PICTURE ENCODING METHOD, PICTURE DECODING METHOD, PICTURE ENCODING APPARATUS, PICTURE DECODING APPARATUS, PICTURE ENCODING PROGRAM, PICTURE DECODING PROGRAM AND RECORDING MEDIUM

摘要

An picture encoding method includes steps of converting a reference depth map into a virtual depth map that is a depth map of an object photographed in a target picture, generating a depth value of an occlusion region in which there is no depth value in the reference depth map generated by an anteroposterior relationship of the object by assigning a depth value of which a correspondence relationship with a region on the same object as an object shielded in the reference picture is obtained to the occlusion region, and performing picture prediction between views by generating a disparity-compensated picture for the encoding target picture from the virtual depth map and the reference picture after the depth value of the occlusion region is generated.

主权项

1. A picture encoding method for performing encoding a multiview picture which includes pictures for a plurality of views while predicting a picture between the views using an encoded reference picture for a view different from a view of an encoding target picture and a reference depth map that is a depth map of an object in the reference picture, the method comprising:
a depth map conversion step of converting the reference depth map into a virtual depth map that is a depth map of the object in the encoding target picture; an occlusion region depth generation step of generating a depth value of an occlusion region in which there is no depth value assigned in the reference depth map generated by an anteroposterior relationship of the object by assigning a depth value of which a correspondence relationship with a region on the same object as the object shielded in the reference picture is obtained to the occlusion region; and an inter-view picture prediction step of performing picture prediction between the views by generating a disparity-compensated picture for the encoding target picture from the virtual depth map and the reference picture after the depth value of the occlusion region is generated.