JP2010010950A5

JP2010010950A5 -

Info

Publication number: JP2010010950A5
Application number: JP2008166348A
Authority: JP
Filing date: 2008-06-25
Publication date: 2011-05-12
Anticipated expiration: 2028-06-25

Claims

Obtaining a first motion vector corresponding to an already encoded first pixel region;
Deriving a group of motion vectors including at least one of the first motion vectors;
Deriving a second motion vector corresponding to each of the third pixel regions obtained by dividing the second pixel region before encoding based on the motion vector group;
Generating a first inter-predicted image for each of the third pixel regions using the second motion vector;
Integrating the first inter-predicted image to generate a second inter-predicted image corresponding to the second pixel region before encoding;
An image encoding method comprising: encoding a prediction error between the second inter predicted image and the original image.

Obtaining a first motion vector corresponding to a second pixel region obtained by dividing the already encoded first pixel region;
Bundling the first motion vectors that are spatially continuous to derive a motion vector block of the same size as the first pixel region;
Each of the first motion vectors constituting the motion vector block is spatially associated as a second motion vector corresponding to each of the third pixel areas obtained by dividing the first pixel area before encoding. Substituting and
Generating a first inter-predicted image for each of the third pixel regions using the second motion vector;
Integrating the first inter-predicted image to generate a second inter-predicted image corresponding to the first pixel region before encoding;
An image encoding method comprising: encoding a prediction error between the second inter predicted image and the original image.

3. The first motion vector and the second motion vector indicate a reference position in a reference image frame in a frame unit configured by the already encoded first pixel region. Image coding method.

The first motion vector is acquired in frame units as a motion vector frame,
4. The image encoding method according to claim 3, wherein a first motion vector at the same position as the first pixel area before encoding in the motion vector frame is derived as the motion vector block.

The image encoding method according to claim 3, further comprising encoding position information of the motion vector block.

6. The image encoding method according to claim 5, wherein the position information indicates a spatio-temporal shift amount of the motion vector block with respect to the first pixel region before the encoding.

Estimating a third motion vector corresponding to the first pixel region before encoding;
Using the third motion vector to generate a third inter prediction image of the first pixel region before the encoding;
Selecting either one of the second inter prediction image and the third inter prediction image as an optimal prediction image,
The image encoding method according to claim 4 , wherein a prediction error between the optimal prediction image and the original image is encoded.