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Poster
PaintSeg: Painting Pixels for Training-free Segmentation
Xiang Li · Chung-Ching Lin · Yinpeng Chen · Zicheng Liu · Jinglu Wang · Rita Singh · Bhiksha Raj

Wed Dec 13 08:45 AM -- 10:45 AM (PST) @ Great Hall & Hall B1+B2 #212
in Poster Session 3 »
Event URL: https://github.com/lxa9867/PaintSeg »

The paper introduces PaintSeg, a new unsupervised method for segmenting objects without any training. We propose an adversarial masked contrastive painting (AMCP) process, which creates a contrast between the original image and a painted image in which a masked area is painted using off-the-shelf generative models. During the painting process, inpainting and outpainting are alternated, with the former masking the foreground and filling in the background, and the latter masking the background while recovering the missing part of the foreground object. Inpainting and outpainting, also referred to as I-step and O-step, allow our method to gradually advance the target segmentation mask toward the ground truth without supervision or training. PaintSeg can be configured to work with a variety of prompts, e.g. coarse masks, boxes, scribbles, and points. Our experimental results demonstrate that PaintSeg outperforms existing approaches in coarse mask-prompt, box-prompt, and point-prompt segmentation tasks, providing a training-free solution suitable for unsupervised segmentation. Code: https://github.com/lxa9867/PaintSeg.

Author Information

Xiang Li (Carnegie Mellon University)
Chung-Ching Lin (Microsoft)
Yinpeng Chen (Microsoft)
Zicheng Liu (Microsoft)
Jinglu Wang (Microsoft Research Asia)
Rita Singh (Carnegie Mellon University)
Bhiksha Raj (Carnegie Mellon University)

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