Are the Angle and Firetime Correction automatically applied for Hesai products (XT32 specifically)

I’m testing the Hesai XT32 together with LidarView.

According to the support from Hesai, the angle and firetime correction can be requested from the Lidar sensor. Is LidarView requesting the device specific Angle and firetime Correction and does apply the correction, or do I manually select the custom correction file in the Device settings?

Thank you for your support!

Hi @parlor605,

Unfortunately LidarView do not request automatically the angle & firetime correction for hesai lidars yet. The only way to apply the angle correction is to load a csv file with the Use custom calibration file checkbox.

Let me know if you any other question about LidarView !

Hi @Timothee_Couble,

Thank you for the fast reply. Is there a documentation about the formatting of the custom calibration file? I exported the angle correction file from the Hesai XT32 with PandarView 2 and tried to apply it in LidarView. I didn’t see a visual change in the live data.

By the way, thank you for your great work with ParaView and LidarView! I’m getting started with lidar and LidarView helps to make fast tests.

The format should follow the one that you can find here with azimuth offset and elevation angle for each laser.
From what I have seen, the deviations stay in the range of roughly 0.1deg.
So if you are zooming on a certain area, you should spot small differences, but that should not appear obvious if you are not looking for it.

Note: you can open twice the same pcap file, one with the default calibration file and one with the custom one, you should notice slight changes. This should give you something like this ( points on the ground with twice the same pcap, once with default, once with custom calib)

1 Like