Encoding and decoding of volumetric video

A method, comprising:

• decoding a first texture picture from a bitstream to obtain first decoded texture data, said first texture picture comprising a first projection of texture data of a first source volume of a scene model to a first projection surface, said scene model comprising a number of further source volumes;
• decoding a first geometry picture from said bitstream to obtain first decoded scene geometry data, said first geometry picture comprising a mapping of said first projection surface to said first source volume;
• decoding first projection geometry information of said first projection from said bitstream, said first projection geometry information comprising information of a position of said first projection surface in said scene model;
• and
• computing a reconstructed scene model based on projecting said first decoded texture data to a first destination volume using said first decoded scene geometry data and said first projection geometry information.

An apparatus comprising:

• at least one processor;
• and
• at least one non-transitory memory including computer program code;
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform:
• encode a first texture picture into a bitstream, said first texture picture comprising a first projection of texture data of a first source volume of a scene model to a first projection surface, said scene model comprising a number of further source volumes;
• encode a first geometry picture into said bitstream, said first geometry picture comprising a mapping of said first projection surface to said first source volume;
• and
• encode a first projection geometry information of said first projection into said bitstream, said first projection geometry information comprising information of a position of said first projection surface in said scene model.

An apparatus comprising:

• at least one processor;
• and
• at least one non-transitory memory including computer program code;
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform:
• decode a first texture picture from a bitstream to obtain first decoded texture data, said first texture picture comprising a first projection of texture data of a first source volume of a scene model to a first projection surface, said scene model comprising a plurality of further source volumes;
• decode a first geometry picture from said bitstream to obtain first decoded scene geometry data, said first geometry picture comprising a mapping of said first projection surface to said first source volume;
• decode a first projection geometry information of said first projection from said bitstream, said first projection geometry information comprising information of a position of said first projection surface in said scene model;
• and
• compute a reconstructed scene model based on projecting said first decoded texture data to a first destination volume using said first decoded scene geometry data and said first projection geometry information.

A system comprising at least one processor, nontransitory memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the system to perform at least the following:

• encode a first texture picture into a bitstream, said first texture picture comprising a first projection of texture data of a first source volume of a scene model to a first projection surface, said scene model comprising a number of further source volumes;
• encode a first geometry picture into said bitstream, said first geometry picture comprising a mapping of said first projection surface to said first source volume,
• encode a first projection geometry information of said first projection into said bitstream, said first projection geometry information comprising information of a position of said first projection surface in said scene model;
• decode said first texture picture from a bitstream to obtain first decoded texture data, decode said first geometry picture from said bitstream to obtain first decoded scene geometry data;
• decode said first projection geometry information of said first projection from said bitstream;
• and
• compute a reconstructed scene model based on projecting said first decoded texture data to a first destination volume using said first decoded scene geometry data and said first decoded projection geometry information.

A system comprising at least one processor, non-transitory memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the system to perform at least the following:

• decode a first texture picture from a bitstream to obtain first decoded texture data, said first texture picture comprising a first projection of texture data of a first source volume of a scene model to a first projection surface, said scene model comprising a number of further source volumes;
• decode a first geometry picture from said bitstream to obtain first decoded scene geometry data, said first geometry picture comprising a mapping of said first projection surface to said first source volume;
• decode a first projection geometry information of said first projection from said bitstream, said first projection geometry information comprising information of a position of said first projection surface in said scene mode;
• and
• compute a reconstructed scene model based on projecting said first decoded texture data to a first destination volume using said first decoded scene geometry data and said first projection geometry information.