PortalWalk4Me

Gait, measured where people actually walk.

Motion, GPS and video from a phone, reviewed side by side: cut each exercise, compare sessions and follow the path.

Encrypted in transit and at rest

Consent recorded in the app

No ads or trackers

Project-scoped access

How Walk4Me protects data →

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For authorized Walk4Me users only. Sign-ins and activity are logged and may be monitored, and misuse can lead to loss of access and action under University of California policy. By signing in you agree to the Terms and the Data security statement.

Clock

Record on the phone, review in the portal

The iPhone app records motion, location and video in one session, streams it or keeps it on the phone, and sends it to your server, where the portal lines it all up.

1OpenOpens on the logo. Pick Offline, Online or Video.

2ConnectSign in with Apple, scan your server’s QR code, or type it in.

3ConsentA setup code can carry a consent. Read it to the end, then agree before the app is used.

4RecordHold the print to start. Lock the screen, hold again to stop.

5StreamOnline waits for the portal, then sends every sample live.

6ReviewYour videos and recordings, played back with the traces and the map.

Every step, signal and place, side by side

Sign in to the portal to add people and set up their phones, follow recordings live, cut and review each exercise, calibrate, compare and classify walks, and see where a person spends their day.

1Set upAdd a person and their details, find them again, and make the QR code that sets up their phone.

2Record and reviewWatch a recording arrive live, cut each exercise on the video, and play it back with the signals and the map.

3Calibrate and compareTune step detection until it matches what was observed, then overlay two people’s walks, down to a 3D surface.

4Shape, classify and mapEach step as a loop in 3D, machine and deep learning that learn the groups, and a day in the city: where someone lives, works and goes.

Recorded in the portal with made-up demo data. The QR code is blurred on purpose: a real one lets a phone send recordings to the server.