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Merge pull request #4217 from wangyan42164:ocl_pyrlk_mul

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Vadim Pisarevsky 2015-07-22 11:00:00 +00:00
commit 9ad84896da
1 changed files with 3 additions and 4 deletions
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7
modules/video/src/opencl/pyrlk.cl
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@ -253,8 +253,7 @@ inline void GetPatch(image2d_t J, float x, float y,
float* Pch, float* Dx, float* Dy, float* Pch, float* Dx, float* Dy,
float* b1, float* b2) float* b1, float* b2)
{ {
float J_val = read_imagef(J, sampler, (float2)(x, y)).x; float diff = read_imagef(J, sampler, (float2)(x,y)).x-*Pch;
float diff = (J_val - *Pch) * 32.0f;
*b1 = mad(diff, *Dx, *b1); *b1 = mad(diff, *Dx, *b1);
*b2 = mad(diff, *Dy, *b2); *b2 = mad(diff, *Dy, *b2);
} }
@ -481,8 +480,8 @@ __kernel void lkSparse(image2d_t I, image2d_t J,
barrier(CLK_LOCAL_MEM_FENCE); barrier(CLK_LOCAL_MEM_FENCE);
float2 delta; float2 delta;
delta.x = mad(A12, b2, - A22 * b1); delta.x = mad(A12, b2, - A22 * b1) * 32.0f;
delta.y = mad(A12, b1, - A11 * b2); delta.y = mad(A12, b1, - A11 * b2) * 32.0f;
prevPt += delta; prevPt += delta;
loc0 += delta; loc0 += delta;