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added upright parameter to SURF_GPU

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This commit is contained in:
Vladislav Vinogradov 2011-03-17 14:15:54 +00:00
parent b6eb12c8dd
commit 9342c4b076
2 changed files with 24 additions and 8 deletions
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4
modules/gpu/include/opencv2/gpu/gpu.hpp
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@ -1545,7 +1545,7 @@ namespace cv
SURF_GPU();
//! the full constructor taking all the necessary parameters
explicit SURF_GPU(double _hessianThreshold, int _nOctaves=4,
int _nOctaveLayers=2, bool _extended=false, float _keypointsRatio=0.01f);
int _nOctaveLayers=2, bool _extended=false, float _keypointsRatio=0.01f, bool _upright = false);
//! returns the descriptor size in float's (64 or 128)
int descriptorSize() const;
@ -1579,6 +1579,8 @@ namespace cv
//! max keypoints = keypointsRatio * img.size().area()
float keypointsRatio;
bool upright;
GpuMat sum, mask1, maskSum, intBuffer;
GpuMat det, trace;

22
modules/gpu/src/surf.cpp
View File

@ -49,7 +49,7 @@ using namespace std;
#if !defined (HAVE_CUDA)
cv::gpu::SURF_GPU::SURF_GPU() { throw_nogpu(); }
cv::gpu::SURF_GPU::SURF_GPU(double, int, int, bool, float) { throw_nogpu(); }
cv::gpu::SURF_GPU::SURF_GPU(double, int, int, bool, float, bool) { throw_nogpu(); }
int cv::gpu::SURF_GPU::descriptorSize() const { throw_nogpu(); return 0;}
void cv::gpu::SURF_GPU::uploadKeypoints(const vector<KeyPoint>&, GpuMat&) { throw_nogpu(); }
void cv::gpu::SURF_GPU::downloadKeypoints(const GpuMat&, vector<KeyPoint>&) { throw_nogpu(); }
@ -92,7 +92,9 @@ namespace
img_cols(img.cols), img_rows(img.rows),
use_mask(!mask.empty())
use_mask(!mask.empty()),
upright(surf.upright)
{
CV_Assert(!img.empty() && img.type() == CV_8UC1);
CV_Assert(mask.empty() || (mask.size() == img.size() && mask.type() == CV_8UC1));
@ -176,7 +178,15 @@ namespace
cudaSafeCall( cudaMemcpy(&featureCounter, d_counters, sizeof(unsigned int), cudaMemcpyDeviceToHost) );
featureCounter = std::min(featureCounter, static_cast<unsigned int>(maxFeatures));
if (!upright)
findOrientation(featuresBuffer.colRange(0, featureCounter), keypoints);
else
{
if (featureCounter > 0)
featuresBuffer.colRange(0, featureCounter).copyTo(keypoints);
else
keypoints.release();
}
}
void findOrientation(const GpuMat& features, GpuMat& keypoints)
@ -225,6 +235,8 @@ namespace
bool use_mask;
bool upright;
int maxCandidates;
int maxFeatures;
int maxKeypoints;
@ -240,15 +252,17 @@ cv::gpu::SURF_GPU::SURF_GPU()
nOctaves = 4;
nOctaveLayers = 2;
keypointsRatio = 0.01f;
upright = false;
}
cv::gpu::SURF_GPU::SURF_GPU(double _threshold, int _nOctaves, int _nOctaveLayers, bool _extended, float _keypointsRatio)
cv::gpu::SURF_GPU::SURF_GPU(double _threshold, int _nOctaves, int _nOctaveLayers, bool _extended, float _keypointsRatio, bool _upright)
{
hessianThreshold = _threshold;
extended = _extended;
nOctaves = _nOctaves;
nOctaveLayers = _nOctaveLayers;
keypointsRatio = _keypointsRatio;
upright = _upright;
}
int cv::gpu::SURF_GPU::descriptorSize() const
@ -387,7 +401,7 @@ void cv::gpu::SURF_GPU::operator()(const GpuMat& img, const GpuMat& mask, GpuMat
if (!useProvidedKeypoints)
surf.detectKeypoints(keypoints);
else
else if (!upright)
{
GpuMat keypointsBuf;
surf.findOrientation(keypoints, keypointsBuf);