Picture encoding and/or decoding apparatus and method for providing scalability of a video object whose position changes with time and a recording medium having the same recorded thereon

A method for encoding data of one or more pictures in which the pictures of two or more layers may represent an I-picture obtained by intra-coding, a P-picture obtained by intra-coding or forward predictive coding, and a B-picture obtained by intra-coding, forward predictive coding, backward predictive coding, or bidirectionally predictive coding, and are encoded on a macro-block basis, wherein a macro-block of the B-picture is a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is a skip macro-block and wherein a macro-block of the B-picture is not a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is not a skip macro-block.

A picture decoding device for decoding encoded data of one or more pictures in which the pictures of two or more layers may represent an I-picture obtained by intra-coding, a P-picture obtained by intra-coding or forward predictive coding, and a B-picture obtained by intra-coding, forward predictive coding, backward predictive coding, or bidirectionally predictive coding, and decoding the pictures on a macro-block basis, wherein a macro-block of the B-picture is a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is a skip macro-block and wherein a macro-block of the B-picture is not a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is not a skip macro-block.

A picture decoding method for decoding encoded data of one or more pictures in which the pictures of two or more layers may represent an I-picture obtained by intra-coding, a P-picture obtained by intra-coding or forward predictive coding, and a B-picture obtained by intra-coding, forward predictive coding, backward predictive coding, or bidirectionally predictive coding, and decoding the pictures on a macro-block basis, wherein a macro-block of the B-picture is a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is a skip macro-block and wherein a macro-block of the B-picture is not a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is not a skip macro-block.

A recording medium having recorded thereon encoded data of one or more pictures in which the pictures of two or more layers may represent an I-picture obtained by intra-coding, a P-picture obtained by intra-coding or forward predictive coding, and a B-picture obtained by intra-coding, forward predictive coding, backward predictive coding, or bidirectionally predictive coding, in which the picture data is encoded on a macro-block basis, wherein a macro-block of the B-picture is a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is a skip macro-block and wherein a macro-block of the B-picture is not a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is not a skip macro-block.

A recording method for recording encoded data of one or more pictures in which the pictures of two or more layers may represent an I-picture obtained by intra-coding, a P-picture obtained by intra-coding or forward predictive coding and a B-picture obtained by intra-coding, forward predictive coding, backward predictive coding, or bidirectionally predictive coding, in which the picture data is encoded on a macro-block basis, wherein a macro-block of the B-picture is a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is a skip macro-block and wherein a macro-block of the B-picture is not a skip macro-block if, of the macro-blocks constituting an I- or P-picture decoded directly previous to decoding the macro-block of the B-picture, the one corresponding to the macro-block of said B-picture is not a skip macro-block.