这是一款基于 LTX 2.3 视频扩散模型 + 局部Latent重建（SetLatentNoiseMask）+ 音视频联合生成（AV Latent）+ 二阶段结构约束（CropGuides） 的视频去字幕与局部重绘应用。系统首先对输入视频进行编码，然后通过 Mask 控制仅在指定区域注入噪声，再利用扩散模型对该区域进行重新生成，从而实现“去字幕但不破坏原视频结构”的效果。相比传统马赛克或覆盖处理，这条流通过 BlockifyMask + AV Latent + CropGuides 结构，在时间维度上保持连续性，有效避免闪烁、边缘撕裂和背景塌陷，同时还能结合音频驱动，使视频节奏与生成内容保持一致。
它特别适合做：短视频去字幕、搬运去重、广告清理、视频局部替换以及数字人口型驱动生成等场景。核心能力不是简单“删除字幕”，而是：在原视频不变的前提下，对指定区域进行AI重建。 使用时重点关注三项：mask范围（决定改哪里）、提示词（决定生成什么）、采样强度（决定效果质量）。
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