New Context of Compression Problem and Approach to Solution: A Survey of the literature

The new generation multimedia applications such as Ultra High Definition TV, 3D Video and Cloud Storage keeps the compression research relevant even post to the advent of the state-of-art standard HEVC codec. The continued studies on human visual system suggest that a perceptually acceptable reconstruction with reduced bandwidth requirements may be more acceptable and commercially viable solution rather than a bit accurate reconstruction for a variety of video and graphics applications. One way to achieve compression beyond that achieved by the advanced codec like HEVC, is to sample the input data at a lower rate than the Nyquist rate, exploit the sparsity and perceptual redundancy in the content using advanced signal processing and computer vision tools and represents it using a spatio-temporal model. This paper contains an exhaustive review of the new context of video compression methods along with their limitations and open issues.