35 #ifndef GDALSIMPLESURF_H_ 36 #define GDALSIMPLESURF_H_ 176 double *padfDescriptor;
203 void Initialize(
const double **padfImg,
int nHeight,
int nWidth);
213 double GetValue(
int nRow,
int nCol);
265 double **pMatrix =
nullptr;
428 class MatchedPointPairInfo
431 MatchedPointPairInfo(
int nInd_1,
int nInd_2,
double dfDist):
432 ind_1(nInd_1), ind_2(nInd_2), euclideanDist(dfDist) {}
436 double euclideanDist;
486 int nXSize,
int nYSize,
487 double **padfImg,
int nHeight,
int nWidth);
503 std::vector<GDALFeaturePoint>*
519 std::vector<GDALFeaturePoint*> *poMatchPairs,
520 std::vector<GDALFeaturePoint> *poFirstCollect,
521 std::vector<GDALFeaturePoint> *poSecondCollect,
534 static double GetEuclideanDistance(
542 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:213
GDALFeaturePoint & operator=(const GDALFeaturePoint &point)
Assignment operator.
Definition: gdal_simplesurf.cpp:71
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:365
int octaveNum
Octave which contains this layer (1,2,3...)
Definition: gdal_simplesurf.h:310
int height
Image height in pixels.
Definition: gdal_simplesurf.h:330
int GetY() const
Fetch Y-coordinate (line) of point.
Definition: gdal_simplesurf.cpp:96
int GetHeight()
Fetch height of integral image.
Definition: gdal_octave.cpp:40
Class for handling octave layers in SURF-based algorithm.
Definition: gdal_simplesurf.h:347
int scale
Scale for this layer.
Definition: gdal_simplesurf.h:322
GDALOctaveMap(int nOctaveStart, int nOctaveEnd)
Create octave space.
Definition: gdal_octave.cpp:244
void SetSign(int nSign)
Set sign of point.
Definition: gdal_simplesurf.cpp:106
Class for searching corresponding points on images.
Definition: gdal_simplesurf.h:421
void SetScale(int nScale)
Set scale of point.
Definition: gdal_simplesurf.cpp:100
double HaarWavelet_X(int nRow, int nCol, int nSize)
Get value of horizontal Haar wavelet in specified square grid.
Definition: gdal_octave.cpp:133
Class of "feature point" in raster.
Definition: gdal_simplesurf.h:50
double ** detHessians
Hessian values for image pixels.
Definition: gdal_simplesurf.h:334
GDALOctaveLayer *** pMap
2-dimensional array of octave layers
Definition: gdal_simplesurf.h:392
void Initialize(const double **padfImg, int nHeight, int nWidth)
Compute integral image for specified array.
Definition: gdal_octave.cpp:44
GDALFeaturePoint()
Standard constructor.
Definition: gdal_simplesurf.cpp:40
double HaarWavelet_Y(int nRow, int nCol, int nSize)
Get value of vertical Haar wavelet in specified square grid.
Definition: gdal_octave.cpp:139
double GetRectangleSum(int nRow, int nCol, int nWidth, int nHeight)
Get sum of values in specified rectangular grid.
Definition: gdal_octave.cpp:94
int radius
Length of the border.
Definition: gdal_simplesurf.h:318
void ComputeMap(GDALIntegralImage *poImg)
Calculate Hessian values for octave space (for all stored octave layers) using specified integral ima...
Definition: gdal_octave.cpp:257
void SetY(int nY)
Set Y coordinate of point.
Definition: gdal_simplesurf.cpp:97
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:137
Integral image class (summed area table).
Definition: gdal_simplesurf.h:188
int GetWidth()
Fetch width of integral image.
Definition: gdal_octave.cpp:42
double & operator[](int nIndex)
Provide access to point's descriptor.
Definition: gdal_simplesurf.cpp:108
int ** signs
Hessian signs for speeded matching.
Definition: gdal_simplesurf.h:338
int width
Image width in pixels.
Definition: gdal_simplesurf.h:326
void ComputeLayer(GDALIntegralImage *poImg)
Perform calculation of Hessian determinants and their signs for specified integral image...
Definition: gdal_octave.cpp:171
double GetValue(int nRow, int nCol)
Fetch value of specified position in integral image.
Definition: gdal_octave.cpp:86
Various convenience functions for CPL.
int GetX() const
Fetch X-coordinate (pixel) of point.
Definition: gdal_simplesurf.cpp:93
int GetRadius() const
Fetch radius of point.
Definition: gdal_simplesurf.cpp:102
int octaveEnd
Number of top octave.
Definition: gdal_simplesurf.h:407
int filterSize
Length of the side of filter.
Definition: gdal_simplesurf.h:314
A single raster band (or channel).
Definition: gdal_priv.h:1032
static const int DESC_SIZE
Descriptor length.
Definition: gdal_simplesurf.h:95
void SetRadius(int nRadius)
Set radius of point.
Definition: gdal_simplesurf.cpp:103
int octaveStart
Number of bottom octave.
Definition: gdal_simplesurf.h:402
int GetSign() const
Fetch sign of Hessian determinant of point.
Definition: gdal_simplesurf.cpp:105
Class for computation and storage of Hessian values in SURF-based algorithm.
Definition: gdal_simplesurf.h:278
static const int INTERVALS
Value for constructing internal octave space.
Definition: gdal_simplesurf.h:397
int GetScale() const
Fetch scale of point.
Definition: gdal_simplesurf.cpp:99
void SetX(int nX)
Set X coordinate of point.
Definition: gdal_simplesurf.cpp:94
CPLErr
Error category.
Definition: cpl_error.h:52
GDALSimpleSURF(int nOctaveStart, int nOctaveEnd)
Prepare class according to specified parameters.
Definition: gdal_simplesurf.cpp:129
#define CPL_DISALLOW_COPY_ASSIGN(ClassName)
Helper to remove the copy and assignment constructors so that the compiler will not generate the defa...
Definition: cpl_port.h:989
static 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:264