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JPEG2000 still image coding quality

机译:JPEG2000静止图像编码质量

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摘要

This work demonstrates the image qualities between two popular JPEG2000 programs. Two medical image compression algorithms are both coded using JPEG2000, but they are different regarding the interface, convenience, speed of computation, and their characteristic options influenced by the encoder, quantization, tiling, etc. The differences in image quality and compression ratio are also affected by the modality and compression algorithm implementation. Do they provide the same quality? The qualities of compressed medical images from two image compression programs named Apollo and JJ2000 were evaluated extensively using objective metrics. These algorithms were applied to three medical image modalities at various compression ratios ranging from 10:1 to 100:1. Following that, the quality of the reconstructed images was evaluated using five objective metrics. The Spearman rank correlation coefficients were measured under every metric in the two programs. We found that JJ2000 and Apollo exhibited indistinguishable image quality for all images evaluated using the above five metrics (r > 0.98, p < 0.001). It can be concluded that the image quality of the JJ2000 and Apollo algorithms is statistically equivalent for medical image compression.
机译:这项工作演示了两个流行的JPEG2000程序之间的图像质量。两种医学图像压缩算法都使用JPEG2000进行编码,但是在接口,便利性,计算速度以及受编码器,量化,平铺等因素影响的特征选项方面有所不同。图像质量和压缩率的差异也很大受模态和压缩算法实现的影响。它们提供相同的质量吗?使用客观指标对来自两个名为Apollo和JJ2000的图像压缩程序的压缩医学图像的质量进行了广泛的评估。这些算法以10:1到100:1的不同压缩率应用于三种医学图像模态。随后,使用五个客观指标评估了重建图像的质量。在两个程序中的每个度量标准下测量Spearman等级相关系数。我们发现,对于使用上述五个指标评估的所有图像,JJ2000和Apollo均显示出难以区分的图像质量(r> 0.98,p <0.001)。可以得出结论,对于医学图像压缩,JJ2000和Apollo算法的图像质量在统计上是等效的。

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