摘要:
In one embodiment, the method for decoding a video signal using inter layer prediction includes obtaining a residual signal of a corresponding block in a base layer from a base layer bitstream, scaling the residual signal of the corresponding block in the base layer, obtaining a residual signal of a current block in an enhanced layer from an enhanced layer bitstream, obtaining a prediction pixel value of the current block in the enhanced layer based on an intra prediction mode of the corresponding block in the base layer and a pixel value of a neighboring block in the enhanced layer, and reconstructing the current block by using the prediction pixel value of the current block, the residual signal of the current block.
摘要:
A method for decoding/encoding a video signal using an inter-layer prediction process is disclosed. The method for decoding a video signal including several layer information includes: a) acquiring a first prediction signal for a current block of an enhancement layer and a residual signal based on at least a base layer block; b) smoothing the sum of the first prediction signal and the residual signal, and generating a second prediction signal for the current block; and c) reconstructing the current block based on the second prediction signal, wherein the step a) for generating the first prediction signal is based on prediction mode information of at least the current block. Therefore, the method for decoding/encoding a video signal uses a variety of inter layer prediction methods according to the macroblock types of macroblocks of the current and base layers, and removes inter layer redundancy, resulting in increased coding efficiency.
摘要:
A method for efficiently decoding a video signal is disclosed. The method for decoding a video signal based on fine granularity scalability (FGS) includes obtaining a first reference picture from a reference picture list, decoding a current block using the first reference picture, wherein the first reference picture and a second reference picture corresponding thereto have the same picture identification information and are distinguished from each other by another identification information. Accordingly, it is possible to minimize a problem caused in a procedure for decoding a video signal due to transmission error.
摘要:
A method for efficiently decoding a video signal is disclosed. The method for decoding a video signal based on fine granularity scalability (FGS) includes obtaining a first reference picture from a reference picture list, decoding a current block using the first reference picture, wherein the first reference picture and a second reference picture corresponding thereto have the same picture identification information and are distinguished from each other by another identification information. Accordingly, it is possible to minimize a problem caused in a procedure for decoding a video signal due to transmission error.
摘要:
Disclosed herein is a method of encoding video signals. The method includes creating a bit stream of a first layer by encoding the video signals, and creating a bit stream of a second layer by encoding the video signals based on the first layer. When residual data, corresponding to an image difference, within the first layer, is up-sampled and used for the encoding of the second layer, the residual data is up-sampled for each block that is predicted based on motion compensation.
摘要:
A method for efficiently decoding a video signal is disclosed. The method for decoding a video signal based on fine granularity scalability (FGS) includes acquiring picture identification information indicating a reference picture of a current block, and decoding the current block using the reference picture. A base layer reference picture and an enhanced layer reference picture corresponding thereto have the same picture identification information. Accordingly, it is possible to minimize a problem caused in a procedure for decoding a video signal due to transmission error.
摘要:
A method for managing a reference picture with a decoder is disclosed. The method for managing a reference picture includes storing a decoded picture including quality base picture and quality enhanced picture in a buffer, marking the quality base picture and the quality enhanced picture as a reference picture, marking the quality base picture as distinct information, managing the quality base picture and the quality enhanced picture using an adaptive memory management method or a sliding window method.
摘要:
A method for context modeling of coding information of a video signal for compressing or decompressing the coding information is provided. An initial value of a function for probability coding of coding information of a video signal of an enhanced layer is determined based on coding information of a corresponding video signal of a base layer.
摘要:
A method for decoding/encoding a video signal using an inter layer prediction process is disclosed. The method for decoding a video signal including several layer information includes: a) acquiring a first prediction signal for a current block of an enhancement layer and a residual signal based on at least a base layer block; b) smoothing the sum of the first prediction signal and the residual signal, and generating a second prediction signal for the current block; and c) reconstructing the current block based on the second prediction signal. Therefore, the method for decoding/encoding a video signal uses a variety of inter layer prediction methods according to the macroblock type of macroblocks of the current and base layers, and removes inter layer redundancy, resulting in increased coding efficiency.
摘要:
Disclosed herein is a method of encoding video signals. The method includes creating a bit stream of a first layer by encoding the video signals, and creating a bit stream of a second layer by encoding the video signals based on the first layer. When residual data, corresponding to an image difference, within the first layer, is up-sampled and used for the encoding of the second layer, the residual data is up-sampled for each block that is predicted based on motion compensation.