Update README.md

README.md

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-license: cc-by-nc-3.0
+license: cc-by-nc-sa-3.0
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 This repo contains the checkpoints for OminiAbnorm-CT, a multi-modal generative model for grounded abnormality analysis on CT images from multiple planes and all human body regions.
 It supports three representative tasks:
 - Visual prompted report generation: Interpret an abnormality marked by a red bounding box, ellipse, contour, or cropped region.
 - Grounded report generation: Ground and interpret all abnormalities on the CT image.
 - Text-guided grounded report generation: Detect, ground and interpret a specific abnormality on the CT image.
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 ![Example Figure](Model.png)
 
 It is built on **[OminiAbnorm-CT-14K](https://huggingface.co/datasets/zzh99/OminiAbnorm-CT-14K)**, the first large-scale dataset designed for abnormality grounding and description on multi-plane whole-body CT imaging. 
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 ![Example Figure](Demo.png)
 
-Check our [paper](https://www.arxiv.org/abs/2506.03238) and [github repo](https://github.com/zhaoziheng/OminiAbnorm-CT) for more details.
+Check our [paper](https://www.arxiv.org/abs/2506.03238) and [github repo](https://github.com/zhaoziheng/OminiAbnorm-CT) for usage and more details.