public OpticalFlow(int width, int height, CudaContext ctx)
{
CUmodule mod = ctx.LoadModulePTX("opticalFlow.ptx");
warpingKernel = new WarpingKernel(ctx, mod);
createFlowFieldFromTiles = new CreateFlowFieldFromTiles(ctx, mod);
computeDerivativesKernel = new ComputeDerivativesKernel(ctx, mod);
lukasKanade = new LukasKanadeKernel(ctx, mod);
d_tmp = new NPPImage_32fC1(width, height);
d_Ix = new NPPImage_32fC1(width, height);
d_Iy = new NPPImage_32fC1(width, height);
d_Iz = new NPPImage_32fC1(width, height);
d_flow = new NPPImage_32fC2(width, height);
buffer = new CudaDeviceVariable <byte>(d_tmp.MeanStdDevGetBufferHostSize() * 3);
mean = new CudaDeviceVariable <double>(1);
std = new CudaDeviceVariable <double>(1);
d_filterX = new float[] { -0.25f, 0.25f, -0.25f, 0.25f };
d_filterY = new float[] { -0.25f, -0.25f, 0.25f, 0.25f };
d_filterT = new float[] { 0.25f, 0.25f, 0.25f, 0.25f };
}
