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Encoding and decoding method of depth model and video coder decoder

A technology of depth model and encoding method, which is applied in the field of image and video encoding and decoding, can solve the problems of increasing the complexity of the decoder and decoding time, and achieve the effects of reducing the complexity of encoding and decoding, reducing the decoding time, and reducing the number of bits

Inactive Publication Date: 2014-08-06
LG ELECTRONICS (CHINA) R&D CENT CO LTD
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Problems solved by technology

[0012] The purpose of the present invention is to overcome the problem existing in the prior art that when CTLB is inter-frame coding or intra-frame coding but the coding mode is 0 or 1, the decoder needs to search, thereby increasing the decoder complexity and decoding time. insufficient

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  • Encoding and decoding method of depth model and video coder decoder
  • Encoding and decoding method of depth model and video coder decoder
  • Encoding and decoding method of depth model and video coder decoder

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The embodiment of the present invention provides a simplified encoding and decoding scheme based on depth modeling mode (Depth Modeling Mode) when CTLB is inter-frame coding or intra-frame coding but the coding mode is 0 or 1, mainly for 3DV-HEVC (3D High Efficiency Vide Coding, 3D High Efficiency Video Coding) third depth model mode (DMM3). image 3 The processing flowchart of the encoding method for the depth model, such as image 3 As shown, can inclu...

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Abstract

The invention discloses a depth modeling mode coding and decoding method as well as a video codec, for the case where the CTLB is inter mode coding or when the CTLB is intra mode coding but an intra mode coding mode is 0 or 1. The coding method comprises: constructing a coarse set of Wedgelet patterns from prediction modes of a depth prediction unit; selecting an optimal Wedgelet pattern from the coarse set of Wedgelet patterns; coding index information of the optimal Wedgelet pattern, and performing depth modeling mode coding according to the optimal Wedgelet pattern. The embodiments of the invention greatly decrease decoding complexity, shortens decoding time by 2% and has little influence on compression efficiency.

Description

technical field [0001] The present invention relates to the field of image and video encoding and decoding, in particular to a method for encoding and decoding a depth model, specifically a depth model when CTLB is inter-frame coding or intra-frame coding but the intra-frame coding mode is 0 or 1 Codec methods and video codecs. Background technique [0002] Depth images generally consist of sharp edges and smooth non-edge objects. However, traditional intra prediction methods based on texture images cannot describe edge information well. Therefore, in the 98th MPEG conference, HHI (Heinrich Hertz Institute, Germany Hertz Institute) proposed an intra prediction method based on a depth model to encode depth images (H.Schwarz, K.Wegner, "Test Modelunder Consideration for HEVC based3D video coding, ISO / IECJTC1 / SC29 / WG11MPEG, Doc.M12350, Nov.2011, Geneva, Switzerland). This method includes a total of 4 intra prediction modes. Among them, in DMM3 (Depth Modeling Mode, depth mode...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/103H04N19/597H04N19/44H04N19/147H04N13/00
CPCH04N13/00H04N19/46H04N19/597
Inventor 刘鸿彬贾杰
Owner LG ELECTRONICS (CHINA) R&D CENT CO LTD
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