diff --git a/Modules/US/USFilters/mitkUSImageVideoSource.cpp b/Modules/US/USFilters/mitkUSImageVideoSource.cpp
index 2174a70580..f830192c36 100644
--- a/Modules/US/USFilters/mitkUSImageVideoSource.cpp
+++ b/Modules/US/USFilters/mitkUSImageVideoSource.cpp
@@ -1,148 +1,155 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center, 
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without 
 even the implied warranty of MERCHANTABILITY or FITNESS FOR 
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 // MITK HEADER
 #include "mitkUSImageVideoSource.h"
 #include "mitkImage.h"
 
 //OpenCV HEADER
 #include <cv.h>
 #include <highgui.h>
 
 //Other
 #include <stdio.h>  
 
 
 mitk::USImageVideoSource::USImageVideoSource()
 : itk::Object()
 {
   m_VideoCapture = new cv::VideoCapture();
   m_IsVideoReady = false;
   m_IsGreyscale  = false;
   this->m_OpenCVToMitkFilter = mitk::OpenCVToMitkImageFilter::New();
   m_ResolutionOverrideWidth = 0;
   m_ResolutionOverrideHeight = 0;
   m_ResolutionOverride = false;
 }
 
 mitk::USImageVideoSource::~USImageVideoSource()
 {
 }
 
 void mitk::USImageVideoSource::SetVideoFileInput(std::string path)
 {
   m_VideoCapture->open(path.c_str());
   if(!m_VideoCapture->isOpened())  // check if we succeeded
     m_IsVideoReady = false;
   else     
     m_IsVideoReady = true;
 
   // If Override is enabled, use it
   if (m_ResolutionOverride) {
     m_VideoCapture->set(CV_CAP_PROP_FRAME_WIDTH, this->m_ResolutionOverrideWidth);
     m_VideoCapture->set(CV_CAP_PROP_FRAME_HEIGHT, this->m_ResolutionOverrideHeight);
   }
 }
 
     
 void mitk::USImageVideoSource::SetCameraInput(int deviceID)
 {
   m_VideoCapture->open(deviceID);
   if(!m_VideoCapture->isOpened())  // check if we succeeded
     m_IsVideoReady = false;
   else     
     m_IsVideoReady = true;
 
   // If Override is enabled, use it
   if (m_ResolutionOverride) {
     m_VideoCapture->set(CV_CAP_PROP_FRAME_WIDTH, this->m_ResolutionOverrideWidth);
     m_VideoCapture->set(CV_CAP_PROP_FRAME_HEIGHT, this->m_ResolutionOverrideHeight);
   }
 }
 
 void mitk::USImageVideoSource::SetColorOutput(bool isColor){
   m_IsGreyscale = !isColor;
 }
 
 void mitk::USImageVideoSource::SetRegionOfInterest(int topLeftX, int topLeftY, int bottomRightX, int bottomRightY)
 {
   // First, let's do some basic checks to make sure rectangle is inside of actual image
   if (topLeftX < 0) topLeftX = 0;
   if (topLeftY < 0) topLeftY = 0;
 
   // We can try and correct too large boundaries
   if (bottomRightX >  m_VideoCapture->get(CV_CAP_PROP_FRAME_WIDTH)) bottomRightX = m_VideoCapture->get(CV_CAP_PROP_FRAME_WIDTH);
   if (bottomRightX >  m_VideoCapture->get(CV_CAP_PROP_FRAME_HEIGHT)) bottomRightY = m_VideoCapture->get(CV_CAP_PROP_FRAME_HEIGHT);
 
   // Nothing to save, throw an exception
   if (topLeftX > bottomRightX) mitkThrow() << "Invalid boundaries supplied to USImageVideoSource::SetRegionOfInterest()";
   if (topLeftY > bottomRightY) mitkThrow() << "Invalid boundaries supplied to USImageVideoSource::SetRegionOfInterest()";
 
   m_CropRegion = cv::Rect(topLeftX, topLeftY, bottomRightX - topLeftX, bottomRightY - topLeftY);
 }
 
 void mitk::USImageVideoSource::RemoveRegionOfInterest(){
   m_CropRegion.width = 0;
   m_CropRegion.height = 0;
 }
 
 mitk::USImage::Pointer mitk::USImageVideoSource::GetNextImage()
 {
   // Loop video if necessary
   if (m_VideoCapture->get(CV_CAP_PROP_POS_AVI_RATIO) >= 0.99 )
     m_VideoCapture->set(CV_CAP_PROP_POS_AVI_RATIO, 0);
 
   // Setup pointers
   cv::Mat image;
   cv::Mat buffer;
 
   // Retrieve image
   *m_VideoCapture >> image; // get a new frame from camera
  
   // if Region of interest is set, crop image
   if (m_CropRegion.width > 0){
     buffer = image(m_CropRegion);
+    image.release();
     image = buffer;
   }
   // If this source is set to deliver greyscale images, convert it
   if (m_IsGreyscale)
   {
     cv::cvtColor(image, buffer, CV_RGB2GRAY, 1);
+    image.release();
     image = buffer;
   }
 
   // Convert to MITK-Image
   IplImage ipl_img = image;
 
   this->m_OpenCVToMitkFilter->SetOpenCVImage(&ipl_img);
   this->m_OpenCVToMitkFilter->Update();
 
   // OpenCVToMitkImageFilter returns a standard mitk::image. We then transform it into an USImage
   mitk::USImage::Pointer result = mitk::USImage::New(this->m_OpenCVToMitkFilter->GetOutput(0));
+  
+  // Clean up
+  buffer.release();
+  image.release();
+
   return result;
 }
 
 void mitk::USImageVideoSource::OverrideResolution(int width, int height){
   this->m_ResolutionOverrideHeight = height;
   this->m_ResolutionOverrideWidth = width;
 
   if (m_VideoCapture != 0)
   {
     m_VideoCapture->set(CV_CAP_PROP_FRAME_WIDTH, width);
     m_VideoCapture->set(CV_CAP_PROP_FRAME_HEIGHT, height);
   }
 }