Local Polar DCT Features for Image Description
Local Polar DCT Features for Image Description
复制标题
用于图像描述的局部极地 DCT 特征
DOI:
10.1109/lsp.2012.2229273
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发表时间:
2013
影响因子:
3.9
通讯作者:
Hongliang Li
中科院分区:
文献类型:
--
作者:
Tiecheng Song;Hongliang Li
We present a novel feature descriptor, Local Polar DCT Features (LPDF), which is robust to a variety of image transformations. Specifically, the local patch is quantized in the designed polar geometric structure and the 2-D DCT features are then extracted and rearranged. A subset of the resulting DCT coefficients is selected as our compact LPDF descriptor. We perform a comprehensive performance evaluation with state-of-the-art methods, i.e., SIFT, DAISY, LIOP, and GLOH on the standard Oxford dataset and two additional test image pairs. Experimental results demonstrate the superiority of proposed descriptor under various image transformations, even with very low dimensions.
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