Method and apparatus for expanding moving pictures by software

A moving picture expansion method for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said method comprising the steps of:

• determining whether a picture type of two adjacent frames is a B picture;
• and
• conducting expansion processing of each frame among said two adjacent frames alternately for each one macro block.

A moving picture expansion method for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said method comprising the steps of:

• determining whether a picture type of a plurality of consecutive frames is a B picture;
• and
• conducting expansion processing of each frame among said plurality of consecutive frames alternately for every plurality of macro blocks.

A moving picture expansion method for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said method comprising the steps of:

• determining whether a picture type of two adjacent frames is a B picture;
• and
• conducting expansion processing of each frame among said two adjacent frames alternately for every plurality of macro blocks.

A moving picture expansion method for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks,

• alternately conducting expansion processing of each frame among a plurality of adjacent B picture type frames on a constant number (K) of macro blocks in a corresponding position of each adjacent B picture type frame.

A moving picture expansion apparatus for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said apparatus comprising:

• a CPU for determining whether a picture type of a plurality of consecutive frames is a B picture and conducting expansion processing of each frame among said plurality of consecutive frames alternately for each one macro block;
• and
• a cache memory for storing a part of said plurality of macro blocks within the consecutive frames to be referred to in said expansion processing.

A moving picture expansion apparatus for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said apparatus comprising:

• a CPU for determining whether a picture type of a two adjacent frames is a B picture and conducting expansion processing of each frame among said two adjacent frames alternately for each one macro block;
• and
• a cache memory for storing a part of said plurality of macro blocks within the two adjacent frames to be referred to in said expansion processing.

A moving picture expansion apparatus for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said apparatus comprising:

• a CPU for determining whether a picture type of a plurality of consecutive frames is a B picture and conducting expansion processing of each frame among said plurality of consecutive frames alternately for every plurality of macro blocks;
• and
• a cache memory for storing a part of said plurality of macro blocks within the consecutive frames to be referred to in said expansion processing.

A moving picture expansion apparatus for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said apparatus comprising:

• a CPU for determining whether a picture type of two adjacent frames is a B picture and conducting expansion processing of each frame among said two adjacent frames alternately for every plurality of macro blocks;
• and
• a cache memory for storing a part of said plurality of macro blocks within the two adjacent frames to be referred to in said expansion processing.

A storage medium storing a program executable by a machine for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said program comprising the steps of:

• determining whether a picture type of a plurality of consecutive frames is a B picture;
• and
• conducting expansion processing of each frame among said plurality of consecutive frames alternately for each one macro block.

A storage medium storing a program executable by a machine for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said program comprising the steps of:

• determining whether a picture type of two adjacent frames is a B picture;
• and
• conducting expansion processing of each frame among said two adjacent frames alternately for each one macro block.

A storage medium storing a program executable by a machine for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said program comprising the steps of:

• determining whether a picture type of a plurality of consecutive frames is a B picture;
• and
• conducting expansion processing of each frame among said plurality of consecutive frames alternately for every plurality of macro blocks.

A storage medium storing a program executable by a machine for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said program comprising the steps of:

• determining whether a picture type of two adjacent frames is a B picture;
• and
• conducting expansion processing of each frame among said two adjacent frames alternately for every plurality of macro blocks.

A moving picture expansion method for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said method comprising a step of conducting expansion processing of each frame among a plurality of consecutive B picture type frames alternately for each one macro block.

A moving picture expansion method for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said method comprising a step of conducting expansion processing of each frame among a plurality of consecutive B picture type frames alternately for every plurality of macro blocks.

A moving picture expansion apparatus for conducting expansion processing of compressed moving picture data having a plurality of frames, each frame including a plurality of macro blocks, said apparatus comprising a CPU for conducting expansion processing of each frame among a plurality of consecutive B picture type frames alternately for each one macro block.

A moving picture expansion apparatus for conducting expansion processing of compressed moving picture data having a plurality of frames, each fame including a plurality of macro blocks, said apparatus comprising a CPU for conducting expansion processing of each frame among a plurality of consecutive B picture type frames alternately or every plurality of macro blocks.