Metrics for TP/FP detection

[Westerby]

Hello, in the paper it is mentioned that "true positive finding if the maximal point resides in a 3D bounding box annotated by the radiologist". Do you know if that was dealt with automatically? How were predictions assigned to GT boxes if there were several detections and several bounding boxes?

Thanks.

[lsqshr]

Not sure if I understood your question. True positive here means true positive markers that can be catched by a lesion finding annotated by the radiologist (3D bounding box).

There could be multiple detected markers outputted by the nonmaximal suppression in the same volume. The maximal point here means the local maximals. Not the global maximal.

Hope I answered your question.

For a good example to compute the FROC curve, you can check the script from the LUNA challenge:https://luna16.grand-challenge.org/evaluation/

On Tue, Oct 8, 2019, 6:04 AM Westerby [email protected] wrote:

Hello, in the paper it is mentioned that "true positive finding if the maximal point resides in a 3D bounding box annotated by the radiologist". Do you know if that was dealt with automatically? How were predictions assigned to GT boxes if there were several detections and several bounding boxes?

Thanks.

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