| CPC G06T 9/001 (2013.01) [G06T 2219/008 (2013.01)] | 9 Claims |
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1. A method comprising:
decoding a pixel value of an occupancy map,
the pixel value indicating whether or not a pixel of a first depth image representative of a projection of a first 3D sample of a point cloud onto a projection plane along a projection line is occupied,
and the pixel value comprising a codeword that concatenates bits indicating whether positions along the projection line laying in-between a first depth value of the pixel obtained from the first depth image and a second depth value are occupied or not,
decoding a first information indicating whether or not the codeword has a fixed-length,
if the first information indicates that the codeword has a fixed-length, decoding a second information indicating a length of the codeword, the second depth value being obtained from the first depth value and the length of the codeword,
otherwise the second depth value is obtained from a second depth image, the length of the codeword being obtained as a difference between the second depth value and the first depth value,
reconstructing at least one other 3D sample for at least one position along the projection line indicated as occupied by one bit of the codeword.
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