34 #ifndef GDALSIMPLESURF_H_
35 #define GDALSIMPLESURF_H_
37 #include "gdal_priv.h"
93 static const int DESC_SIZE = 64;
174 double *padfDescriptor;
199 void Initialize(
const double **padfImg,
int nHeight,
int nWidth);
209 double GetValue(
int nRow,
int nCol);
420 class MatchedPointPairInfo
423 MatchedPointPairInfo(
int nInd_1,
int nInd_2,
double dfDist)
427 euclideanDist = dfDist;
432 double euclideanDist;
480 int nXSize,
int nYSize,
481 double **padfImg,
int nHeight,
int nWidth);
497 std::vector<GDALFeaturePoint>*
513 std::vector<GDALFeaturePoint*> *poMatchPairs,
514 std::vector<GDALFeaturePoint> *poFirstCollect,
515 std::vector<GDALFeaturePoint> *poSecondCollect,
528 static double GetEuclideanDistance(
536 static void NormalizeDistances(std::list<MatchedPointPairInfo> *poList);
std::vector< GDALFeaturePoint > * ExtractFeaturePoints(GDALIntegralImage *poImg, double dfThreshold)
Find feature points using specified integral image.
Definition: gdal_simplesurf.cpp:211
int GetY()
Fetch Y-coordinate (line) of point.
Definition: gdal_simplesurf.cpp:99
int octaveNum
Octave which contains this layer (1,2,3...)
Definition: gdal_simplesurf.h:304
int height
Image height in pixels.
Definition: gdal_simplesurf.h:324
int GetHeight()
Fetch height of integral image.
Definition: gdal_octave.cpp:45
Class for handling octave layers in SURF-based algorithm.
Definition: gdal_simplesurf.h:341
int scale
Scale for this layer.
Definition: gdal_simplesurf.h:316
GDALOctaveMap(int nOctaveStart, int nOctaveEnd)
Create octave space.
Definition: gdal_octave.cpp:234
void SetSign(int nSign)
Set sign of point.
Definition: gdal_simplesurf.cpp:109
Class for searching corresponding points on images.
Definition: gdal_simplesurf.h:413
void SetScale(int nScale)
Set scale of point.
Definition: gdal_simplesurf.cpp:103
double HaarWavelet_X(int nRow, int nCol, int nSize)
Get value of horizontal Haar wavelet in specified square grid.
Definition: gdal_octave.cpp:124
Class of "feature point" in raster.
Definition: gdal_simplesurf.h:49
double ** detHessians
Hessian values for image pixels.
Definition: gdal_simplesurf.h:328
GDALOctaveLayer *** pMap
2-dimensional array of octave layers
Definition: gdal_simplesurf.h:384
void Initialize(const double **padfImg, int nHeight, int nWidth)
Compute integral image for specified array.
Definition: gdal_octave.cpp:49
GDALFeaturePoint()
Standard constructor.
Definition: gdal_simplesurf.cpp:38
int GetSign()
Fetch sign of Hessian determinant of point.
Definition: gdal_simplesurf.cpp:108
double HaarWavelet_Y(int nRow, int nCol, int nSize)
Get value of vertical Haar wavelet in specified square grid.
Definition: gdal_octave.cpp:130
double GetRectangleSum(int nRow, int nCol, int nWidth, int nHeight)
Get sum of values in specified rectangular grid.
Definition: gdal_octave.cpp:89
int GetRadius()
Fetch radius of point.
Definition: gdal_simplesurf.cpp:105
int radius
Length of the border.
Definition: gdal_simplesurf.h:312
void ComputeMap(GDALIntegralImage *poImg)
Calculate Hessian values for octave space (for all stored octave layers) using specified integral ima...
Definition: gdal_octave.cpp:249
void SetY(int nY)
Set Y coordinate of point.
Definition: gdal_simplesurf.cpp:100
static CPLErr ConvertRGBToLuminosity(GDALRasterBand *red, GDALRasterBand *green, GDALRasterBand *blue, int nXSize, int nYSize, double **padfImg, int nHeight, int nWidth)
Convert image with RGB channels to grayscale using "luminosity" method.
Definition: gdal_simplesurf.cpp:141
Integral image class (summed area table).
Definition: gdal_simplesurf.h:186
int GetWidth()
Fetch width of integral image.
Definition: gdal_octave.cpp:47
double & operator[](int nIndex)
Provide access to point's descriptor.
Definition: gdal_simplesurf.cpp:111
int ** signs
Hessian signs for speeded matching.
Definition: gdal_simplesurf.h:332
int width
Image width in pixels.
Definition: gdal_simplesurf.h:320
void ComputeLayer(GDALIntegralImage *poImg)
Perform calculation of Hessian determinats and their signs for specified integral image...
Definition: gdal_octave.cpp:166
double GetValue(int nRow, int nCol)
Fetch value of specified position in integral image.
Definition: gdal_octave.cpp:81
Various convenience functions for CPL.
int GetX()
Fetch X-coordinate (pixel) of point.
Definition: gdal_simplesurf.cpp:96
int octaveEnd
Number of top octave.
Definition: gdal_simplesurf.h:399
int filterSize
Length of the side of filter.
Definition: gdal_simplesurf.h:308
int GetScale()
Fetch scale of point.
Definition: gdal_simplesurf.cpp:102
A single raster band (or channel).
Definition: gdal_priv.h:460
void SetRadius(int nRadius)
Set radius of point.
Definition: gdal_simplesurf.cpp:106
int octaveStart
Number of bottom octave.
Definition: gdal_simplesurf.h:394
Class for computation and storage of Hessian values in SURF-based algorithm.
Definition: gdal_simplesurf.h:274
static const int INTERVALS
Value for constructing internal octave space.
Definition: gdal_simplesurf.h:389
static CPLErr MatchFeaturePoints(std::vector< GDALFeaturePoint * > *poMatchPairs, std::vector< GDALFeaturePoint > *poFirstCollect, std::vector< GDALFeaturePoint > *poSecondCollect, double dfThreshold)
Find corresponding points (equal points in two collections).
Definition: gdal_simplesurf.cpp:357
void SetX(int nX)
Set X coordinate of point.
Definition: gdal_simplesurf.cpp:97
GDALSimpleSURF(int nOctaveStart, int nOctaveEnd)
Prepare class according to specified parameters.
Definition: gdal_simplesurf.cpp:132
bool PointIsExtremum(int row, int col, GDALOctaveLayer *bot, GDALOctaveLayer *mid, GDALOctaveLayer *top, double threshold)
Method makes decision that specified point in middle octave layer is maximum among all points from 3x...
Definition: gdal_octave.cpp:256