{"action":"opened","issue":{"url":"https://api.github.com/repos/SimpleITK/SimpleITK/issues/31","labels_url":"https://api.github.com/repos/SimpleITK/SimpleITK/issues/31/labels{/name}","comments_url":"https://api.github.com/repos/SimpleITK/SimpleITK/issues/31/comments","events_url":"https://api.github.com/repos/SimpleITK/SimpleITK/issues/31/events","html_url":"https://github.com/SimpleITK/SimpleITK/issues/31","id":58240896,"number":31,"title":"4D image support in SimpleITK","user":{"login":"kaspermarstal","id":478833,"avatar_url":"https://avatars.githubusercontent.com/u/478833?v=3","gravatar_id":"","url":"https://api.github.com/users/kaspermarstal","html_url":"https://github.com/kaspermarstal","followers_url":"https://api.github.com/users/kaspermarstal/followers","following_url":"https://api.github.com/users/kaspermarstal/following{/other_user}","gists_url":"https://api.github.com/users/kaspermarstal/gists{/gist_id}","starred_url":"https://api.github.com/users/kaspermarstal/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kaspermarstal/subscriptions","organizations_url":"https://api.github.com/users/kaspermarstal/orgs","repos_url":"https://api.github.com/users/kaspermarstal/repos","events_url":"https://api.github.com/users/kaspermarstal/events{/privacy}","received_events_url":"https://api.github.com/users/kaspermarstal/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-02-19T17:32:06Z","updated_at":"2015-02-19T17:32:06Z","closed_at":null,"body":"Dear Bradley and friends,\r\n\r\nI have long been impressed by the goal and execution of development of this library and you guys have my utmost respect. It solves an important but often overlooked problem is this field, namely  making the science-y algorithms user-friendly so the (often not so technical) clinical personnel can actually put them to good use.\r\n\r\nI have humbly forked this library to integrate the [elastix registration library](http://elastix.isi.uu.nl/) and ease the learning curve for new elastix users. However, [SimpleElastix](https://github.com/kaspermarstal/SimpleElastix) does not support groupwise registration at the moment because of the lack of support for 4D images in SimpleITK. I recall having read it was a deliberate choice not to support 4D images in order to make the interface as simple as possible. I am less inclined to start hacking away at the robust internal API and would like to know what the prospects are for native 4D support before I start implementing it in SimpleElastix myself? \r\n"}}