---
title: computationAccuracy
framework: vision
role: symbol
role_heading: Instance Property
path: vision/trackopticalflowrequest/computationaccuracy-swift.property
---

# computationAccuracy

The level of accuracy to compute the optical flow.

## Declaration

```swift
final var computationAccuracy: TrackOpticalFlowRequest.ComputationAccuracy { get set }
```

## Discussion

Discussion The computational time trends with accuracy level. The default value is TrackOpticalFlowRequest.ComputationAccuracy.high.

## See Also

### Configuring a request

- [TrackOpticalFlowRequest.ComputationAccuracy](vision/trackopticalflowrequest/computationaccuracy-swift.enum.md)
- [outputPixelFormatType](vision/trackopticalflowrequest/outputpixelformattype.md)
- [supportedOutputPixelFormatTypes](vision/trackopticalflowrequest/supportedoutputpixelformattypes.md)