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jychoi118 / P2-weighting

CVPR 2022
MIT License
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About the formula in the appendix #8

Open Suimingzhe opened 1 year ago

Suimingzhe commented 1 year ago

Hi, I would like to consult you about the formula in A.2.Derivation in the paper. For "which is a differential of log-SNR(t) regarding time-step t", the differential of log-SNR(t) should be SNR(t)'/SNR(t)，not -SNR(t)/SNR(t)'

If I misunderstood, please reply me as soon as possible, thank you very much

jychoi118 commented 1 year ago

As written in eq.7 of section 2.2 Training Objectives, the weight lambda_t is minus reciprocal of the differential of log-SNR(t). image

And yes, the differential of log-SNR(t) is SNR(t)'/SNR(t).

Suimingzhe commented 1 year ago

Thanks for your replying.