Apparatus and method for encoding and decoding multi-view image

An apparatus for encoding a multi-view image, the apparatus comprising:

• a base layer encoding unit that encodes a base layer image to generate a base layer bit stream;
• a view-based conversion unit that performs view-based conversion on the base layer image to generate a view-converted base layer image;
• a residual detection unit that obtains a residual image between an enhancement layer image and the view-converted base layer image obtained by subtracting the enhancement layer image from the view-converted base layer image;
• and
• an enhancement layer encoding unit that encodes the obtained residual to generate an enhancement layer bit stream.

A method for decoding a multi-view image, the method comprising:

• reconstructing a base layer bit stream to generate a reconstructed base layer image;
• performing view-based conversion on the reconstructed base layer image to generate a view-converted base layer image;
• decoding an enhancement layer bit stream to obtain a residual image obtained by subtracting an enhancement layer image from the view-converted base layer image;
• and
• adding the residual to the view-converted base layer image to generate the enhancement layer image.

An apparatus for decoding a multi-view image, the apparatus comprising:

• a base layer decoding unit that reconstructs a base layer bit stream to generate a reconstructed base layer image;
• a view-based conversion unit that performs view-based conversion on the reconstructed base layer image;
• an enhancement layer decoding unit that decodes an enhancement layer bit stream to obtain a residual image obtained by subtracting an enhancement layer image from the view-converted base layer image;
• and
• an image reconstruction unit that adds the residual to the view-converted base layer image to generate the enhancement layer image.