Skinput

Background

This article was about using the vibrations in the skin to determine where on the body someone has pressed. It used an arm band sensor to be able to pick up the vibrations, which was located just above the elbow.

Discussion

One thing that I did like about this is that the arm band can keep getting smaller or be put in a different place, but the user interface that shows up on the arm can still be the same, or still have bigger buttons like they said in the article. This would be a great thing because then the technology can change and become better, but the interface will stay the same, which people will like since they won't have to keep learning new things.

I was really impressed and surprised by the sensors and how accurately it worked since it did show that even if you pressed at the same length on the arm, but on a different width, it could still pick it up at like a 80% - 90% success rate on a person with a low BMI.

The people working on the sensor said that they had a lot of problems when trying to grab the skin vibrations when people were either walking or jogging. And also that if people had a higher BMI, it showed lower results. There is another problem that needs to be raised that I did not see in the article, which is what if people have muscle spasms, would skinput give a result that should not be there. Which would be really bad, because then there would be an involuntary input, and that input might make a decision for the user that they do not want to be made.

On bad thing about this article is that it was a little misleading in the beginning because it did say that it was a "non-invasive" piece of equipment, but by looking at the pictures, it seemed to be on the larger side for what they were talking about and that it was on an odd part of the arm. Also, they never mentioned how tight it needs to be on the arm to be able to pick up the vibrations.