OmniDiT: Extending Diffusion Transformer to Omni-VTON Framework

Fuente: arXiv
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Main Authors: Zeng, Weixuan, Wei, Pengcheng, Wang, Huaiqing, Zhang, Boheng, Sun, Jia, Fan, Dewen, HE, Lin, Chen, Long, Gan, Qianqian, Yang, Fan, Gao, Tingting
Format: Preprint
Published: 2026
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author Zeng, Weixuan
Wei, Pengcheng
Wang, Huaiqing
Zhang, Boheng
Sun, Jia
Fan, Dewen
HE, Lin
Chen, Long
Gan, Qianqian
Yang, Fan
Gao, Tingting
author_facet Zeng, Weixuan
Wei, Pengcheng
Wang, Huaiqing
Zhang, Boheng
Sun, Jia
Fan, Dewen
HE, Lin
Chen, Long
Gan, Qianqian
Yang, Fan
Gao, Tingting
contents Despite the rapid advancement of Virtual Try-On (VTON) and Try-Off (VTOFF) technologies, existing VTON methods face challenges with fine-grained detail preservation, generalization to complex scenes, complicated pipeline, and efficient inference. To tackle these problems, we propose OmniDiT, an omni Virtual Try-On framework based on the Diffusion Transformer, which combines try-on and try-off tasks into one unified model. Specifically, we first establish a self-evolving data curation pipeline to continuously produce data, and construct a large VTON dataset Omni-TryOn, which contains over 380k diverse and high-quality garment-model-tryon image pairs and detailed text prompts. Then, we employ the token concatenation and design an adaptive position encoding to effectively incorporate multiple reference conditions. To relieve the bottleneck of long sequence computation, we are the first to introduce Shifted Window Attention into the diffusion model, thus achieving a linear complexity. To remedy the performance degradation caused by local window attention, we utilize multiple timestep prediction and an alignment loss to improve generation fidelity. Experiments reveal that, under various complex scenes, our method achieves the best performance in both the model-free VTON and VTOFF tasks and a performance comparable to current SOTA methods in the model-based VTON task.
format Preprint
id arxiv_https___arxiv_org_abs_2603_19643
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle OmniDiT: Extending Diffusion Transformer to Omni-VTON Framework
Zeng, Weixuan
Wei, Pengcheng
Wang, Huaiqing
Zhang, Boheng
Sun, Jia
Fan, Dewen
HE, Lin
Chen, Long
Gan, Qianqian
Yang, Fan
Gao, Tingting
Computer Vision and Pattern Recognition
Artificial Intelligence
Despite the rapid advancement of Virtual Try-On (VTON) and Try-Off (VTOFF) technologies, existing VTON methods face challenges with fine-grained detail preservation, generalization to complex scenes, complicated pipeline, and efficient inference. To tackle these problems, we propose OmniDiT, an omni Virtual Try-On framework based on the Diffusion Transformer, which combines try-on and try-off tasks into one unified model. Specifically, we first establish a self-evolving data curation pipeline to continuously produce data, and construct a large VTON dataset Omni-TryOn, which contains over 380k diverse and high-quality garment-model-tryon image pairs and detailed text prompts. Then, we employ the token concatenation and design an adaptive position encoding to effectively incorporate multiple reference conditions. To relieve the bottleneck of long sequence computation, we are the first to introduce Shifted Window Attention into the diffusion model, thus achieving a linear complexity. To remedy the performance degradation caused by local window attention, we utilize multiple timestep prediction and an alignment loss to improve generation fidelity. Experiments reveal that, under various complex scenes, our method achieves the best performance in both the model-free VTON and VTOFF tasks and a performance comparable to current SOTA methods in the model-based VTON task.
title OmniDiT: Extending Diffusion Transformer to Omni-VTON Framework
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2603.19643