Overview: LIQA v5 [doc v15]
This page describes the LIQA library
Last updated
This page describes the LIQA library
Last updated
LIQA stands for "Live Image Quality Assurance". It is an AI-powered tool for real-time, no-reference image-quality assessment based on captured video via a mobile device camera.
Technically, LIQA is a JavaScript library with math and UI inside that is designed to be integrated into a company's web page. LIQA requires no server connection for calculations, utilizing only the device's computational capabilities.
LIQA estimates image-quality parameters and interacts with the user through visual feedback. Through this feedback, LIQA guides users toward standardized images with respect to preset quality parameters, which are defined based on Haut.AI’s expertise in facial skin analysis.
Learn how to try LIQA here: Try LIQA: access request!
The 5th version of LIQA brings several new features and some major fixes. The main two features available from 5.0 are auto-capturing of selfie images and prediction of landmarks (facial key points) on resulting selfie image. The fixes change the behaviour of initialization, add new ways for more flexible LIQA loading and improves the collection flow. See more in What's New: release notes
Features
Description
Use case scenario
Organize repeatable and trustable image collection
experiments following predefined quality standards.
Rejection strictness
Fixed for the head position: distance from camera, inclines, rotation.
Configurable for illumination:
Two settings to exclude jaw/forehead areas from analysis for specific cases
Three settings to allow more or fewer illumination imperfections
See more in Config
Estimated parameters
Head rotation
Face illumination intensity
Face illumination uniformness
Camera resolution
Visual feedback
Demonstrates illumination map on a face
Returns emitters with parameters' status to allow frontend to interpret values
See more in Data collection
Image saving formats
PNG (lossless, high weight)
JPEG (no compression)
JPEG (25% compression)
JPEG (50% compression, minimal weight)
See more in Config
Recommended camera resolution
1.2Mp - 7Mp
Maximum image resolution
2000 x 2000 pixels
Minimal required mobile device RAM
3Gb