FaceBoundingBoxInInfraredSpace 得到的深度空间的数值为空

解决方法：

hrface = CreateFaceFrameSource(myKinectSecsor, 0, THIS_APP_FACE_FRAME_FEATURES, &myFaceFrameSources[i]);

创建souce第三个单数，需要先绑定FaceFrameFeature code

FaceFrameFeatures::FaceFrameFeatures_BoundingBoxInColorSpace
|FaceFrameFeatures::FaceFrameFeatures_BoundingBoxInInfraredSpace

Did you set the FaceFrameFeature code to provide the InfraredSpace when you create the FaceFrameSource?         

// specify the required face frame results

FaceFrameFeaturesfaceFrameFeatures =

FaceFrameFeatures.BoundingBoxInColorSpace | FaceFrameFeatures.BoundingBoxInInfraredSpace;