Please read the ITK documentation defining origin, spacing and direction: https://itk.org/ITKSoftwareGuide/html/Book1/ITKSoftwareGuide-Book1ch4.html#x45-500004.1 You probably want to update the origin when you change the direction indeed. Spacing should not be changed.
On Thu, Oct 26, 2023 at 10:18 AM 小哈 <2310447...@qq.com> wrote: > hello， > Thank you for your answer. > I would like to know the meaning of the direction parameter matrix, or > how should I set it? If my other parameters, such as spacing and origin, > need to be modified after setting the new direction matrix. Thank you. > > > ------------------ Original ------------------ > *From:* "rtk-users" <rtk-users-requ...@creatis.insa-lyon.fr>; > *Date:* Thu, Oct 26, 2023 10:58 AM > *To:* "rtk-users"<rtk-users@creatis.insa-lyon.fr>; > *Subject:* Rtk-users Digest, Vol 129, Issue 6 > > Send Rtk-users mailing list submissions to > rtk-users@creatis.insa-lyon.fr > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.creatis.insa-lyon.fr/mailman/listinfo/rtk-users > or, via email, send a message with subject or body 'help' to > rtk-users-requ...@creatis.insa-lyon.fr > > You can reach the person managing the list at > rtk-users-ow...@creatis.insa-lyon.fr > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Rtk-users digest..." > > > Today's Topics: > > 1. Reconstruction of CBCT using FDK algorithm > (=?gb18030?B?0KG5/g==?=) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 26 Oct 2023 10:42:24 +0800 > From: "=?gb18030?B?0KG5/g==?=" <2310447...@qq.com> > To: "=?gb18030?B?cnRrLXVzZXJz?=" <rtk-users@creatis.insa-lyon.fr> > Subject: [Rtk-users] Reconstruction of CBCT using FDK algorithm > Message-ID: <tencent_91e92c870e98f19f54c791653a1f3bcda...@qq.com> > Content-Type: text/plain; charset="gb18030" > > Hello, > In the image reconstructed using the FDK algorithm of the RTK > package, the cross-sectional and coronal images were rotated > counterclockwise by 90 degrees, as shown in the following figure. > May I know how to modify the command line to reconstruct the image in the > normal direction? Looking forward to your reply, thank you! > > > > BR > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://www.creatis.insa-lyon.fr/pipermail/rtk-users/attachments/20231026/671d615d/attachment.htm > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: QQ??20231026103938.png > Type: application/octet-stream > Size: 200980 bytes > Desc: not available > URL: < > http://www.creatis.insa-lyon.fr/pipermail/rtk-users/attachments/20231026/671d615d/attachment.obj > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: QQ??20231026103946.png > Type: application/octet-stream > Size: 108355 bytes > Desc: not available > URL: < > http://www.creatis.insa-lyon.fr/pipermail/rtk-users/attachments/20231026/671d615d/attachment-0001.obj > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Rtk-users mailing list > rtk-us...@openrtk.org > https://www.creatis.insa-lyon.fr/mailman/listinfo/rtk-users > > > ------------------------------ > > End of Rtk-users Digest, Vol 129, Issue 6 > ***************************************** > _______________________________________________ > Rtk-users mailing list > rtk-us...@openrtk.org > https://www.creatis.insa-lyon.fr/mailman/listinfo/rtk-users >
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