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并非所有鸟都看起来一样:用于鸟类的身份保持生成

Not All Birds Look The Same: Identity-Preserving Generation For Birds

University of Massachusetts, Amherst(马萨诸塞大学阿默斯特分校)

Aaron Sun, Oindrila Saha, Subhransu Maji

AI总结:

本文提出NABirds Look-Alikes数据集,用于评估鸟类身份保持生成,显示基于物种、年龄和性别的训练提升性能。

摘要:

自可控图像生成出现以来,越来越多的控制模式使日常用户能够更灵活地定制和使用图像。零样本、身份保持模型如Insert Anything和OminiControl现在支持虚拟试穿等应用,无需额外微调。然而,这些模型在非刚性或细粒度类别上仍有局限。这些领域通常缺乏可访问的高质量数据,尤其是同一主体的视频或多视角观察,使评估和改进变得困难。然而,这些领域对于超越内容创作,转向需要准确性和细节的应用至关重要。鸟类是该任务的理想领域:它们具有高度多样性,需要细粒度线索进行识别,并且姿态多样。我们介绍了包含4,759对专家整理图像的NABirds Look-Alikes(NABLA)数据集。结合来自iNaturalist的1,073对多图像观察和少量视频,这形成了评估鸟类身份保持生成的基准。我们显示,最先进的基线模型在该数据集上无法保持身份,并证明在图像按物种、年龄和性别分组训练(作为身份的代理)显著提高了对已见和未见物种的性能。

英文摘要:

Since the advent of controllable image generation, increasingly rich modes of control have enabled greater customization and accessibility for everyday users. Zero-shot, identity-preserving models such as Insert Anything and OminiControl now support applications like virtual try-on without requiring additional fine-tuning. While these models may be fitting for humans and rigid everyday objects, they still have limitations for non-rigid or fine-grained categories. These domains often lack accessible, high-quality data -- especially videos or multi-view observations of the same subject -- making them difficult both to evaluate and to improve upon. Yet, such domains are essential for moving beyond content creation toward applications that demand accuracy and fine detail. Birds are an excellent domain for this task: they exhibit high diversity, require fine-grained cues for identification, and come in a wide variety of poses. We introduce the NABirds Look-Alikes (NABLA) dataset, consisting of 4,759 expert-curated image pairs. Together with 1,073 pairs collected from multi-image observations on iNaturalist and a small set of videos, this forms a benchmark for evaluating identity-preserving generation of birds. We show that state-of-the-art baselines fail to maintain identity on this dataset, and we demonstrate that training on images grouped by species, age, and sex -- used as a proxy for identity -- substantially improves performance on both seen and unseen species.

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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