Multi-view video coding and decoding methods and apparatuses, coder, and decoder
First Claim
1. A multi-view video coding method, comprising:
- minimizing an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset;
obtaining disparity information between the front view image and the currently coded view image according to the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; and
determining the warped view image of the front view image according to the disparity information and the front view image, and performing predictive coding on the currently coded view image by using the warped view image as a prediction signal.
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Accused Products
Abstract
Embodiments of the present invention provide multi-view video coding and coding methods and corresponding apparatuses. The multi-view video coding method includes: minimizing an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset; calculating disparity information between the front view image and the currently coded view image by using the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; and calculating the warped view image of the front view image by using the disparity information and the front view image, and predicting a current view image by using the warped view image as a prediction signal.
4 Citations
26 Claims
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1. A multi-view video coding method, comprising:
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minimizing an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset; obtaining disparity information between the front view image and the currently coded view image according to the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; and determining the warped view image of the front view image according to the disparity information and the front view image, and performing predictive coding on the currently coded view image by using the warped view image as a prediction signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A multi-view video decoding method, comprising:
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parsing a code stream of a current view image to obtain an optimal warping offset; determining disparity information between a front view image and a currently decoded view image according to the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; calculating a warped view image of the front view image according to the disparity information and the front view image; and using the warped view image as a reference image for reconstructing the currently decoded view image. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A multi-view video coding apparatus, comprising:
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an optimal warping offset obtaining unit, configured to minimize an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset; a first disparity information calculating unit, configured to obtain disparity information between the front view image and the currently coded view image according to the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; a first warped view image calculating unit, configured to determine the warped view image of the front view image according to the disparity information and the front view image; and a first coding prediction unit, configured to perform predictive coding on the currently coded view image by using the warped view image as a prediction signal. - View Dependent Claims (21, 22, 23)
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24. A multi-view video decoding apparatus, comprising:
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a code stream parsing unit, configured to parse a code stream of a current view image to obtain an optimal warping offset; a second disparity information calculating unit, configured to determine disparity information between a front view image and a currently decoded view image according to the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; a second warped view image calculating unit, configured to calculate a warped view image of the front view image according to the disparity information and the front view image; and a first decoding prediction unit, configured to use the warped view image as a reference image for reconstructing the currently decoded view image. - View Dependent Claims (25, 26)
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Specification