Confusion matrices for the overall (left) and only the observational (right) data in the validation dataset calculated based on the predicted class and bounding boxes by setting the IoU and confidence level to 0.5. We note that 0.08% of pulsation and 0.41% of the minimum patterns were detected as background, namely, predicted as though they are not objects of interest for the overall data, while the percentages are 0.36% and 0.26% for observations. The letters P and M refer to pulsation and minimum patterns, respectively.