Have you ever watched a blogger, actor, or streamer and wondered what’s going on behind the camera? Are they calm, or is their heart racing? A new AI tool called Herzpuls promises to give you a glimpse, without the need for medical equipment or awkward interviews.
Heart Rate, From Any Video (Your Heart, Too!)
Herzpuls measures heart rate directly from video footage. Using advanced image analysis, the tool tracks subtle changes in skin color caused by blood flow, a technique known as remote photoplethysmography (rPPG), to estimate pulse in real time. Upload a clip of someone speaking, streaming, or performing, and the tool tracks how their pulse changes in real time. Nervous mid-interview? Excited during a game? Blushing while chatting on set? Herzpuls maps it all, revealing emotional beats you might never have noticed.
The technology works with pre-recorded or live video, provided the footage meets basic quality requirements. According to the developers, it can achieve up to 95% accuracy, though results may vary depending on lighting, motion, and other environmental factors.
While Herzpuls has been presented as a way for fans to explore their favorite content creators’ reactions, whether a streamer is nervous mid-interview or an actor’s pulse spikes during a scene, the team cautions that it is not a medical device and isn’t designed to diagnose or monitor health. “Estimating heart rate from video is impressive, but it shouldn’t replace clinical measurement,” says Alex Miller, Herzpuls co-founder, in the press release.
The fun isn’t limited to celebrities or content creators. You can upload your own recordings and see how your body reacts to stress, excitement, or suspense. Action movie scenes, political debates, awkward Zoom calls — Herzpuls turns them into a pulse report.
Beyond the fun, Herzpuls hints at broader possibilities. Remote monitoring, research on emotional response, and content analysis are all areas where AI-driven heart-rate detection could offer insight. For now, though, the appeal is clear: it’s a clever, non-invasive way to see what’s really happening when the cameras are rolling.
To try it, you should simply upload a clip and watch your favorite actor's, musician's, or content creator's pulse rise or take it for a spin on yourself. Herzpuls may not tell you why someone feels the way they do, but it shows you when their heart is in it. Data is protected in accordance with the Federal Data Protection Act (BDSG).
