SPD-DDPM: Denoising Diffusion Probabilistic Models in the Symmetric Positive Definite Space.
Yunchen LiZhou YuGaoqi HeYunhang ShenKe LiXing SunShaohui LinPublished in: AAAI (2024)
Keyphrases
- denoising
- probabilistic model
- symmetric positive definite
- spd matrices
- image denoising
- graphical models
- riemannian manifolds
- diffusion tensor
- distribution function
- total variation
- nonlinear diffusion
- anisotropic diffusion
- natural images
- positive definite
- image processing
- low dimensional
- search space
- dw mri
- von neumann
- kernel matrix
- wavelet packet
- euclidean space
- bayesian networks