Novel video coding scheme using adaptive mesh-based interpolation and node tracking

Eckhart Baum; Joachim Speidel

doi:10.1117/12.386635

30 May 2000 Novel video coding scheme using adaptive mesh-based interpolation and node tracking

Eckhart Baum, Joachim Speidel

Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000) https://doi.org/10.1117/12.386635
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia

Abstract

An alternative method to H.263 for encoding of moving images at bit rates below 64 kbit/s is presented using adaptive spatial subsampling, mesh based interpolation and node tracking. This is why we call this new coding algorithm Mesh Based Interpolative Coding. Data compression is achieved by representing the image content by a number of non- equidistant sampling points (nodes) for luminance and color difference signals. The decoder reconstructs the image by interpolating the transmitted sampling points. For a given number of nodes which corresponds approximately to the total bit rate, the coder generates the node positions by minimizing the mean square error between the original picture and the interpolated picture. For moving images, each node is associated with a motion vector for node tracking. Simulation results of a complete encoder and decoder show that this method can provide lower bit rates than conventional schemes at a given picture quality for sequences with moderate movement.

Citation Download Citation

Eckhart Baum and Joachim Speidel "Novel video coding scheme using adaptive mesh-based interpolation and node tracking", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000); https://doi.org/10.1117/12.386635

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