摘要:
A method for performing inter-layer prediction when encoding/decoding a video signal, includes confirming, by a decoding apparatus, whether or not only one macroblock of a field macroblock pair of a base layer is coded in intra mode, the field macroblock pair is two vertically adjacent field macroblocks. The method further includes predicting motion information of a current macroblock pair in an enhanced layer using motion information of an inter-mode macroblock in the field macroblock pair if the confirming confirms that only one of the macroblocks in the field macroblock pair is coded in the intra mode. A frame macroblock pair is constructed from the field macroblock pair if at least one of the macroblocks the field macroblock pair is coded in the intra mode, and texture prediction information of the current macroblock pair is obtained using texture information of the constructed frame macroblock pair.
摘要:
A method of decoding a video signal is disclosed. The present invention includes obtaining identification information indicating whether a coded picture of a current NAL unit is an inter-view picture group, obtaining interview reference information of the inter-view picture group, and constructing a reference picture list for inter-view prediction using the inter-view reference information according to the identification information, wherein the inter-view reference information includes view identification information of an inter-view reference picture.
摘要:
The present invention provides a method of decoding a video signal. The method includes the steps of obtaining identification information indicating an assignment method of a reference index from the video signal, reordering reference pictures for inter-view prediction according to the identification information, and decoding the video signal using the reordered reference pictures, wherein the reference index includes view information for identifying a view of the reference picture.
摘要:
A method of decoding a video signal is disclosed. The present invention includes obtaining identification information indicating whether a coded picture of a current NAL unit is an inter-view picture group, obtaining interview reference information of the inter-view picture group, and constructing a reference picture list for inter-view prediction using the inter-view reference information according to the identification information, wherein the inter-view reference information includes view identification information of an inter-view reference picture.
摘要:
The present invention relates to a method for conducting interlayer texture prediction in encoding or decoding of video signal. The present method constructs a pair of frame macro blocks from a single field macro block or vertically-adjacent two field macro blocks of a base layer, and using texture information of the constructed pair of frame macro blocks in interlayer texture predication of a pair of frame macro blocks of a current layer.
摘要:
The present invention relates to a method for conducting interlayer motion prediction in encoding or decoding of video signal. The present method sets motion information of an intra-mode macro block of a base layer with motion information of an inter-mode macro block that is vertically adjacent to the intra-mode macro block, derives motion information of a pair of macro blocks adjacent vertically each other from the two macro blocks, and uses the pair of macro blocks in inter-layer motion prediction.
摘要:
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.
摘要:
A method and an apparatus of decoding a video signal are provided. The present invention includes the steps of parsing first coding information indicating whether a residual data of an image block in the enhanced layer is predicted from a corresponding block in the base layer, from the bitstream of the enhanced layer, and decoding the video signal based on the first coding information. And, the step of parsing includes the step of performing modeling the first coding information based on second coding information indicating whether prediction information of the corresponding block in the base layer is used to decode the image block in the enhanced layer. Accordingly, the present invention raises efficiency of video signal processing by enabling a decoder to derive information on a prediction mode of a current block in a decoder instead of transferring the information to the decoder.
摘要:
A method of decoding a video signal is disclosed. The method includes decoding a bit stream of a base layer, obtaining flag information, obtaining information indicating an obtaining position of parameters. The parameters includes at least one of information on a phase shift of a chrominance signal and offset information. The method further includes obtaining the information on the phase shift of the chrominance signal based on the flag information and the information indicating the obtaining position of the parameters, and obtaining the offset information based on the flag information and the information indicating the obtaining position of the parameters. The method further includes up-sampling the picture of the base layer, and decoding a bit stream of an enhanced layer based on the reference picture up-sampled from the picture of the base layer, the information on the phase shift of the chrominance signal and the offset information.
摘要:
Embodiments provide a method and apparatus for decoding/encoding a video signal using inter-layer prediction. The method includes obtaining inter-layer prediction identification information and quality identification information. The method further includes obtaining prediction constraint information based on the inter-layer prediction identification information and the quality identification information. The prediction constraint information indicates whether it is constrained to use an intra-base prediction mode in predicting a current block when a corresponding block covers at least two slices of a base layer. The method further includes decoding a current block by using the intra-base prediction mode when the prediction constraint information indicates it is not constrained to use the intra-base prediction mode in predicting the current block in case that the corresponding block covers at least two slices of the base layer.