ALPACA, or ALPHACA, is a camera-only software that estimates user satisfaction (UX) from users' facial emotional dynamics. It extracts a valence–arousal time series from RGB frames using a Facial Emotion Recognition module and computes features over time windows. It supports identity-free (default, privacy-by-design) and context-aware (optional, with metadata to improve robustness) modes. Designed to also run on-device without saving videos, storing only anonymized descriptors if required. The software was developed with the contribution of Prof. Cosimo Antonio Prete of the University of Pisa.
ALPACA
Di Tecco, Antonio
2025-01-01
Abstract
ALPACA, or ALPHACA, is a camera-only software that estimates user satisfaction (UX) from users' facial emotional dynamics. It extracts a valence–arousal time series from RGB frames using a Facial Emotion Recognition module and computes features over time windows. It supports identity-free (default, privacy-by-design) and context-aware (optional, with metadata to improve robustness) modes. Designed to also run on-device without saving videos, storing only anonymized descriptors if required. The software was developed with the contribution of Prof. Cosimo Antonio Prete of the University of Pisa.File in questo prodotto:
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