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# HumanBodyPose3DObservation.EstimationTechnique

Constants that identify body height estimation techniques.

```
enum EstimationTechnique
```

## Topics

### Getting estimation techniques

[`case measured`](/documentation/Vision/HumanBodyPose3DObservation/EstimationTechnique/measured)

A technique that uses LiDAR depth data to measure body height, in meters.

[`case reference`](/documentation/Vision/HumanBodyPose3DObservation/EstimationTechnique/reference)

A technique that uses a reference height.

## Relationships

### Conforms To

[`Encodable`](/documentation/Swift/Encodable)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

[`Decodable`](/documentation/Swift/Decodable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

---

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