https://hackerpaper.kaipfister.de/p/2004.00626/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=22977706urn:hackerpapers:mention:2004.00626:22977706Sat, 25 Apr 2020 12:50:51 GMT<p>No, the camera is indeed allowed to change a tiny bit. For example, you do not need a tripod. Taking photos with a handheld camera works fine (although a tripod works even better). They explain it in greater detail in their paper: https://arxiv.org/pdf/2004.00626.pdf Background subtraction methods on the other hand usually fail if the camera moves even a tiny bit or the lighting changes slightly. More advanced methods can recover eventually, but you still get a few frames with improperly removed background.</p><p><a href="https://hackerpaper.kaipfister.de/p/2004.00626/">Paper and discussion history</a>. A mention is not an endorsement.</p>cs.CVhttps://news.ycombinator.com/item?id=22975298urn:hackerpapers:mention:2004.00626:22975298Sat, 25 Apr 2020 03:27:54 GMT<p>The originally submitted URL (https://www.catalyzex.com/paper/arxiv:2004.00626) points to https://github.com/senguptaumd/Background-Matting, which points to https://grail.cs.washington.edu/projects/background-matting, which points to https://arxiv.org/abs/2004.00626, which points to https://arxiv.org/pdf/2004.00626.pdf, which is inlined at the originally submitted URL. I&#x27;m not sure what&#x27;s going on here, but on HN the convention is probably to link to the project home page first, and after that maybe the Github page and if neither of those exist, to the arxiv.org homepage (but not the pdf…</p><p><a href="https://hackerpaper.kaipfister.de/p/2004.00626/">Paper and discussion history</a>. A mention is not an endorsement.</p>cs.CV