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wvangansbeke / Sparse-Depth-Completion

Predict dense depth maps from sparse and noisy LiDAR frames guided by RGB images. (Ranked 1st place on KITTI) [MVA 2019]
https://arxiv.org/pdf/1902.05356.pdf
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Confusions about dataset #42

Closed ITBoy-China closed 3 years ago

ITBoy-China commented 3 years ago

Hi, I'm reading your paper and trying to reproduce your work.But there are some confusions on me.I have downloaded data_depth_annotated.zip,data_depth_velodyne.zip and data_depth_selection.zip.I have followed the instruction of kitti website and unziped data_depth_annotated.zip and data_depth_velodyne.zip into the same folder.My confusions are as follows.

  1. Files in data_depth_annotated.zip are ground truth of depth and files in data_depth_velodyne.zip are raw depth,is my understanding right?
  2. Files in data_depth_selection.zip are prepared for us to evaluate model,is my understanding right?
  3. I only find RGB images in data_depth_selection.zip.If I want to use RGB images for guidence,where are the corresponding RGB images in the two zip files,data_depth_annotated.zip and data_depth_velodyne.zip.
  4. What's the meaning of embedding1,embedding2,embedding3,embedding4?In other words,embedding from ERFNet as input of hourglass network,why?

I would appreciate it if you could help me with above confusions.

wvangansbeke commented 3 years ago

Hi @ITBoy-China,

Thank you for you interest in our work!

ITBoy-China commented 3 years ago

Hi @ITBoy-China,

Thank you for you interest in our work!

  • You should be able to find the the projected depth and the annotations on KITTI's website. You can find the corresponding RGB images here.
  • Yes. data_depth_selection.zip can be used to evaluate your model.
  • You need to download the raw RGB images and make sure that you match them with the corresponding depth maps during the dataloading.
  • Embedding1-4` are skip connections between the global network and the local network or skip connections between the hourglass networks (in the local net). This improves the results considerably.

@wvangansbeke Thanks for your patient reply. I'll try it by myself. If I still have some problems , I will discuss with you . Thanks again.

ITBoy-China commented 3 years ago

Hi @wvangansbeke @ITBoy-China,

For some reason, this link is not working for me to download the dataset. Is it modified?

[Data]$ wget 'http://www.cvlibs.net/download.php?file=data_depth_annotated.zip' --2021-03-25 22:40:23-- http://www.cvlibs.net/download.php?file=data_depth_annotated.zip Resolving www.cvlibs.net (www.cvlibs.net)... 85.214.204.21 Connecting to www.cvlibs.net (www.cvlibs.net)|85.214.204.21|:80%7C85.214.204.21%7C:80)... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: ‘download.php?file=data_depth_annotated.zip’

[  <=>                                                                                                                                                             ] 1,091       1.74KB/s   in 0.6s

2021-03-25 22:40:25 (1.74 KB/s) - ‘download.php?file=data_depth_annotated.zip’ saved [1091]

Please note that it is downloading some junk file which I am just not able to unzip. I hit the same issue when I try to use the script provided in the repo to download the dataset. Am I doing something wrong?

Hi @abhishekk06 ,I had encountered the same problem before. Then I used Chrome to download. Just like this image

It seems that you should send your email to get the real download path. Then they will send the real download path to your email.

abhishekk06 commented 3 years ago

Yes did the same. Thank you very much for the help.

On Fri, Mar 26, 2021 at 12:28 AM 一叶之秋 @.***> wrote:

Hi @wvangansbeke https://github.com/wvangansbeke @ITBoy-China https://github.com/ITBoy-China,

For some reason, this link is not working for me to download the dataset. Is it modified?

[Data]$ wget ' http://www.cvlibs.net/download.php?file=data_depth_annotated.zip' --2021-03-25 22:40:23-- http://www.cvlibs.net/download.php?file=data_depth_annotated.zip Resolving www.cvlibs.net (www.cvlibs.net)... 85.214.204.21 Connecting to www.cvlibs.net (www.cvlibs.net)|85.214.204.21|:80 http://www.cvlibs.net%7C85.214.204.21%7C:80)... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: ‘download.php?file=data_depth_annotated.zip’

[ <=> ] 1,091 1.74KB/s in 0.6s

2021-03-25 22:40:25 (1.74 KB/s) - ‘download.php?file=data_depth_annotated.zip’ saved [1091]

Please note that it is downloading some junk file which I am just not able to unzip. I hit the same issue when I try to use the script provided in the repo to download the dataset. Am I doing something wrong?

Hi @abhishekk06 https://github.com/abhishekk06 ,I had encountered the same problem before. Then I used Chrome to download. Just like this [image: image] https://user-images.githubusercontent.com/44388327/112576949-53c52180-8e2e-11eb-9d3c-d6227b556bee.png

It seems that you should send your email to get the real download path. Then they will send the real download path to your email.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/wvangansbeke/Sparse-Depth-Completion/issues/42#issuecomment-807926995, or unsubscribe https://github.com/notifications/unsubscribe-auth/ANHAWPW43DJVSLBMZ7X4CPLTFQEQVANCNFSM4YVPNFGQ .