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Chord distributions for shape matching 用于形状匹配的弦分布
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90084-3
Stephen P. Smith, Anil K. Jain

A shape matching method based on concepts tied to integral geometry is studied. The method consists of computing the distribution of random chords over the figures to be matched and comparing them by means of the Kolmogorov-Smirnov test. A simplified form of the procedure for matching figures to a circle yields a test for circularity. It is generalized to obtain a statistical test for shape matching and then modified to produce a dissimilarity measure between shapes. The circularity test is performed on 30 shapes and compared to two other circularity measures found in the literature. Experiments are also performed using the matching procedures.

研究了一种基于积分几何概念的形状匹配方法。该方法包括计算待匹配图形上随机和弦的分布，并通过Kolmogorov-Smirnov检验对它们进行比较。将数字与圆相匹配的程序的一种简化形式产生了圆度测试。首先将其推广到形状匹配的统计检验，然后对其进行修正，得到形状之间的不相似度度量。圆度测试在30种形状上进行，并与文献中发现的其他两种圆度测量进行比较。实验也进行了使用匹配程序。
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引用次数: 44
A discrete spatial representation for lateral motion stereo 横向立体运动的离散空间表示
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90088-0
Nelson J. Bridwell, Thomas S. Huang
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引用次数: 0
Shape and correspondence 形状与对应
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90091-0
Jon A. Webb, J.K. Aggarwal
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引用次数: 0
Understanding engineering drawings 理解工程图纸
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90083-1
Robert M. Haralick, David Queeney

It is shown that understanding the three dimensional objects depicted in the orthographic views employed in engineering drawings can be achieved by solving a sequence of three consistent labeling problems. The constraints used in the engineering drawings are stated, the translation to the constraints of the consistent labeling problems are given, and the computer solution is illustrated by the execution of an appropriate tree search.

结果表明，通过解决一系列三个一致的标注问题，可以理解工程图纸中使用的正射影视图中描绘的三维物体。说明了工程图纸中使用的约束条件，给出了一致标注问题的约束条件的转换，并通过执行适当的树搜索来说明计算机解决方案。
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引用次数: 0
An experiment in multi-spectral, multi-temporal crop classification using relaxation techniques 基于松弛技术的多光谱、多时间作物分类实验
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90095-8
Larry S. Davis, Cheng-Ye Wang, Hu-Chen Xie
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引用次数: 1
Closed-form extension of the anharmonic ratio toN-space 非调和比率ton空间的闭型扩展
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90094-6
Michael H. Brill, Eamon B. Barrett
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引用次数: 1
Determining velocity maps by spatio-temporal neighborhoods from image sequences 利用图像序列的时空邻域确定速度图
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90092-2
Masahiko Yachida
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引用次数: 0
A two-pass filling algorithm for raster graphics 光栅图形的两步填充算法
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90087-9
A. Distante, N. Veneziani

An algorithm for filling irregular polygons is presented. It is designed to operate in raster mode and uses the refresh memory of a graphic display as working space. The algorithm has been implemented in a host computer but it can be implemented easily within the microprocessor controlling the display. All areas contoured by closed lines are shaded at the same time according to a preassigned color code.

提出了一种不规则多边形的填充算法。它被设计成在栅格模式下运行，并使用图形显示器的刷新存储器作为工作空间。该算法已在上位机上实现，但它可以很容易地在控制显示的微处理器内实现。根据预先分配的颜色代码，所有由封闭线勾勒的区域同时被阴影。
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引用次数: 0
Representation of three-dimensional motion in dynamic scenes 动态场景中三维运动的表示
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90090-9
Minoru Asada, Saburo Tsuji
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引用次数: 0
An isotropic four-point interpolation based on cubic splines 基于三次样条的各向同性四点插值
Computer Graphics and Image Processing
Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90086-7
Koichi Harada, Eihachiro Nakamae

A more efficient algorithm than that of J. E. Midgley (Computer Graphics and Image Processing11, 1979, 192–196) is given for smooth curve construction; the amount of calculation required is diminished, and the three major conditions (local, isotropic, and applicable to curves in an arbitrary number of dimensions), strongly required for data interpolation, are also satisfied by our method. The new method is based on cubic spline interpolation, while Midgley's is based on circular interpolation.

给出了一种比J. E. Midgley (Computer Graphics and Image processing, 1979,192 - 196)更有效的光滑曲线构造算法;该方法不仅减少了计算量，而且满足了数据插值所需要的三个主要条件(局部、各向同性和适用于任意维数的曲线)。新方法是基于三次样条插值，而Midgley的方法是基于圆插值。
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引用次数: 6
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