Apriltag2 or 3? - Githubissues

TurtleZhong commented 2 years ago

Hi, Thanks your great project. Recently I wanna use ouster lidar(os1-64) to detect tags, But I got a few problems.

In README we provide tag16h6c5 from AprilTag3 with three sizes (0.61, 0.85, 1.2)., The size means t in the below picture?
I check the AprilTag3 here but I found it is not the same in your paper, also in your provide bags. The tag 0 and tag 4 in apriltag3 (tag16h5) is not the same with above picture. so I check the code betwen lidartag here and apriltag here, I found that your file is the same with apriltag2 here but not 3. but I found your provide tags is apriltag3. so I'm a little confused about that which apriltags to use.

CLboyrobot commented 1 year ago

Hi, Thanks your great project. Recently I wanna use ouster lidar(os1-64) to detect tags, But I got a few problems.

1. In README _we provide tag16h6c5 from AprilTag3 with three sizes (0.61, 0.85, 1.2)._, The size means t in the below picture?
   ![image](https://user-images.githubusercontent.com/19700579/194790128-fb389589-ecf1-4776-8dc8-240a10027839.png)

2. I check the AprilTag3 here
   ![image](https://user-images.githubusercontent.com/19700579/194790299-96272883-7513-4265-baa5-0565babac192.png)
   but I found it is not the same in your paper, also in your provide bags.
   ![image](https://user-images.githubusercontent.com/19700579/194790365-f5204ee1-377b-4ee7-a035-523c763ae0d5.png)
   ![image](https://user-images.githubusercontent.com/19700579/194790400-09c0efcb-87c8-4a8d-98da-53f5283ecc88.png)
   The tag 0 and tag 4 in  apriltag3 (tag16h5) is not the same with above picture. so I check the code betwen lidartag [here](https://github.com/UMich-BipedLab/LiDARTag/blob/release/src/tag16h5.cc) and apriltag [here](https://github.com/AprilRobotics/apriltag/blob/master/tag16h5.c), I found that your file is the same with apriltag2 [here](https://github.com/shijiwensjw/apriltags2_ros/blob/master/apriltags2/src/tag16h5.c) but not 3. but I found your provide [tags](https://drive.google.com/drive/folders/1Twx7y6yxr-s2qAoCa4XliCxNuINAlXNn) is apriltag3. so I'm a little confused about that which apriltags to use.

你好，请问你解决这个问题了么，可以请教一下吗，是作者写错了吗

SKLotus commented 10 months ago

Hello, I have also encountered the same problem. Have you resolved it?

CLboyrobot commented 10 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

SKLotus commented 10 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

CLboyrobot commented 10 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

yes,use the 16h5

SKLotus commented 10 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

yes,use the 16h5

Okay, thank you very much! I will continue to seek your advice if there are any issues in the future!

SKLotus commented 9 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

yes,use the 16h5

Hello, I printed the tag for 16h5 with ID 0. As shown in the figure, but I cannot recognize this ID when running the program. issue

CLboyrobot commented 9 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

yes,use the 16h5

Hello, I printed the tag for 16h5 with ID 0. As shown in the figure, but I cannot recognize this ID when running the program.

你按照作者要求了吗，我跑过是可以的

SKLotus commented 9 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

yes,use the 16h5

Hello, I printed the tag for 16h5 with ID 0. As shown in the figure, but I cannot recognize this ID when running the program.

你按照作者要求了吗，我跑过是可以的

我可以加一下你的联系方式吗？希望能够详细请教，谢谢!

CLboyrobot commented 9 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

yes,use the 16h5

Hello, I printed the tag for 16h5 with ID 0. As shown in the figure, but I cannot recognize this ID when running the program.

你按照作者要求了吗，我跑过是可以的

我可以加一下你的联系方式吗？希望能够详细请教，谢谢!

你是要做相关方面的工作吗？我的微信：clboy_stone

SKLotus commented 9 months ago

Hello, I have also encountered the same problem. Have you resolved it?

Author is right.

I don't seem to have found the April tag image for tag16h6. Where do I need to generate it? Can we still directly test and verify using the image of tag16h5 from Apriltag3?

yes,use the 16h5

Hello, I printed the tag for 16h5 with ID 0. As shown in the figure, but I cannot recognize this ID when running the program.

你按照作者要求了吗，我跑过是可以的

我可以加一下你的联系方式吗？希望能够详细请教，谢谢!

你是要做相关方面的工作吗？我的微信：clboy_stone

是的，我是一名学生，已经申请了，谢谢！

UMich-BipedLab / LiDARTag

Apriltag2 or 3? #17