---
title: kVTCompressionPropertyKey_CameraCalibrationDataLensCollection
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtcompressionpropertykey_cameracalibrationdatalenscollection
---

# kVTCompressionPropertyKey_CameraCalibrationDataLensCollection

## Declaration

```swift
let kVTCompressionPropertyKey_CameraCalibrationDataLensCollection: CFString
```

## Discussion

Discussion Specifies intrinsic and extrinsic parameters for single or multiple lenses. The property value is an array of dictionaries describing the camera calibration data for each lens. The camera calibration data includes intrinsics and extrinics with other parameters. For a stereoscopic camera system, the left and right lens signaling can be done with the kVTCompressionPropertyCameraCalibrationKey_LensRole key and its value. The following keys are required in each kVTCompressionPropertyKey_CameraCalibrationDataLensCollection dictionary. kVTCompressionPropertyCameraCalibrationKey_LensAlgorithmKind kVTCompressionPropertyCameraCalibrationKey_LensDomain kVTCompressionPropertyCameraCalibrationKey_LensIdentifier kVTCompressionPropertyCameraCalibrationKey_LensRole kVTCompressionPropertyCameraCalibrationKey_LensDistortions kVTCompressionPropertyCameraCalibrationKey_LensFrameAdjustmentsPolynomialX kVTCompressionPropertyCameraCalibrationKey_LensFrameAdjustmentsPolynomialY kVTCompressionPropertyCameraCalibrationKey_RadialAngleLimit kVTCompressionPropertyCameraCalibrationKey_IntrinsicMatrix kVTCompressionPropertyCameraCalibrationKey_IntrinsicMatrixProjectionOffset kVTCompressionPropertyCameraCalibrationKey_IntrinsicMatrixReferenceDimensions kVTCompressionPropertyCameraCalibrationKey_ExtrinsicOriginSource kVTCompressionPropertyCameraCalibrationKey_ExtrinsicOrientationQuaternion

## See Also

### Camera Calibration

- [kVTCompressionPropertyCameraCalibrationKey_ExtrinsicOrientationQuaternion](videotoolbox/kvtcompressionpropertycameracalibrationkey_extrinsicorientationquaternion.md)
- [kVTCompressionPropertyCameraCalibrationKey_ExtrinsicOriginSource](videotoolbox/kvtcompressionpropertycameracalibrationkey_extrinsicoriginsource.md)
- [kVTCompressionPropertyCameraCalibrationKey_IntrinsicMatrix](videotoolbox/kvtcompressionpropertycameracalibrationkey_intrinsicmatrix.md)
- [kVTCompressionPropertyCameraCalibrationKey_IntrinsicMatrixProjectionOffset](videotoolbox/kvtcompressionpropertycameracalibrationkey_intrinsicmatrixprojectionoffset.md)
- [kVTCompressionPropertyCameraCalibrationKey_IntrinsicMatrixReferenceDimensions](videotoolbox/kvtcompressionpropertycameracalibrationkey_intrinsicmatrixreferencedimensions.md)
- [kVTCompressionPropertyCameraCalibrationKey_LensAlgorithmKind](videotoolbox/kvtcompressionpropertycameracalibrationkey_lensalgorithmkind.md)
- [kVTCompressionPropertyCameraCalibrationKey_LensDistortions](videotoolbox/kvtcompressionpropertycameracalibrationkey_lensdistortions.md)
- [kVTCompressionPropertyCameraCalibrationKey_LensDomain](videotoolbox/kvtcompressionpropertycameracalibrationkey_lensdomain.md)
- [kVTCompressionPropertyCameraCalibrationKey_LensFrameAdjustmentsPolynomialX](videotoolbox/kvtcompressionpropertycameracalibrationkey_lensframeadjustmentspolynomialx.md)
- [kVTCompressionPropertyCameraCalibrationKey_LensFrameAdjustmentsPolynomialY](videotoolbox/kvtcompressionpropertycameracalibrationkey_lensframeadjustmentspolynomialy.md)
- [kVTCompressionPropertyCameraCalibrationKey_LensIdentifier](videotoolbox/kvtcompressionpropertycameracalibrationkey_lensidentifier.md)
- [kVTCompressionPropertyCameraCalibrationKey_LensRole](videotoolbox/kvtcompressionpropertycameracalibrationkey_lensrole.md)
- [kVTCompressionPropertyCameraCalibrationKey_RadialAngleLimit](videotoolbox/kvtcompressionpropertycameracalibrationkey_radialanglelimit.md)