Energy preserving QMF for image processing.

Lian, Jian-ao; Wang, Yonghui · IEEE Trans Image Process · 2014

basic_science · Level V

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Abstract

Implementation of new biorthogonal filter banks (BFB) for image compression and denoising is performed, using test images with diversified characteristics. These new BFB’s are linear-phase, have odd lengths, and with a critical feature, namely, the filters preserve signal energy very well. Experimental results show that the proposed filter banks demonstrate promising performance improvement over the filter banks of those widely used in the image processing area, such as the CDF 9/7.