查询词典 image distance

The hierarchical structure of the retrieval strategy is analyzed to reach the real-time and retrieval accuracy requirement. A trademark image database system under hierarchical scheme is implemented: the string-matching method is first used to reduce the image search scope under man-machine interaction, then smallest enclosed rectangle and Hausdorff distance metric are used to measure the similarity between trademarks under image region normalization and transform invariance.

2分析了层次结构的检索策略以解决图象检索的实时性要求和准确性要求，并实现了一具体商标库检索系统的层次检索方法，在人机交互方式下，用字符串匹配方法减少图象搜索范围；在图象区域规格化下，用最小约束距和Hausdorff距离度量商标相似性，并实现了变换不变性。

The invention discloses a vehicle speed matching method based on linear array CCD image, including the following steps that: two linear array CCD video cameras are respectively arranged on two sections positioned on a road at intervals; both linear array CCD video cameras face downwards and are provided with infrared ray laser source; the frame rate of each CCD video camera is more than 1,000 frames per second, and the resolution is more than 1,024 lines; correlation matching computation of the image sequences obtained by both linear array CCD video cameras is carried out to obtain the time difference of the same object in two image sequences; finally, by means of the time difference and the distance between both cameras, the driving speed of an object vehicle can be obtained according to the velocity formula V=s/t.

本发明公开了一种基于线阵CCD图像的车辆速度匹配方法，该方法在道路相距一定距离的两个断面上分别安装两个线阵CCD摄像机，两个线阵CCD摄像机指向垂直向下，线阵CCD摄像机上配有红外线激光源，线阵CCD摄像机的帧速率大于1000帧/秒，分辨率大于1024线；对两个线阵CCD摄像机得到的图像序列进行相关匹配计算，从而获得同一个目标在两个图像序列中的时间差，利用该时间差和两个摄像机的距离，根据速度公式V＝s/t即可以得到目标车辆的行进速度。

In addition, the software about optical image system and some functional enhancement have been briefly introduced. The changes of the planar and spatial practical image point and ideal image point have been discussed when the vision field angle, object distance and range of refractive index have changed. Some summarizations have been put forward. Some results have been deduced and given qualitative explain.

并简单的介绍了由光学成像算法实现的软件以及对该算法的一些功能的增强从视场角、物距和折射率变化幅度三个方面讨论其分别发生变化时在平面上和空间中实际像点与理想像点的偏差的变化情况，并总结其变化规律，对其中的部分规律进行了简单的推倒和定性的说明。

IHT is make used of to proceed line edge fitting in the actual engineering. The auto-adaptable image edge detection method is applied to detect image edge in real project, and the region of image edge detected is limited within 1 pixel. IHT is also applied to fit line edge. Comparing with MHT, the result of IHT indicates its speed quick, the accuracy high, and anti-jamming-quality strong, exactly said that the accuracy of IHT fitted line is less than 0.1 pixel for polar distance and less than 0.01deg for polar angle.

自适应边缘检测方法被应用于检测实际工程的图像边缘，检测到的边缘区域在亚像素之内；修正的Hough 变换算法也被运用于相应工程的直线拟合，与传统的Hough算法相比，结果表明其速度更快、精度更高，抗干扰能力更强，其拟合直线的极径精度可达到0.1个像素，极角精度可达0.01度。

First we construct a covariance matrix from sample images, then compute the eigenvalues and corresponding eigenvectors of the covariance matrix, construct a feature matrix with the eigenvectors. Then every images in database can be projected into the feature matrix and gain a projection vector, so does the input image. Then we can judge the resemblance between input image with each image in database by computing the distance between their projection vectors.

我们首先根据采集的样本图像构造一个协方差矩阵，然后求取该矩阵的特征值，以这些矩阵特征值对应的特征向量构造出一个特征空间，然后将输入图像向该特征空间映射，将获取的映射系数与样本库中图像的映射系数进行距离计算，根据计算出的距离判定输入图像与样本图像间的匹配程度。

By fusing the IKONOS multi-band and pan image using several image fusion algorithms(IHS transform, PC transform, Gram-Schmidt transform and smoothing filter-based intensity modulation) and assessing the fusion image, indicates that qualitative comparison is too subjective, although many methods are provided for assessment when using quantitative methods, more bands and more methods should be used for their limitations, spectral curve comparison was the best method for appraising the result, spectral angle and geometry distance was introduced to appraise the spectral curve.

以IKONOS影像为数据源，对IHS、PC，Gram-Schmidt和基于亮度调节的平滑滤波四种融合算法进行融合处理，对其结果进行了评价。结果表明，定性比较主观性较强，定量比较方法虽多，但大都有一定的局限性，不同谱段的计算结果总有些差异。因此，定量评价时应该多选一些波段与评价方法才能获得比较客观的评价结果。光谱曲线的比较不失为一种比较好的方法，在对光谱曲线进行比较时本文引入了光谱角度和几何距离两种方法进行定量的比较。

This method is that we first threshold image from the image, then we apply fuzzy distance transform to get fuzzy distance image, and finally, we use the watershed algorithm to apart conglutinant or overlapped grain.

该方法首先对颗粒图像进行二值化，然后对图像作模糊距离变换得到模糊距离图，再利用分水岭算法将粘连或者部分重叠颗粒分离。

The Fresnel lens in the optical receptor spotlights the headlamp beams to form their image at the 1-meter distance between the optical receptor and headlamps. CMOS camera as an image sensor, takes the photos of their images, which are captured by VG-M201, The application of some digital image processing techniques to these images, such as edge-picking up、 least-square fitting-curve algorithm, is to calculate the offset position/angle of optical axis of the high beams and the nodical offset of the unsymmetrical facular light and shade cut-off line of the low beams.

系统的图像采集工作是利用受光箱中的菲涅耳透镜在1米的测量距离上聚合前照灯灯光，由CMOS摄像头作为图像传感器件，照入灯光远光光斑和非对称近光图像，由嵌入式处理器对捕获的图像运用边缘提取、最小二乘法拟合曲线等数字图像处理技术计算出远光主光轴偏移角度以及非对称近光光斑明暗截止线拐点的偏移，实现了前照灯近光非对称光斑的自动测量。

Group Exhibitions: in 2006, Process and Expression, The Scale of Picture Determines Attitude: the 1st 5x7 Photo Biennale, Direction, Mixture of Clear and Obscure: Chinese Contemporary Arts Exhibition; in 2005, Fan Shou Wei Yun Fu Shou Wei Yu: the 1st Exhibition of Beijing TS1 Contemporary Art Center, Skin of City—Research on the Possibility of Contemporary City Image (Tap Seac Gallery of Macao, Shenzhen Art Museum), Transparent Box, Untitled—Self-Project:'05 China Pingyao International Photograph Exhibition, Ten Points and Ten Colors (Soka Contemporary Space, Beijing), Tian An Men (Amsterdam Photo Museum, Holland), The 2nd Chengdu Biennale, Tomorrow without Glancing Back: Chinese Contemporary Art Exhibition (Kuandu Museum of Fine Arts, Taipei); in 2004, Meet by Chance, One to One: Their Sight (Chambers Fine Arts, New York, USA), Chinese Photo and Image Fine Arts, Times of Imitating Images; in 2003, Distance—Contemporary Art Invitational Exhibition of Guangdong Museum of Art (Guangdong Museum of Art, Guangdong), Left Hand and Right Hand: China and Germany Contemporary Art United Exhibition (Beijing 798 Space), Expression and Condition, Chinese Photo and Image Fine Arts (Art Museum of Beijing Normal University), Blue Sky without Defense; in 2002, Speak to Oneself, Chinese New Photo and Image Exhibition, Bridge: Contemporary Art Invitational Exhibition, Legend-Fabrication-Copy, Phenomenon, Chuang Ku Exhibition (Shanghai Dongdaming Chuang Ku Exhibition); in 2001, Knowledge is Power; in 1999, Contemporary Chinese Art Exhibition; in 1998, Surprise to Existence, In the City: Opening Oneself; in 1997, Chinese Art General Exhibition: Contemporary Oil Painting Exhibition.

联 展：2006年Process And Expression。&画幅决定态度&首届5x7照相双年展方向、虚虚实实—中国当代艺术展；2005年&翻手为云，覆手为雨&—北京 TS1当代艺术中心第一回展、城市的皮肤—当代都市影像的可能性研究（澳门塔石艺文馆、深圳美术馆）、透明的盒子北京SOHOU现代城）无题—自我投射2005中国平遥国际摄影大展、士点十色、天安门（荷兰阿姆斯特丹摄影博物馆）、第二届成都双年展、明日，不回眸—中国当代艺术展；2004年邂逅、&一对一&他们的目光、中国影像绘画、拟像时代；2003年&左手与右手&中、德当代艺术联展、表情与状态、中国影像绘画展、距离·广东美术馆当代艺术邀请展、蓝天不设防；2002年自言自语、中国新影像展、桥·当代艺术邀请展、演义·捏造·复制、现象、创库展；2001年知识就是力量；1999年当代中国艺术展；1998年对于存在的惊奇、在城市中—开放的自我；1997年中国艺术大展·当代油画艺术展·当代油画艺术展。

Compared with the existing distance transform algorithm in the process of wood cell image segmentation,the proposed algorithm not only can enhance distance transform speed,but also has a vital significance to improve image segmentation efficiency.

经过在木材细胞图像的分割过程中，同现有的距离变换算法比较证明，改进方法提高了距离变换速度，对提高图像分割的效率具有重要意义。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了