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Lobsters0 Hot0 comments23 min read
Using the railway network as a flatbed scanner
A hobbyist details building a homemade slit-scan line camera using an industrial Basler linear-scan sensor to photograph long, continuous scenes from moving trains and ferries. The project covers mechanical mounting with 3D-printed parts, capturing accelerometer and GPS data to correct for varying speed and parallax, writing custom capture software with Dear ImGui after OpenCV's highgui proved too slow, and a NumPy-based postprocessing pipeline called grindstone. It also covers color camera quirks like infrared bleed and channel fringing, plus tools for displaying gigapixel-scale images in a browser using OpenSeadragon and vips.
Source: https://philo.gay/linecam. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.
