Frame Rates, Refresh Rates and Fast Paced Medical Simulations

We were recently contacted by a physician from a medical university who was referred to us by a colleague who is one of our current clients. The project we are almost finished with, is a medical simulation tool to help assist physician-grade swallowing disorders. It consists of around 100 individual and unique custom 3D medical anatomy animations and a library of almost the same number of fluoroscopy x-ray videos that can be mixed, matched and compared in our custom-made, two-screen video player.

The new project for which we are developing a proposal is also just as interesting but offers challenges of a different kind. The subject of this new project is the human voice and our tool that makes it possible, the movement and vibration of vocal folds. We’re starting off with some testing prototypes, pushing the limits of the tools we use to build various types of medical simulations. It’s an interesting mix of frame rates, refresh rates and the intricacies of human visual perception.

While it is said the human eye can detect 24 frames per second of motion, the standard frame rate for movies on film, a projector actually flashes light behind each frame 2 or 3 times, resulting in an image being projected at around 48 or 72 frames per second. With numbers like these, vocal vibrations being measured in milliseconds and nuances in technology on a per user basis (such as video card refresh rate, monitor response time and computer processor speed and usage), simulating the speed and accuracy of vocal fold vibratory features in a fashion that is universal to all is pretty challenging, but DDA is ready to face the challenge!