Inter-layer prediction method for video signal

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.

主权项

1. A method for performing inter-layer prediction by a tangible decoding apparatus when encoding/decoding a video signal, comprising:
confirming, by the decoding apparatus, whether or not at least one macroblock of a field macroblock pair of a base layer is coded in intra mode, the field macroblock pair being two vertically adjacent field macroblocks; predicting, by the decoding apparatus, motion information of a current macroblock pair in an enhanced layer using motion information of an inter-mode macroblock in the field macroblock pair when the confirming confirms that only one of the macroblocks in the field macroblock pair is coded in the intra mode; constructing, by the decoding apparatus, a frame macroblock pair from the field macroblock pair when the confirming confirms that the macroblocks of the field macroblock pair are coded in the intra mode; and obtaining, by the decoding apparatus, texture prediction information of the current macroblock pair using texture information of the constructed frame macroblock pair.