This week I bought a texture pack from Unity Asset Store to bring in better look and feel in to the game. The new asset contains more diverse objects to create obstacles and background. The old terrain and structure is replaced with the new texture pack. I also fixed the lighting and fog issue where distant objects are grayed out. Graying out distant object can be good as it makes the game more realistic, but previously the gray distance was…
This week the data collection process was bolstered and thanks to Tarana’s hard work in coordinating the hardware system of the EMG, we were able to collect data recorded from more than a single electrode. Last week’s milestone was collecting data from a single electrode and visualizing the signal from different recorded movements over time. This week, toward the end of the week we got data collected for all the movement collected from five electrodes on the forearm. This upcoming…
This week I created obstacles that are appropriate for the game and implemented obstacle collision using Mesh Collider in Unity. I used a planar mesh to check for collision when the character is moving straight into the obstacle. But a different implementation is required when the character tries to move left when the obstacle is there, or when the character jumps onto the obstacle. Next week’s goal is to implement gravity and jump so that the character can jump onto…
This week substantial time was spent working on the written draft of the Project Report. It was important that we made the report as thorough as possible in order to create a good starting point for our final report. This week I began work with the data collected from a single EMG electrode for wrist flexion and extension data. Two sample trials can be seen in the image below. The data collection portion of our project is a little behind…
This week I developed character movement and infinite terrain feature. One of the easiest way to burden the game main thread is to infinitely create roads and terrains as the character moves forward. This eventually take up large unnecessary game memory. We can clear up the issue by deleting the objects that are behind the character. Because I expect many more objects to be created at run time (coins, obstacles, etc) I decided to just move the road that is…
This week I spent time furthering specifics for the data collection experimental procedure of our project. Additionally, I have been exploring common data processing techniques for classifying EMG data, specifically useful feature extraction techniques such as Wavelet Transform. I will also be presenting during the Design Review Presentation for our team next week, so I have been working on the slides and preparing the presentation. Our project is currently on track and the next step is to collect the EMG…
This week the team had a few successes on both the hardware and software sides. On the hardware side, all the parts finally arrived so we have been able to solder parts together for the EMG system. On the software side, the mock controller has been helpful in serving as an intermediate workaround to test the game while the hardware is being developed. We are a little behind schedule as we would like to collect data in order to begin…
Because I got to finish the UDP Mock controller last week, I started this week ahead of schedule, and I got more time to work on the game itself. I got to test out and confirm that Unity was responding accordingly and quickly with the UDP Mock controller at this point the next step on the UDP side is to hook it up with real muscle controller and test things out. Now, I am working on making the early backbone…
This week our team approved and ordered hardware components for EMG data collection. Our Bill of Materials is here. We settled on the specific arm movements that will control the game as well as where electrodes will be placed on the forearm. Another success is that the specific data collection experimental protocol has been established and a functional game has been created. A Mock Muscle Controller was created in order to decouple the game dependency on the EMG hardware. This…
This week I spent time doing a thorough literature review of various EMG papers. I learned more about the EMG experimentation set up process in order to design our own experiment to collect EMG forearm data. Reading through EMG papers I found common classification algorithms and successful features extracted to improve EMG movement classification. I shared with the team my primary experimental set up for data collection. After initial discussion, we decided on initial electrode placement for when we perform…