Feature Matching and Heat Flow in Centro-Affine Geometry
Feature Matching and Heat Flow in Centro-Affine Geometry
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DOI:
10.3842/sigma.2020.093
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发表时间:
2020-03
期刊:
影响因子:
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通讯作者:
P. Olver;C. Qu;Yun Yang
中科院分区:
文献类型:
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作者:
P. Olver;C. Qu;Yun Yang
In this paper, we study the differential invariants and the invariant heat flow in centro-affine geometry, proving that the latter is equivalent to the inviscid Burgers' equation. Furthermore, we apply the centro-affine invariants to develop an invariant algorithm to match features of objects appearing in images. We show that the resulting algorithm compares favorably with the widely applied Scale-Invariant Feature Transform (SIFT), Speeded Up Robust Features (SURF), and Affine-SIFT (ASIFT) methods.