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# VNHumanBodyPose3DObservation.HeightEstimation

Constants that identify body height estimation techniques.

```
enum HeightEstimation
```

## Topics

### Techniques

[`VNHumanBodyPose3DObservationHeightEstimationMeasured`](/documentation/Vision/VNHumanBodyPose3DObservation/HeightEstimation-swift.enum/measured)

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

[`VNHumanBodyPose3DObservationHeightEstimationReference`](/documentation/Vision/VNHumanBodyPose3DObservation/HeightEstimation-swift.enum/reference)

A technique that uses a reference height.

[`VNHumanBodyPose3DObservationHeightEstimationMeasured`](/documentation/Vision/VNHumanBodyPose3DObservation/HeightEstimation-swift.enum/measured)

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

[`VNHumanBodyPose3DObservationHeightEstimationReference`](/documentation/Vision/VNHumanBodyPose3DObservation/HeightEstimation-swift.enum/reference)

A technique that uses a reference height.

### Creating a Technique

[`init(rawValue:)`](/documentation/Vision/VNHumanBodyPose3DObservation/HeightEstimation-swift.enum/init(rawValue:))

## Relationships

### Conforms To

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

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

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

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

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

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

---

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