Image processing device and image processing method

An image processing method for processing an image, comprising:

• determining a shape of a block set in an image using shape determination information for determining a shape of a block that is in accordance with a size;
• arranging a prediction unit in each block in the image according to the determined shape, and setting, for each arranged prediction unit, a motion vector to be used for prediction of an image in the prediction unit;
• and
• encoding the image using the set motion vector.

An image processing device comprising:

• a shape determination section for determining a shape of each block in an image using shape determination information for determining a shape of a block that is in accordance with a size and a size of a block set in the image at a time of encoding of the image;
• a prediction unit determination section for determining an arrangement of a prediction unit in each block according to the shape of each block determined by the shape determination section;
• a prediction section for generating a predicted image for each block using the arrangement of a prediction unit determined by the prediction unit determination section and a motion vector acquired for each prediction unit;
• and
• a decoding section for decoding an encoded stream in which the image is encoded, using the predicted image generated by the prediction section.

An image processing method for processing an image, comprising:

• determining a shape of each block in an image using shape determination information for determining a shape of a block that is in accordance with a size and a size of a block set in the image at a time of encoding of the image;
• determining an arrangement of a prediction unit in each block according to the determined shape of each block;
• generating a predicted image for each block using the determined arrangement of a prediction unit and a motion vector acquired for each prediction unit;
• and
• decoding an encoded stream in which the image is encoded, using the generated predicted image.