Method and device for generating predicted pictures

A device for generating a predicted picture, comprising:

• a reference rectangular block of pixels determination module, configured to determine a reference rectangular block of pixels by shifting or warping a parameter information, wherein the parameter information comprises a location of a target rectangular block of pixels, or the parameter information comprises a location of a target rectangular block of pixels and depth information of a reference view;
• a mapping module, configured to map the reference rectangular block of pixels to a target view by means of the depth information of the reference view to obtain a projected rectangular block of pixels;
• and
• a predicted picture acquisition module, configured to acquire a predicted picture block from the projected rectangular block of pixels;
• wherein the reference rectangular block of pixels determination module comprises:
• a first determination unit, configured to determine a first set of boundary values of the reference rectangular block of pixels by shifting or warping the location of the target rectangular block of pixels when the parameter information comprises the location of the target rectangular block of pixels and the depth information of the reference view;
• an update unit, configured to update the first set of boundary values according to the depth information of the reference view, and take results obtained after the update as a second set of boundary values of the reference rectangular block of pixels, wherein the area of the reference rectangular block of pixels corresponding to the second set of boundary values is no larger than the area of the reference rectangular block of pixels corresponding to the first set of boundary values;
• and
• a second determination unit, configured to determine the reference rectangular block of pixels in the reference view according to the second set of boundary values;
• wherein the first determination unit comprises:
• a left boundary value determination sub-unit, configured to take a value which is obtained after subtracting a third predetermined offset value from the left boundary value of the target rectangular block of pixels as a left boundary value in the first set of boundary values of the reference rectangular block of pixels;
• a right boundary value determination sub-unit, configured to take a value which is obtained after subtracting a fourth predetermined offset value from the right boundary value of the target rectangular block of pixels as a right boundary value in the first set of boundary values of the reference rectangular block of pixels;
• an upper boundary value determination sub-unit, configured to take the upper boundary value of the target rectangular block of pixels as an upper boundary value of the first set of boundary values;
• and
• a lower boundary value determination sub-unit, configured to take the lower boundary value of the target rectangular block of pixels as a lower boundary value of the first set of boundary values.