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New Forming Scheme of Reference of LL Band for In-Band Video Coding with Spatial Scalability

In this paper, we proposed a new scheme of forming quarter-pixel reference of LL band for in-band video coding with spatial scalability. The recently proposed leaky motion compensation and mode-based temporal filtering methods have reduced the drifting error dramatically. However there still remains drifting error because of the use of high quality reference and the difference between high quality and low quality references. In our method, a new reference is formed which gives PSNR higher than the low quality reference. The new reference is used instead of low quality reference in leaky and mode-based methods and experimental results show that improvement can be achieved in PSNR comparison with the existed ones.