Fix tweaks

configs/kitti/dv_mvx-v2_second_secfpn_fpn-fusion_adamw_2x8_80e_kitti-3d-3class.py

@@ -63,7 +63,7 @@ model = dict(
         type='SECONDFPN',
         in_channels=[128, 256],
         upsample_strides=[1, 2],
-        num_upsample_filters=[256, 256],
+        out_channels=[256, 256],
     ),
     pts_bbox_head=dict(
         type='SECONDHead',

configs/nus/hv_pointpillars_secfpn_sbn-all_4x8_2x_nus-3d.py

@@ -41,7 +41,7 @@ model = dict(
         norm_cfg=dict(type='naiveSyncBN2d', eps=1e-3, momentum=0.01),
         in_channels=[64, 128, 256],
         upsample_strides=[1, 2, 4],
-        num_upsample_filters=[128, 128, 128],
+        out_channels=[128, 128, 128],
     ),
     pts_bbox_head=dict(
         type='Anchor3DVeloHead',

tests/test_fpn.py

@@ -8,7 +8,7 @@ def test_secfpn():
         upsample_strides=[1, 2],
         out_channels=[4, 6],
     )
-    from mmdet.models.builders import build_neck
+    from mmdet.models.builder import build_neck
     neck = build_neck(neck_cfg)
     assert neck.deblocks[0][0].in_channels == 2
     assert neck.deblocks[1][0].in_channels == 3