~/talk

The Doctor Will See You Now: Machine Learning for Telehealth

Talkat JSConf Budapest 2022 · 2022-06-02..06-03· [machine-learning, web-platform]
slides:none on file

Built a browser telehealth app called dialer video that reaches over 80% of US physicians and ran hundreds of thousands of clinician calls and millions of call minutes, and implements virtual backgrounds using TensorFlow.js plus MediaPipe/selfie segmentation (uploader also cites BodyPix). Real time constraint targets ~30 FPS so segmentation runs in ~33 ms, mask smoothing uses a bilateral filter via glfx.js, compositing uses Canvas globalCompositeOperation, demo ties into Twilio video, works in Chromium with OffscreenCanvas and is production deployed.

AI-written summary · about

  1. 0:00Start
  2. 6:48Chroma-key Compositing
  3. 8:40Image segmentation
  4. 12:14Computer vision
  5. 12:34Compositing a virtual background
  6. 12:56Compositing in 4 steps
  7. 20:52Create the video processor
  8. 21:38Process the video frame
  9. 22:58Paint the mask
  10. 23:20Apply a bilateral filter
  11. 23:57Step 2.1: Crop the bilateral filter
  12. 24:23Composite the foreground
  13. 24:44Composite the background
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