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Edge Video AnalyticsReference design

AI Edge Rehabilitation Posture Analysis

A single camera that watches a patient exercise, measures joint angles, counts only full repetitions and flags common compensation such as knee collapse or shoulder shrug. It is for physiotherapy clinics, elder care and day care centres, and home rehab. It is an assistive guide for the therapist, not a medical diagnosis.

Healthcare

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Bright physiotherapy studio with plyo boxes, exercise equipment and treatment beds — Photo: Hilahalumit, CC BY-SA 4.0, Wikimedia Commons. Shows the setting, not this installation.

33: Body points tracked per frame
24.0 FPS: Pose tracking speed on reCamera Pro, INT8 (vendor benchmark)
13.3 FPS: Pose tracking speed on reCamera 2002, INT8 (vendor benchmark)
< 2.5°: Joint angle error against a clinical goniometer (vendor benchmark on rehab videos)

Results reported by the design's authors on their own test setups. Yours depend on the site, so we confirm them in a pilot.

The problem

Why it matters.

Therapists need joint-angle tracking, rep counting and alerts for compensating movements during rehab, without sending patient video anywhere.

The flow

From signal to action.

01SenseCameraA 1080p camera with an 85° view captures the patient from the front, and frames are dropped from memory after use.
02DecidePose modelAn INT8 pose model on the camera's NPU finds 33 body points in each frame.
03DecideRep logicJoint angles feed a state machine that counts complete reps and checks for compensation over 3 frames.
04ActLive displaySkeleton and metrics stream over WebSocket to a screen, with optional RTSP video for an NVR.
05RecordTherapy recordsSession data can be pushed over MQTT or a webhook into hospital record systems.

Deployment architecture

How it is wired.

The devices on site, what carries their data, where the decision is made and where the result goes.

01SenseOn site

reCamera Pro1 per exercise station
reCamera 20021 per exercise station

02ConnectCarries the data

RTSP

03Your systemsWhere results land

WebSocket
HTTP console
MQTT
Webhook
Home Assistant

04ActWhat happens next

Live display

How it works

Step by step.

01Mount the camera 1.2 to 1.5 m high and 2 to 3.5 m in front of where the patient exercises.
02Open the local console in a browser and pick the exercise and its thresholds.
03The patient exercises while the camera tracks knee, shoulder and elbow angles.
04Only complete reps count. Half reps are rejected.
05Knee valgus, shoulder shrug and excess trunk lean are flagged on screen.
06Results go to the clinic display, and optionally to an NVR or the EMR.

The hardware

What goes on site.

Items we stock can go straight in the bag. Everything else we source and quote with the installation.

reCamera ProFaster camera preset for clinics and gyms1 per exercise station₹32,989
reCamera 2002Low-power portable preset for home use1 per exercise stationSourced on quote

Before you install

A mounting point 1.2 to 1.5 m high, facing the patient from 2 to 3.5 m away.
Room for the whole body to stay in frame during the exercise.
No strong light or window behind the patient.
A power point near the camera.
A LAN connection only if results must reach a display, NVR or record system.

Good to know

It guides movement. It does not diagnose and does not replace the therapist.
It is not suited to steep overhead views, distances beyond 4 m or a patient hidden by equipment or staff.
Compensation thresholds may need tuning for each new exercise or patient.
Accuracy numbers come from the vendor's own clinical video benchmark, not an independent study.

How we deliver it

Paper to site, one team.

01Site surveyWe walk the site, or review photos and drawings, and agree what to measure and where each device goes.
02PilotOne lane, one line or one room first. We tune it on your conditions and agree what good looks like.
03Roll outWe supply the hardware in India with GST invoices, install it, and connect it to the systems you already run.
04SupportSpares, remote checks and model updates, with one team to call when something changes.

Questions

Asked before buying.

Is patient video recorded or uploaded?

No. Frames are processed in memory and only skeleton points and angles are sent. Video goes out only if you switch on the optional RTSP stream.

Does it work without internet?

Yes. It runs fully offline with no host PC or cloud.

Can it replace a physiotherapist?

No. It helps the therapist watch more patients and keep records, but it is not a diagnostic tool.

Want this on your site?

Tell us the site and the problem. We come back with a pilot plan and a priced hardware list.

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