generic-library/opencv
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fixed Bug #2581

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GoodFeaturesToTrackDetector_GPU fails when no corners found
This commit is contained in:
Vladislav Vinogradov 2012-11-29 11:17:04 +04:00
parent 5047b3fba2
commit 362655b02a
2 changed files with 21 additions and 0 deletions
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6
modules/gpu/src/gftt.cpp
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@ -85,6 +85,12 @@ void cv::gpu::GoodFeaturesToTrackDetector_GPU::operator ()(const GpuMat& image,
int total = findCorners_gpu(eig_, static_cast<float>(maxVal * qualityLevel), mask, tmpCorners_.ptr<float2>(), tmpCorners_.cols); int total = findCorners_gpu(eig_, static_cast<float>(maxVal * qualityLevel), mask, tmpCorners_.ptr<float2>(), tmpCorners_.cols);
if (total == 0)
{
corners.release();
return;
}
sortCorners_gpu(eig_, tmpCorners_.ptr<float2>(), total); sortCorners_gpu(eig_, tmpCorners_.ptr<float2>(), total);
if (minDistance < 1) if (minDistance < 1)

15
modules/gpu/test/test_video.cpp
View File

@ -203,6 +203,21 @@ TEST_P(GoodFeaturesToTrack, Accuracy)
} }
} }
TEST_P(GoodFeaturesToTrack, EmptyCorners)
{
int maxCorners = 1000;
double qualityLevel = 0.01;
cv::gpu::GoodFeaturesToTrackDetector_GPU detector(maxCorners, qualityLevel, minDistance);
cv::gpu::GpuMat src(100, 100, CV_8UC1, cv::Scalar::all(0));
cv::gpu::GpuMat corners(1, maxCorners, CV_32FC2);
detector(src, corners);
ASSERT_TRUE( corners.empty() );
}
INSTANTIATE_TEST_CASE_P(GPU_Video, GoodFeaturesToTrack, testing::Combine( INSTANTIATE_TEST_CASE_P(GPU_Video, GoodFeaturesToTrack, testing::Combine(
ALL_DEVICES, ALL_DEVICES,
testing::Values(MinDistance(0.0), MinDistance(3.0)))); testing::Values(MinDistance(0.0), MinDistance(3.0))));