Re: [OpenKinect] Digest for - 1 update in 1 topic

Skip to first unread message

Rommel Malave

Dec 7, 2015, 8:49:47 PM12/7/15
algo así como esto?

1.982741×240· sen a
1.487056 * 320 .sen a

2015-12-07 11:48 GMT-04:30 <>:
Daniel Johnson <>: Dec 06 10:13AM -0800

Looking at a binary blob I got off of the intel realsense F200 camera
I found numbers in the upper triangle matrix format typically used for
intrinsic calibration.
1.487056 0.000000 0.012773
0.000000 1.982741 0.029860
0.000000 0.000000 1.000000
This doesn't match numbers from a manual calibration I did a while
ago, and I'm trying to figure out if this is some kind of equivalent
My manual calibration
475.310051 0.000000 335.282418
0.000000 474.440685 242.982056
0.000000 0.000000 1.000000
If I take the top left number from A which should be a focal length to
pixel size number, and multiply it by half the width of the image 320
I get
475.85792 = 1.487056 * 320
Which is about the size of the number in B.
Similarly if I take the middle number from A, and multiply it by half
the height of the image I get.
475.85784 = 1.982741×240
The last two significant numbers I can't make any sense of how to convert them.
0.012773 should be a number for the X center of the image
0.029860 should be the Y center.
I'm hoping someone with more experience with the math can help.
teknotus (Take Notice)
You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page.
To unsubscribe from this group and stop receiving emails from it send an email to

Rommel Malave

Dec 8, 2015, 2:31:38 PM12/8/15
Reply all
Reply to author
0 new messages