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TransientViT: A novel CNN - Vision Transformer hybrid real/bogus transient classifier for the Kilodegree Automatic Transient Survey

TransientViT is a CNN - Vision Transformer (ViT) hybird model to differentiate between transients (real detections) and image artifacts (bogus detections) for the Kilodegree Automatic Transient Survey (KATS). Some image samples are provided in ./images for evaluation.

Quickstart Guide

0. 环境

pip install -r requirements.txt

1. 数据准备

将待分类的图片放置于images

images的目录结构如下所示

images
├── 1230719191550003741.jpg
├── 1230719194852001012.jpg
├── 1230719195125006555.jpg
├── ...
└── 6230719202803006276.jpg

2. 推理

2.1 多文件推理

运行下述代码,完成对images文件夹内所有图片的推理,并输出json文件

python inference.py --img-src images --device 0 --out-path output/result.json

运行结束后,检查输出文件:output/results.json,即可查看类别,置信度以及cross inference的具体推理结果

注:上述代码同rb_classify.sh脚本的内容相同


2.2 单文件推理

运行下述代码,完成单个图像的推理,并输出json文件

python inference.py --img-src images/6230719202803006276.jpg --device 0 --out-path output/result_single.json

运行结束后,检查输出文件:output/results_single.json,即可查看类别,置信度以及cross inference的具体推理结果

注:上述代码同rb_single_classify.sh脚本的内容相同


2.3 推理结果

推理结果的格式为列表嵌套多个字典,每个字典即为一张3x2或3x3的instance分类结果

(1)file_name:该instance的图片名

(2)class:该instance的类别

(3)conf:该instance为上述类别的置信度

(4)cross_inf_result:键(如'0,1', '0,2')即为cross inference所取的NRD图像的索引,值的conf即为该索引下推理的置信度,vote为该索引下推理得到的类别

[
    {
        "file_name": "1230719194852001012.jpg",
        "class": "real",
        "conf": 0.958899974822998,
        "cross_inf_result": {
            "0,1": {
                "conf": 0.9520036578178406,
                "vote": "real"
            },
            "0,2": {
                "conf": 0.9649118781089783,
                "vote": "real"
            },
            "1,2": {
                "conf": 0.9597845077514648,
                "vote": "real"
            }
        }
    },
]

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TransientViT: A novel CNN - Vision Transformer hybrid real/bogus transient classifier for the Kilodegree Automatic Transient Survey

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