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Parastoo Azizinezhad

2 papers indexed

arxivcs.CVcs.HC2026-07-22

Factor-Informed Uncertainty Distillation for Gaze Estimation

Mohammadreza Jamalifard, Yaxiong Lei, Javier Fumanal Idocin, Parastoo Azizinezhad, Tom Foulsham, Javier Andreu-Perez

Deep gaze estimation works well in controlled capture but degrades in unconstrained settings, where systems must reject unreliable predictions. Single-pass uncertainty (e.g., heteroscedastic regression) infers uncertainty from pixels without explicit input-validity cues, while sa…

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arxivcs.CVcs.HC2026-06-29

Coordinate Singularities Break Conformal Coverage for Gaze and Head Pose

Mohammadreza Jamalifard, Yaxiong Lei, Parastoo Azizinezhad, Javier Andreu-Perez

Conformal prediction provides distribution-free reliability guarantees for vision systems, but these guarantees depend on how prediction errors are measured in the output space. Many vision tasks produce outputs on curved spaces (e.g. gaze directions on the sphere or 3D head rota…

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