From 911112265a99b17f487f4902e1e979f0dc784d7f Mon Sep 17 00:00:00 2001
From: wangxinxin08 <69842442+wangxinxin08@users.noreply.github.com>
Date: Sat, 19 Mar 2022 20:38:52 +0800
Subject: [PATCH] fix register_buffer (#5398)

---
 ppdet/modeling/bbox_utils.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ppdet/modeling/bbox_utils.py b/ppdet/modeling/bbox_utils.py
index db8ef9e42..11f504f80 100644
--- a/ppdet/modeling/bbox_utils.py
+++ b/ppdet/modeling/bbox_utils.py
@@ -763,8 +763,9 @@ def batch_distance2bbox(points, distance, max_shapes=None):
         Tensor: Decoded bboxes, "x1y1x2y2" format.
     """
     lt, rb = paddle.split(distance, 2, -1)
-    x1y1 = points - lt
-    x2y2 = points + rb
+    # while tensor add parameters, parameters should be better placed on the second place
+    x1y1 = -lt + points
+    x2y2 = rb + points
     out_bbox = paddle.concat([x1y1, x2y2], -1)
     if max_shapes is not None:
         max_shapes = max_shapes.flip(-1).tile([1, 2])
-- 
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