Ego-InBetween: Generating Object State Transitions in Ego-Centric Videos

Fuente: arXiv
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Main Authors: Ge, Mengmeng, Isobe, Takashi, Jia, Xu, Sun, Yanan, Yang, Zetong, Wang, Weinong, Zhou, Dong, Li, Dong, Lu, Huchuan, Barsoum, Emad
Format: Preprint
Published: 2026
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author Ge, Mengmeng
Isobe, Takashi
Jia, Xu
Sun, Yanan
Yang, Zetong
Wang, Weinong
Zhou, Dong
Li, Dong
Lu, Huchuan
Barsoum, Emad
author_facet Ge, Mengmeng
Isobe, Takashi
Jia, Xu
Sun, Yanan
Yang, Zetong
Wang, Weinong
Zhou, Dong
Li, Dong
Lu, Huchuan
Barsoum, Emad
contents Understanding physical transformation processes is crucial for both human cognition and artificial intelligence systems, particularly from an egocentric perspective, which serves as a key bridge between humans and machines in action modeling. We define this modeling process as Egocentric Instructed Visual State Transition (EIVST), which involves generating intermediate frames that depict object transformations between initial and target states under a brief action instruction. EIVST poses two challenges for current generative models: (1) understanding the visual scenes of the initial and target states and reasoning about transformation steps from an egocentric view, and (2) generating a consistent intermediate transition that follows the given instruction while preserving object appearance across the two visual states. To address these challenges, we propose the EgoIn framework. It first infers the multi-step transition process between two given states using TransitionVLM, fine-tuned on our curated dataset to better adapt to this task and reduce hallucinated information. It then generates a sequence of frames based on transition conditions produced by the proposed Transition Conditioning module. Additionally, we introduce Object-aware Auxiliary Supervision to preserve consistent object appearance throughout the transition. Extensive experiments on human-object and robot-object interaction datasets demonstrate EgoIn's superior performance in generating semantically meaningful and visually coherent transformation sequences.
format Preprint
id arxiv_https___arxiv_org_abs_2604_17749
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Ego-InBetween: Generating Object State Transitions in Ego-Centric Videos
Ge, Mengmeng
Isobe, Takashi
Jia, Xu
Sun, Yanan
Yang, Zetong
Wang, Weinong
Zhou, Dong
Li, Dong
Lu, Huchuan
Barsoum, Emad
Computer Vision and Pattern Recognition
Understanding physical transformation processes is crucial for both human cognition and artificial intelligence systems, particularly from an egocentric perspective, which serves as a key bridge between humans and machines in action modeling. We define this modeling process as Egocentric Instructed Visual State Transition (EIVST), which involves generating intermediate frames that depict object transformations between initial and target states under a brief action instruction. EIVST poses two challenges for current generative models: (1) understanding the visual scenes of the initial and target states and reasoning about transformation steps from an egocentric view, and (2) generating a consistent intermediate transition that follows the given instruction while preserving object appearance across the two visual states. To address these challenges, we propose the EgoIn framework. It first infers the multi-step transition process between two given states using TransitionVLM, fine-tuned on our curated dataset to better adapt to this task and reduce hallucinated information. It then generates a sequence of frames based on transition conditions produced by the proposed Transition Conditioning module. Additionally, we introduce Object-aware Auxiliary Supervision to preserve consistent object appearance throughout the transition. Extensive experiments on human-object and robot-object interaction datasets demonstrate EgoIn's superior performance in generating semantically meaningful and visually coherent transformation sequences.
title Ego-InBetween: Generating Object State Transitions in Ego-Centric Videos
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2604.17749