In this work we present how Augmented Reality (AR) can be used to create an intimate integration of process data with
the workspace of an industrial CNC (computer numerical control) machine. AR allows us to combine interactive
computer graphics with real objects in a physical environment - in this case, the workspace of an industrial lathe.
ASTOR is an autostereoscopic optical see-through spatial AR system, which provides real-time 3D visual feedback
without the need for user-worn equipment, such as head-mounted displays or sensors for tracking. The use of a
transparent holographic optical element, overlaid onto the safety glass, allows the system to simultaneously provide
bright imagery and clear visibility of the tool and workpiece. The system makes it possible to enhance visibility of
occluded tools as well as to visualize real-time data from the process in the 3D space. The graphics are geometrically
registered with the workspace and provide an intuitive representation of the process, amplifying the user's understanding
and simplifying machine operation.
We present a novel walk-through 3D display based on the patented FogScreen, an "immaterial" indoor 2D projection screen, which enables high-quality projected images in free space. We extend the basic 2D FogScreen setup in three major ways. First, we use head tracking to provide correct perspective rendering for a single user. Second, we add support for multiple types of stereoscopic imagery. Third, we present the front and back views of the graphics content on the two sides of the FogScreen, so that the viewer can cross the screen to see the content from the back. The result is a wall-sized, immaterial display that creates an engaging 3D visual.