diff --git a/guilib/include/rtabmap/gui/MainWindow.h b/guilib/include/rtabmap/gui/MainWindow.h
index e1490680..13111c39 100644
--- a/guilib/include/rtabmap/gui/MainWindow.h
+++ b/guilib/include/rtabmap/gui/MainWindow.h
@@ -104,6 +104,7 @@ public:
 
 public slots:
 	void processStats(const rtabmap::Statistics & stat);
+	void updateCacheFromDatabase(const QString & path);
 
 protected:
 	virtual void closeEvent(QCloseEvent* event);
@@ -153,6 +154,7 @@ private slots:
 	void postGoal(const QString & goal);
 	void cancelGoal();
 	void label();
+	void updateCacheFromDatabase();
 	void downloadAllClouds();
 	void downloadPoseGraph();
 	void clearTheCache();
diff --git a/guilib/src/MainWindow.cpp b/guilib/src/MainWindow.cpp
index a6873854..947628f7 100644
--- a/guilib/src/MainWindow.cpp
+++ b/guilib/src/MainWindow.cpp
@@ -38,6 +38,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "rtabmap/core/ParamEvent.h"
 #include "rtabmap/core/Signature.h"
 #include "rtabmap/core/Memory.h"
+#include "rtabmap/core/DBDriver.h"
 
 #include "rtabmap/gui/ImageView.h"
 #include "rtabmap/gui/KeypointItem.h"
@@ -311,6 +312,7 @@ MainWindow::MainWindow(PreferencesDialog * prefDialog, QWidget * parent) :
 	connect(_ui->actionDelete_memory, SIGNAL(triggered()), this , SLOT(deleteMemory()));
 	connect(_ui->actionDownload_all_clouds, SIGNAL(triggered()), this , SLOT(downloadAllClouds()));
 	connect(_ui->actionDownload_graph, SIGNAL(triggered()), this , SLOT(downloadPoseGraph()));
+	connect(_ui->actionUpdate_cache_from_database, SIGNAL(triggered()), this, SLOT(updateCacheFromDatabase()));
 	connect(_ui->menuEdit, SIGNAL(aboutToShow()), this, SLOT(updateEditMenu()));
 	connect(_ui->actionDefault_views, SIGNAL(triggered(bool)), this, SLOT(setDefaultViews()));
 	connect(_ui->actionAuto_screen_capture, SIGNAL(triggered(bool)), this, SLOT(selectScreenCaptureFormat(bool)));
@@ -3990,6 +3992,51 @@ void MainWindow::label()
 	}
 }
 
+void MainWindow::updateCacheFromDatabase()
+{
+	QString dir = getWorkingDirectory();
+	QString path = QFileDialog::getOpenFileName(this, tr("Select file"), dir, tr("RTAB-Map database files (*.db)"));
+	if(!path.isEmpty())
+	{
+		updateCacheFromDatabase(path);
+	}
+}
+
+void MainWindow::updateCacheFromDatabase(const QString & path)
+{
+	if(!path.isEmpty())
+	{
+		DBDriver * driver = DBDriver::create();
+		if(driver->openConnection(path.toStdString()))
+		{
+			UINFO("Update cache...");
+			_initProgressDialog->resetProgress();
+			_initProgressDialog->show();
+			_initProgressDialog->appendText(tr("Downloading the map from \"%1\" (without poses and links)...")
+					.arg(path));
+
+			std::set<int> ids;
+			driver->getAllNodeIds(ids, true);
+			std::list<Signature*> signaturesList;
+			driver->loadSignatures(std::list<int>(ids.begin(), ids.end()), signaturesList);
+			std::map<int, Signature> signatures;
+			driver->loadNodeData(signaturesList);
+			for(std::list<Signature *>::iterator iter=signaturesList.begin(); iter!=signaturesList.end(); ++iter)
+			{
+				signatures.insert(std::make_pair((*iter)->id(), *(*iter)));
+				delete *iter;
+			}
+			RtabmapEvent3DMap event(signatures, _currentPosesMap, _currentLinksMap);
+			processRtabmapEvent3DMap(event);
+		}
+		else
+		{
+			QMessageBox::warning(this, tr("Update cache"), tr("Failed to open database \"%1\"").arg(path));
+		}
+		delete driver;
+	}
+}
+
 void MainWindow::downloadAllClouds()
 {
 	QStringList items;
@@ -5775,6 +5822,7 @@ void MainWindow::changeState(MainWindow::State newState)
 	_ui->actionDump_the_memory->setVisible(!monitoring);
 	_ui->actionDump_the_prediction_matrix->setVisible(!monitoring);
 	_ui->actionGenerate_map->setVisible(!monitoring);
+	_ui->actionUpdate_cache_from_database->setVisible(monitoring);
 	_ui->menuExport_poses->menuAction()->setVisible(!monitoring);
 	_ui->actionOpen_working_directory->setVisible(!monitoring);
 	_ui->actionData_recorder->setVisible(!monitoring);
diff --git a/guilib/src/ui/mainWindow.ui b/guilib/src/ui/mainWindow.ui
index 84370da3..fbb17537 100644
--- a/guilib/src/ui/mainWindow.ui
+++ b/guilib/src/ui/mainWindow.ui
@@ -75,6 +75,7 @@
     </widget>
     <addaction name="actionDownload_all_clouds"/>
     <addaction name="actionDownload_graph"/>
+    <addaction name="actionUpdate_cache_from_database"/>
     <addaction name="actionClear_cache"/>
     <addaction name="separator"/>
     <addaction name="actionView_high_res_point_cloud"/>
@@ -1277,6 +1278,11 @@
     <string>Send waypoints...</string>
    </property>
   </action>
+  <action name="actionUpdate_cache_from_database">
+   <property name="text">
+    <string>Update cache from a local database copy...</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>