23 June 2003 Adaptive overcomplete wavelet video coding with spatial transcaling
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Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.502837
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland
Abstract
The unprecedented increase in the level of heterogeneity of emerging wireless networks and the mobile Internet emphasizes the need for scalable and adaptive video solutions both for coding and transmission purposes. However, in general, there is an inherent tradeoff between the level of scalability (e.g., in terms of bitrate range, levels of spatial resolutions, and/or levels of temporal resolutions) and the video-coding penalty incurred by such scalable video schemes as compared to non-scalable coders. In other words, the higher the level of scalability, the lower the overall video quality of the scalable stream that is needed to support the desired scalability level. In [1][2][3], we introduced the notion of TranScaling, which is a generalization of (non-scalable) transcoding. With TranScaling, a scalable video stream covering a given bandwidth range, is mapped into one or more scalable video streams covering different bandwidth ranges. In this paper, we illustrate the benefits of Spatial TranScaling in the context of a recently developed scalable and adaptive inband motion compensated temporal filtering scheme (IBMCTF) [4][5]. We show how using TranScaling, the already high coding efficiency performance of such adaptive IBMCTF schemes can be further improved.
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Mihaela van der Schaar, Jong Chul Ye, Hayder Radha, "Adaptive overcomplete wavelet video coding with spatial transcaling", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.502837; https://doi.org/10.1117/12.502837
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