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fixed bug in TVL1 optical flow:

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initial optical flow was not cleaned during the second call
This commit is contained in:
Vladislav Vinogradov 2013-03-29 10:40:28 +04:00
parent cdddecbb93
commit 924b0ef786
2 changed files with 27 additions and 24 deletions
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22
modules/gpu/src/tvl1flow.cpp
View File

@ -130,6 +130,17 @@ void cv::gpu::OpticalFlowDual_TVL1_GPU::operator ()(const GpuMat& I0, const GpuM
gpu::multiply(u1s[s], Scalar::all(0.5), u1s[s]);
gpu::multiply(u2s[s], Scalar::all(0.5), u2s[s]);
}
else
{
u1s[s].create(I0s[s].size(), CV_32FC1);
u2s[s].create(I0s[s].size(), CV_32FC1);
}
}
if (!useInitialFlow)
{
u1s[nscales-1].setTo(Scalar::all(0));
u2s[nscales-1].setTo(Scalar::all(0));
}
// pyramidal structure for computing the optical flow
@ -174,18 +185,9 @@ void cv::gpu::OpticalFlowDual_TVL1_GPU::procOneScale(const GpuMat& I0, const Gpu
CV_DbgAssert( I1.size() == I0.size() );
CV_DbgAssert( I1.type() == I0.type() );
CV_DbgAssert( u1.empty() || u1.size() == I0.size() );
CV_DbgAssert( u1.size() == I0.size() );
CV_DbgAssert( u2.size() == u1.size() );
if (u1.empty())
{
u1.create(I0.size(), CV_32FC1);
u1.setTo(Scalar::all(0));
u2.create(I0.size(), CV_32FC1);
u2.setTo(Scalar::all(0));
}
GpuMat I1x = I1x_buf(Rect(0, 0, I0.cols, I0.rows));
GpuMat I1y = I1y_buf(Rect(0, 0, I0.cols, I0.rows));
centeredGradient(I1, I1x, I1y);

27
modules/video/src/tvl1flow.cpp
View File

@ -169,13 +169,12 @@ void OpticalFlowDual_TVL1::calc(InputArray _I0, InputArray _I1, InputOutputArray
I0.convertTo(I0s[0], I0s[0].depth(), I0.depth() == CV_8U ? 1.0 : 255.0);
I1.convertTo(I1s[0], I1s[0].depth(), I1.depth() == CV_8U ? 1.0 : 255.0);
if (useInitialFlow)
{
u1s[0].create(I0.size());
u2s[0].create(I0.size());
if (useInitialFlow)
{
Mat_<float> mv[] = {u1s[0], u2s[0]};
split(_flow.getMat(), mv);
}
@ -228,6 +227,17 @@ void OpticalFlowDual_TVL1::calc(InputArray _I0, InputArray _I1, InputOutputArray
multiply(u1s[s], Scalar::all(0.5), u1s[s]);
multiply(u2s[s], Scalar::all(0.5), u2s[s]);
}
else
{
u1s[s].create(I0s[s].size());
u2s[s].create(I0s[s].size());
}
}
if (!useInitialFlow)
{
u1s[nscales-1].setTo(Scalar::all(0));
u2s[nscales-1].setTo(Scalar::all(0));
}
// pyramidal structure for computing the optical flow
@ -793,18 +803,9 @@ void OpticalFlowDual_TVL1::procOneScale(const Mat_<float>& I0, const Mat_<float>
CV_DbgAssert( I1.size() == I0.size() );
CV_DbgAssert( I1.type() == I0.type() );
CV_DbgAssert( u1.empty() || u1.size() == I0.size() );
CV_DbgAssert( u1.size() == I0.size() );
CV_DbgAssert( u2.size() == u1.size() );
if (u1.empty())
{
u1.create(I0.size());
u1.setTo(Scalar::all(0));
u2.create(I0.size());
u2.setTo(Scalar::all(0));
}
Mat_<float> I1x = I1x_buf(Rect(0, 0, I0.cols, I0.rows));
Mat_<float> I1y = I1y_buf(Rect(0, 0, I0.cols, I0.rows));
centeredGradient(I1, I1x, I1y);