I recently took a look into the MultipeerConnectivity framework by Apple when I worked on an iPhone-based AR project. The MultipeerConnectivity framework is a lot easier for Apple’s ARkit to create a multiuser AR experience. Unlike conventional connections, the MultipeerConnectivity does not have to assign hosts or guests if you would like to define all…
When the countdown run from 10 to 0 and the ball dropped in Time Square, we had to wave goodbye to 2019 and to all the happiness and sadness that came along with it. In the meantime, our new journey irreversibly boarded on the ship of 2020 which has just been christened by its champagne…
Some people wanted to Disable Guardian on the Oculus Quest (thanks to Mike for sharing the helpful instruction). A lot of them might have the requirement for obtaining the guardian boundary in their apps. In this blog, I am going to share the method to obtain and visualize the guardian boundaries in your Unity app.…
I have been playing with Pytorch recently and found out that Pytorch is a much easier tool for me to start a machine learning project than Tensorflow. Pytorch uses a different design with Tensorflow and does not need to setup sessions or placeholders, so I feel the setup of Pytorch models is more intuitive. Pytorch’s…
This week I setup a 15-meter walkway in the lab for the obstacle experiment in walking paradigm. I chose to use Vive pro with a wireless adapter to accomplish a wireless VR experience. Compared with Oculus Quest, the wireless Vive pro is much heavier, and it is still constrained by the coverage of Lighthouses and…
A few weeks earlier, I talked about two papers I read regarding gait balance when fixed or suddenly appeared obstacles are involved. The papers are Age Effects on Strategies Used to Avoid Obstacles, and Anxiety-mediated gait adaptations reduce errors of obstacle negotiation among younger and older adults: Implications for fall risk. We have been looking for protocols and…
On Oct 25, we are going to present a poster in a research showcase organized by The Center of Health and Rehabilitation Research (CoHRR). The CoHRR provides opportunities for networking and discussion in all kinds of research fields related to physical rehabilitation. The project we are going to present is our foot analysis system. The…
Our balance assessment research is currently at the point of transforming from a stationary standing paradigm into the dynamic walking paradigm. In the standing paradigm, we explored the assessment of anxiety-caused imbalance through various intensity levels of sound and visual flow. However, the dynamic and stationary paradigms are so different that we cannot use the…
There was a previous blog I wrote about Tobii eye tracking system embedded with HTC Vive. A few friends who are interested in it asked me about my experience with the eye tracking system, so I feel it is good to talk a bit more about it in this blog. There are currently two SDKs…
Recently, I had a chance to test the new released HTC Vive Pro Eye headset. The headset is the first VR headset integrated eye tracking, and it is hard to notice the hardware for eye tracking when compared with a regular HTC Vive Pro. Vive Pro integrated the eye-tracking technology from Tobii, which is a…