Autoware Calibration Toolkit: Green Circle Too Small

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• I want to calibrate my camera using Velodyne.
  • As title mentioned, when I Grab, the green circle to extract Lidar points is too small then I cannot calibrate it accurately (like the botton right figure show below) because it can only extract couple of points.
  • I referred to the YouTube guidelines and the green circle it used is bigger enough to extract many points on the chessboard.
  • Is there any ways to modify the size of the green circle?
  • I am using Linux Ubuntu 16.04, Autoware version: 1.10, Lidar: Velodyne-16, Camera: GMSL

https://imgur.com/a/mQRiobQ