Hierarchical image coding with diamond-shaped subbands

Xiaohui Li; Jie Wang; Peter H. Bauer; Ken D. Sauer

doi:10.1117/12.131366

1 November 1992 Hierarchical image coding with diamond-shaped subbands

Xiaohui Li, Jie Wang, Peter H. Bauer, Ken D. Sauer

Proceedings Volume 1818, Visual Communications and Image Processing '92; (1992) https://doi.org/10.1117/12.131366
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

We present a sub-band image coding/decoding system using a diamond-shaped pyramid frequency decomposition to more closely match visual sensitivities than conventional rectangular bands. Filter banks are composed of simple, low order IIR components. The coder is especially designed to function in a multiple resolution reconstruction setting, in situations such as variable capacity channels or receivers, where images must be reconstructed without the entire pyramid of sub-bands. We use a nonlinear interpolation technique for lost subbands to compensate for loss of aliasing cancellation.

Citation Download Citation

Xiaohui Li, Jie Wang, Peter H. Bauer, and Ken D. Sauer "Hierarchical image coding with diamond-shaped subbands", Proc. SPIE 1818, Visual Communications and Image Processing '92, (1 November 1992); https://doi.org/10.1117/12.131366

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