activity
20242026
collaborators

8 papers

cs.RO2026

A Hierarchical Spatiotemporal Action Tokenizer for In-Context Imitation Learning in Robotics

Fawad Javed Fateh, Ali Shah Ali, Murad Popattia +4

We present a novel hierarchical spatiotemporal action tokenizer for in-context imitation learning. We first propose a hierarchical approach, which consists of two successive levels…

cs.CV2026

TemporalVLM: Video LLMs for Temporal Reasoning in Long Videos

Fawad Javed Fateh, Umer Ahmed, Hamza Khan +2

We introduce TemporalVLM, a video large language model (video LLM) for temporal reasoning and fine-grained understanding in long videos. Our approach includes a visual encoder for…

cs.CV2026

Unsupervised Skeleton-Based Action Segmentation via Hierarchical Spatiotemporal Vector Quantization

Umer Ahmed, Syed Ahmed Mahmood, Fawad Javed Fateh +3

We propose a novel hierarchical spatiotemporal vector quantization framework for unsupervised skeleton-based temporal action segmentation. We first introduce a hierarchical approac…

cs.CV2025

Joint Self-Supervised Video Alignment and Action Segmentation

Ali Shah Ali, Syed Ahmed Mahmood, Mubin Saeed +3

We introduce a novel approach for simultaneous self-supervised video alignment and action segmentation based on a unified optimal transport framework. In particular, we first tackl…

cs.CV2025

Learning by Aligning 2D Skeleton Sequences and Multi-Modality Fusion

Quoc-Huy Tran, Muhammad Ahmed, Murad Popattia +3

This paper presents a self-supervised temporal video alignment framework which is useful for several fine-grained human activity understanding applications. In contrast with the st…

cs.CV2025

Permutation-Aware Action Segmentation via Unsupervised Frame-to-Segment Alignment

Quoc-Huy Tran, Ahmed Mehmood, Muhammad Ahmed +4

This paper presents an unsupervised transformer-based framework for temporal activity segmentation which leverages not only frame-level cues but also segment-level cues. This is in…