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arXiv · 2212.04330

Improving block-based compensated wavelet lifting by reconstructing unconnected pixels

Wolfgang Schnurrer·Jürgen Seiler·André Kaup
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Abstract

This paper presents a new approach for improving the visual quality of the lowpass band of a compensated wavelet transform. A high quality of the lowpass band is very important as it can then be used as a downscaled version of the original signal. To adapt the transform to the signal, compensation methods can be implemented directly into the transform. We propose an improved inversion of the block-based motion compensation by processing unconnected pixels by a reconstruction method. We obtain a better subjective visual quality while furthermore saving up to 2.6% of bits for lossless coding.

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Wolfgang Schnurrer, Jürgen Seiler, André Kaup. 2022-12-08. Improving block-based compensated wavelet lifting by reconstructing unconnected pixels. https://arxiv.org/abs/2212.04330

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