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视频编码论文

时间:2020-06-23 13:42:22      阅读:72      评论:0      收藏:0      [点我收藏+]

标签:var   ase   ide   math   class   variables   splay   ips   pre   

Deep Generative Video Compression(NIPS2019)

Based on VAE

Decoder(use stochastic recurrent variational auto-encoder): \(z_t=\)latent variables, \(f=\)global variables(optionally)

\[p_\theta(x_{1:T},z_{1:T},f)=p_\theta(f)p_\theta(z_{1:T})\prod_{t=1}^{T}p_\theta(x_t|z_t,f) \p_\theta(x_t|z_t,f)=Laplace(\mu_\theta(z_t,f),\lambda^{-1}1) \\widetilde{x}_t=\mu_\theta(z_t,f)=decoder\;mean \]

Encoder(use amortized variational inference): \(f=\)global variables inferred from all video frames, \(z_t\) inferred from a single frame \(x_t\)

\[q_\phi(z_{1:T},f|x_{1:T})=q_\phi(f|x_{1:T})\prod_{t=1}^{T}q_\phi(z_t|x_t) \]

视频编码论文

标签:var   ase   ide   math   class   variables   splay   ips   pre   

原文地址:https://www.cnblogs.com/hhhhhxh/p/13181317.html

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