Media Server 12.11

# Object Class Recognition Results

The following XML shows two records produced by object class recognition.

    <output>
      <record>
        ...
        <trackname>ObjectClassRecognition.Result</trackname>
        <ObjectClassRecognitionResult>
          <id>d5a249f7-3207-4a41-9a23-0b8ac4aafbf6</id>
          <classification>
            <identifier>van</identifier>
            <confidence>100</confidence>
          </classification>
          <recognizer>roadscene</recognizer>
          <region>
            <left>31</left>
            <top>54</top>
            <width>206</width>
            <height>159</height>
          </region>
          <parentID>...</parentID>
        </ObjectClassRecognitionResult>
      </record>
      <record>
        ...
        <trackname>ObjectClassRecognition.Result</trackname>
        <ObjectClassRecognitionResult>
          <id>d5a249f7-3207-4a41-9a23-0b8ac4aafbf7</id>
          <classification>
            <identifier>person</identifier>
            <confidence>99.94</confidence>
          </classification>
          <recognizer>roadscene</recognizer>
          <region>
            <left>243</left>
            <top>33</top>
            <width>96</width>
            <height>182</height>
          </region>
          <parentID>...</parentID>
        </ObjectClassRecognitionResult>
      </record>
    </output>

Each record contains the following information:

- The `id` element provides a unique identifier for the recognized object.

- The `classification` element provides information about the recognized object.

  - The `identifier` element provides the identifier of the class that resulted in the object being recognized.
  - The `confidence` element provides the confidence score (from 0 to 100).
- The `recognizer` element provides the name of the object class recognizer that was used.
- The `region` element provides the location of the object in the image or video frame.

- The `parentID` element is empty, unless you configure the analysis engine with `Region=Input` in which case it contains the UUID of the input record. This provides a way to link the result with other records (from another analysis task) that supplied the region to analyze. To generate a single record combining the information, you can use the Combine ESP engine and the example Lua script `parentuuidMatch.lua`.

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Version 12.11 | Last updated February 2022

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Product: IDOL Media Server 12.11

Topic Title: Object Class Recognition Results