Transport stream structure of image data having additional information inserted, and method and apparatus for transmission and reception thereof

An apparatus for transmitting image data, the apparatus comprising:

• an encoding unit that receives the image data and encodes the image data to generate a transport stream packet comprising a header that comprises control information for reproducing the encoded image data;
• a compressing unit that compresses the header by using a lossless compression algorithm;
• and
• an additional information inserting unit that inserts additional information of the image data in an additional information field that is generated in the transport stream packet based on compressing the header by using the lossless compression algorithm.

An apparatus for receiving image data, the apparatus comprising:

• an additional information extracting unit that receives a first transport stream packet comprising a header and additional information of the image data, and extracts the additional information,
• wherein the header comprises control information for reproducing the image data and is compressed by using a lossless compression algorithm, and the additional information is included in an additional information field of the first transport stream packet generated based on compressing the header by using the lossless compression algorithm;
• a restoring unit that restores the compressed header to an original header in a state before compressing the header by using the lossless compression algorithm, and generates a second transport stream packet comprising the original header;
• and
• a decoding unit that receives and decodes the second transport stream packet to obtain the image data.

A method of transmitting image data, the method comprising:

• receiving the image data and encoding the image data to generate a transport stream packet comprising a header that comprises control information for reproducing the encoded image data;
• compressing the header by using a lossless compression algorithm;
• and
• inserting additional information of the image data in an additional information field that is generated in the transport stream packet based on the compressing the header by the using the lossless compression algorithm.

A method of receiving image data, the method comprising:

• receiving a first transport stream packet comprising a header and additional information of the image data, and extracting the additional information,
• wherein the header comprises information for reproducing the image data and is compressed by using a lossless compression algorithm, and the additional information is included in an additional information field of the transport stream packet generated based on the compressing the header by the using the lossless compression algorithm;
• restoring the compressed header to an original header in a state before the compressing the header by the using the lossless compression algorithm, and generating a second transport stream packet comprising the original header;
• and
• receiving and decoding the second transport stream packet to obtain the image data.