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.
128 lines
4.3 KiB
128 lines
4.3 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. |
|
// |
|
// |
|
// Intel License Agreement |
|
// |
|
// Copyright (C) 2000, Intel Corporation, 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 Intel Corporation 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" |
|
|
|
/*======================= TIME AVERAGING FILTER =========================*/ |
|
#define TIME_WND 5 |
|
class CvBlobTrackPostProcTimeAver:public CvBlobTrackPostProcOne |
|
{ |
|
|
|
protected: |
|
CvBlob m_Blob; |
|
CvBlob m_pBlobs[TIME_WND]; |
|
float m_Weights[TIME_WND]; |
|
int m_Frame; |
|
|
|
public: |
|
CvBlobTrackPostProcTimeAver( int KernelType = 0) |
|
{ |
|
int i; |
|
m_Frame = 0; |
|
for(i=0;i<TIME_WND;++i) |
|
{ |
|
m_Weights[i] = 1; |
|
if(KernelType == 1) |
|
{ |
|
m_Weights[i] = (float)exp((-2.3*i)/(TIME_WND-1)); /* last weight is 0.1 of first weight */ |
|
} |
|
} |
|
|
|
SetModuleName("TimeAver"); |
|
}; |
|
|
|
~CvBlobTrackPostProcTimeAver(){}; |
|
|
|
CvBlob* Process(CvBlob* pBlob) |
|
{ |
|
float WSum = 0; |
|
int i; |
|
int index = m_Frame % TIME_WND; |
|
int size = MIN((m_Frame+1), TIME_WND); |
|
m_pBlobs[index] = pBlob[0]; |
|
m_Blob.x = m_Blob.y = m_Blob.w = m_Blob.h = 0; |
|
|
|
for(i=0; i<size; ++i) |
|
{ |
|
float W = m_Weights[i]; |
|
int index = (m_Frame - i + TIME_WND) % TIME_WND; |
|
m_Blob.x += W*m_pBlobs[index].x; |
|
m_Blob.y += W*m_pBlobs[index].y; |
|
m_Blob.w += W*m_pBlobs[index].w; |
|
m_Blob.h += W*m_pBlobs[index].h; |
|
WSum += W; |
|
} |
|
assert(WSum>0); |
|
|
|
m_Blob.x /= WSum; |
|
m_Blob.y /= WSum; |
|
m_Blob.w /= WSum; |
|
m_Blob.h /= WSum; |
|
|
|
m_Frame++; |
|
return &m_Blob; |
|
}; |
|
|
|
void Release() |
|
{ |
|
delete this; |
|
} |
|
}; /* class CvBlobTrackPostProcTimeAver */ |
|
|
|
CvBlobTrackPostProcOne* cvCreateModuleBlobTrackPostProcTimeAverRectOne() |
|
{ |
|
return (CvBlobTrackPostProcOne*) new CvBlobTrackPostProcTimeAver(0); |
|
} |
|
|
|
CvBlobTrackPostProcOne* cvCreateModuleBlobTrackPostProcTimeAverExpOne() |
|
{ |
|
return (CvBlobTrackPostProcOne*) new CvBlobTrackPostProcTimeAver(1); |
|
} |
|
|
|
CvBlobTrackPostProc* cvCreateModuleBlobTrackPostProcTimeAverRect() |
|
{ |
|
return cvCreateBlobTrackPostProcList(cvCreateModuleBlobTrackPostProcTimeAverRectOne); |
|
} |
|
|
|
CvBlobTrackPostProc* cvCreateModuleBlobTrackPostProcTimeAverExp() |
|
{ |
|
return cvCreateBlobTrackPostProcList(cvCreateModuleBlobTrackPostProcTimeAverExpOne); |
|
} |
|
/*======================= KALMAN FILTER =========================*/
|
|
|