Package Exports

actioncensus
actioncensus/dist/actioncensus.min.js
actioncensus/src/actioncensus.js

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Readme

ActionCensus

Webcam-based motor assessment for research. Measures finger tapping performance using computer vision.

Live Demo: https://actioncensus.org

Installation

Via npm:

npm install actioncensus

Or via CDN:

<script src="https://cdn.jsdelivr.net/npm/@mediapipe/hands/hands.js"></script>
<script src="https://cdn.jsdelivr.net/npm/actioncensus/dist/actioncensus.min.js"></script>

Usage

const assessment = new ActionCensus({
    trialDuration: 10000,
    onComplete: (results) => {
        console.log('Taps:', results.tapCount);
        console.log('Frequency:', results.frequency, 'Hz');
    }
});

await assessment.init();
await assessment.startTrial('right');

API

Methods:

init() - Initialize camera and hand tracking
startTrial(hand) - Start assessment ('right' or 'left')
stopTrial() - Stop and get results
getElements() - Get video/canvas elements

Results:

tapCount - Number of taps
frequency - Taps per second (Hz)
rhythmVariability - Timing consistency (%)
amplitudeDecrement - Movement reduction (%)
Features
Real-time hand tracking (MediaPipe)
Multi-method tap detection
Clinical metrics calculation
100% local processing
Cross-platform compatible

License

MIT - see LICENSE

Links

GitHub: https://github.com/ShadowCoder1/actioncensus Issues: https://github.com/ShadowCoder1/actioncensus/issues