Parse deepmac meta arch correctly.

PiperOrigin-RevId: 372953929

research/object_detection/builders/model_builder.py

@@ -1056,6 +1056,21 @@ def _build_center_net_model(center_net_config, is_training, add_summaries):
     object_detection_params = object_detection_proto_to_params(
         center_net_config.object_detection_task)
 
+  if center_net_config.HasField('deepmac_mask_estimation'):
+    logging.warn(('Building experimental DeepMAC meta-arch.'
+                  ' Some features may be omitted.'))
+    deepmac_params = deepmac_meta_arch.deepmac_proto_to_params(
+        center_net_config.deepmac_mask_estimation)
+    return deepmac_meta_arch.DeepMACMetaArch(
+        is_training=is_training,
+        add_summaries=add_summaries,
+        num_classes=center_net_config.num_classes,
+        feature_extractor=feature_extractor,
+        image_resizer_fn=image_resizer_fn,
+        object_center_params=object_center_params,
+        object_detection_params=object_detection_params,
+        deepmac_params=deepmac_params)
+
   keypoint_params_dict = None
   if center_net_config.keypoint_estimation_task:
     label_map_proto = label_map_util.load_labelmap(