指出了图像的压缩率与重构图像的失真率存在一定的关联。

There is certain connection between the compression rate of image and the distortion rate of image reconstruction.

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基于物理真实的有损压缩往往伴随有VOP结构形变，导致重构图像质量下降。

The physical validity based lossy compression algorithms are usually accompanied with VOP structural distortion, leading to the degradation of the reconstructed image quality.

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目前，大部分PIT技术未能充分考虑人眼视觉特性，只注重重构图像的客观质量。

At present, only the objective quality of the reconstructed image rather than the characteristic of human sight is considered with most of the existing PIT techniques.

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