diff --git a/CPU_version/README.md b/CPU_version/README.md
index 18904c2..a4bf9c7 100755
--- a/CPU_version/README.md
+++ b/CPU_version/README.md
@@ -53,10 +53,10 @@ I try to follow the ROS C++ style guide http://wiki.ros.org/CppStyleGuide
 You can edit the camera position in the launch file as (The IMU frame will rotate to align with camera frame based on the follwoing Eular angles):
 CPU_version/vio_svo/launch/Px30.launch
 
-    <!-- Initial camera orientation, make it point downwards -->
-    <param name="init_rx" value="-2.35619" />
-    <param name="init_ry" value="0.00" />
-    <param name="init_rz" value="0.00" />
+    <!-- IMU 2 Camera Frame -->
+    <param name="init_rx" value="1.88496" /><!--  90 + 18 -->
+    <param name="init_ry" value="0.0" /> <!--  90 -->
+    <param name="init_rz" value="0.0" /> <!-- 0  -->
     
 You can also edit the algorithm parameters in the follwoing file, please look at the config file to underestand the meaning of the parameters (CPU_version/svo/include/svo/config.h)