hi, I met some problem while trying to get the extrinsic parameters of single/two cameras.
According to page 3 in NVIDIA_DriveWorks_Calibration_Tool.pdf, the calibration tool supports single, stereo and 4-cameras.
Well, I succeed to complete the example(4-cameras) in page 21 in NVIDIA_DriveWorks_Calibration_Tool.pdf. However, I got the following error while I tried to get the extrinsic parameters of single camera.
16:32:12.077: camera SVIEW_FR is ocam
16:32:18.406: Load camera image files. Supported formats: *.bmp *.jpeg *.jpg *.pbm *.pgm *.png *.ppm *.xbm *.xpm
16:32:19.814: Selected 1 images
16:32:19.825: read /home/user/WORK/data/nvidia_calibration_tool_data/hq-nov/cam_0.png
16:32:19.859: relate to master camera: NO
16:32:19.866: number of calibrated cameras: 1
16:32:27.794: Not enough markers found, cannot calibrate
I tried again with two cameras and got the same error “Not enough markers found, cannot calibrate”.
Did I miss something or make some mistakes?
Thanks for any advices.