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数字减影(DSA:Digital Subtract Angiography)是一种传统的血管可视化技术[1]。这一技术用注射造影剂后的活动图像减去注射造影剂前记录的掩模图像来显示不透明的血管。其期望的结果是在减影后的图像上背景结构被完全消除。(estimation based on background)

PCA又为主成分分析，是一种特征提取方法， 它通过线性变换寻找一组最优的单位正交向量基，用他们的线性组合来重构原样本(PCA and the main component analysis, a feature extraction method, which by finding a set of optimal linear transformation unit orthogonal base vectors, with their linear combination to reconstruct the original sample)

cardoso 的ICA编码，可以用在人脸识别上面(Cardoso ICA coding, can be used in the above Face Recognition)

粒子群K均值聚类算法matlab源代码供大家学习(Particle Swarm K-means clustering algorithm matlab source code)

Add, remove, subtract, attach polynomials

该程序研究了攻角为2度的条件下超音速翼型的气动力特性。(This program studies the aerodynamic characteristics of of supersonic airfoils under an attack angle of 2 degrees .)

说明：  三次样条差值—三弯矩法的仿真，用于数值分析(Cubic spline difference- Three-moment method simulation for numerical analysis)

describe how to perform NDFT algorithm with the sequence

带有gui(图形界面）的钢筋混凝土柱截面配筋及绘图程序。(With a gui (graphical interface) of the reinforcement and reinforced concrete column cross-section drawing program.)

基于4G中802.16m系统的帧结构，通过运用发射分集技术提高其在瑞利信道中初始同步性能。(Based on 4G in the 802.16m system s frame structure, through enhances it using the launch diversity technology in the Rayleigh channel the initial synchronized performance. )