iphone 6s camera calibration parameters
How can I get camera calibration parameters for iphone 6s? I need the following intrinsic parameters:
Cam_fx: normalized focal length in x
Cam_fy: normalized focal length in y
Cam_cx: normalized camera center in x
Cam_cy: normalized camera center in y
Cam_s: normalized distortion factor
I tried using the PTAM camera calibration process but im getting some errors. Can anyone please suggest me some other way?