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Computer Graphics and Image Processing最新文献

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Contour-based motion estimation 基于轮廓的运动估计
Computer Graphics and Image Processing Pub Date : 1982-12-01 DOI: 10.1016/0146-664X(82)90062-4
Larry S. Davis, Zhongquan Wu, Hanfang Sun
{"title":"Contour-based motion estimation","authors":"Larry S. Davis, Zhongquan Wu, Hanfang Sun","doi":"10.1016/0146-664X(82)90062-4","DOIUrl":"https://doi.org/10.1016/0146-664X(82)90062-4","url":null,"abstract":"","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 4","pages":"Page 398"},"PeriodicalIF":0.0,"publicationDate":"1982-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90062-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137408000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface consistency constraints in vision 视觉中的表面一致性约束
Computer Graphics and Image Processing Pub Date : 1982-12-01 DOI: 10.1016/0146-664X(82)90064-8
W. Eric L. Grimson
{"title":"Surface consistency constraints in vision","authors":"W. Eric L. Grimson","doi":"10.1016/0146-664X(82)90064-8","DOIUrl":"https://doi.org/10.1016/0146-664X(82)90064-8","url":null,"abstract":"","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 4","pages":"Pages 398-399"},"PeriodicalIF":0.0,"publicationDate":"1982-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90064-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90029180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 51
Waveform segmentation and description using edge preserving smoothing 使用边缘保持平滑的波形分割和描述
Computer Graphics and Image Processing Pub Date : 1982-12-01 DOI: 10.1016/0146-664X(82)90066-1
K. Prazdny
{"title":"Waveform segmentation and description using edge preserving smoothing","authors":"K. Prazdny","doi":"10.1016/0146-664X(82)90066-1","DOIUrl":"https://doi.org/10.1016/0146-664X(82)90066-1","url":null,"abstract":"","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 4","pages":"Page 399"},"PeriodicalIF":0.0,"publicationDate":"1982-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90066-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90029181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vector code probability and metrication error in the representation of straight lines of finite length 向量码表示有限长度直线的概率和计量误差
Computer Graphics and Image Processing Pub Date : 1982-12-01 DOI: 10.1016/0146-664X(82)90057-0
A.M. Vossepoel , A.W.M. Smeulders
{"title":"Vector code probability and metrication error in the representation of straight lines of finite length","authors":"A.M. Vossepoel ,&nbsp;A.W.M. Smeulders","doi":"10.1016/0146-664X(82)90057-0","DOIUrl":"https://doi.org/10.1016/0146-664X(82)90057-0","url":null,"abstract":"<div><p>An unbiased estimate for the length of straight lines represented by an arbitrary number of discrete vector elements is derived from statistical evaluation of line segments randomly positioned on a grid. The computational method is independent of the connectivity of the grid, whether it is rectangular or hexagonal. Estimates for the variance of the length are also given. The length estimate may be used in combination with linearity conditions to evaluate the length of an arbitrary curved contour by polygonal approximation. The length of the original curve can then be estimated with greater accuracy than when existing methods are used. An alternative method for length estimation is also presented, based on least-squares approximation of infinitely long straight lines. For 8-connectivity, the alternative method gives a greater accuracy than similar existing methods. Figures are presented for both alternatives in comparison with existing methods.</p></div>","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 4","pages":"Pages 347-364"},"PeriodicalIF":0.0,"publicationDate":"1982-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90057-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137408001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Block segmentation and text extraction in mixed text/image documents 混合文本/图像文档中的块分割和文本提取
Computer Graphics and Image Processing Pub Date : 1982-12-01 DOI: 10.1016/0146-664X(82)90059-4
Friedrich M. Wahl, Kwan Y. Wong, Richard G. Casey
{"title":"Block segmentation and text extraction in mixed text/image documents","authors":"Friedrich M. Wahl,&nbsp;Kwan Y. Wong,&nbsp;Richard G. Casey","doi":"10.1016/0146-664X(82)90059-4","DOIUrl":"https://doi.org/10.1016/0146-664X(82)90059-4","url":null,"abstract":"<div><p>The segmentation and classification of digitized printed documents into regions of text and images is a necessary first processing step in document analysis systems. It is shown that a constrained run length algorithm is well suited to partition most documents into areas of text lines, solid black lines, and rectangular ☐es enclosing graphics and halftone images. During the processing these areas are labeled and meaningful features are calculated. By making use of the regular appearance of text lines as textured stripes, a linear adaptive classification scheme is constructed to discriminate text regions from others.</p></div>","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 4","pages":"Pages 375-390"},"PeriodicalIF":0.0,"publicationDate":"1982-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90059-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137408002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neighboring gray level dependence matrix for texture classification 纹理分类的邻近灰度依赖矩阵
Computer Graphics and Image Processing Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90093-4
Chengjun Sun, William G. Wee
{"title":"Neighboring gray level dependence matrix for texture classification","authors":"Chengjun Sun,&nbsp;William G. Wee","doi":"10.1016/0146-664X(82)90093-4","DOIUrl":"10.1016/0146-664X(82)90093-4","url":null,"abstract":"","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 3","pages":"Page 297"},"PeriodicalIF":0.0,"publicationDate":"1982-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90093-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127287462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 349
Detection of osteogenesis imperfecta by automated texture analysis 成骨不全的自动纹理分析检测
Computer Graphics and Image Processing Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90082-X
Demetri Terzopoulos, Steven W. Zucker
{"title":"Detection of osteogenesis imperfecta by automated texture analysis","authors":"Demetri Terzopoulos,&nbsp;Steven W. Zucker","doi":"10.1016/0146-664X(82)90082-X","DOIUrl":"10.1016/0146-664X(82)90082-X","url":null,"abstract":"<div><p>An automated system for detecting Osteogenesis Imperfecta (OI), an inheritable disorder of human connective tissue, is described. The approach is one of texture analysis, founded on standard statistical recognition of co-occurrence-based texture descriptors. Our contribution is to show that texture descriptors derived from gray-level co-occurrence matrices can be used in conjunction with descriptors derived from generalized co-occurrence matrices of local image features to increase performance. In fact, for the OI problem, our system demonstrates a level of performance which is significantly better than that of medical specialists.</p></div>","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 3","pages":"Pages 229-243"},"PeriodicalIF":0.0,"publicationDate":"1982-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90082-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116416246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Volumetric model and 3D trajectory of a moving car derived from monocular TV frame sequences of a street scene 基于街景单目电视帧序列的汽车运动体模型和三维轨迹
Computer Graphics and Image Processing Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90081-8
L. Dreschler, H.-H. Nagel
{"title":"Volumetric model and 3D trajectory of a moving car derived from monocular TV frame sequences of a street scene","authors":"L. Dreschler,&nbsp;H.-H. Nagel","doi":"10.1016/0146-664X(82)90081-8","DOIUrl":"10.1016/0146-664X(82)90081-8","url":null,"abstract":"<div><p>A polyhedral approximation for the volumetric description of a moving rigid object in a real-world scene is derived, based on measurements made on monocular TV frame sequences. The trajectory and attitude of the object motion relative to the camera is simultaneously determined up to the same factor which scales the object description. Results from two street scene sequences are presented. The approach is compared to related ones reported in the recent literature. Our experience forced us to modify the relaxation approach of<span>Barnard and Thompson (<em>IEEE Trans. Pattern Anal. Mach. Intell.</em><strong>PAMI-2</strong>, 1980, 333–340; Technical Report 79-1, Computer Science Department, University of Minnesota, Minneapolis, 1979)</span> in order to obtain acceptable results. These modifications are described and discussed.</p></div>","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 3","pages":"Pages 199-228"},"PeriodicalIF":0.0,"publicationDate":"1982-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90081-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132097031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 306
A construction for visualC1 continuity of polynomial surface patches 多项式曲面块视觉c1连续性的构造
Computer Graphics and Image Processing Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90085-5
Gerald Farin
{"title":"A construction for visualC1 continuity of polynomial surface patches","authors":"Gerald Farin","doi":"10.1016/0146-664X(82)90085-5","DOIUrl":"10.1016/0146-664X(82)90085-5","url":null,"abstract":"<div><p>A geometric construction is described which ensures tangent plane (visual<em>C</em><sup>1</sup>) continuity between adjacent polynomial surface patches. The algorithm works for both three- and four-sided patches.</p></div>","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 3","pages":"Pages 272-282"},"PeriodicalIF":0.0,"publicationDate":"1982-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90085-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134287464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 109
Displacement vectors derived from second order intensity variations in image sequences 由图像序列的二阶强度变化导出的位移向量
Computer Graphics and Image Processing Pub Date : 1982-11-01 DOI: 10.1016/0146-664X(82)90089-2
Hans-Hellmut Nagel
{"title":"Displacement vectors derived from second order intensity variations in image sequences","authors":"Hans-Hellmut Nagel","doi":"10.1016/0146-664X(82)90089-2","DOIUrl":"10.1016/0146-664X(82)90089-2","url":null,"abstract":"","PeriodicalId":100313,"journal":{"name":"Computer Graphics and Image Processing","volume":"20 3","pages":"Page 296"},"PeriodicalIF":0.0,"publicationDate":"1982-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-664X(82)90089-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133890738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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