diff --git a/GPU_version/vio/src/frame_handler_mono.cpp b/GPU_version/vio/src/frame_handler_mono.cpp
index 01074b8..a9d6d8d 100644
--- a/GPU_version/vio/src/frame_handler_mono.cpp
+++ b/GPU_version/vio/src/frame_handler_mono.cpp
@@ -164,12 +164,12 @@ FrameHandlerBase::UpdateResult FrameHandlerMono::processFrame()
   if(img_align.run(last_frame_, new_frame_)==0)return  RESULT_FAILURE;
   //assert (false);
   reprojector_.reprojectMap(new_frame_, overlap_kfs_);
-/*
+
   std::cout<<"Reprojection Map nPoint: "<<overlap_kfs_.back().second
              <<"\tnCell: "<<reprojector_.n_trials_<<"\t nMatches: "<<reprojector_.n_matches_
              <<"\t distance between two frames: "<<
              (last_frame_->T_f_w_.se2().translation()-new_frame_->T_f_w_.se2().translation()).norm()<<'\n';
-*/
+
   size_t sfba_n_edges_final=0;
   double sfba_thresh, sfba_error_init, sfba_error_final;
   pose_optimizer::optimizeGaussNewton(