A Simplified Search Method for Deep Modeling Patterns
A technology of deep modeling mode and search method, applied in image communication, digital video signal modification, stereo system, etc., can solve the problems of 3D video acquisition and encoding efficiency limitation, transmission of a large number of color videos, etc., to reduce the computational complexity, The effect of simplifying the search process and reducing coding time
Active Publication Date: 2019-03-08
TIANJIN UNIV
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The MVV video coding method can provide good 3D perception, but it needs to transmit a large amount of color video, and there are certain limitations in 3D video acquisition and coding efficiency
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[0030] A simplified search method for a deep modeling mode of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings.
[0031] Such as figure 1 As shown, a simplified search method for a deep modeling mode of the present invention includes the following steps:
[0032] 1) Use the angle mode to predict the depth prediction unit; including:
[0033]In units of frames, the image is divided into multiple coding tree units, and each coding tree unit contains a coding tree block (Coding Tree Block, CTB) and syntax elements, where a coding tree block is composed of a luma coding tree block and a luma coding The chroma coding tree block corresponding to the tree is composed; a luminance coding tree block contains samples of L×L luminance components, and each chroma coding tree block contains samples of L / 2×L / 2 chrominance components; luminance coding The tree block and the chroma coding tree block are directly used as ...
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The invention discloses a simplified search method for depth modeling modes. The method comprises the steps of carrying out prediction on a depth prediction unit through adoption of an angle mode; carrying out boundary detection on the depth prediction unit and judging whether to directly skip over the depth modeling modes or not; establishing a roughly searched image sample set, wherein a step of carrying out view synthesis optimization is that after the roughly searched image sample set is obtained, image samples are selected from the set for view synthesis optimization, and through the view synthesis optimization, an image sample with the least distortion is taken as an initial optimum matching image sample, and the step of establishing a finely searched image sample set is that the optimum image sample is taken as a reference, a start point and an end point of the optimum image sample are obtained, 2 pixels are gotten in up and down and left and right directions by taking the start point and the end point as center points, the pixels are taken as the new start point and end point for combination, thereby obtaining 24 image samples, and the finely searched image sample set is obtained; selecting an optimum prediction mode and carrying out coding. According to the method, through simplification of a search process of the depth modeling modes, the coding time is reduced, the operation complexity is reduced, and the coding speed is improved.
Description
technical field [0001] The invention relates to 3D video coding. In particular, it relates to a simplified search method for deep modeling patterns for deep video coding modeling in 3D video sequences. Background technique [0002] In recent years, emerging multimedia services represented by free-view television have developed rapidly. In order to meet the needs of these applications in high-efficiency compression and transmission, 3D video coding technology has been extensively studied. Based on the video expression format, 3D video coding methods can be divided into two categories: one is based on the multiview video (Multiview Video, MVV) format, and the other is based on the multiview video plus depth (Multiview Video plus Depth, MVD) format. The MVV video coding method can provide good 3D perception, but it needs to transmit a large amount of color video, and there are certain limitations in 3D video acquisition and coding efficiency. However, the MVD video coding met...
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IPC IPC(8): H04N19/597H04N19/61H04N19/96H04N13/161
CPCH04N19/597H04N19/61H04N19/96
Inventor 雷建军孙振燕侯春萍朱涛张凝段金辉
Owner TIANJIN UNIV