Directional filtering for upsampling according to direction information of the base layer in the JVT/SVC codec

  • Authors:
  • Chul Keun Kim;Doug Young Suh;Gwang Hoon Park

  • Affiliations:
  • Media Laboratory, Kyunghee Univ. Seochunri, Giheungeuop, Younginsi, Kyungido, Korea;Media Laboratory, Kyunghee Univ. Seochunri, Giheungeuop, Younginsi, Kyungido, Korea;Media Laboratory, Kyunghee Univ. Seochunri, Giheungeuop, Younginsi, Kyungido, Korea

  • Venue:
  • ACIVS'06 Proceedings of the 8th international conference on Advanced Concepts For Intelligent Vision Systems
  • Year:
  • 2006

Quantified Score

Hi-index 0.02

Visualization

Abstract

When the reconstructed image of the base layer is up-sampled for decoding the enhancement layer of spatial scalability, direction information derived during decoding the spatially lower layer is used. That is direction information used for Intra prediction which is used for up-sampling again. In most cases, it shows 0.1-0.5dB quality improvement in images up-sampled by using directional filtering compared to those up-sampled conventionally. The same interpolation algorithm should be used in both the encoder and decoder.