JPEG压缩算法的核心是“视觉保真”原理，利用人类视觉系统特征进行处理，以达到最大图像数据压缩效果，实际上就是去除那些人眼不易觉察的信息。图像的空间频率对人的视觉至关重要，采用离散余弦变换可将图像分解成一组波，每个波有一个不同的空间频率，这样可以去除人类眼睛觉察不到的信息，而且还可使系统只保留重要的信息。-JPEG compression algorithm is the core of " visual fidelity" principle, the use of the

用ＦＤＴＤ方法计算电磁波在有耗介质中的传播，观察波形的变化。-FDTD method using electromagnetic waves in lossy transmission medium to observe the waveform changes.

基于GPU的水波模拟，使用VC++开发，实现水波的动态流动-based on GPU of water waves simulation,the project was developed by VC++,the water fluid dynamic was complished

using correlation dimension analysis and received good results to some extent. However, a noticeable problem is that seismic waves are signals with a definite frequency bandwidth and the waveforms are affected by all the frequency components