diff --git a/perception/image_projection_based_fusion/config/segmentation_pointcloud_fusion.param.yaml b/perception/image_projection_based_fusion/config/segmentation_pointcloud_fusion.param.yaml
index 79a8b860ebdd3..2120a909cd672 100644
--- a/perception/image_projection_based_fusion/config/segmentation_pointcloud_fusion.param.yaml
+++ b/perception/image_projection_based_fusion/config/segmentation_pointcloud_fusion.param.yaml
@@ -31,10 +31,9 @@
 
     # debug
     debug_mode: false
-    filter_scope_min_x: -100
-    filter_scope_max_x: 100
-    filter_scope_min_y: -100
-    filter_scope_max_y: 100
-    filter_scope_min_z: -100
-    filter_scope_max_z: 100
-    image_buffer_size: 15
+    filter_scope_min_x: -100.0
+    filter_scope_max_x: 100.0
+    filter_scope_min_y: -100.0
+    filter_scope_max_y: 100.0
+    filter_scope_min_z: -100.0
+    filter_scope_max_z: 100.0