diff --git a/deploy/cpp/src/keypoint_postprocess.cc b/deploy/cpp/src/keypoint_postprocess.cc
index 4cb53d8aa2b4b6ac0811b156529b7a39f0a917b1..eb692b0a78bcf48ac96aa45b671300b9ff2db400 100644
--- a/deploy/cpp/src/keypoint_postprocess.cc
+++ b/deploy/cpp/src/keypoint_postprocess.cc
@@ -300,8 +300,6 @@ float PoseSmooth::OneEuroFilter(float x_cur, float x_pre, int loc) {
   float fc = this->fc_min + this->beta * abs(dx_cur_hat);
   this->alpha = this->smoothing_factor(te, fc);
   float x_cur_hat = this->ExpSmoothing(x_cur, x_pre);
-  // printf("alpha:%f, x_cur:%f, x_pre:%f, x_cur_hat:%f\n", this->alpha, x_cur,
-  // x_pre, x_cur_hat);
   this->x_prev_hat.keypoints[loc] = x_cur_hat;
   this->dx_prev_hat.keypoints[loc] = dx_cur_hat;
   return x_cur_hat;
diff --git a/deploy/python/det_keypoint_unite_infer.py b/deploy/python/det_keypoint_unite_infer.py
index 62d3b82f4512488a10319ef7cc3d145b316d7524..f0b80752ea087cd438bd3f87b9ff267a5c0be4dc 100644
--- a/deploy/python/det_keypoint_unite_infer.py
+++ b/deploy/python/det_keypoint_unite_infer.py
@@ -165,7 +165,7 @@ def topdown_unite_predict_video(detector,
             frame2, results, topdown_keypoint_detector, keypoint_batch_size,
             FLAGS.run_benchmark)
 
-        if FLAGS.smooth:
+        if FLAGS.smooth and len(keypoint_res['keypoint'][0])==1:
             current_keypoints = np.array(keypoint_res['keypoint'][0][0])
             smooth_keypoints = keypoint_smoothing.smooth_process(
                 current_keypoints)
@@ -231,9 +231,9 @@ class KeypointSmoothing(object):
         self.fc_min = fc_min
         self.beta = beta
 
-        if self.filter_type == 'one_euro':
+        if self.filter_type == 'OneEuro':
             self.smooth_func = self.one_euro_filter
-        elif self.filter_type == 'ema':
+        elif self.filter_type == 'EMA':
             self.smooth_func = self.exponential_smoothing
         else:
             raise ValueError('filter type must be one_euro or ema')
diff --git a/deploy/python/det_keypoint_unite_utils.py b/deploy/python/det_keypoint_unite_utils.py
index 129969df2db0e079e363a09c33861d1ff3cc6ca2..7de1295128d9151cf55a7b1e427d6ee946db8bc4 100644
--- a/deploy/python/det_keypoint_unite_utils.py
+++ b/deploy/python/det_keypoint_unite_utils.py
@@ -135,7 +135,7 @@ def argsparser():
     parser.add_argument(
         '--filter_type',
         type=str,
-        default='one_euro',
-        help='when set --smooth True, choose filter type you want to use, it can be one_euro or ema.'
+        default='OneEuro',
+        help='when set --smooth True, choose filter type you want to use, it can be [OneEuro] or [EMA].'
     )
     return parser