影像本文

As to the remaining parameters, two methods are developed: first, accepting that the projection function complies with a circular function within at least a part of a given field of view, constrained by the obtained object-to-image radial mapping and a constant focal length, the best-fitting point of the optical origin is tested along the optical axis; secondly, referring to the postulation of the exclusively bilateral mapping between an imaged point and its scenic sight ray, a measuring technique is developed to survey the world coordinates which will fabricate a projecting path to the imaged points located on the imageable region of the image plane in order to directly model the projection geometries involved.

而针对其余参数本文提出两种解题方法：其一是根据『在「部分视野角范围」内，鱼眼相机的投射模型符合一典型的「圆形函数」』以标靶实体与其影像尺寸为限制条件，测试光学轴上的最佳视觉参考点、鉴定最适当的投射模型、焦距、及有效的视野角度范围。其二是根据『一视野线排他性地与对应「呈影点」一一映射』参考一呈影点来搜寻空间中对应视野线的绝对座标后，据以演绎相机内部影像形成的模型。

A new and efficient geometrical correction algorithm is proposed for MODIS IB data, and possesses of the merits of forward mapping and inverse mapping algorithms; 3. Algorithms to remove stripe noise in MODIS IB data are developed, including Fourier Transform, Wavelet Transform and interpolation method; 4. MODIS data composite algorithm is developed, and a 16-day composite map covering entire China and its outward is produced.

本文介绍了开发MODIS数据基础处理软件的基本算法和成果，主要包括：(1)用C++语言开发和实现了MODIS数据基础处理软件；(2)研究和发展了一个普适的、全新的、兼有前向映射和后向映射优点的MODIS 1B数据几何纠正算法；(3)研究和实现了MODIS条带噪声消除算法，包括傅立叶变换、小波变换和插值三种算法，并对其进行了比较；(4)研究和实现了MODIS影像合成算法，并在此基础上完成了中国及周围地区16天MODIS彩色影像和植被指数的合成。

In this paper, I establish a set of updating the basic land-use map technology and flow after I go deep into studying the methods of updating the basic land-use map based on 3S technology. It is very important point that I bring forward some methods of change information automatic detected founding on land-use map unit, cross correlation analysis with multispectral image and object-oriented classification aiming at difference data and difficult identifying change information problems.

本文在深入研究了基于3S技术更新土地利用图件的方法基础上，从实用化的角度出发，建立了一套利用3S技术更新土地利用基础图件的技术流程与方法，并针对不同的数据情况和变化信息自动提取等问题提出了基于土地利用图斑单元的知识库变化信息自动发现方法、多波段遥感影像交叉相关分析变化识别方法及面向对象的遥感影像分类变化检测方法。

So, the work in this thesis focuses on three aspects:(1) Analyzing the geometrical structure feature and spectral feature of typical linear targets in the multispectral image and the panchromatic image.

因此，本文的研究内容包括：(1)多光谱影像中典型线状目标区域的几何和光谱特征分析，在目标知识表达和推理的基础上，建立典型目标模型，对单源影像进行目标区域分割。

In order to judge the grade of pimento, some parameters are extracted from two-dimensional image of pimento. These extracted parameters consist of length, width, perimeter, projected area, projected area to squared perimeter ratio, and width to length ratio. The extracted parameters and grade of pimento judged by experienced workers are used as input and desired patterns to estimate the connection weights of neural network. In this paper, a three-layer feed-forward neural network and back-propagation learning algorithm are suggested for the shape and size grading of pimento.

本文以青椒为对象，首先利用数位影像处理技术从人工分级后的各等级产品的影像中萃取出周长、投影面积、长度、宽度、投影面积对周长平方比与宽度对长度比等可作为判断青椒等级的分级准则，再利用多层前馈式类神经网路来模拟农产品的分级作业，并采用反向传递演算法学习各项分级准则与等级判断结果间的关系，以量化了解各项分级准则对等级判断结果的影响程度。

Combined with the condition of the study site and test data characteristic, it did quadratic polynomial transform, bilinear interpolation resampling, and gained matched images.

结合本文试验区地形情况和实验数据的特点，对所选影像数据按二次多项式变换、双线性内插方法进行重采样，实现影像间精配准。

This dissertation constructs the virtual scene with satellitic image and aerial photography.

类似于其它的虚拟漫游系统，本文利用卫片影像、航片影像和数字高程模型构造出虚拟场景。

It has been proven that the textural information can be used to classification by means of test.

本文首先分析了遥感影像分类方法和纹理提取方法的研究现状，接着对地统计学的基本原理进行了论述，在这一理论的基础上，对变差函数应用于遥感影像的纹理描述和提取进行了论证和实验说明；并就一些具体应用问题如计算窗口大小、计算方向和计算步长的选择等问题进行了讨论，提出了一种自适应的确定纹理计算窗口大小的方法；同时，在现有算法的基础上提出了一种新的纹理计算方法――加权变差函数法。

In this paper, thermogram was used to do human face recognition. The thermogram of human face was captured from infrared camera. Image processing technologies were used to preprocess the captured thermogram. Then several features were extracted from the processed thermogram. These features included the distribution of temperature statistics, the perimeter of the face, the length/width ratio of the smallest rectangle which contained the face, and the triangle formed from the three lowest temperature points of the two cheeks and the chin. A three-layer back-propagation neural network was used as the recognition tool.

本文中利用红外线摄影机撷取人之脸部所散发之热分布影像以进行人脸辨识，热影像经过前处理后，再撷取与温度分布有关之相关特徵资料，所撷取之特徵资料包括温度统计分布、脸部边缘长度、包含脸部之最小矩形之长宽比、以及两颊与下巴三个部位之温度最低点之距离，并使用三层架构的倒传递类神经网路作为辨识的工具，辨识的过程包括两个步骤：训练与测试。

In this paper, the principles and methods of digital image rectification based on digital photogrammetrical mapping system and the overlay of rectified stereo images with raster data or vector map data are described. Further more, under the platform of digital photogrammetrical system, the quick updating of 3D stereo digital relief map is realized.

本文论述了基于数字摄影测量系统的数字影像几何纠正的原理与方法，以及利用纠正后的立体影像和栅格或矢量地形图数据叠加，在数字摄影测量系统下，实现三维立体数字地形图快速修测。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。