A weird thing that detects your pulse from the browser video
Details
- External ID
- 47247762
- Source
- HN
- Company
- —
- Product
- A weird thing that detects your pulse from the browser video
- Website domain
- pulsefeedback.io
- Launched
- March 4, 2026
- Cohort
- —
- Upvotes
- 115
- Upvotes percentile
- 0.922509225092251
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Enrichment
- Theme
- personal health and wellness trackers
- Vertical
- Healthcare
- Function
- Hardware & robotics
- Audience
- B2C
- AI stance
- AI feature
- Project type
- Hobby / open-source project
- Normalized one-liner
- detect pulse from browser video
- Manually corrected
- False
Could you build this?
Partial Capturing webcam video via HTML5 is trivial, but real-time photoplethysmography (rPPG) requires signal processing algorithms to filter noise and detect microscopic skin color variations.
What it would actually take: The app needs a computer vision pipeline (often MediaPipe for face and ROI tracking) combined with remote photoplethysmography (rPPG) algorithms like CHROM or POS implemented in WebAssembly. The signal processing involves spatial averaging of green/chrominance channels, bandpass filtering (0.7-3.5 Hz), and Fast Fourier Transform (FFT) or peak-detection to extract heart rate amidst ambient light noise. This requires background in digital signal processing and computer vision.
Discussion
20 comments analyzed.
Competitors mentioned: Traditional chest strap heart rate monitors, Smartwatch heart rate measurement
Concerns raised: Accuracy significantly off compared to medical devices, Cannot reliably detect heart rate in all cases, Potential misuse for discriminatory hiring based on health status, Browser performance issues in Firefox, Front-facing camera default may not be user preference
Feature requests: Liveness detection to prevent spoofing with photos/sculptures/masks
Competitors
Other products that read as similar to this one — 120 launches clear the similarity bar, closest 8 shown.
Attention rank: #13 of 121 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 123 days after the earliest competitor.
- A lie detector game that reads your pulse through your phone camera · hn · 2026-05-08 · 11 upvotes · similarity 0.55
- See Sounds on Your Webcam · hn · 2026-09-10 · 22 upvotes · similarity 0.52
- pulse · github · 2026-09-25 · 9 upvotes · similarity 0.49
- Pulsecheck: Heart Rate monitor · ph · 2026-09-06 · 1 upvotes · similarity 0.48
- Pulse Monitor · ph · 2026-09-15 · 4 upvotes · similarity 0.46
- Artificial Intelligence · ph · 2026-09-27 · 1 upvotes · similarity 0.44
- What Just Pinged Me? · hn · 2026-09-13 · 25 upvotes · similarity 0.43
- Pion/rtwatch · hn · 2025-11-04 · 5 upvotes · similarity 0.43
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a hardware & robotics tool for Horizontal yet.