aboulch / ConvPoint

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dataset intensity value #36

Open nic-12 opened 3 years ago

nic-12 commented 3 years ago

What is the meaning of the intensity value at the 4th column of the Semantic3d dataset txt files? Why they are negative number? Are they necessary for implementing the networks? Thanks.

aboulch commented 3 years ago

Hello, I really do not why there are negative number, maybe these are outliers and should be removed? Anyway, I didn't use the intensity in the code, but it should be possible to modify it to do so.

nic-12 commented 3 years ago

Hi Thanks a lot for your answer. I would take this opportunity to make you another question, if possible. What does represent the value of the 4th, 5th, 6th and 7th column of the point cloud file after the ‘prepare data’ script (voxelized point cloud) ?? Thanks.

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From: Alexandre Boulch notifications@github.com Sent: Wednesday, January 20, 2021 9:15:39 PM To: aboulch/ConvPoint ConvPoint@noreply.github.com Cc: Nicola Somma nicola1.somma@mail.polimi.it; Author author@noreply.github.com Subject: Re: [aboulch/ConvPoint] dataset intensity value (#36)

Hello, I really do not why there are negative number, maybe these are outliers and should be removed? Anyway, I didn't use the intensity in the code, but it should be possible to modify it to do so.

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aboulch commented 3 years ago

If I remember well, these are Red, Blue, Green and Label value.