We describe the implementation of a system which enables a user to interact with and modify an electronic holographic image using a force-feedback device. The force-feedback (or haptic) device is capable of sensing and reporting the 3D position of its hand-held stylus and displaying appropriate forces to the user. Thus, a user can feel and modify algorithmically specified shapes in the haptic workspace. We precisely register the haptic workspace with the free- standing, spatial image displayed by the MIT second-generate holographic video system (holovideo). In the coincident visuo-haptic workspace, a user can see, feel, and interact with synthetic objects that exhibit many of the properties one expects of real ones, and the spatial display enables synthetic objects to become a part of the user's manipulatory space. To the best of the authors' knowledge, this is the first time that such an interactive holographic system has been built.
Wendy J. Plesniak,
"Haptic interaction with holographic video images", Proc. SPIE 3293, Practical Holography XII, (18 March 1998); doi: 10.1117/12.303665; https://doi.org/10.1117/12.303665