I t,i (x,y)} and {D t The coordinate position of the pixel point in (x, y)}, 1≤x≤W, 1≤y≤H, W means {I t,i (x,y)} and {D t The width of (x,y)}, H mean...

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Abstract

The invention discloses a depth video coding method. The depth video coding method comprises the steps that firstly, maximum tolerable distortion distribution images of original depth video images are obtained according to the impact of depth distortion on virtual viewpoint images; secondly, coding quantization parameters for conducting macro block coding on the original depth video images are calculated; thirdly, a rate-distortion cost function for conducting macro block coding on the original depth video images is calculated; lastly, the original depth video images are coded by adopting an HBP coding prediction structure and according to the determined coding quantization parameters and the rate-distortion cost function. The depth video coding method has the advantages that on the basis of ensuring the drawing performance of the virtual viewpoint images, the visual redundant information of depth videos is fully eliminated, the coding efficiency of the depth video images is greatly improved, and the coding complexity of the depth video images is greatly lowered.

Description

technical field [0001] The invention relates to a video signal encoding and compression method, in particular to a depth video encoding method. Background technique [0002] Since the beginning of this century, with the digital 2D (two-dimensional) video technology becoming more and more mature, and the rapid development of computer, communication and network technology, people have a strong demand for a new generation of video systems. The current two-dimensional video system is difficult to meet the user's needs for three-dimensionality and viewpoint interaction when representing natural scenes. The 3D video system is more and more popular because it can provide a brand-new visual experience with three-dimensional sense and viewpoint interaction. Application prospects. Compared with single-channel video, 3D video contains depth video information, and its data volume is much larger than that of traditional 2D video. Therefore, the 3D video should be reduced as much as pos...

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Application Information

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IPC IPC(8): H04N19/597H04N19/147H04N19/186
Inventor 邵枫李祖团郁梅李福翠
Owner 湖州优研知识产权服务有限公司
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