# Spatial Perception

Spatial perception combines [depth](https://docs.luxonis.com/overview/toplevel-features/depth.md), motion tracking, and on-device
AI to understand where things are in the real world—not just in pixel space.

## Use cases

 * Metric 3D awareness for AR overlays, robotic navigation, inspection, and digital twins
 * Robust pose estimates in dynamic scenes by blending visual features and IMU
 * Fully on-device: low latency, privacy-friendly, resilient to poor connectivity

## How it works

The main way to implement spacial perception in DepthAI is by implementing the
[SpatialDetectionNetwork](https://docs.luxonis.com/software-v3/depthai/depthai-components/nodes/spatial_detection_network.md)
which is essentially a combination of the
[DetectionNetwork](https://docs.luxonis.com/software-v3/depthai/depthai-components/nodes/detection_network.md) and
[SpatialLocationCalculator](https://docs.luxonis.com/software-v3/depthai/depthai-components/nodes/spatial_location_calculator.md).

## Code-less quick start with App Store

### Spatial Detections App

You can install the Spatial Detection App through our App Store. To install it you don't need to write a single line of code. This
is the quickest way to try spatial detection in action.

[Click here to see it in Hub](https://hub.luxonis.com/control/store/a_6B8FNwBKmrqB5NZ1NLjrDL?view=page)

## Build your own

### Guides and examples

### Spatial Detection Network example

Detect objects with YOLO neural network and determine their real locations.

[Spatial Detection Network
example](https://docs.luxonis.com/software-v3/depthai/examples/spatial_detection_network/spatial_detection.md)

### Collision avoidance example

Alert user of collision with camera.

[Collision avoidance
example](https://github.com/luxonis/oak-examples/tree/main/neural-networks/object-tracking/collision-avoidance)

### Spatial detection fusion example

Detect object with multiple cameras.

[Spatial detection fusion
example](https://github.com/luxonis/oak-examples/tree/main/tutorials/multiple-devices/spatial-detection-fusion)

### Need assistance?

Head over to [Discussion Forum](https://discuss.luxonis.com/) for technical support or any other questions you might have.