[Rick TYler]

Originally Posted by dhoizner

Up to a distance of 200 inches, the algorithm provides sensible data, but one step farther and the distance jumps to 400 inches.

Can this problem be attributed to the smallness of the height difference?

I think you are asking, "can this problem be attributed to the small change in angle between the last two measurements," right? If so, I think you are spot on. The farther away you get, the smaller the measured angle differences. I think you found the camera systems cutoff between meaningful angle distances and the noise level.

Hey, 200 inches is nearly 17 feet. How many teams realistically expect to score from farther away than that? Kareem Abdul-Jabbar scored 38,387 points in the NBA. Three of those points came on 3-pointers. In the ten years the 3-point play was legal during his tenure in the NBA, Abdul-Jabbar attempted 18 3-pointers and only sank 1. He is one of the greatest players ever, and is in the Hall of Fame. I think the teams trying to shoot from outside the paint (to continue abusing basketball metaphors) aren't going to score very often.