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Motion4D: Learning 3D-Consistent Motion and Semantics for 4D Scene Understanding • We propose Motion4D, a model that integrates 2D priors from foundation models into a dynamic 3D Gaussian Splatting representation. This achieves consistent motion and semantic modeling from monocular videos. • We design a two-part iterative optimization framework comprising: - Sequential optimization: updates motion and semantic fields in consecutive stages to maintain local consistency. - Global optimization: jointly refines all attributes to ensure long-term coherence. • We introduce iterative motion refinement using 3D confidence maps and adaptive resampling to enhance dynamic scene reconstruction. Semantic refinement corrects 2D semantic inconsistencies through iterative updates with SAM2. • Our Motion4D significantly outperforms both 2D foundation models and existing 3D methods in tasks such as video object segmentation, point-based tracking, and novel view synthesis.
Paper (pdf): https://t.co/POADj0bzsO Project: https://t.co/SEmM7IIDB5
RT @arvidkahl: Tomorrow on the podcast and in the newsletter: why you should never start a SaaS business. A couple of really painful lesso…
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写技术文档时，我们常用 Markdown 格式记录，但想把这些文档发布成网站却挺麻烦，现有工具要么配置复杂，要么生成的网站加载很慢。 在 GitHub 上看到 docmd 这个开源工具，它能将我们的 Markdown 文件快速转换成美观的静态文档网站，真正做到零配置、开箱即用！ 基于 Node.js 开发，只需三个简单命令就能完成从初始化到部署的全过程，生成的网站轻量且快速。 而且支持多种主题、语法高亮和深色模式，还提供提示框、卡片、步骤等组件，也可以自定义页面内容。 GitHub：https://t.co/EKAISwviVM 除此之外，还内置了 SEO、Analytics 和 Sitemap 插件，可以用来优化网站的体验。 通过 npm 全局安装后即可使用，生成的静态网站可部署到 GitHub Pages、Vercel 等任意平台。
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RT @rakyll: There is a reason why most large companies are doomed. They value complexity more than anything else. People fabricate complexi…
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