Author

Aditya Nigam

2 papers indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Oct 2026

Diff-IrisPAD: Modeling Bona Fide Iris Distributions for Unsupervised Presentation Attack Detection

Iris recognition systems are vulnerable to presentation attacks (PAs), including textured contact lenses, print replays, and synthetic irises. Existing PAD methods rely on supervised learning with attack data, limiting generalization to unseen attacks and new sensors. We propose Diff-IrisPAD, an unsupervised framework...

Geetanjali Sharma, Harsh Yadav, Tanmay Deshpande et al. · 0 citations

Sep 2026

UniMoRe: Unified Motion Representation via Gait IMU Pretraining

Pretraining for inertial measurement unit (IMU) signals is gaining traction. Several strategies are devised based on complex architectures, multimodal fusion, or large multiactivity corpora. Yet, it remains unclear whether a simple, single-modality model pretrained on a narrowly focused motion domain can yield general-...

S. Chakraborty, Aniket Kumar, Aditya Nigam · IEEE Sensors Journal · 0 citations