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2017-01-14 21:39:51 -0600	commented question	How to get the GMM co-variance matrix? Thank you for your advise! I did try vector<mat> covs = em.getMatVector("covs"); and it did get the co-variance matrix successfully. However, while the program hit the end bracket of if, an error had came up, which is: Debug Assertion Failed! Program: D:\Kinect test\GMM\GMM\x64\Debug\GMM.exe File: minkernel\crts\ucrt\src\appcrt\heap\debug_heap.cpp Line: 980 Expression: __acrt_first_block == header It looks like the problem is in assigning memory to vectors. I try to assign the co-variance matrix to a new cv::Mat object once the function executed, and then apply cov.clear() function and it works fine.
2017-01-13 02:22:55 -0600	commented question	How to get the GMM co-variance matrix? Yes, it runs in debug mode.
2017-01-13 00:33:36 -0600	commented question	How to get the GMM co-variance matrix? I already update the call stack, thank you.
2017-01-13 00:32:44 -0600	received badge	● Editor (source)
2017-01-12 21:29:28 -0600	received badge	● Student (source)
2017-01-12 21:25:37 -0600	commented question	How to get the GMM co-variance matrix? The call stack is very long, can I just post it as an answer tomorrow? As I just created my account yesterday, I am not all allow to post answers within two days after the account created. Sorry for the delay.
2017-01-12 20:00:04 -0600	commented question	How to get the GMM co-variance matrix? The call stack of the error is: > GMM.exe! cv::Algorithm::get<std::vector<cv::mat,std::allocator<cv::mat> > >(const char * _name) Line 4095
2017-01-12 02:49:31 -0600	asked a question	How to get the GMM co-variance matrix? I am using cv::EM to train the GMMs. Everything works fine except when I want to get the co-variance matrix I got a Debug Assertion Failed. The code is: `cout << "Test the EM algorithm in Opencv" << endl; cv::EM em(5); em.train(training_set); if (em.isTrained()) { cout << "Finished trainging EM" << endl; const cv::Mat &weights = em.get<cv::Mat>("weights"); const cv::Mat &Means = em.get<cv::Mat>("means"); const vector<cv::Mat> &Covs = em.get<vector<cv::Mat>>("covs"); } system("pause");` and the error message is: Debug Assertion Failed! Program: D:\Kinect test\GMM\GMM\x64\Debug\GMM.exe File: f:\dd\vctools\crt\crtw32\misc\dbgheap.c Line: 1424 Expression: _pFirstBlock == pHead For information on how your program can cause an assertion failure, see the Visual C++ documentation on asserts. The complete call stack is: ntdll.dll!NtWaitForSingleObject() Unknown ntdll.dll!LdrpDrainWorkQueue() Unknown ntdll.dll!LdrpLoadDllInternal() Unknown ntdll.dll!LdrpLoadDll() Unknown ntdll.dll!LdrLoadDll() Unknown KernelBase.dll!LoadLibraryExW() Unknown SogouPY.ime!00007ff89b27daf8() Unknown SogouPY.ime!00007ff89b1186ce() Unknown SogouPY.ime!00007ff89b11873a() Unknown SogouPY.ime!00007ff89b1f7a02() Unknown SogouPY.ime!00007ff89b1f7b68() Unknown SogouPY.ime!00007ff89b2212e7() Unknown SogouPY.ime!00007ff89b228965() Unknown SogouPY.ime!00007ff89b2b6a85() Unknown SogouPY.ime!00007ff89b227437() Unknown SogouPY.ime!00007ff89b22759f() Unknown SogouPY.ime!00007ff89b227638() Unknown user32.dll!UserCallWinProcCheckWow() Unknown user32.dll!DispatchClientMessage() Unknown user32.dll!__fnINLPCREATESTRUCT() Unknown ntdll.dll!KiUserCallbackDispatcherContinue() Unknown win32u.dll!NtUserCreateWindowEx() Unknown user32.dll!VerNtUserCreateWindowEx() Unknown user32.dll!CreateWindowInternal() Unknown user32.dll!CreateWindowExW() Unknown SogouTSF.ime!00007ff89b7fceae() Unknown SogouTSF.ime!00007ff89b7e9dd5() Unknown msctf.dll!CTip::Activate() Unknown msctf.dll!CThreadInputMgr::_ActivateTip() Unknown msctf.dll!CThreadInputMgr::ActivateInputProfile() Unknown msctf.dll!CThreadInputMgr::OnActiveProfileChange(void) Unknown msctf.dll!CThreadInputMgr::TimerProc(struct HWND__ ,unsigned int,unsigned __int64,unsigned long) Unknown user32.dll!UserCallWinProc() Unknown user32.dll!DispatchMessageWorker() Unknown user32.dll!DialogBox2() Unknown user32.dll!InternalDialogBox() Unknown user32.dll!SoftModalMessageBox() Unknown user32.dll!MessageBoxWorker() Unknown user32.dll!MessageBoxTimeoutW() Unknown user32.dll!MessageBoxW() Unknown msvcr120d.dll!__crtMessageBoxW(const wchar_t lpText=0x0000008d4ddc2260, const wchar_t * lpCaption=0x00007ff877265140, unsigned int uType=73746) Line 250 C msvcr120d.dll!__crtMessageWindowW(int nRptType=2, void * returnAddress=0x00007ff8771f0829, const wchar_t * szFile=0x00007ff877288a80, const wchar_t * szLine=0x0000008d4ddc5350, const wchar_t * szModule=0x0000000000000000, const wchar_t * szUserMessage=0x0000008d4ddca350) Line 391 C++ msvcr120d.dll!_VCrtDbgReportW(int nRptType=2, void * returnAddress=0x00007ff8771f0829, const wchar_t * szFile=0x00007ff877288a80, int nLine=1424, const wchar_t * szModule=0x0000000000000000, const wchar_t * szFormat=0x00007ff877263a3c, char * arglist=0x0000008d4ddcc448) Line 672 C msvcr120d.dll!_CrtDbgReportWV(int nRptType=2, void * returnAddress=0x00007ff8771f0829, const wchar_t * szFile=0x00007ff877288a80, int nLine=1424, const wchar_t * szModule=0x0000000000000000, const wchar_t * szFormat=0x00007ff877263a3c, char * arglist=0x0000008d4ddcc448) Line 263 C++ msvcr120d.dll!_CrtDbgReportW(int nRptType=2, const wchar_t * szFile=0x00007ff877288a80, int nLine=1424, const wchar_t * szModule=0x0000000000000000, const wchar_t * szFormat=0x00007ff877263a3c, ...) Line 279 C++ msvcr120d.dll!_free_dbg_nolock(void * pUserData=0x000001a3b4141ca0, int nBlockUse=1) Line 1424 C++ msvcr120d.dll!_free_dbg(void * pUserData=0x000001a3b4141ca0, int nBlockUse=1) Line 1265 C++ msvcr120d.dll!operator delete(void * pUserData=0x000001a3b4141ca0) Line 54 C++ opencv_core2413d.dll!00007ff8773146a2() Unknown opencv_core2413d.dll!00007ff87731449c() Unknown opencv_core2413d.dll!00007ff87730f20d() Unknown opencv_core2413d.dll!00007ff87730ac61() Unknown opencv_core2413d.dll!00007ff87730b16c() Unknown opencv_core2413d.dll!00007ff87731756b ... (more)