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InstanceDiffusion: Instance-level Control for Image Generation

XuDong Wang · Trevor Darrell · Sai Saketh Rambhatla · Rohit Girdhar · Ishan Misra

Arch 4A-E Poster #139
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Wed 19 Jun 5 p.m. PDT — 6:30 p.m. PDT

Abstract: Text-to-image diffusion models produce high quality images but do not offer control over individual instances in the image. We introduce InstanceDiffusion that adds precise instance-level control to text-to-image diffusion models. InstanceDiffusion supports free-form language conditions per instance and allows flexible ways to specify instance locations such as simple single points, scribbles, bounding boxes or intricate instance segmentation masks, and combinations thereof. We propose three major changes to text-to-image models that enable precise instance-level control. Our UniFusion block enables instance-level conditions for text-to-image models, the ScaleU block improves image fidelity, and our Multi-instance Sampler improves generations for multiple instances. InstanceDiffusion significantly surpasses specialized state-of-the-art models for each location condition. Notably, on the COCO dataset, we outperform previous state-of-the-art by 20.4\% AP$_{50}^\text{box}$ for box inputs, and 25.4\% IoU for mask inputs.

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