METHOD AND DEVICE FOR ENCODING A DEPTH MAP OF MULTI VIEWPOINT VIDEO DATA, AND METHOD AND DEVICE FOR DECODING THE ENCODED DEPTH MAP
First Claim
1. A method of encoding a depth map of multi-view video data, the method comprising:
- obtaining a multi-view color video frame and a depth map frame corresponding to the multi-view color video frame;
prediction-encoding and restoring the obtained multi-view color video frame;
splitting a block of the restored multi-view color video frame into at least one partition based on a pixel value of the block of the restored multi-view color video frame;
obtaining a parameter indicating a correlation between each of block partitions of the multi-view color video frame and each of block partitions of the depth map frame by using peripheral pixel values of the block partitions of the multi-view color video frame and peripheral pixel values of the block partitions of the depth map frame corresponding to the block partitions of the multi-view color video frame with respect to each of the block partitions of the restored multi-view color video frame; and
obtaining prediction values of the corresponding block partitions of the depth map frame from the block partitions of the restored multi-view color video frame by using the obtained parameter.
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Abstract
A method and apparatus for decoding the depth map of multi-view video data are provided. The method includes splitting a block of restored multi-view color video frame into a partition based on a pixel value of the block of the prediction-encoded and restored multi-view color video frame; obtaining a parameter indicating correlation between block partitions of the multi-view color video frame and block partitions of the depth map frame using peripheral pixel values of the block partitions of the multi-view color video frame and peripheral pixel values of the block partitions of the depth map frame corresponding to the block partitions of the multi-view color video frame with respect to each of the block partitions of the restored multi-view color video frame; and obtaining prediction values of corresponding block partitions of the depth map frame from the block partitions of the restored multi-view color video frame using the obtained parameter.
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Citations
15 Claims
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1. A method of encoding a depth map of multi-view video data, the method comprising:
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obtaining a multi-view color video frame and a depth map frame corresponding to the multi-view color video frame; prediction-encoding and restoring the obtained multi-view color video frame; splitting a block of the restored multi-view color video frame into at least one partition based on a pixel value of the block of the restored multi-view color video frame; obtaining a parameter indicating a correlation between each of block partitions of the multi-view color video frame and each of block partitions of the depth map frame by using peripheral pixel values of the block partitions of the multi-view color video frame and peripheral pixel values of the block partitions of the depth map frame corresponding to the block partitions of the multi-view color video frame with respect to each of the block partitions of the restored multi-view color video frame; and obtaining prediction values of the corresponding block partitions of the depth map frame from the block partitions of the restored multi-view color video frame by using the obtained parameter. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for encoding a depth map of multi-view video data, the apparatus comprising:
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an image obtainer which is configured to obtain a multi-view color video frame and a depth map frame corresponding to the multi-view color video frame; a color video frame encoder which is configured to prediction-encode the obtained multi-view color video frame; a restorer which is configured to restore the encoded color video frame; a splitter which is configured to split a block of the restored multi-view color video frame into at least one partition based on a pixel value of the block of the restored multi-view color video frame; a correlation parameter obtainer which is configured to obtain a parameter indicating a correlation between each of block partitions of the multi-view color video frame and each of block partitions of the depth map frame by using peripheral pixel values of the block partitions of the multi-view color video frame and peripheral pixel values of the block partitions of the depth map frame corresponding to the block partitions of the multi-view color video frame with respect to each of the block partitions of the restored multi-view color video frame; and a depth map frame predictor which is configured to obtain prediction values of the corresponding block partitions of the depth map frame from the block partitions of the restored multi-view color video frame by using the obtained parameter.
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8. A method of decoding a depth map of multi-view video data, the method comprising:
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receiving a bitstream obtained by encoding a multi-view color video frame and a depth map frame corresponding to the multi-view color video frame; decoding the multi-view color video frame; splitting a block of the decoded multi-view color video frame into at least one partition based on a pixel value of the block of the decoded multi-view color video frame; obtaining a parameter indicating a correlation between each of block partitions of the multi-view color video frame and each of block partitions of the depth map frame by using peripheral pixel values of the block partitions of the multi-view color video frame and peripheral pixel values of the block partitions of the depth map frame corresponding to the block partitions of the multi-view color video frame with respect to each of the block partitions of the decoded multi-view color video frame; and obtaining prediction values of the corresponding block partitions of the depth map frame from the block partitions of the decoded multi-view color video frame by using the obtained parameter. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus for decoding a depth map of multi-view video data, the apparatus comprising:
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a receiver which is configured to receive a bitstream obtained by encoding a multi-view color video frame and a depth map frame corresponding to the multi-view color video frame; a color video frame decoder which is configured to decode the encoded multi-view color video frame obtained from the bitstream; a splitter which is configured to split a block of the decoded multi-view color video frame into at least one partition based on a pixel value of the block of the decoded multi-view color video frame; a correlation parameter obtainer which is configured to obtain a parameter indicating a correlation between each of block partitions of the multi-view color video frame and each of block partitions of the depth map frame by using peripheral pixel values of the block partitions of the multi-view color video frame and peripheral pixel values of the block partitions of the depth map frame corresponding to the block partitions of the multi-view color video frame with respect to each of the block partitions of the decoded multi-view color video frame; and a depth map decoder which is configured to obtain prediction values of the corresponding block partitions of the depth map frame from the block partitions of the decoded multi-view color video frame by using the obtained parameter.
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Specification