Interpolation of video compression frames

A video image compression system having a sequence of referenceable and bidirectional predicted frames comprising picture regions, in which at least one picture region of at least one bidirectional predicted frame is encoded by interpolation from two or more referenceable frames, where at least one of the two or more referenceable frames is spaced from the bidirectional predicted frame by at least one intervening referenceable frame in display order, and where such at least one picture region is encoded as an unequal weighting of selected picture regions of such at least two or more referenceable frames.

A video image compression system having a sequence of referenceable and bidirectional predicted frames comprising picture regions, in which at least one picture region of at least one bidirectional predicted frame is encoded by interpolation from two or more referenceable frames, where at least one of the two or more referenceable frames is spaced from the bidirectional predicted frame by at least one intervening subsequent referenceable frame in display order.

A video image compression system having a sequence of referenceable and bidirectional predicted frames comprising picture regions, in which at least one picture region of at least one bidirectional predicted frame is encoded as an unequal weighting from selected picture regions of two or more referenceable frames.

A video image compression system having a sequence of predicted and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from two or more predicted frames, and wherein at least one such motion vector is scaled by a frame scale fraction of less than zero or greater than one.

A video image compression system having a sequence of predicted and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from two or more predicted frames, and wherein each such macroblock is determined using an unequal weighting of pixel values corresponding to such two or more predicted frames.

A video image compression system having a sequence of predicted and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from two or more predicted frames, wherein each such macroblock is determined using an unequal weighting of pixel values corresponding to such two or more predicted frames, and wherein the unequal weighting of pixel values includes weights greater than 1.0 or less than zero.

A video image compression system having a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from one or more predicted frames in display order, wherein at least one of such one or more predicted frames is previous in display order to the bidirectional predicted frame, and wherein at least one such motion vector is scaled by a frame scale fraction of less than zero or greater than one.

A video image compression system having a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from one or more predicted frames in display order, wherein at least one of such one or more predicted frames is previous in display order to the bidirectional predicted frame, and wherein each such macroblock is determined using an unequal weighting of pixel values corresponding to such one or more predicted frames.

A video image compression system having a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from one or more predicted frames in display order, wherein at least one of such one or more predicted frames is previous in display order to the bidirectional predicted frame, wherein each such macroblock is determined using an unequal weighting of pixel values corresponding to such one or more predicted frames, and wherein the unequal weighting of pixel values includes weights greater than 1.0 or less than zero.

A video image compression system having a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from one or more predicted frames, wherein at least one of such one or more predicted frames is subsequent in display order to the bidirectional predicted frame and spaced from the bidirectional predicted frame by at least one intervening referenceable frame, and wherein at least one such motion vector is scaled by a frame scale fraction of less than zero or greater than one.

A video image compression system having a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from one or more predicted frames, wherein at least one of such one or more predicted frames is subsequent in display order to the bidirectional predicted frame and spaced from the bidirectional predicted frame by at least one intervening referenceable frame, and wherein each such macroblock is determined using an unequal weighting of pixel values corresponding to such one or more predicted frames.

A video image compression system having a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks, wherein at least one macroblock within a bidirectional predicted frame is determined using direct mode prediction based on motion vectors from one or more predicted frames, wherein at least one of such one or more predicted frames is subsequent in display order to the bidirectional predicted frame and spaced from the bidirectional predicted frame by at least one intervening referenceable frame, wherein each such macroblock is determined using an unequal weighting of pixel values corresponding to such one or more predicted frames, and wherein the unequal weighting of pixel values includes weights greater than 1.0 or less than zero.

A video image compression system having a sequence of referenceable frames comprising pixels arranged in picture regions, in which at least one picture region of at least one predicted frame is encoded by reference to two or more referenceable frames, wherein each such picture region is determined using an unequal weighting of pixel values corresponding to such two or more referenceable frames.

A video image compression system having a sequence of referenceable frames comprising pixels arranged in picture regions, in which at least one picture region of at least one predicted frame is encoded by reference to two or more referenceable frames, wherein each such picture region is determined using an unequal weighting of pixel values corresponding to such two or more referenceable frames, and wherein the unequal weighting of pixel values includes weights greater than 1.0 or less than zero.

A method for video image compression including:

• providing a sequence of referenceable and bidirectional predicted frames comprising picture regions;
• encoding at least one picture region of at least one bidirectional predicted frame by interpolation from two or more referenceable frames, where at least one of the two or more referenceable frames is spaced from the bidirectional predicted frame by at least one intervening subsequent referenceable frame in display order, and where such encoding further includes an unequal weighting of selected picture regions of such at least two or more referenceable frames.

A method for video image compression including:

• providing a sequence of referenceable and bidirectional predicted frames comprising picture regions;
• and
• encoding at least one picture region of at least one bidirectional predicted frame as an unequal weighting from selected picture regions of two or more referenceable frames.

A method for video image compression including:

• providing a sequence of predicted and bidirectional predicted frames each comprising pixel values arranged in macroblocks;
• and
• determining at least one macroblock within a bidirectional predicted frame using direct mode prediction based on motion vectors from two or more predicted frames, wherein at least one such motion vector is scaled by a frame scale fraction of less than zero or greater than one.

A method for video image compression including:

• providing a sequence of predicted and bidirectional predicted frames each comprising pixel values arranged in macroblocks;
• and
• determining at least one macroblock within a bidirectional predicted frame using direct mode prediction based on motion vectors from two or more predicted frames, wherein such determining includes using an unequal weighting of pixel values corresponding to such two or more predicted frames.

A method for video image compression including:

• providing a sequence of predicted and bidirectional predicted frames each comprising pixel values arranged in macroblocks;
• and
• determining at least one macroblock within a bidirectional predicted frame using direct mode prediction based on motion vectors from two or more predicted frames, wherein such determining includes using an unequal weighting of pixel values corresponding to such two or more predicted frames, and wherein the unequal weighting of pixel values includes weights greater than 1.0 or less than zero.

A method for video image compression including:

• providing a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks;
• and
• determining at least one macroblock within a bidirectional predicted frame using direct mode prediction based on motion vectors from one or more predicted frames in display order, wherein at least one of such one or more predicted frames is previous in display order to the bidirectional predicted frame, and wherein at least one such motion vector is scaled by a frame scale fraction of less than zero or greater than one.

A method for video image compression including:

• providing a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks;
• and
• determining at least one macroblock within a bidirectional predicted frame using direct mode prediction based on motion vectors from one or more predicted frames in display order, wherein at least one of such one or more predicted frames is previous in display order to the bidirectional predicted frame, and wherein such determining includes using an unequal weighting of pixel values corresponding to such one or more predicted frames.

A method for video image compression including:

• providing a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks;
• and
• determining at least one macroblock within a bidirectional predicted frame using direct mode prediction based on motion vectors from one or more predicted frames, wherein at least one of such one or more predicted frames is subsequent in display order to the bidirectional predicted frame and spaced from the bidirectional predicted frame by at least one intervening referenceable frame, and wherein at least one such motion vector is scaled by a frame scale fraction of less than zero or greater than one.

A method for video image compression including:

• providing a sequence of referenceable and bidirectional predicted frames each comprising pixel values arranged in macroblocks;
• and
• determining at least one macroblock within a bidirectional predicted frame using direct mode prediction based on motion vectors from one or more predicted frames, wherein at least one of such one or more predicted frames is subsequent in display order to the bidirectional predicted frame and spaced from the bidirectional predicted frame by at least one intervening referenceable frame, and wherein such determining includes using an unequal weighting of pixel values corresponding to such one or more predicted frames.

A method for video image compression including:

• providing a sequence of referenceable frames spaced by at least one bidirectional predicted frames, wherein the number of such bidirectional predicted frames varies in such sequence;
• and
• determining at least one picture region of at least one such bidirectional predicted frame using an unequal weighting of pixel values corresponding to at least two referenceable frames.

A method for video image compression including:

• providing a sequence of frames encoded by a coder for decoding by a decoder, wherein at least one picture region of at least one frame is based on weighted interpolations of two or more other frames, such weighted interpolations being based on at least one set of weights available to the coder and a decoder;
• and
• communicating a designation for a selected one of such at least one set of weights to a decoder from the coder to select one or more currently active weights.

A method for video image compression including:

• providing a sequence of referenceable frames comprising pixels arranged in picture regions;
• and
• encoding at least one picture region of at least one predicted frame by reference to two or more referenceable frames using an unequal weighting of pixel values corresponding to such two or more referenceable frames, and wherein the unequal weighting of pixel values includes weights greater than 1.0 or less than zero.

A computer program product, encoded on a computer-readable medium, operable to cause data processing apparatus to perform operations comprising:

• processing a sequence of referenceable and bidirectional predicted frames comprising picture regions, wherein the processing comprises:
• encoding at least one picture region of at least one bidirectional predicted frame as an unequal weighting of selected picture regions from two or more referenceable frames.

A computer program product, encoded on a computer-readable medium, operable to cause data processing apparatus to perform operations comprising:

• processing a sequence of referenceable and bidirectional predicted frames comprising picture regions, wherein the processing comprises:
• encoding at least one picture region of at least one bidirectional predicted frame by interpolation from two or more referenceable frames, wherein at least one of the two or more referenceable frames is spaced from the bidirectional predicted frame by at least one intervening subsequent referenceable frame in display order, and wherein the encoding comprises encoding said at least one picture region as an unequal weighting of selected picture regions of said at least two or more referenceable frames.