How to get the screen coordinates of PXCMFaceData.HeadPosition？

[天虞]

In addition：

PXCMFaceData.HeadPosition.headCenter = DetectionData.QueryBoundingRect().centerPos?

Thanks.

[MartyG]

The QueryHeadPosition instruction, which is part of the HeadPosition instruction set, may be what you need. The documentation says that "the QueryHeadPosition function returns the face center point position."

https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/queryheadposition_posedata_pxcfacedata.html QueryHeadPosition

[天虞]

QueryHeadPosition returns is the depthCamere space, not the screen space...

[MartyG]

So if you want the screen space (image) coordinates, I think you are looking to project to Color coordinates?

The best match I could find to what you wanted was using the Image component of the LandmarkPoint instruction to get the color image coordinates of a landmark point on the face

https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/landmarkpoint_pxcfacedata.html LandmarkPoint (+JS,+UWP)

An alternative to looking for a specific face landmark would be to get the color coordinates using the more general ProjectCameraToColor instruction.

https://software.intel.com/sites/landingpage/realsense/camera-sdk/v1.1/documentation/html/projectcameratocolor_pxcprojection.html ProjectCameraToColor