About the training stratage
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chencn2020 commented
Hi, I find that some jod-score is negative.
I'd like to know when you training a IQA model, like HyperIQA, do you do some process with jod scores, or do you just let the model predict negative jod.
Looking forward to your replay :)
nicolasch96 commented
Hello,
Yes since the scores are on a JOD scale (Just Objectionable Difference), they don't need to be strictly positive. Since the scores are open the prediction can be negative yes, we don't use any sigmoid here.
I hope I answered your question.
Nicolas