[37] | 1 | /* |
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| 2 | * Speeded-Up Robust Features (SURF) |
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| 3 | * http://people.ee.ethz.ch/~surf |
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| 4 | * |
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| 5 | * Authors: Herbert Bay, Andreas Ess, Geert Willems |
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| 6 | * Windows port by Stefan Saur |
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| 7 | * |
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| 8 | * Copyright (2006): ETH Zurich, Switzerland |
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| 9 | * Katholieke Universiteit Leuven, Belgium |
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| 10 | * All rights reserved. |
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| 11 | * |
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| 12 | * For details, see the paper: |
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| 13 | * Herbert Bay, Tinne Tuytelaars, Luc Van Gool, |
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| 14 | * "SURF: Speeded Up Robust Features" |
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| 15 | * Proceedings of the ninth European Conference on Computer Vision, May 2006 |
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| 16 | * |
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| 17 | * Permission to use, copy, modify, and distribute this software and |
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| 18 | * its documentation for educational, research, and non-commercial |
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| 19 | * purposes, without fee and without a signed licensing agreement, is |
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| 20 | * hereby granted, provided that the above copyright notice and this |
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| 21 | * paragraph appear in all copies modifications, and distributions. |
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| 22 | * |
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| 23 | * Any commercial use or any redistribution of this software |
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| 24 | * requires a license from one of the above mentioned establishments. |
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| 25 | * |
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| 26 | * For further details, contact Andreas Ess (aess@vision.ee.ethz.ch). |
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| 27 | */ |
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| 28 | |
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| 29 | #ifndef __SURF_H |
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| 30 | #define __SURF_H |
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| 31 | |
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| 32 | namespace surf { |
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| 33 | |
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| 34 | class Image; |
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| 35 | |
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| 36 | class Surf { |
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| 37 | public: |
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| 38 | //! Constructor |
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| 39 | Surf(); |
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| 40 | |
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| 41 | //! Constructor with parameters |
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| 42 | Surf(Image *im, bool dbl=false, bool usurf=false, |
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| 43 | bool ext=false, int insi=4); |
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| 44 | |
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| 45 | //! Destructor |
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| 46 | ~Surf(); |
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| 47 | |
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| 48 | //! Get length of the descriptor vector |
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| 49 | int getVectLength(); |
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| 50 | |
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| 51 | //! set Ipoint for which a descriptor has to be computed |
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| 52 | void setIpoint(Ipoint *ipt); |
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| 53 | |
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| 54 | //! Assign reproducible orienation |
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| 55 | void assignOrientation(); |
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| 56 | |
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| 57 | //! Compute the robust features |
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| 58 | void makeDescriptor(); |
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| 59 | |
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| 60 | protected: |
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| 61 | //! Create the vector |
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| 62 | void createVector(double scale, |
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| 63 | double row, double col); |
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| 64 | |
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| 65 | //! Create the vector |
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| 66 | void createUprightVector(double scale, |
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| 67 | double row, double col); |
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| 68 | |
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| 69 | //! Add sample to the vector |
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| 70 | void AddSample(int r, int c, double rpos, |
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| 71 | double cpos, double rx, double cx, int step); |
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| 72 | |
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| 73 | //! Add upright sample to the vector |
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| 74 | void AddUprightSample(int r, int c, double rpos, |
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| 75 | double cpos, double rx, double cx, int step); |
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| 76 | |
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| 77 | //! Place sample to index in vector |
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| 78 | void PlaceInIndex(double mag1, int ori1, |
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| 79 | double mag2, int ori2, double rx, double cx); |
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| 80 | |
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| 81 | //! Normalise descriptor vector for illumination invariance for |
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| 82 | //! Lambertian surfaces |
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| 83 | void normalise(); |
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| 84 | |
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| 85 | //! Create Lookup tables |
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| 86 | void createLookups(); |
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| 87 | |
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| 88 | private: |
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| 89 | Image *_iimage; |
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| 90 | Ipoint *_current; |
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| 91 | double ***_index; |
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| 92 | bool _doubleImage; |
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| 93 | bool _upright; |
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| 94 | bool _extended; |
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| 95 | int _VecLength; |
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| 96 | int _IndexSize; |
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| 97 | double _MagFactor; |
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| 98 | int _OriSize; |
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| 99 | int _width, _height; |
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| 100 | |
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| 101 | double _sine, _cose; |
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| 102 | double **_Pixels; |
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| 103 | |
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| 104 | double _lookup1[83], _lookup2[40]; |
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| 105 | }; |
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| 106 | |
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| 107 | } |
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| 108 | |
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| 109 | #endif // SURF_H |
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