变换

A method is proposed that is based on template match and Radon transform of calculating the affined factors in digital watermarking against geometrical distortion.

针对目前数字水印抗几何攻击方法，提出一种基于模板匹配和Radon变换联合应用的几何变换参数估计方法。

A phase-shifted controlling PWM DC/DC full bridge converter with softswitching is proposed and used to realize a constant current power of20A(5～48V).This full bridge converter utilizes the transformer leakageinductance(or the resonant inductance in series with transformersprimary)and the autoecious capacitance of MOSFET to achieveZVS(Zero-Voltage-Switching),as a result it can decrease the switchingwaste,increase the switching frequency,and diminish the power bulk.

本文使用一种通过移相控制进行脉宽调制的软开关全桥变换器来实现20A(5～48V)恒流源，这种全桥变换器利用变压器的漏感、原边串联谐振电感和功率管的寄生电容来实现开关管的零电压开通，降低了开关损耗，提高了开关频率，减小了电源体积。

In this paper, first we define a kind of transformation on the sequences of Boolean functions, and then analyze the changes of nonlinearity, algebraic degree and balancedness of Boolean functions under the transformation.

本文首先定义了对布尔函数的序列的一种变换，并分析了进行此种变换后布尔函数的非线性度、代数次数与平衡性的变化情况，最终在此基础上提出一种新的递归构造方法，可以构造出非线性度很高的n元m阶n-m-1次弹性函数。

A novel image fusion algorithm based on bandelet transform is proposed.

本文首次在图像融合领域引入bandelet变换，提出基于bandelet变换的图像融合新算法。

Finally, we give the related image fusion evaluation, the results show that fusion effect based on Bandelet transform is better than wavelet transform.

最后介绍了相关的图像融合评价指标，结果显示，基于Bandelet变换的融合效果优于小波变换。

Then we import the image fusion methods based on Wavelet and Bandelet from multiscale image analysis, and introduce their integration framework mode.

然后从图像多尺度分析的角度引入了基于小波变换与Bandelet变换的图像融合方法，具体介绍了它们的融合框架模型。

The wavelet transform suffers from the limitation of poor directional selectivity. To overcome this disadvantage, a novel scheme with joint Contourlet and Bandelet transform is proposed.

针对小波变换方向选择性差的局限，提出了一种基于Contourlet的Bandelet变换。

In this paper,we propose a color image denoising algorithm based on the second generation Bandelet transform to aim at the latest development of the characteristics of the Bandelet transform. The algorithm takes full advantage of the inherent geometry regularity of color images, gets the optimization expression, sets the threshold using noise intensity, and realizes color image denoising using the softthreshold function.

针对目前最新发展的Bandelet变换的特点，本文提出了基于第二代Bandelet变换的彩色图像去噪算法，充分利用彩色图像内在的几何正则性，自适应获得彩色图像的最优表示，通过噪声强度设置阈值，并利用软阈值函数实现彩色图像去噪。

The algorithm reaches effective balance between noise limiting and detail enhancing with Bandelet transform's superiority in presenting the linear singularity and the surface singularity of planar image.

提出了基于Bandelet变换域的图像自适应增强的新算法，利用Bandelet变换在表示二维图像线、面奇异性时的优越性，实现了抑制噪声和凸显细节间的有效均衡。

The practical algorithm of beamlet transform is studied.

本文的算法可以较好地解决这个问题，这是传统的Radon变换和Hough变换所做不到的。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。