User Tests

The validation of the HoviTron technology is split into three phases: PoC-1, US-1 (June 2021), PoC-2, US-2 (June 2022) & PoC-3 (November 2022).


PoC-1, US-1, June 2021

The first validation phase focused on the light-field visualization in the Creal head-mounted display (HMD). For this sake, a test scene was implemented in virtual reality (VR) providing perfect depth maps. This setup (proof-of-concept PoC-1) provided high experimental control and enabled the principal evaluation of the effects of light-field visualization on the use comfort.

In the first user-study (US-1), test-subjects performed realistic pick-and-place tasks and abstract depth matching tasks in VR via a haptic interface as depicted in the picture in the nearby panel.

The analysis of subjective and objective data confirmed that light-field visualization reduces the visual effort for the user in terms of mental and physical workload.

The link to the publication will be published on the Public Resources page soon.

PoC-2, US-2, June 2022

In this stage of the project, the video pipeline will not be fully real-time capable and the depth maps might be not of optimal quality, yet.

In the related second user-study (US-2), the participants will perform complex interaction tasks with the robot while receiving force feedback on the haptic interface and visual feedback from the robot’s static environment via the real-time light-field renderer STALF. The objects moved by the robot will be augmented in the metric view provided to the user.


PoC-3, November 2022

In the final phase, the whole video pipeline will be real-time enabling tests in a dynamic tele-robotic environment (proof-of-concept PoC-3).

Video Camera Lens


Computer Processor


Image by Hammer & Tusk