How to extract the outline of the point cloud

[zorosmith]

Hello @xiaohulugo, I'm trying to obtain the outline of the point cloud after segmentation. However, the result is terrible as you can see in the picture, especially those in the red circle.

I'm using normal-based region growing to segmentation and I would like to use your ouP-Linkage algorithm next time.

I wonder how do you extract the outline of the point cloud as you shown in the paper,

Any help will be appreciated! Thank you!

[xiaohulugo]

The segmentation result highly depends on the quality of the point cloud. For the result shown in the paper, even though the point cloud is sparse, its accuracy is high, which means that points are basically on the plane. So the segmentation algorithm, which is based on the plane normal estimation, can works well. It seems that your point cloud is noisy. You can send me your testing data. I will have a try on it. Thanks gordon <notifications@github.com> 于2019年4月10日周三 下午10:38写道：

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Hello @xiaohulugo <https://github.com/xiaohulugo>, I'm trying to obtain the outline of the point cloud after segmentation. However, the result is terrible as you can see in the picture, especially those in the red circle. [image: jietu] <https://user-images.githubusercontent.com/22607041/55926598-8aef9780-5c44-11e9-8049-1e745d0263e4.png> I'm using normal-based region growing to segmentation and I would like to use your ouP-Linkage algorithm next time. I wonder how do you extract the outline of the point cloud as you shown in the paper, [image: vehicle] <https://user-images.githubusercontent.com/22607041/55926825-6a740d00-5c45-11e9-9792-30e5730c305b.jpg> Any help will be appreciated! Thank you! — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#5>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AUTQlsZD1i5q5ZkD5fKc5TK7LlFpFNX0ks5vfqA4gaJpZM4conoR> .

[zorosmith]

Hello @xiaohulugo , thank you for your help!
What kind of format do you need, txt? pcd?
I will send it to you soon.

[xiaohulugo]

txt is good gordon <notifications@github.com> 于2019年4月12日周五 上午1:26写道：

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Hello @xiaohulugo <https://github.com/xiaohulugo> , thank you for your help! What kind of format do you need, txt? pcd? I will send it to you soon. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#5 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AUTQlpCNdbSl8OAeCOi241VSn2lSFtU7ks5vgBkWgaJpZM4conoR> .

[zorosmith]

Hello @xiaohulugo , I have sent an email(smith_cai@163.com) to you, including my data.
Please have a check!
Thank you very much!