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![[Figure 2]](nj5198fig2mag.jpg)
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Figure 2
(a) The filter bank as proposed by Varma & Zisserman (2005  ) consists of edge (top three rows, left half) and bar (top three rows, right half) filters at six orientations and three scales, and two rotationally symmetric filters (Gaussian and Laplacian of Gaussian; bottom row). (b) Example of the filter response of a pixel, where only the maximum response of the edge and bar filters at each scale are kept, resulting a response vector with eight numbers. |
![[Figure 2]](nj5198fig2.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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