OpenCV SurfFeatureDetector堆损坏

Question

我使用这个小代码：

    Mat roulette_template = imread( "roulette_vorlage.jpg", CV_LOAD_IMAGE_GRAYSCALE );
    Mat greyMat = imread( "roulette_vorlage.jpg", CV_LOAD_IMAGE_GRAYSCALE );
    int minHessian = 400;
    SurfFeatureDetector detector( minHessian );
    std::vector<KeyPoint> keypoints_1, keypoints_2;

    detector.detect( roulette_template, keypoints_1 );
    detector.detect( greyMat, keypoints_2 );

在detector.dectet之后，堆已损坏。 当我在我的其他项目中使用此代码段时，它工作正常。 它在我的ProcessingCallback函数中被调用，该函数从我的framegrabber中调用。 我没有使用任何opencv函数从我的相机获取immage。

整个代码看起来像这样：

void PicoloVideo::ProcessingCallback2(PMCSIGNALINFO SigInfo)
{  
    switch(SigInfo->Signal)
    {
        case MC_SIG_SURFACE_PROCESSING:
            // Update "current" surface address pointer
            McGetParamInt (SigInfo->SignalInfo, MC_SurfaceAddr, (PINT32) &m_pCurrent); 


            // Post screen refresh message only if previous refresh completed
            if(m_bScreenRefreshCompleted)
            { 
                Mat roulette_template = imread( "roulette_vorlage.jpg", CV_LOAD_IMAGE_GRAYSCALE );  
                Mat greyMat = imread( "roulette_vorlage.jpg", CV_LOAD_IMAGE_GRAYSCALE );
                int minHessian = 400;
                SurfFeatureDetector detector( minHessian );
                std::vector<KeyPoint> keypoints_1, keypoints_2;

                detector.detect( roulette_template, keypoints_1 );
                detector.detect( greyMat, keypoints_2 );

                if(waitKey(5) >= 0) break;
            }
            break;
        case MC_SIG_END_CHANNEL_ACTIVITY:
            m_bChannelActive = FALSE; 
            break;
        case MC_SIG_ACQUISITION_FAILURE:
            //MessageBox(NULL, "Acquisition Failure !", "PicoloVideo", MB_OK);
            break;
        default:
            break;

    }
}

如果不知道为什么我会在堆中获得probs。 任何人都知道为什么检测到东西会杀死它？