First of all thank you for a great work
I have a question about your denoising sampling process
In your code, it looks like after predicting epsilon from noise prediction model, it compute X0, and computes the mean and variance of the diffusion posterior q(x{t-1} | x_t, x0), and use this diffusion posterior mean and variance to sample x{t-1}.
Can I know the reason why not directly sample x_{t-1} using the below equation?
First of all thank you for a great work I have a question about your denoising sampling process
In your code, it looks like after predicting epsilon from noise prediction model, it compute X0, and computes the mean and variance of the diffusion posterior q(x{t-1} | x_t, x0), and use this diffusion posterior mean and variance to sample x{t-1}.
Can I know the reason why not directly sample x_{t-1} using the below equation?
Thanks.