public com.google.cloud.videointelligence.v1p3beta1.NormalizedBoundingBox.Builder
        getNormalizedBoundingBoxBuilder() {
      bitField0_ |= 0x00000001;
      onChanged();
      return getNormalizedBoundingBoxFieldBuilder().getBuilder();
    }
<pre>
The normalized bounding box location of this object track for the frame.
</pre>

<code>
.google.cloud.videointelligence.v1p3beta1.NormalizedBoundingBox normalized_bounding_box = 1;
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/ObjectTrackingFrame.java