Temporally scalable video coding using nonlinear deinterlacing

Abstract

Summary form only given. Although a simple solution to multi-resolution video coding is the simulcast technique, in which each resolution of multi-resolution video is coded independently, a more efficient method is scalable coding. In scalable video coding, the lower resolution reproduction of the video is used in coding the higher resolution video. Temporal scalability is a tool intended for use in a range of applications, such as broadcasting of interlaced TV and progressive HDTV, for which migration to higher temporal resolution is necessary. Based on the simulation results with an MPEG-2 video encoder, it is observed that scalable coding with nonlinear interpolation achieves a 2-3 dB PSNR improvement over the simulcast coding at the same total bit-rate. However, for progressive input: interlace-to-interlace type temporal scalability, the scalable coding performance is lower than that of single layer progressive coding. This is expected as the coding performance decreases in interlaced coding due to the difficulty of motion estimation in interlaced sequences.