Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
4.0 KiB
90 lines
4.0 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
|
// |
|
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
|
// |
|
// By downloading, copying, installing or using the software you agree to this license. |
|
// If you do not agree to this license, do not download, install, |
|
// copy or use the software. |
|
// |
|
// |
|
// License Agreement |
|
// For Open Source Computer Vision Library |
|
// |
|
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. |
|
// Copyright (C) 2009, Willow Garage Inc., all rights reserved. |
|
// Third party copyrights are property of their respective owners. |
|
// |
|
// Redistribution and use in source and binary forms, with or without modification, |
|
// are permitted provided that the following conditions are met: |
|
// |
|
// * Redistribution's of source code must retain the above copyright notice, |
|
// this list of conditions and the following disclaimer. |
|
// |
|
// * Redistribution's in binary form must reproduce the above copyright notice, |
|
// this list of conditions and the following disclaimer in the documentation |
|
// and/or other materials provided with the distribution. |
|
// |
|
// * The name of the copyright holders may not be used to endorse or promote products |
|
// derived from this software without specific prior written permission. |
|
// |
|
// This software is provided by the copyright holders and contributors "as is" and |
|
// any express or implied warranties, including, but not limited to, the implied |
|
// warranties of merchantability and fitness for a particular purpose are disclaimed. |
|
// In no event shall the Intel Corporation or contributors be liable for any direct, |
|
// indirect, incidental, special, exemplary, or consequential damages |
|
// (including, but not limited to, procurement of substitute goods or services; |
|
// loss of use, data, or profits; or business interruption) however caused |
|
// and on any theory of liability, whether in contract, strict liability, |
|
// or tort (including negligence or otherwise) arising in any way out of |
|
// the use of this software, even if advised of the possibility of such damage. |
|
// |
|
//M*/ |
|
|
|
#include "precomp.hpp" |
|
|
|
using namespace cv; |
|
using namespace cv::gpu; |
|
|
|
#if !defined HAVE_CUDA || defined(CUDA_DISABLER) |
|
|
|
void cv::gpu::FastOpticalFlowBM::operator ()(const GpuMat&, const GpuMat&, GpuMat&, GpuMat&, int, int, Stream&) { throw_no_cuda(); } |
|
|
|
#else // HAVE_CUDA |
|
|
|
namespace optflowbm_fast |
|
{ |
|
void get_buffer_size(int src_cols, int src_rows, int search_window, int block_window, int& buffer_cols, int& buffer_rows); |
|
|
|
template <typename T> |
|
void calc(PtrStepSzb I0, PtrStepSzb I1, PtrStepSzf velx, PtrStepSzf vely, PtrStepi buffer, int search_window, int block_window, cudaStream_t stream); |
|
} |
|
|
|
void cv::gpu::FastOpticalFlowBM::operator ()(const GpuMat& I0, const GpuMat& I1, GpuMat& flowx, GpuMat& flowy, int search_window, int block_window, Stream& stream) |
|
{ |
|
CV_Assert( I0.type() == CV_8UC1 ); |
|
CV_Assert( I1.size() == I0.size() && I1.type() == I0.type() ); |
|
|
|
int border_size = search_window / 2 + block_window / 2; |
|
Size esize = I0.size() + Size(border_size, border_size) * 2; |
|
|
|
ensureSizeIsEnough(esize, I0.type(), extended_I0); |
|
ensureSizeIsEnough(esize, I0.type(), extended_I1); |
|
|
|
gpu::copyMakeBorder(I0, extended_I0, border_size, border_size, border_size, border_size, cv::BORDER_DEFAULT, Scalar(), stream); |
|
gpu::copyMakeBorder(I1, extended_I1, border_size, border_size, border_size, border_size, cv::BORDER_DEFAULT, Scalar(), stream); |
|
|
|
GpuMat I0_hdr = extended_I0(Rect(Point2i(border_size, border_size), I0.size())); |
|
GpuMat I1_hdr = extended_I1(Rect(Point2i(border_size, border_size), I0.size())); |
|
|
|
int bcols, brows; |
|
optflowbm_fast::get_buffer_size(I0.cols, I0.rows, search_window, block_window, bcols, brows); |
|
|
|
ensureSizeIsEnough(brows, bcols, CV_32SC1, buffer); |
|
|
|
flowx.create(I0.size(), CV_32FC1); |
|
flowy.create(I0.size(), CV_32FC1); |
|
|
|
optflowbm_fast::calc<uchar>(I0_hdr, I1_hdr, flowx, flowy, buffer, search_window, block_window, StreamAccessor::getStream(stream)); |
|
} |
|
|
|
#endif // HAVE_CUDA
|
|
|