基于边缘模型重建的数字图像后处理算法可以改善高倍压缩图像的主观和客观质量。
The subjective and objective quality of decompressed images can be improved by digital image post-processing algorithms of model-based edge.
目的：寻求连续CT断层图像重建上颈椎运动节段数字模型及三维可视化的方法。
Objective: To establish a digital model for reconstruction and three-dimensional visualization of upper cervical spinal motion segment from ct images.
作为数字城市三维重建的重要信息来源，CCD图像中的关键目标区域提取是一个十分重要的课题。
As one of the important information resources in 3d reconstruction of digital city, primary objects 'regional extraction from urban CCD images is vital very much.
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