What is the matrix c denote?

Reyhanehne / CVF-SID_PyTorch

Official implementation of the paper "CVF-SID: Cyclic multi-Variate Function for Self-Supervised Image Denoising by Disentangling Noise from Image" (CVPR 2022)

70 stars 11 forks source link

What is the matrix c denote? #7

Open SparkElf opened 1 year ago

SparkElf commented 1 year ago

Hello,I would like to ask,what is the matrix c below denote? It would be appreciate if you could explain the meaning of std below：

Reyhanehne commented 1 year ago

In section 3.4 we assumed that and ideal clean image is approximately constant for a j-th patch I_c~C and Var(I_c)~0 for a small local region. Therefore Var(I_c+I_cN_d) = Var(I_c)+Var(I_cN_d) = 0+Csigma_d = Csigma_d.