Image compression systems that exploit the properties of the human visual system have been studied extensively over the past few decades. For the JPEG2000 image compression standard, all previous methods that aim to optimize perceptual quality have considered the irreversible pipeline of the standard. In this work, we propose an approach for the reversible pipeline of the JPEG2000 standard. We introduce a new methodology to measure visibility of quantization errors when reversible color and wavelet transforms are employed. Incorporation of the visibility thresholds using this methodology into a JPEG2000 encoder enables creation of scalable codestreams that can provide both near-threshold and numerically lossless representations, which is desirable in applications where restoration of original image samples is required. Most importantly, this is the first work that quantifies the bitrate penalty incurred by the reversible transforms in near-threshold image compression compared to the irreversible transforms.

中文翻译：

---

可逆 JPEG2000 中量化误差的可见性。


在过去的几十年里，人们对利用人类视觉系统特性的图像压缩系统进行了广泛的研究。对于JPEG2000图像压缩标准，之前所有旨在优化感知质量的方法都考虑了该标准的不可逆管道。在这项工作中，我们提出了一种用于 JPEG2000 标准的可逆管道的方法。我们引入了一种新的方法来测量采用可逆颜色和小波变换时量化误差的可见性。使用此方法将可见性阈值合并到 JPEG2000 编码器中，可以创建可扩展的码流，该码流可以提供近阈值和数字无损表示，这在需要恢复原始图像样本的应用中是理想的。最重要的是，这是第一个量化近阈值图像压缩中可逆变换与不可逆变换相比所产生的比特率损失的工作。