Comment by crackwitz for The output of solvePnp tvec and rvec: is tvec in...
AIUI, when you transform from frame A to frame B, the tvec represents the "position" of A in B's frame. conceptually, coordinates you have in A are moved into B by adding the tvec. you can check what...
View ArticleComment by coldheat for The output of solvePnp tvec and rvec: is tvec in...
Most of that makes sense to me. Though I'm unclear on the nature of A & B. Do the frames A and B represent different coordinate systems image plane to world coordinates? I'm sorry that's such a...
View ArticleComment by crackwitz for The output of solvePnp tvec and rvec: is tvec in...
when I said "frame", I mean an abstract thing: a coordinate frame, coordinate axis, frame of reference, a "basis" to use a linear algebra term. in this situation your "space" is three-dimensional. -- a...
View ArticleComment by coldheat for The output of solvePnp tvec and rvec: is tvec in...
SolvePnp gives me a tvec that measures accurately the distance to the plane in mm. I know the math behind plane-ray intersection (huge amount of info on the web) but I am having trouble with the...
View ArticleComment by crackwitz for The output of solvePnp tvec and rvec: is tvec in...
what ray are you talking about? I don't follow.
View ArticleComment by coldheat for The output of solvePnp tvec and rvec: is tvec in...
I'm sorry. I want to create a ray from camera center to plane model. I was wondering whether tvec would have any role in that.
View ArticleComment by crackwitz for The output of solvePnp tvec and rvec: is tvec in...
tvec is precisely that vector in the camera frame that points to the plane frame's origin
View Articletvec and coordinate systems q
The output of solvePnp tvec and rvec: is tvec in world coordinates? I am guessing it is b/c the chessboard calibration is in mm. Second, what is tvec measuring from-to?
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