Abstract: In one embodiment of a method of decoding a first frame sequence layer, at least one motion vector of an image block in a frame of the first frame sequence layer is determined based on a motion vector for an image block in a frame of a second frame sequence layer. Here, the frame of the second frame sequence layer is temporally separated from the frame of the first frame sequence layer. The image block in the frame of the first frame sequence layer is decoded based on the determined motion vector.

Abstract: In one embodiment of a method of decoding a first frame sequence layer, at least one motion vector of an image block in a frame of the first frame sequence layer is determined based on scaling a motion vector for an image block in a frame of a second frame sequence layer. The motion vector for the image block in the frame of the second frame sequence layer is scaled based on a display size difference between frames in the second frame sequence layer and frames in the first frame sequence layer. A display size of frames in the second frame sequence layer is different than a display size of frames in the first frame sequence layer, and the second frame sequence layer does not include a frame temporally coincident with the frame of the first frame sequence layer. The image block in the frame of the first frame sequence layer is decoded based on the determined motion vector.

Abstract: In one embodiment of a method of decoding a first frame sequence layer, at least one motion vector of an image block in a frame of the first frame sequence layer is determined based on a motion vector for an image block in a frame of a second frame sequence layer and a temporal difference between the frame in the second frame sequence layer and the frame in the first frame sequence layer. Here, the second frame sequence layer does not include a frame temporally coincident with the frame of the first frame sequence layer. The image block in the frame of the first frame sequence layer is decoded based on the determined motion vector.

Abstract: In one embodiment of a method of decoding a first frame sequence layer, at least one motion vector of an image block in a frame of the first frame sequence layer is determined based on a motion vector for an image block in a frame of a second frame sequence layer, a first derivation factor and a second derivation factor. The first derivation factor is based on a temporal difference between the frame in the second frame sequence layer and the frame in the first frame sequence layer. The second derivation factor is based on a display size difference between frames in the first frame sequence layer and frames in the second frame sequence layer. The second frame sequence layer does not include a frame temporally coincident with the frame of the first frame sequence layer. The image block in the frame of the first frame sequence layer is decoded based on the determined motion vector.

Abstract: In one embodiment, the method includes predicting at least a portion of a current image in a current layer based on at least an intra-coded portion of a base image in a base layer, a reference image, shift information for samples in the predicted current image, and offset information indicating a position offset between at least one boundary pixel of the reference image and at least one boundary pixel of the current image.

Abstract: In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least a portion of a base image in a base layer and shift information for samples in the predicted current image.

Abstract: In the method for decoding a video signal, at least a portion of a current image in a current layer is predicted based on at least a portion of a reference image and offset information. The offset information may indicate a position offset between at least one boundary pixel of the reference image and at least one boundary pixel of the current image.

Abstract: In the method for decoding a video signal, at least a portion of a current image in a current layer is predicted based on at least a portion of a reference image, offset information and dimension information. The offset information may indicate a position offset between at least one boundary pixel of the reference image and at least one boundary pixel of the current image, and the dimension information may indicate at least one dimension of the current image.

Abstract: In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least a residual coded portion of a base image in a base layer and shift information for samples in the predicted current image.

Abstract: In one embodiment, decoding of a video sigal includes predicting at least a portion of a current image in a current layer based on at least a portion of a base image in a base layer and offset information. The offset information indicates an offset based on at least one pixel in the current image and a corresponding at least one pixel in the base image. For example, the offset information may represent a position offset between at least one sample in the current image and at least one sample in an up-sampled portion of the base image.

Abstract: In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least an intra-coded portion of a base image in a base layer and shift information for samples in the predicted current image.

Abstract: In one embodiment, decoding of a video signal includes predicting at least a portion of a current image in a current layer based on at least a portion of a base image in a base layer and shift information for samples in the predicted current image.

Abstract: The present invention provides an adaptive intra-macroblock refresh method, by which an intra-macroblock refresh technology is applied in a manner of considering an error recovering method of a decoder. The present invention includes the steps of measuring a correlation between a motion vector of a currently encoded macroblock and a motion vector of a neighbor macroblock, recording a measurement result of the correlation in a refresh map by block unit, and performing encoding using the refresh map.

Abstract: A method for controlling a bit rate of an image is provided. The method comprises analyzing a motion level of the inputted image; classifying the inputted image into a picture category according to the image's number of intra-blocks; and controlling the image's bit rate by allocating a first quantization parameter value to an input frame when the inputted image is classified as a motion picture.