fixed fatal error (fx not defined) on stereo camera calibration
fixed fatal error (fx not defined) on stereo camera calibration

markusgrotz/rtabmap,srmanikandasriram/rtabmap,chen0510566/rtabmap,chen0510566/rtabmap,srmanikandasriram/rtabmap,markusgrotz/rtabmap,markusgrotz/rtabmap,chen0510566/rtabmap,srmanikandasriram/rtabmap