https://hackerpaper.kaipfister.de/p/2510.27028/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=45874863urn:hackerpapers:mention:2510.27028:45874863Mon, 10 Nov 2025 11:24:22 GMT<p>Thanks! Curious under what circumstances the respiration was off - were you standing or sitting down? I can usually see the resp wave go up and down as I breathe while sitting down. I have written up a technical report on the validation here: https://arxiv.org/abs/2510.27028 This validation is based on several datasets, which all have gold standard ground truth from contact PPG and RESP from chest straps and/or impedance pneumography (from ECG)</p><p><a href="https://hackerpaper.kaipfister.de/p/2510.27028/">Paper and discussion history</a>. A mention is not an endorsement.</p>cs.CV