From 6b6f4b976eb932a71544b698d191dec0de22b5d7 Mon Sep 17 00:00:00 2001
From: SLAMWang <50091628+SLAMWang@users.noreply.github.com>
Date: Wed, 13 Apr 2022 19:23:37 +0800
Subject: [PATCH] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index a2ee7c0..fcc1650 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ This is an open source ROS package for real-time 6DOF SLAM using a 3D LIDAR.
 
 It is based on hdl_graph_slam and the steps to run our system are same with hdl-graph-slam.
 
-We also release UGICP.
+We also release [UGICP](https://github.com/SLAMWang/UGICP).
 
 Our paper is under review and will be released soon.
 FD-SLAM: Feature&Distribution-based 3D LiDAR SLAM method based on Surface Representation Refinement
@@ -58,6 +58,6 @@ The following ROS packages are required:
 - nmea_msgs
 - pcl_ros
 - [ndt_omp](https://github.com/koide3/ndt_omp)
-- [U_gicp](https://github.com/SLAMWang/UGICP) This is modified based on [fast_gicp](https://github.com/SMRT-AIST/fast_gicp) by us.
+- [U_gicp](https://github.com/SLAMWang/UGICP) This is modified based on [fast_gicp](https://github.com/SMRT-AIST/fast_gicp) by us. We use UGICP for keyframe matching.