变换点

The combined approach can deal with local shading of virtual light sources, but the global shading must be further researched.

总结本论文的主要学术贡献为以下几点：在深入分析单视图3D warp变换和多视图变换合成的基础上，提出一个基于采样的场景简洁表示和快速绘制方法。

Finally, a fine estimation can be acquired by the combination of estimation results from both Hough transform and major axis extraction.

在此基础上，基于Hough变换检测目标轮廓的直边，基于轮廓特征点检测获得目标主轴的大致方向，结合Hough变换检测结果与目标主轴信息获得最终的方位角估计。

The LM Algorithm is used in parametric automatic optimization of the transformation matrix in Image Mosaic. After parametric automatic optimization of corresponding points, the transformation matrix is quickly got, and then the image mosaic is realized.

将LM算法应用于图像拼接过程中变换矩阵的参数自动优化中，通过对多个对应点的自动优化后，可以较快得到变换矩阵，从而实现图像拼接。

Based on the clustering characteristic of rigid transformations computed from each correspondence point pair, the PV method is proposed to estimate initial rigid transformation.

根据从对应点组计算的刚体变换的聚类特性，提出PV方法来估计刚体变换的初值。

The selected image salient features are used to compute geometric transformation parameter of watermarked images. After recovering the size and aspect of watermarked images, the watermark detector is synchronized with embedded watermark. Thus the watermark detector can detect the watermark.

利用提取的图像固有特征点估计水印化图像几何变换参数，恢复经几何变换的水印化图像，同步水印检测器与图像中嵌入的水印信号，使水印检测有效检测嵌入的水印信号。

We obtain the eigenfunction through inverse transform,and select appropriate threshold to extract iso-surface.We append the weighted coefficients on sampling density for non-uniform sampling to further compute rational thresholds.

调用快速傅立叶变换FFTW(The Fastest Fourier Transform in the West)软件包，根据点的位置和法向量计算傅立叶系数，通过逆变换求出特征函数，选择合适的阈值提取表面的等值面，对于非均匀采样通过采样密度的加权系数进一步计算合理的阈值。

A new scheme named cancelable fuzzy vault was proposed to overcome this shortcoming, which generated different vaults from different cancelable templates instead of the origin template.

提出了一种使用基于指纹细节点的可撤销的变换模板作为生成vault的模板，保护不同密钥时采用不同变换模板，从而解决了这个问题。

In this paper, we define quadratic spline as wavelet, do the two dimentional dyadic wavelet transform on near-infrared galactophore image, and get local modulus maxima from wavelet transforms results----rnodulus and angles, so we can find the blood vessel edge image in each scales, at last, we compute a good edge image which synthesize the characters in each scale.

本文中用二次样条小波作为小波基函数，对乳腺近红外图像进行二维二进小波变换，计算小波变换结果的局部模极大值点，得到各个尺度下的乳腺近红外图像血管的边缘，最后得到综合了各个尺度特征的较好的血管图像的边缘。

The ground-state energy and the average number of virtual phonons around the electron of a hydrogenic impurity confined in a parabolic quantum dot are calculated using the squeezed-state variational approach,which is based on two successive canonical transformations and uses a displaced-oscillator type unitary transformation to deal with the bilinear terms,which are usually neglected.

李伟萍 内蒙古赤峰学院物理与电子信息工程系，赤峰 024000肖景林内蒙古民族大学物理与电子信息学院，通辽 028043采用基于逐次正则变换的变分方法，利用单模压缩态变换处理包含声子产生湮灭算符的双线性项，研究了抛物量子点中束缚极化子的性质。

In this method the initial values of perspective projective matrix; rotative matrix and translative matrix are calculated from the fundamental matrix, than these matrices are optimized based on the coordinate value of corresponding points.

该方法从基本矩阵计算初始透视投影、旋转和竖直平移变换矩阵，然后以对应点坐标为基础对这些变换矩阵进行优化计算，从而有效地避免了优化计算的局部最小值，而且不过分依赖基本矩阵的计算精度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。