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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针对长大跨海大桥形变监测的困难性，提出了跨海大桥结构形变监测的动态基站自动监测技术，动态基站自动监测技术的核心是电子全站仪与GPS - RTK技术的有机集成。

The dynamic base-station monitoring technique of structural deformation of sea-crossing Bridges is put forward to overcome the difficulty. The new way USES the integrated technique of ETS and GPS-RTK.

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