[1] In his Argus and Rover projects of the late 1990s, Teller was an early pioneer in the use of mobile cameras and geolocation to build three-dimensional models of cities.

His dissertation, "Visibility Computations in Densely Occluded Polyhedral Environments," was supervised by Carlo H.

[8] His work involved, in particular, creating various assistive technology robots and devices for people with disabilities.

[12] He also worked on developing technology for reducing the danger of first responders being hit by the passing vehicles while stopped to deal with highway accidents.

[22][23] In 2024, Zimmerman published a book about the impact of her husband's death titled Us, After: A Memoir of Love and Suicide.