改进的n位到n位可逆类哈尔变换

12th Pacific Conference on Computer Graphics and Applications, 2004. PG 2004. Proceedings. Pub Date : 2004-10-06 DOI:10.1109/PCCGA.2004.1348368

J. Senecal, Peter Lindstrom, M. Duchaineau, K. Joy

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引用次数: 11

摘要

我们介绍了分段线性Haar (PLHaar)变换，这是一种基于Haar小波变换的可逆n-bit到n-bit变换。PLHaar是连续的，而所有当前的n-bit到n-bit的方法都不是连续的，因此在有损和无损方法(例如图像压缩)中都是唯一可用的。PLHaar有整数和连续(即非离散)形式。通过将系数保持在n位，PLHaar特别适合在信道宽度有限的硬件环境中使用，例如数字视频信道和图形硬件。

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An improved N-bit to N-bit reversible Haar-like transform

We introduce the piecewise-linear Haar (PLHaar) transform, a reversible n-bit to n-bit transform that is based on the Haar wavelet transform. PLHaar is continuous, while all current n-bit to n-bit methods are not, and is therefore uniquely usable with both lossy and lossless methods (e.g. image compression). PLHaar has both integer and continuous (i.e. non-discrete) forms. By keeping the coefficients to n bits PLHaar is particularly suited for use in hardware environments where channel width is limited, such as digital video channels and graphics hardware.

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12th Pacific Conference on Computer Graphics and Applications, 2004. PG 2004. Proceedings.

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