Method for encoding and decoding moving picture signals

A method for encoding digital motion picture signals of a frame, comprising the steps of:

• dividing said frame into plural blocks each including N×M pixels;
• forming a subframe composed of a set of said blocks, said subframe being a unit to be encoded;
• and
• varying the number of said blocks included in said subframe according to a quantity of information generated by encoding each block to vary a spatial size of each of said subframes included in each frame.

A method for encoding digital motion picture signals of a frame, comprising the steps of:

• dividing said frame into plural blocks each including N×M pixels;
• forming a subframe composed of a set of said blocks, said subframe being a unit to be encoded;
• setting an identifier to said subframe to identify said subframe;
• specifying a frame to which said subframe belongs by adding to said identifier time position information representing an order of displaying said subframe;
• encoding said time position information along with said subframe, and
• multiplexing said encoded time position information and a bit stream of said encoded subframe to transmit said encoded time position information and said bit stream;
• and
• varying the number of said blocks included in said subframe according to a quantity of information generated by encoding each block to vary a spatial size of each of said subframes included in each frame.

A method for encoding and decoding digital motion picture signals of a frame, comprising the steps of:

• dividing said frame into plural blocks each including N×M pixels;
• forming a subframe composed of a set of said blocks, said subframe being a unit to be encoded;
• setting an identifier to said subframe to identify said subframe;
• specifying a frame to which said subframe belongs by adding to said identifier time position information representing an order of displaying said subframe;
• encoding said time position information along with said subframe;
• multiplexing said encoded time position information and a bit stream of said encoded subframe to transmit said encoded time position information and said bit stream;
• and
• decoding each of said subframes appropriately in relation to time by decoding and using said time position information to form said frame of said digital moving picture signals.

A method for encoding and decoding digital motion picture signals of a frame, comprising the steps of:

• dividing said frame into plural blocks each including N×M pixels;
• forming a subframe composed of a set of said blocks, said subframe being a unit to be encoded;
• varying the number of said blocks included in said subframe according to a quantity of information generated by encoding each block to vary a spatial size of each of said subframes included in each frame;
• and
• decoding each of said subframes to form said frame of said digital moving picture signal.

A method for encoding and decoding digital motion picture signals of a frame, comprising the steps of:

• dividing said frame into plural blocks each including N×M pixels;
• forming a subframe composed of a set of said blocks, said subframe being a unit to be encoded,
• setting an identifier to said subframe to identify said subframe;
• specifying a frame to which said subframe belongs by adding to said identifier time position information representing an order of displaying said subframe;
• encoding said time position information along with said subframe;
• multiplexing said encoded time position information and a bit stream of said encoded subframe to transmit said encoded time position information and said bit stream;
• varying the number of said blocks included in said subframe according to a quantity of information generated by encoding each block to vary a spatial size of each of said subframes included in each frame;
• and
• decoding said subframe appropriately in relation to time by decoding and using said time position information to form said frame of said digital moving picture signal.

A method for decoding an encoded bitstream, said method comprising:

• (a) receiving said encoded bitstream containing an identifier, an encoded subframe obtained by encoding a subframe composed of at least one block and an encoded time position information representing an order of displaying said subframe, wherein said identifier is set to said encoded subframe to identify said subframe, said encoded time position information is added to said identifier by specifying a frame to which said subframe belongs;
• (b) detecting said identifier to extract said encoded time position information from said encoded bitstream;
• (c) decoding said extracted encoded time position information to obtain decoded time position information;
• and
• (d) decoding said encoded subframe to form said frame according to said decoded time position information.