Fix args for infer (#3839)

configs/sparse_rcnn/_base_/sparse_rcnn_reader.yml

@@ -39,6 +39,6 @@ TestReader:
   - Permute: {}
   batch_transforms:
   - PadBatch: {pad_to_stride: 32}
-  - Gt2SparseRCNNTarget: {train: false}
+  - Gt2SparseRCNNTarget: {}
   batch_size: 1
   shuffle: false

ppdet/data/transform/batch_operators.py

@@ -895,7 +895,6 @@ class Gt2SparseRCNNTarget(BaseOperator):
                 sample["scale_factor_wh"] = np.array(
                     [sample["scale_factor"][1], sample["scale_factor"][0]],
                     dtype=np.float32)
-                sample.pop("scale_factor")
             else:
                 sample["scale_factor_wh"] = np.array(
                     [1.0, 1.0], dtype=np.float32)