DEVICE AND METHOD FOR SCALABLE VIDEO ENCODING CONSIDERING MEMORY BANDWIDTH AND COMPUTATIONAL QUANTITY, AND DEVICE AND METHOD FOR SCALABLE VIDEO DECODING

摘要

Provided are scalable video encoding and decoding methods for optimization of a memory bandwidth and a computational quantity when inter-layer prediction is performed.;The scalable video encoding method includes determining a reference layer image from among base layer images so as to perform inter-layer prediction on an enhancement layer image, determining, using the enhancement layer image, not to perform inter prediction on enhancement layer images when an upsampled reference layer image is determined by performing inter-layer (IL) interpolation filtering on the reference layer image, and encoding a residue component between the upsampled reference layer image and the enhancement layer image.

主权项

1. A scalable video encoding method comprising:
determining a reference layer image from among base layer images so as to perform inter-layer prediction on an enhancement layer image; generating an upsampled reference layer image by performing inter-layer (IL) interpolation filtering on the determined reference layer image; and when the upsampled reference layer image is determined via the IL interpolation filtering, determining, using the enhancement layer image, not to perform inter prediction on enhancement layer images, and encoding a residue component between the upsampled reference layer image and the enhancement layer image.