Lessons Learned - The Negative

[Lil' Lavery]

Originally Posted by Greg McKaskle

The lighting was indeed challenging, but I don't think the clouds were that much of an issue. I was measuring the light level at various times during the day on Saturday. The light level measured at the front of the stands stayed within a factor of two of the spec level. I wasn't able to check on other days, where it may have had more impact. On the other hand, when the timeout was called on Einstein, the disco lights started going full tilt. Good thing teams weren't trying to calibrate their camera during their timeout.

I can't directly compare to previous years that used the camera, but levels were checked at the majority of the regional events, and only needed adjustments a few times to bring them into spec. That doesn't mean it was ideal, however. The dark curtain, the lack of conistency in the lighting in the background, and the spotlight positioning made it difficult for the camera to meter the light and get a good exposure. With the data and experience gained, I think the camera will be better utilized in coming years. Additionally, having a moving target being shot at from a moving platform with a slow projectile is more than just a vision problem. Personally I think the lead estimation and the lack of scoring benefit was the primary reason for the camera being underutilized.

While discussing the event lighting, I'll also mention that few teams took advantage of the lunch hour for measuring the field or calibrating the camera. At the three regionals where I assisted with this, three or four teams gave it a shot. In Atlanta, the red seats and pink target were close to each other in color, but they could be differentiated with a small change to the hue threshold. I don't know how many people asked the NI AIs, but only two teams asked me for help with vision. The vision sessions I presented were also not well attended. IMO, inconsistent lighting isn't the only issue.

Greg McKaskle

Greg,

I certainly don't think I had intended that as a shot against the camera or technology or support that NI supplied this year. It was NOT intended that way.

I agree that the game challenge was the biggest cause of the camera being underused by teams, but I feel that has as much to do with the specific choice of target teams were asked to follow. Similar to the last time we had an unlit target (2005), there was minimal success by teams. However, with a backlit target in 2006 ans 2007, success was much more widespread. This is especially true in 2006, when the value of tracking the target was readily apparent and incredibly high.