The basic imaging theory, signal model and its proceeding method of SAR are then analyzed.
对SAR的基本成像原理、信号的基本模型及成像处理方法进行了分析。
When modeling, it is proposed that local camera is ideal linear, used pinhole imaging theory to model, don't consider its distortion.
在建模时，认为前景摄像头是理想的线性镜头，不考虑其畸变，运用针孔成像原理进行建模。
A 3-d face model is constructed by the imaging theory and spherical harmonics, combining with the principle of 3-d projection and PCA.
根据3 - D数据的优势，利用图像成像原理和球面调和函数理论，结合3 - D投影原理和PC A技术建立了一个3 - D人脸模型。
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