search

rheinzler / PointCloudDeNoising

MIT License
116 stars 25 forks source link

Label semantics #9

Closed ptoews closed 3 years ago

ptoews commented 3 years ago

I'm trying to understand what the different label categories in the dataset mean. First of all, what is difference between FogA, FogB and FogC? I had a look at the count of fog points per category but that didn't help.

The distributions of the rain categories are even more confusing to me. I noticed that already in the paper in figure 5: image Why does a rain rate of 15mm/h cause the highest count of rain points in comparison, and 33mm/h only so few?

rheinzler commented 3 years ago

Hello @ptoews,

Q#1: A B and C are recordings of the same scene and consecutive repetitions. We started at 5m visibility and waited until the fog is dissipated to 100m visibility. We have repeated these recordings several times and numbered them with A, B and C.

Q#2: That's correct. The rain at 15mm/h corresponds more to a light drizzle. This might affect the utilized lidar more strongly than a normal rain. At least that's what the data shows.

I hope that helps. If you have any further question, please reopen the issue.