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yzrobot / online_learning

[ROS package] Online Learning for Human Detection in 3D Point Clouds
GNU General Public License v3.0
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libsvm train #11

Closed huyusheng123 closed 3 years ago

huyusheng123 commented 5 years ago

Hi,

I think that it does not work with the equipmen of Velodyne HDL-64 because the different feature extract from points, so could you please tell me how to use LIBSVM to obtain six features of human from points.

best wishes Thanks.

huyusheng123 commented 5 years ago

Hi @yzrobot ,

After considering, I have some idea for libsvm, now I want to use LIBSVM to train my dataset, but I fail to obtain the file named "svm-train.c", Could you please provide this file to me?

best wishes thanks.

yzrobot commented 5 years ago

Hi, I have not had the chance to test it on the Velodyne HDL-64. But IMHO, if you use the offline version object3d_detector.launch then you probably need to retrain your SVM classifier with the Velodyne HDL-64 data, but if you use the online version object3d_detector_ol.launch then you can get the SVM classifier more easily, you just need to uncomment line 815 and 816 https://github.com/yzrobot/online_learning/blob/Kinetic/object3d_detector/src/object3d_detector_ol.cpp.

The source of LIBSVM is here https://github.com/cjlin1/libsvm

Cheers, Zhi

huyusheng123 commented 5 years ago

Hi @yzrobot ,

I am happy to hear from you, now It means that I can get the SVM classifier for my bag file which have the same topics after changing the related parameter in object3d_detector_ol.cpp?

the second question： now I can get the eleven parameters of label in per PCD file by using your package (https://github.com/yzrobot/cloud_annotation_tool), If I want to re-train my SVM classifier with the Velodyne HDL-64 data, What should I do next?

best wishes thanks.

tcjcxy30 commented 4 years ago

@huyusheng123 Hi: I meet the same problem by using 64-line LIDAR. So I want to know if you have a solution to fix this problem. Best wishes.

yzrobot commented 4 years ago

Hi, you could try this: https://github.com/yzrobot/cloud_annotation_tool/tree/devel. Please modify the source code as needed. Cheers.

yicheng6o6 commented 3 years ago

@huyusheng123 Hi, I am sorry to bother you.

I meet the same problem and I want to know if you have a solution to train the SVM classifier?

Any help is much appreciated:)