Cloud Compare 11: Change Detection analysis

[@Stijn23]

Very good presentation of the C2C analysis and M3C2 analysis! The M3C2 analysis is for more advanced users but you explained it very well, it helped me a lot with writing my paper thanks!

[@liamboyle9199]

Thanks for going over M3C2 in quite high detail. This should really help my honours project in applying or attempting to apply M3C2 for coral growths.

[@CarlosBartesaghiKoc]

All the best!

[@dragonmaster1500]

Why did I never think of this? For context, I'm working on a fuel treatment project where we're trying to use LiDAR data quantify the density and volume of fine fuels removed from a forestry plot. Why did I never think to use the the C2C distance calculation?? And I had no idea about the multiscale model Comparison, I've gotta go try that!

[@andrealves2210]

Hi, could please say what you did for both scans to be in the same survey grid?

[@ubed201]

can i get a link to download this data set?

[@limpredator]

hi love the explanation, will be using your method to complete my fyp. But I got a question, i know that there is no unit in cloud compare but heard you saying meters for the building, is this just an assumption or a method that you used to get it ? Thanks

[@parisilucas1511]

Hi Carlos, is there a way to download the Wolli Creek LAS files ?

[@CarlosBartesaghiKoc]

Yes, from ELVIS Geoscience website

[@Ubedkhan-h9i]

can u please provide me link of these data it will really help in my research?

[@basemnouh6292]

Hi Carlos, regarding comparing two or more Point clouds with cloud compare , i have a Lidar point cloud and i generated point cloud from Arial Photos through Agisoft and then i used Lastools to get DTM , so i want to compare the both Point clouds ,,, it means also Change Detection between the both !! PoI is very big so my Prof told me to take some places like Street , parking spot , buildings ! any recommendation

[@CarlosBartesaghiKoc]

Yes you can, just use a more limited area so you have less data > this will reduce computational time

[@chloeavarodrigues9983]

Can you use a rhino model??

[@CarlosBartesaghiKoc]

Yes, you have to export the rhino model in a format that can be opened by CC

[@MK-hl2rl]

Is the CloudCompare software free??

[@CarlosBartesaghiKoc]

Yes It is open-source

[@MK-hl2rl]

@@CarlosBartesaghiKoc great thank you. I was considering using it to compare point clouds from two different scanners.

[@marcinmichalak7001]

Usless vidieo

[@Nomegustausarmimail]

Thank you, very clear and helpful explanation!