Update to 2.0.0 tree from current Fremantle build

[opencv] / src / cvaux / vs / blobtrackpostproclinear.cpp

diff --git a/src/cvaux/vs/blobtrackpostproclinear.cpp b/src/cvaux/vs/blobtrackpostproclinear.cpp
new file mode 100644 (file)
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+++ b/src/cvaux/vs/blobtrackpostproclinear.cpp
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+/*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 "_cvaux.h"
+
+/*======================= 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 =========================*/