查询词典 image map

In order to correct these geometric distortions on satellite SAR image, and cooperate this information on SAR image with the information from other sensors, it is necessary to geocode original SAR image, and obtain correct standard geocoded image in the defined map projection.

为了校正星载SAR图象的几何畸变，使SAR图象上的数据信息和其它传感器上得到的信息进行融合，必须对星载SAR原始图象进行地理编码，得到校正后的统一的地图坐标系上的标准地理编码图象。

According to the ridges had the continuity in the local area, an intelligent algorithm of smoothing the direction map was proposed, and then according to the direction map the template of direction filter was designed, then the fingerprint image with the designed template was filtered and the binarization image was obtained.

并根据指纹图像在局部范围内纹线连续的特点，提出了一种智能的平滑方向图算法，再构建方向滤波模板进行方向滤波，得到指纹二值化图像。

This paper focuses on the job of building a practical program of map geocoding based on analysis of satellite SAR image. Map geocoding is one of procedures in post-processing of satellite SAR image.

为了使地理编码的过程成为一个流程，一个可以产生数据产品的处理过程，本文在分析和研究星载SAR图象地理编码的基础上，把重点放在建立一个实用的地理编码程序的工作上。

Based on the traits of dyadic wavelet decomposition of signal and that of the distribution of wavelet image coefficients, PLVQ and ZR are conjoined by making use of D\-4 lattice. Firstly, Pyramidal lattice vector quantization is adopted to quantize wavelet image coefficients. Nonzero lattice vectors and zero lattice vectors are formed. Secondly, nonzero lattice vectors are dealt with by adopting complex entropy coding. Finally, in order to fix on the position of nonzero lattice vector effectively, that is, to deal with zero lattice vectors effectively, the concept of significant map is introduced into. The significant map is scanned two times from down to up and from up to down.

根据信号的二进小波分解特点和小波图象系数的分布特点，利用D\-4格将PLVQ和零树结合起来，提出了一种基于零树和金字塔格型矢量量化的小波图象编码方法，该方法首先采用金字塔格型矢量方法来量化小波图象系数，以得到非零格点和零格点；然后采用复合熵编码来处理非零格点；最后为了有效确定非零格点的位置，也就是为了有效地处理零格点，又引进了重要图的概念。

It is not conformable with many images on the surface such as cylindrical map image,spherical map image,which can be found in reality.

而现实中往往可见到许多曲面上的图像，比如柱面帖图、球面帖图，处理此类图像采用基于直角坐标系的微分算子显然不能胜任。

The main findings in this thesis are as follows:(1) Through the algebraic analyzing of the hydrologic map and the analysis and processing of the digital image, one could learn the knowledgement of the electronic map and digital image.

主要成果如下：(1)通过水文等值线图的代数分析、数字图像本质分析，加深了对电子地图和数字图像的认识。

Feature of principal lines spatial distribution: detect the principal lines through edge detecting technology, and then divide the image of palmprint into blocks with same dimension, compute the mean and variance as feature; Feature of palmprint direction: divide the image into sub-images; compute the max angle of projection and coordinate of each sub-image, which stand for the direction and location of the line on the palm; Feature of moment invariants: compute the moment invariants of each sub-image and the whole image as feature.

掌纹主线空间分布特征：利用边缘检测技术检测出掌纹的主线，将图像分割成相同大小互不重叠的子图，提取每一个子图的均值和方差作为特征；掌纹线方向特征：将图像分成不重叠的子图，利用Radon变换求出每一个子图的最大投影角度和坐标，也就是子图内掌纹线的方向和位置，构造特征向量；掌纹不变矩特征：提取图像整体和分割后的子图的不变矩作为特征。

First, it was to obtain two binary images from segmenting image by two thresholds. Second, erosion, opening and closing were done to the two images according to some knowledge of the shape and location of the objects in the image that we have already known. Last, the edge information from the image segmented by a high threshold was put into the image segmented by a low threshold. It is the way to segment and discern circular objects accurately from the complex image and can greatly improve the accuracy rate of discerning.

首先分别根据两个阈值进行分割得到两幅二值图像，然后根据目标是圆形以及其大致位置等先验知识分别对两幅图进行腐蚀，开启，闭合等数学形态学运算，将高阈值分割得到的图像中的边界信息叠加到低阈值分割得到的图像中，实现对复杂背景图像中圆形物体的准确分割与提取，解决了复杂背景图像中物体识别率低的问题。

In order to improve the accuracy of fingerprint directional image further, combining the advantage of the continuity of the point directional image with the advantage of the robustness of the block directional image to the noises in the fingerprint image, a novel concept on the continuously distributed directional image/field and the method to compute it in the fingerprint images are develope...

实践证明这种连续分布方向图过渡平滑、自然，既具有很好的连续性、渐变性和抗噪性，又具有极高的精确度，还兼有指纹点方向图的连续过渡性和块方向图的抗噪性优点。

On the base of finishing image matching, Aiming at the fact that sequence image matching and binocular stereo image matching simultaneously exists in three dimensions movement analyses based on point feature, The method of double matching restrict combining sequence and stereo image matching is brought forward in matching distinctness stage after researching and anglicizing the character of sequence matching and stereo image matching in processing.

在完成图象匹配的基础上，针对基于点特征的三维运动分析中，同时存在序列、立体图象匹配问题，研究分析该过程不同匹配的特点，提出了序列、立体匹配相结合，分阶段的双匹配约束方法。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。