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arXiv 2406.15331cs.CVcs.GRcs.LG

面向自然场景零样本虚拟试穿的掩码扩展注意力机制

Masked Extended Attention for Zero-Shot Virtual Try-On In The Wild

Tel Aviv University(特拉维夫大学)

Nadav Orzech, Yotam Nitzan, Ulysse Mizrahi, Dov Danon, Amit H. Bermano

AI总结:

本研究提出一种无需额外训练的零样本虚拟试穿方法,借助扩散模型先验与带掩码的扩展注意力机制,缓解纹理粘连与背景泄露问题,在未见过的衣物和人物上实现了更优的试穿图像质量与特征保留效果。

摘要:

虚拟试穿(Virtual Try-On, VTON)是一个需求持续增长的高活跃研究方向,其目标是将图像中的一件衣物替换为另一件衣物,同时保留人物与衣物特征以及图像保真度。现有研究针对该任务采用有监督方法,这会削弱泛化能力并带来高昂计算成本。本文提出了一种无需训练的新型零样本方法,用于通过参考图像修复衣物。我们的方法利用扩散模型的先验知识且无需额外训练,充分发挥其原生泛化能力。该方法采用扩展注意力将参考图像的信息迁移到目标图像,克服了两大关键挑战:首先,我们利用深度特征将参考衣物初步对齐到目标人体上,缓解“纹理粘连”问题;随后,我们采用经过精细掩码设计的扩展注意力机制,消除参考背景的泄露与不必要的干扰。通过用户研究以及与当前最优方法的定性、定量对比,我们证明该方法在处理未见过的衣物或人物时,图像质量与衣物特征保留效果更优。

英文摘要:

Virtual Try-On (VTON) is a highly active line of research, with increasing demand. It aims to replace a piece of garment in an image with one from another, while preserving person and garment characteristics as well as image fidelity. Current literature takes a supervised approach for the task, impairing generalization and imposing heavy computation. In this paper, we present a novel zero-shot training-free method for inpainting a clothing garment by reference. Our approach employs the prior of a diffusion model with no additional training, fully leveraging its native generalization capabilities. The method employs extended attention to transfer image information from reference to target images, overcoming two significant challenges. We first initially warp the reference garment over the target human using deep features, alleviating "texture sticking". We then leverage the extended attention mechanism with careful masking, eliminating leakage of reference background and unwanted influence. Through a user study, qualitative, and quantitative comparison to state-of-the-art approaches, we demonstrate superior image quality and garment preservation compared unseen clothing pieces or human figures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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