Noise Schedules¶
Noise schedules control how noise is added during the diffusion process. They determine the amount of noise added at each timestep.
Base Noise Schedule¶
The base class for all noise schedules. It defines the interface for noise schedule implementations.
Main Methods:
- __call__(t): Calculates noise magnitude at time t.
- integral_beta(t): Calculates the integral of the noise function up to time t.
Linear Noise Schedule¶
A simple noise schedule where noise increases linearly from beta_min to beta_max.
Main Methods:
- __call__(t): Returns linearly increasing noise values.
- integral_beta(t): Computes the integral of the linear noise function.
Cosine Noise Schedule¶
A noise schedule using a cosine function for smoother transitions between noise levels.
Main Methods:
- __call__(t): Returns noise values following a cosine curve.
- integral_beta(t): Computes the integral of the cosine noise function.