def METHOD_NAME(image):
    # Download inference model
    url = 'https://paddleseg.bj.bcebos.com/inference/pp_liteseg_infer_models/pp_liteseg_stdc1_cityscapes_1024x512_scale1.0_160k_inference_model.zip'
    savepath = './pp_liteseg_stdc1_cityscapes_1024x512_scale1.0_160k_inference_model.zip'
    if not os.path.exists('./pp_liteseg_stdc1_cityscapes_1024x512_scale1.0_160k_inference_model'):
        _download_file(url=url, savepath=savepath)
        uncompress(savepath)
    # Inference
    predictor = Predictor(cfg='./pp_liteseg_stdc1_cityscapes_1024x512_scale1.0_160k_inference_model/deploy.yaml')
    alpha = predictor.run(image)
    return alpha