@java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
        return true;
      }
      if (!(obj
          instanceof
          com.google.cloud.visionai.v1.VideoObjectTrackingPredictionResult.DetectedObject)) {
        return super.equals(obj);
      }
      com.google.cloud.visionai.v1.VideoObjectTrackingPredictionResult.DetectedObject other =
          (com.google.cloud.visionai.v1.VideoObjectTrackingPredictionResult.DetectedObject) obj;

      if (!getId().equals(other.getId())) return false;
      if (!getDisplayName().equals(other.getDisplayName())) return false;
      if (hasBoundingBox() != other.hasBoundingBox()) return false;
      if (hasBoundingBox()) {
        if (!getBoundingBox().equals(other.getBoundingBox())) return false;
      }
      if (java.lang.Float.floatToIntBits(getConfidence())
          != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
      if (getTrackId() != other.getTrackId()) return false;
      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
      return true;
    }
<pre>
The same object may be identified on muitiple frames which are typical
adjacent. The set of frames where a particular object has been detected
form a track. This track_id can be used to trace down all frames for an
detected object.
</pre>

<code>int64 track_id = 5;</code>

@return The trackId.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/VideoObjectTrackingPredictionResult.java