通过衍射光学内积变换实现旋转和平移不变特征提取。
Rotation- and scale-invariant feature extraction by a diffractive optical inner-product transform.
作者信息
Roux F S
出版信息
Appl Opt. 1996 Apr 10;35(11):1894-9. doi: 10.1364/AO.35.001894.
PMID:21085313
Abstract
A diffractive optical element that is capable of extracting rotation- and scale-invariant features from input images is presented. The diffractive optical element performs an inner product between the input image and a set of basis functions. This set of basis functions is derived from that used in the Fourier-Mellin transform. Simulated results from scaled and rotated versions of two input images are presented.
摘要
提出了一种能够从输入图像中提取旋转和平移不变特征的衍射光学元件。该衍射光学元件在输入图像和一组基函数之间执行内积运算。这组基函数是从傅里叶-梅林变换中使用的基函数推导而来的。给出了两个输入图像的缩放和旋转版本的模拟结果。
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