Using the railway network as a flatbed scanner [video]

# Using the railway network as a flatbed scanner Source: [https://media.ccc.de/v/emf2026-74-1-using-the-railway-network-as-a-flatbed-scanner](https://media.ccc.de/v/emf2026-74-1-using-the-railway-network-as-a-flatbed-scanner) 1. [browse](https://media.ccc.de/b) 2. [conferences](https://media.ccc.de/b/conferences) 3. [emf](https://media.ccc.de/b/conferences/emf) 4. [2026](https://media.ccc.de/b/conferences/emf/2026) 5. event [Philomena Gray](https://media.ccc.de/search?p=Philomena+Gray) [Stage A](https://media.ccc.de/c/emf2026/Stage%20A)[talk](https://media.ccc.de/c/emf2026/talk)Playlists:['emf2026' videos starting here](https://media.ccc.de/v/emf2026-74-1-using-the-railway-network-as-a-flatbed-scanner/playlist)/[audio](https://media.ccc.de/v/emf2026-74-1-using-the-railway-network-as-a-flatbed-scanner/audio)I've been taking extremely wide photos by pointing an industrial linear camera out the window of a moving train and stitching together the several thousand lines captured per second after the fact\. I'll talk about the pains of measuring the speed and collecting each line fast enough to produce a coherent image, as well as the problems of processing and displaying such wide images\. Licensed to the public under https://creativecommons\.org/licenses/by\-sa/4\.0/ ### Download #### Audio ### Tags