Methods and apparatuses for generating and recovering 3D compression data

A method of recovering three-dimensional (3D) compression data, the method comprising:

• separating a 3D compression data sequence and configuration information of the 3D compression data sequence from a received, multiplexed signal;
• separating a plurality of pieces of individual 3D compression data and individual configuration information for each of the pieces of individual 3D compression data from the 3D compression data sequence, the individual configuration information including a header corresponding to the individual 3D compression data and the header including a data type code containing information regarding a data type of the individual 3D compression data;
• separating each start code from the pieces of individual 3D compression data according to the data type code of each of the pieces of individual 3D compression data;
• and
• decoding each of the pieces of individual 3D compression data using the data type included in the individual configuration information, wherein a type of decoding used to decode each piece of individual 3D compression data corresponds to the data type code of the piece of individual 3D compression data.

An apparatus to generate three-dimensional (3D) compression data, the apparatus comprising:

• an encoder which generates different pieces of individual 3D compression data by encoding received 3D data according to a data type of the 3D data, generates a 3D compression data sequence by generating individual configuration information for each of the pieces of individual 3D compression data and combining the individual configuration information with the corresponding piece of individual 3D compression data, respectively, generates configuration information of the 3D compression data sequence, combines the configuration information with the 3D compression data sequence, and multiplexes the combined result, wherein the individual configuration information includes a header corresponding to the individual 3D compression data and the header includes a data type code containing information regarding the data type of the individual 3D compression data,
• wherein, prior to the generation of the pieces of individual 3D compression data, the encoder generates a start code according to the data type of the pieces of individual 3D compression data and
• wherein the encoding of the received 3D data according to the data type of the 3D data comprises using an encoding method that corresponds to the data type code of the piece of individual 3D compression data to encode the piece of individual 3D compression data.

An apparatus to recover three-dimensional (3D) compression data from a received signal, the apparatus comprising:

• a decoder which separates a 3D compression data sequence and configuration information of the 3D compression data sequence from the received, multiplexed signal;
• separates a plurality of pieces of individual 3D compression data and individual configuration information for each of the pieces of individual 3D compression data from the 3D compression data sequence;
• analyzes a data type code comprising information of a data type of the pieces of individual 3D compression data, which is included in the individual configuration information;
• and decodes each of the pieces of individual 3D compression data according to a respective data type code, wherein the individual configuration information includes a header corresponding to the individual 3D compression data,
• wherein the decoder separates a start code from the pieces of individual 3D compression data according to the data type, and
• wherein the decoding of each of the pieces of individual 3D compression data according to the data type code comprises using a decoding method that corresponds to the data type code of the piece of individual 3D compression data to decode the piece of individual 3D compression data.

At least one non-transitory computer readable medium storing instructions that control at least one processor to perform a method of generating three-dimensional (3D) compression data, the method comprising:

• generating configuration information of a 3D compression data sequence;
• generating a plurality of pieces of individual 3D compression data to be included in the 3D compression data sequence;
• and
• generating the 3D compression data sequence by combining the plurality of pieces of the individual 3D compression data, combining the 3D compression data sequence with the configuration information, and multiplexing the combined result;
• wherein the generating of each of the plurality of pieces of individual 3D compression data comprises:
• generating individual configuration information of each of the pieces of individual 3D compression data, the individual configuration information including a header corresponding to the individual 3D compression data and the header including a data type code containing information regarding the data type of the individual 3D compression data;
• generating a start code according to a data type of the piece of individual 3D compression data;
• and
• generating the pieces of individual 3D compression data wherein a type of encoding used to encode each piece of individual 3D compression data corresponds to the data type code of the piece of individual 3D compression data.

At least one non-transitory computer readable medium storing instructions that control at least one processor to perform a method of recovering three-dimensional (3D) compression data, the method comprising:

• separating a 3D compression data sequence and configuration information of the 3D compression data sequence from a received, multiplexed signal;
• separating a plurality of pieces of individual 3D compression data and individual configuration information for each of the pieces of individual 3D compression data from the 3D compression data sequence, the individual configuration information including a header corresponding to the individual 3D compression data and the header including a data type code containing information regarding a data type of the individual 3D compression data;
• separating each start code from the pieces of individual 3D compression data according to the data type code of each of the pieces of individual 3D compression data;
• and
• decoding each of the pieces of individual 3D compression data using the data type included in the individual configuration information, wherein a type of decoding used to decode each piece of individual 3D compression data corresponds to the data type code of the piece of individual 3D compression data.

A method of generating three-dimensional (3D) compression data, the method comprising:

• generating configuration information of a 3DCObjectSequence, which is the 3D compression data;
• generating 3DCObjects, which are a plurality of pieces of individual 3D compression data and are included in the 3D compression data;
• and
• generating a 3D compression data sequence by combining the plurality of pieces of individual 3D compression data, combining the 3D compression data sequence with configuration information of the 3D compression data sequence, and outputting the combined result;
• wherein the generating of the 3DCObjects comprises:
• generating individual configuration information of the respective pieces of individual 3D compression data,
• generating a start code according to a data type of the respective pieces of individual 3D compression data, and
• generating the individual 3D compression data according to the data type,
• wherein the generation of the pieces of individual 3D compression data is realized by:
• 3DCObject( ) {
• 3dc_object_start_code
• is_3dc_object_identifier
• if(is_3DC_object_identifier){
• 3dc_object_verid
• 3dc_object_priority
• }
• 3dc_object_type_indication
• next_start_code( )
• if (3dc_object_type_indication == “Simple_3DMC”) {
• 3D_Mesh_Object( )
• }
• else if (3dc_object_type_indication == “Simple_WSSI”) {
• WSS_start_code
• Wavelet_Mesh_Object( )
• }
• else if (3dc_object_type_indication == “Main_CI”) {
• CoordIC_start_code
• CompressedCoordinateInterpolator( )
• }
• else if (3dc_object_type_indication == “Main_OI”) {
• OriIC_start_code
• CompressedOrientationInterpolatort( )
• }
• else if (3dc_object_type_indication == “Main_PI”) {
• PosIC_start_code
• CompressedPositionInterpolator( )
• }
• else if (3dc_object_type_indication == “Simple_BBA”)
• {
• bba_object( )
• }
• (more object types and corresponding decoders can be defined.)
• if (next_bits( ) != “000 0000 0000 0000 0000 0001”
• next_start_code( )
• },
• and wherein 3dc_object_start_code denotes code representing a start of a 3DCObject, is_3dc_object_identifier denotes an identifier of the 3DCObject, 3dc_object_verid denotes code representing identification of a version of the 3DCObject, 3dc_object_priority denotes code representing a priority of the 3DCObject, 3dc_object_type_indication denotes the data type of the individual 3D compression data, WSS_start_code, CoordIC_start_code, and PosIC_start_code, are start codes for data types, respectively.

A method of generating a three-dimensional (3D) compression data sequence including a plurality of pieces of individual 3D compression data, the method comprising:

• generating individual configuration information of each of the respective pieces of individual 3D compression data, the individual configuration information including a header corresponding to the individual 3D compression data, wherein the header comprises a field describing a version number of a tool list of the data type and a data type code containing information regarding the data type of the individual 3D compression data;
• generating a start code according to the data type of the respective pieces of individual 3D compression data;
• and
• generating a plurality of pieces of individual 3D compression data to be included in the individual 3D compression data sequence wherein a type of encoding used to encode each piece of individual 3D compression data corresponds to the data type code of the piece of individual 3D compression data.