Question about equation (10)? about lstr

[liuruijin17]

Hi, fu is the width (in meter) of a pixel / focal length (in meter), so u * fu is in meter / meter. Then Z is in meter, and X = (meter / meter) * meter so in meter.

Yes, we ignore translation offsets for simplicity.

[yulongshan]

Thanks for your relying, And I usually consider the camera instrinc matrix as [fx,0 ,cx,0,fy,cy,0,0,1] . So I calculate like this

But does fu = 1/fx ,fv = 1/ fy in your paper?

[liuruijin17]

Perhaps the physical quantities and physical meaning of the camera parameters are not understood in the same way. Here's how we consider it.

[yulongshan]

Thans very much!

[yulongshan]

您好，很抱歉再次打扰您，我又一次研究您的论文时，不太理解公式12, [cid:d53836e5-f8d5-427b-876e-e48d5e25a852] 为什么可以将旋转矩阵作用在像素坐标上，还有您的f和fu，fv是什么关系呢？ 一般旋转矩阵R不应该K（RX）/Z = [uv]这样作用吗？其中K为相机内参，X为三维点。 f不应该是相机固有参数为什么会在发生pithc角时变化，您是将u,v,f当作三维点去做变化吗？ Sent from Outlook<http://aka.ms/weboutlook>

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________________________________ From: LiuRuijin ***@***.***> Sent: Saturday, November 21, 2020 12:29 PM To: liuruijin17/LSTR ***@***.***> Cc: yulongshan ***@***.***>; Author ***@***.***> Subject: Re: [liuruijin17/LSTR] Question about equation (10)? (#6) Perhaps the physical quantities and physical meaning of the camera parameters are not understood in the same way. Here's how we consider it. [eq10]<https://user-images.githubusercontent.com/29913368/99867349-e9884000-2bf3-11eb-9c9d-be6472a2d1d4.jpg> [eq102]<https://user-images.githubusercontent.com/29913368/99867496-f8bbbd80-2bf4-11eb-95f8-45d222f6f480.jpg> ― You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#6 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AIIJX46QR3JVYVWMQKTO55DSQ46ZFANCNFSM4T4WFGUQ>.