Here are the classes, structs, unions and interfaces with brief descriptions:

CBallTrackingFilter	A TrackingFilter with some specifics for tracking a ball in flight
CColorComboWidget
CFrameConverter	Recieves frames (as cv::Mat), processes them (ideally asynchronously) and emits them as a QImage (i.e
CKalmanFilterPlus	A cv::KalmanFilter which also supports some 'forgetful' functionality
CKFBallTracker	Contains most of the logic for live-tracking objects
CKFPrediction	Object which represents a prediction from the Kalman filter
CLiveFitWindow	The window which manages all logic for the LiveFit application
CPersonTrackingFilter	A TrackingFilter which contains the necessary logic to find people in frames
CProjectorDragCorner	A draggable widget for managing where the projector corners lie in the video frame
CProjectorWindow	A display widget for projector coordinates on the projector
CTrackingBall	A ball which has been tracked by the software
CTrackingFilter	A wrapper around a KalmanFilter type object; additional logic can be provided through extension
CTrackingStream	An object which owns some sort of input video stream, manages running it (and any tracking, etc) and emits cv::Mat frames and tracked objects
CTrackVideoWidget	Displays a video stream and tracking data