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minor gpu TVL1 optical flow optimization:

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don't calc diff term if it is not used for epsilon criterion
This commit is contained in:
Vladislav Vinogradov 2013-08-21 18:17:45 +04:00
parent 1a7c2eefb8
commit de214950c4
1 changed files with 2 additions and 1 deletions
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3
modules/gpu/src/tvl1flow.cpp
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@ -222,7 +222,8 @@ void cv::gpu::OpticalFlowDual_TVL1_GPU::procOneScale(const GpuMat& I0, const Gpu
{
estimateU(I1wx, I1wy, grad, rho_c, p11, p12, p21, p22, u1, u2, diff, l_t, static_cast<float>(theta));
error = gpu::sum(diff, norm_buf)[0];
if (epsilon > 0)
error = gpu::sum(diff, norm_buf)[0];
estimateDualVariables(u1, u2, p11, p12, p21, p22, taut);
}