PolypSteer: Counterfactual Endoscopic Synthesis

Training-free activation steering for endoscopic image generation. Generate a baseline endoscopic image and its steered counterfactual (with pathological features suppressed) using a PixArt-α model fine-tuned on Kvasir.

Baseline (fine-tuned model)

Steered (concept suppressed)

Examples

Model: PixArt-α with LoRA adapters from phamtrongthang/medsteer.
Paper: PolypSteer: Counterfactual Endoscopic Synthesis via Training-Free Activation Steering
Code: GitHub