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Update spatial-analysis-operations.md
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‎articles/azure-video-analyzer/video-analyzer-docs/spatial-analysis-operations.md

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@@ -289,16 +289,16 @@ See an example of [Person Count Operation](https://raw.githubusercontent.com/Azu
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| Name | Type | Description |
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| ------------------------- | ------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `zones` | list | List of zones. |
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| `name` | string | Friendly name for this zone. |
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| `polygon` | string | Each value pair represents the x,y for vertices of polygon. The polygon represents the areas in which people are tracked or counted. The float values represent the position of the vertex relative to the top-left corner. To calculate the absolute x, y values, you multiply these values with the frame size. `threshold` float events are egressed when the person is greater than this number of pixels inside the zone. The default value is 48 when type is `zonecrossing` and 16 when time is `DwellTime`. The specifies values are recommended in order to achieve maximum accuracy. |
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| `outputFrequency` | int | The rate at which events are egressed. When outputFrequency = X, every X event is egressed, ex. outputFrequency = 2 means every other event is output. The outputFrequency is applicable to both event and interval. |
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| `trigger` | string | The type of trigger for sending an event. Supported values are event for sending events when the count changes or interval for sending events periodically, irrespective of whether the count has changed or not. |
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| `focus` | string | The point location within person's bounding box used to calculate events. Focus's value can be footprint (the footprint of person), bottom_center (the bottom center of person's bounding box), center (the center of person's bounding box). The default value is footprint. |
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| `threshold` | float | Events are egressed when the person is greater than this number of pixels inside the zone. |
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| `enableFaceMaskClassifier` | boolean | **true** to enable detecting people wearing face masks in the video stream, **false** to disable it. By default this is disabled. Face mask detection requires input video width parameter to be 1920 "INPUT_VIDEO_WIDTH": 1920. The face mask attribute will not be return. |
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| `detectorNodeConfiguration` | string | The DETECTOR_NODE_CONFIG parameters for all Spatial Analysis operations. |
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| `trackerNodeConfiguration` | string | The TRACKER_NODE_CONFIG parameters for all Spatial Analysis operations. |
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| `zones` | **list** | List of zones. |
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| `name` | **string** | Friendly name for this zone. |
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| `polygon` | **string** | Each value pair represents the x,y for vertices of polygon. The polygon represents the areas in which people are tracked or counted. The float values represent the position of the vertex relative to the top-left corner. To calculate the absolute x, y values, you multiply these values with the frame size. `threshold` float events are egressed when the person is greater than this number of pixels inside the zone. The default value is 48 when type is `zonecrossing` and 16 when time is `DwellTime`. The specifies values are recommended in order to achieve maximum accuracy. |
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| `outputFrequency` | **int** | The rate at which events are egressed. When outputFrequency = X, every X event is egressed, ex. outputFrequency = 2 means every other event is output. The outputFrequency is applicable to both event and interval. |
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| `trigger` | **string** | The type of trigger for sending an event. Supported values are event for sending events when the count changes or interval for sending events periodically, irrespective of whether the count has changed or not. |
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| `focus` | **string** | The point location within person's bounding box used to calculate events. Focus's value can be footprint (the footprint of person), bottom_center (the bottom center of person's bounding box), center (the center of person's bounding box). The default value is footprint. |
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| `threshold` | **float** | Events are egressed when the person is greater than this number of pixels inside the zone. |
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| `enableFaceMaskClassifier` | **boolean** | **true** to enable detecting people wearing face masks in the video stream, **false** to disable it. By default this is disabled. Face mask detection requires input video width parameter to be 1920 "INPUT_VIDEO_WIDTH": 1920. The face mask attribute will not be return. |
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| `detectorNodeConfiguration` | **string** | The DETECTOR_NODE_CONFIG parameters for all Spatial Analysis operations. |
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| `trackerNodeConfiguration` | **string** | The TRACKER_NODE_CONFIG parameters for all Spatial Analysis operations. |
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#### Output:
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```json

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