1) Vertical edge projection
垂直边缘投影
2) vertical lines
垂直边缘
1.
Starting from detection of vertical lines, a strategy for automatic extraction of high-rise building in monocular high-resolution aerial images is developed under the evidential reasoning methodology, while many useful information in object space and image space are combined, and multiple advanced techniques of signal processing and computer vision are incorporate.
由建筑物垂直边缘检测出发,采用证据推理法,该文提出了一种在单视角高分辨率航空影像中自动提取高层建筑物的策略。
2.
In this paper, in order to extract vertical lines, a simple method for determining the vanishing point of vertical lines is first analyzed based on the knowledge about the aerial photogrammetry.
航空影像中 ,垂直边缘对建筑物提取具有重要意义。
3.
First, in order to acquire periodic texture signals, gray-levels down the vertical lines are picked-up; and in order to enhance signal s robustness for noise and to catch the transversal orientation of texture, gray-le.
依据灰度图像中窗户区域呈现出的明暗变化规律,在建筑物垂直边缘检测的基础上,利用时频分析和Radon变换描述了窗户纹理的周期性和方向性。
3) vertical projection
垂直投影
1.
A New Arithmetic of Character Segmentation Basing on Stencil-Plate Matching and Vertical Projection;
模板匹配法和垂直投影法相结合的一种新的车牌字符分割方法
2.
Algorithms of line s vertical projection line on DEM;
空间曲线在数字高程模型上的垂直投影算法
3.
Then the preferably segmented characters of a license plate can be found by combining vertical projection with connected domain algorithm to generate the sliding template .
然后,结合垂直投影和连通域算法寻找车牌的优割字符,生成滑动的分割模板进行字符的垂直分割,有效地解决了字符粘连、断裂情况下字符识别问题。
4) vertical projecting
垂直投影
1.
According to analyzing the features of annotation of spot elevation,this paper gives a method of identifying elevation annotation of a scanned topographic map and discusses the principle of the method,including separating character series on the basis of morphologic translating and cutting apart single character on the basis of vertical projecting.
分析了扫描地形图中高程点数字注记和等高线数字注记的特点 ,介绍了一种扫描地形图数字高程注记的识别方法 ,并着重介绍了该方法采用的技术 ,包括形态学变换基础上的快速数字字符串分离方法及基于垂直投影的数字字符分割方法等 ,并给出了性能评价。
5) contour projection
边缘投影
1.
Phase information and contour projection based vehicle localization new algorithm;
基于相位信息与边缘投影的车体定位新算法
6) projecting rim
投影边缘
1.
First of all, this paper used superquadric projecting rim to model objects with data lost partly.
本文首先采用超二次曲面投影边缘对缺失部分数据物体建模,通过分析超二次曲面边缘拟合的原理,建立了超二次曲面边缘拟合的初始目标函数,同时利用曲线等距取样和边缘投影等策略,优化了目标函数,设计并实现了超二次曲面边缘拟合算法,得到了物体的超二次曲面模型参数,成功恢复了缺失部分数据物体的原始模型。
补充资料：滤波反投影或卷积反投影
滤波反投影或卷积反投影
影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中，无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution)，即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正，然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单，速度快，所得图像逼真、清晰。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条