Projective evolution of plane curves

被引：0

作者：

Castrillón, M ^{[1
]}

Valdés, A ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Matemat, Dept Geometria & Topol, Madrid 28040, Spain

来源：

INTERNATIONAL JOURNAL OF COMPUTER VISION | 2001年 / 42卷 / 03期

关键词：

evolution operators; heat flows; projective evolution; scale-spaces;

D O I：

10.1023/A:1011143732632

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

We show that projectively invariant evolution operators have unavoidable singularities. In particular, we see that there exists no non-singular projective evolution operator well-defined over straight lines nor conics.

引用

页码：191 / 201

页数：11

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