@java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }
<pre>
The confidence threshold we perform filtering on the labels from
video-level and shot-level detections. If not set, it's set to 0.3 by
default. The valid range for this threshold is [0.1, 0.9]. Any value set
outside of this range will be clipped.
Note: For best results, follow the default threshold. We will update
the default threshold everytime when we release a new model.
</pre>

<code>float video_confidence_threshold = 5;</code>

@return The videoConfidenceThreshold.
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/LabelDetectionConfig.java