Make apply_nms configurable.

PiperOrigin-RevId: 371735494

official/vision/beta/configs/maskrcnn.py

@@ -144,6 +144,7 @@ class ROIAligner(hyperparams.Config):
 
 @dataclasses.dataclass
 class DetectionGenerator(hyperparams.Config):
+  apply_nms: bool = True
   pre_nms_top_k: int = 5000
   pre_nms_score_threshold: float = 0.05
   nms_iou_threshold: float = 0.5

official/vision/beta/configs/retinanet.py

@@ -106,6 +106,7 @@ class RetinaNetHead(hyperparams.Config):
 
 @dataclasses.dataclass
 class DetectionGenerator(hyperparams.Config):
+  apply_nms: bool = True
   pre_nms_top_k: int = 5000
   pre_nms_score_threshold: float = 0.05
   nms_iou_threshold: float = 0.5

official/vision/beta/modeling/factory.py

@@ -160,7 +160,7 @@ def build_maskrcnn(
       sample_offset=roi_aligner_config.sample_offset)
 
   detection_generator_obj = detection_generator.DetectionGenerator(
-      apply_nms=True,
+      apply_nms=generator_config.apply_nms,
       pre_nms_top_k=generator_config.pre_nms_top_k,
       pre_nms_score_threshold=generator_config.pre_nms_score_threshold,
       nms_iou_threshold=generator_config.nms_iou_threshold,
@@ -255,7 +255,7 @@ def build_retinanet(
       kernel_regularizer=l2_regularizer)
 
   detection_generator_obj = detection_generator.MultilevelDetectionGenerator(
-      apply_nms=True,
+      apply_nms=generator_config.apply_nms,
       pre_nms_top_k=generator_config.pre_nms_top_k,
       pre_nms_score_threshold=generator_config.pre_nms_score_threshold,
       nms_iou_threshold=generator_config.nms_iou_threshold,

official/vision/beta/modeling/maskrcnn_model.py

@@ -215,11 +215,21 @@ class MaskRCNNModel(tf.keras.Model):
           image_shape,
           regression_weights,
           bbox_per_class=(not self._config_dict['class_agnostic_bbox_pred']))
+      model_outputs.update({
+          'cls_outputs': class_outputs,
+          'box_outputs': box_outputs,
+      })
+      if self.detection_generator.get_config()['apply_nms']:
         model_outputs.update({
             'detection_boxes': detections['detection_boxes'],
             'detection_scores': detections['detection_scores'],
             'detection_classes': detections['detection_classes'],
-          'num_detections': detections['num_detections'],
+            'num_detections': detections['num_detections']
+        })
+      else:
+        model_outputs.update({
+            'decoded_boxes': detections['decoded_boxes'],
+            'decoded_box_scores': detections['decoded_box_scores']
         })
 
     if not self._include_mask:

official/vision/beta/modeling/retinanet_model.py

@@ -148,13 +148,22 @@ class RetinaNetModel(tf.keras.Model):
       final_results = self.detection_generator(
           raw_boxes, raw_scores, anchor_boxes, image_shape, raw_attributes)
       outputs = {
-          'detection_boxes': final_results['detection_boxes'],
-          'detection_scores': final_results['detection_scores'],
-          'detection_classes': final_results['detection_classes'],
-          'num_detections': final_results['num_detections'],
           'cls_outputs': raw_scores,
           'box_outputs': raw_boxes,
       }
+      if self.detection_generator.get_config()['apply_nms']:
+        outputs.update({
+            'detection_boxes': final_results['detection_boxes'],
+            'detection_scores': final_results['detection_scores'],
+            'detection_classes': final_results['detection_classes'],
+            'num_detections': final_results['num_detections']
+        })
+      else:
+        outputs.update({
+            'decoded_boxes': final_results['decoded_boxes'],
+            'decoded_box_scores': final_results['decoded_box_scores']
+        })
+
       if raw_attributes:
         outputs.update({
             'att_outputs': raw_attributes,

official/vision/beta/serving/detection.py

@@ -126,14 +126,23 @@ class DetectionModule(export_base.ExportModule):
         anchor_boxes=anchor_boxes,
         training=False)
 
+    if self.params.task.model.detection_generator.apply_nms:
       final_outputs = {
           'detection_boxes': detections['detection_boxes'],
           'detection_scores': detections['detection_scores'],
           'detection_classes': detections['detection_classes'],
-        'num_detections': detections['num_detections'],
-        'image_info': image_info
+          'num_detections': detections['num_detections']
       }
+    else:
+      final_outputs = {
+          'decoded_boxes': detections['decoded_boxes'],
+          'decoded_box_scores': detections['decoded_box_scores'],
+          'cls_outputs': detections['cls_outputs'],
+          'box_outputs': detections['box_outputs']
+      }
+
     if 'detection_masks' in detections.keys():
       final_outputs['detection_masks'] = detections['detection_masks']
 
+    final_outputs.update({'image_info': image_info})
     return final_outputs