kinect depth to point - points near origin

Replies to This Discussion

Permalink Reply by Andy Payne on January 23, 2013 at 9:33pm

Hi Christain,

The points you're seeing are points that are detected outside the boundary of the Kinect's viewing range (these maybe either too close, too far, or otherwise ill formed.  I'm pretty much outputting the raw data from the Kinect, so I'm guessing that if it's a corrupt data point, that it defaults to the origin point.  I could I guess try to weed these out if they are a problem.

BTW, nice to see the color information added to your point data.  I've been meaning to add this feature into the core point output.

-Andy

Permalink Reply by Christian Schmidts on January 24, 2013 at 8:40am

hello andy,

first thing to say: its really fun to use firefly and the kinect tools, great development!

to the issue: i understand now how the points occur. i was trying to build a colored relief like mesh from the output points just by using the points as vertices and assigning them to the connectivity of a mesh plan with same number of vertices like the resolution of the kinect is. it also worked but in this case the ill informed point are a problem. just sorting them out would break the order of the points so i think it would be rather nice to interpolate their location between their neighbors which are not ill informed so the number and the order of the points are constant. guess i can do that inside gh but if you see it as useful would be nice to see that in the next version.

and one more question: what is the input in the depth stream for?

christian

Permalink Reply by Andy Payne on January 24, 2013 at 11:29am

The input (which you can hover over) is a boolean input to tell it whether or not to show a false color image.  Nothing substantial... but it does change the visualization (but the data is still the same).

-Andy