图形的交互式编辑部分主要研究了图元的拾取算法和使用变换矩阵实现对图元的旋转、比例缩放和平移等二维变换。
As for the interactive graphic editing, the article mainly focuses on graphic element collect algorithm and two-dimension transformation such as rotation, scale and translation using convert matrix.
系统使用CCD获取原始数字图像数据，采用快速算法实现了核心的二维DCT变换，经过编码后，在一个16位定点DSP上实现了快速图像压缩。
The system uses CCD for getting digital image, uses a 16 bit fix-point DSP to perform fast discret cosine transform(DCT) arithmetic and image encoding and realizes a fast image compression in end.
利用二维有限积分变换的方法推导出了四边固支矩形厚板位移和内力的精确解。
The exact solutions of displacement and inner force for clamped rectangular thick plate were deduced with two-dimension finite integral transform method.
提出了一种基于二维短时傅里叶变换的干涉相位图解缠方法。
A two-dimensional phase unwrapping approach based on two-dimensional windowed Fourier transform (WFT) is proposed.
对于空间目标识别这个具有挑战性的研究课题，提出了基于二维小波变换的空间目标识别算法。
Regarding the fact that space target recognition is a challenging research problem, this paper proposes a space target recognition algorithm based on the two-dimensional wavelet transform.
利用二维傅里叶变换进行方向滤波，较好地消除了南极地区影像上的条带噪声。
This paper presents a method that can remove streaking noise better by means of direction filtering based on two dimension Fourier transform.
该水印算法基于二维离散傅立叶变换(2dft)。
This algorithm is based on two dimensional discrete Fourier transform (2dft).
经过CCD摄像机像面和光切平面之间的空间映射变换及图象处理后，可一次获得被测物的某一个截面的二维轮廓信息。
D figure information of any section was also attained after spatial mapping transformation between CCD image plane and light-section plane.
针对红外图像对比度差、噪声较大的缺点，提出一种基于二维离散小波变换的红外图像增强方法。
Aiming at the bad contrast of infrared image and big noise, this article gives out an arithmetic of image enhancement based on the disperse of two-dimensional and wavelet transform.
应用形式渐近分析和拉普拉斯变换，我们从三维线性粘弹性方程组得到二维线性粘弹性弯壳的数学模型。
By applying formal asymptotic analysis and Laplace transformation, we obtain two-dimensional model system of linearly viscoelastic "flexural" shell from three-dimensional equations.
通过引入辅助问题并利用积分变换方法，推导出二维、双层球壳红外CAT通用算法，并对内表面为第三类边界条件进行了分析和讨论。
A general solution of IR CAT for two dimensions and two layers spherical shell is developed by introducing an auxiliary problem and using the integral transforms.
在光线空间的数据压缩中，计算了数据的相关系数，采用二维离散余弦变换(DCT)进行了变换域分析。
Data correlation coefficients were calculated and switch regions were analyzed by using two dimension discrete cosine transform (DCT) in ray-space data compression.
小波变换具有多分辨率和多尺度特性，特别适合于二维图像信号的处理，目前已应用在静止图像的压缩标准中。
While wavelet transform is suitable in image compression due to its multi-resolution and multi-scale analysis property, and is used in the standards of image compression.
提出用快速傅立叶变换计算二维模糊控制器的描述函数，并用来判别模糊控制系统的稳定性。
In order to analyze the stability of fuzzy control systems, the description function of fuzzy controller is calculated by using the fast Fourier transformation.
采用像素点变换法，实现了根据三维物体的二维投影图像恢复物体表面的真实几何面积的设想，大大降低了缺陷面积计算的误差；
To decrease the relative errors, the pixel transform method was adopted to recover the geometrical feature of sphere fruit surface from projected image while the area of defect was calculated.
对虚拟人图像数据作多种二维处理，包括图像几何变换、灰度增强、格式转换和压缩、图像配准和分割。
Many methods are used to finish VCH planar image processing, including image geometry transform, gray-scale enhancement format transition and compression , image registration and segmentation.
在二维情况下，忽略热扩散效应，利用汉克尔积分变换法和最陡下降法，求解热扩散方程和波动方程，得出了位移的解析表达式。
The thermal equation and wave equation are solved by the methods of Hankel transform and steepest descent, and the general expression of displacement is obtained.
该文的方法适用于求取较为简单的二维逆z变换问题，尤以偏导数法和逆卷积法更具实际意义。
So the methods given in this paper can be used to get some simple inverse Z transform. The partial derivative method and deconvolution method are of practical use.
本文对采集的瓷砖图像采用二维离散傅利叶变换对瓷砖颜色分布均匀度在二维频域范围内进行分析，提出了一种瓷砖颜色匀度的评判方法。
This paper introduces an analyzing method for evaluating the color even degree on the tile surface in two dimensional frequency domain, that is by adopting two dimensional discrete fourier transform.
将一维信号变换到二维坐标平面往往更有利于描述信号的时变特征，从而实现信号的分类识别。
The time - varying properties can be extracted better when signal being transformed on 2d coordinate plane for the purpose of signal recognition and classification.
该文抽象出图形处理器的流执行模型，描述图形处理器流处理机制的执行过程，在图形处理器上实现了二维离散余弦变换。
This paper abstracts a stream execution model of GPU, describes its stream execution process, and implements the discrete cosine transform on GPU.
本文对二维分布规则尺寸的激光在线测量进行了研究，提出了激光—傅里叶变换测量方法。
A new effective method with high precision for the on-line measurement of the averaged values of two-dimension regular sizes is described in this paper.
本文提出了将一种快速变换(r变换)用于对运动目标的二维图象进行形状分析的方法。
This paper presents a method which can be used for the shape analysis of two-dimensional image of a moving object in terms of the fast transformation (r transformation).
实验表明嵌入式零材编码方法可以用在非分离型二维子波变换情况，在低比特率时有很好的巅值信噪比PSNR。
The experiment shows that the embedded zerotree coding method can be used in the case of nonseparable wavelet transform and has good PSNR at low compression ratio.
在以上小波分析理论的基础上进一步讨论了二维正交小波变换和离散图像的小波变换实现。
Based on mentioned-above wavelet analysis theories, two-dimension biorthogonal wavelet and the implementation of wavelet transform on discrete images have been discussed.
实验中以CDF 9/7二维离散小波变换为例，对于JPEG 2000中推荐使用的5级小波分解，本文算法相对于原空间组合推举算法的缩放运算乘法量减少了34。
Using 5-level CDF9/7 2-D discrete wavelet transform recommend in the standard of JPEG2000, the multiplication operation for scaling in the algorithm is decreased by 34.
基于反转恢复法建立质子nmr二维时域数据，经双重付里叶变换获得二维频域数据。
Proton NMR two dimensional time-domain data are collected based on the inversion-recovery technique. Double Fourier transformation of those data yields the two dimensional frequency-domain data.
利用尺度不变量变换，提取逆合成孔径雷达二维像的尺度信息，并按照从大到小的顺序重新排列，称为顺序尺度。
The approach provides effective features for identification using the order scales extracted by scale invariant feature transform.
方法：采用傅立叶变换红外光谱法获得红外原谱，再结合二维相关技术，分析何首乌药材红外特征。
Methods: Compared the characters of FTIR spectrums, two-dimensional spectrums of Radix Polygoni Multiflori from different sources.
然后讨论用这种多项式变换计算二维数字卷积和二维dft的方法。
We discussed then how to compute two-dimensional digital convolution and two-dimensional DFT with the polynomial transforms, which are introduced in this paper.
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