how to get the surface normal image

[yvanyin]

how to get the surface normal image

[YvanYin]

Hi, I will try to find the code.
You can read this:
https://stackoverflow.com/questions/34644101/calculate-surface-normals-from-depth-image-using-neighboring-pixels-cross-produc
It is very helpful for you to understand how to recover surface normal. However, you should recover (x, y, z) for each pixel before calculating its surface normal

[ITking666]

Thank you so much for your kind reply.
But I still want to konw how did you get the depth estimation results by Junjie Hu (Revisiting Single Image Depth Estimation: Toward Higher Resolution Maps With Accurate Object Boundaries) and convert these depth images to surface normal map .

[YvanYin]

Hi, can you send me an email, I can send you the code.

[ITking666]

Thank you very much and my mails is [email protected]

[ITking666]

Thank you very much and my mails is [email protected]

[yiying66]

Hi,
I have tried to understand the link @YvanYin gives, but failed. Could you please send me the code too. My email is [email protected]. Looking forward to your reply and thank you very much.

[kwea123]

@YvanYin Hi, the link you provide gives a good insight but is not directly applicable here as it doesn't take into account the camera parameters. As you suggested, the correct way should be to backproject each pixel into 3d xyz then calculate the normals. However I struggle to find an efficient and concise implementation... I'm also surprised that I cannot find any resource on google as it seems to be a common problem. Anyway, can you provide the code in this repo? Thank you.

[YvanYin]

Hi all, I will post my code for recovering the surface normal from the point cloud.

[YvanYin]

Please check /tools/recover_surface_normal.py.

[ITking666]

Thank you very much

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------------------&nbsp;原始邮件&nbsp;------------------ 发件人: "YvanYin/VNL_Monocular_Depth_Prediction" <[email protected]&gt;; 发送时间:&nbsp;2020年7月31日(星期五) 上午9:34 收件人:&nbsp;"YvanYin/VNL_Monocular_Depth_Prediction"<[email protected]&gt;; 抄送:&nbsp;"1474690467"<[email protected]&gt;;"Author"<[email protected]&gt;; 主题:&nbsp;Re: [YvanYin/VNL_Monocular_Depth_Prediction] how to get the surface normal image (#34) Please check /tools/recover_surface_normal.py. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.