I have posted my code there (I can't valid the comment with the link) : search on google "developpeznet question sur cvFindExtrinsicCameraParams2", it's the first link.
It's in french but I wrote english comments in the code.
My question is how to use the extrinsic parameters from openCV to apply them to a 3D object in openGL because what I do is apparently wrong.
@MSteveMS Hi, I don't know whether you have find a solution to your question. if you find one, we can share our experience. I did it successfully in Glut by glDrawPixel(), the last parameter of which is a bridge between OpenCV and OpenGL. Maybe you can try, and we can share.
I have been trying to do an appliaction like that using opencv (camera calibration with a chessboard, ...) and opengl for one, two months without success :( , and finally I find someone who did it ! In my program, I have the translation but I can't manage to get the rotation (even with cvRodrigues). I certainly do something wrong but I don't see what. Could you give me helpful advice please? :)
Cool.... Does this mean that the z-axis is along the depth of the image and is it possible to calculate the real distance (3d coordinates) of any point on the checkered board ? OpenCV... is that the name of the library ??
OpenCV is a pretty big free computer vision library, the checkboard image is a way to calibrate camera or stereopair cameras for further work such as distance reading (which in case of stereo cameras, you only need the baseline between them and their focal length )
this is impressive, the 3D Windows shows hoe exactly the mapping works! thanks
praveenajs 5 months ago
Hello ,can uplease share ur project files ???
MsCooookiie 9 months ago
Hi,
I have posted my code there (I can't valid the comment with the link) : search on google "developpeznet question sur cvFindExtrinsicCameraParams2", it's the first link.
It's in french but I wrote english comments in the code.
My question is how to use the extrinsic parameters from openCV to apply them to a 3D object in openGL because what I do is apparently wrong.
Thanks!
MSteveMS 1 year ago
@MSteveMS Hi, I don't know whether you have find a solution to your question. if you find one, we can share our experience. I did it successfully in Glut by glDrawPixel(), the last parameter of which is a bridge between OpenCV and OpenGL. Maybe you can try, and we can share.
DanChou626108 1 month ago
Comment removed
MSteveMS 1 year ago
Have you posted sample code somewhere ?
tnx
lmiadowicz 1 year ago
What's the camera?
Eponymous300 1 year ago
@Eponymous300
My camera? I use a simple HP webcam.
MSteveMS 1 year ago
Hi!
I have been trying to do an appliaction like that using opencv (camera calibration with a chessboard, ...) and opengl for one, two months without success :( , and finally I find someone who did it ! In my program, I have the translation but I can't manage to get the rotation (even with cvRodrigues). I certainly do something wrong but I don't see what. Could you give me helpful advice please? :)
MSteveMS 1 year ago
ia331411.us.archive.org/3/items/TvQuran.com__1/TvQuran.com__020.mp3
ahmd1431 1 year ago
is out there any POSIT sample code using those opencv functions ?
thanks
DDoiS 1 year ago
How did u make it out the "3D window", and could also drag with mouse? is it OpenGL also used here?
sunbc0210 1 year ago
This comment has received too many negative votes show
Windows User => Sucker
Vistakiller1 2 years ago
Cool.... Does this mean that the z-axis is along the depth of the image and is it possible to calculate the real distance (3d coordinates) of any point on the checkered board ? OpenCV... is that the name of the library ??
HRINGNUN 2 years ago
OpenCV is a pretty big free computer vision library, the checkboard image is a way to calibrate camera or stereopair cameras for further work such as distance reading (which in case of stereo cameras, you only need the baseline between them and their focal length )
leakingpointer 2 years ago
@leakingpointer thanks
HRINGNUN 1 year ago