update readme

Author: xjiangan

README.md

@@ -1 +1,18 @@
-# scrstudio
+<p align="center">
+    <!-- <img alt="nerfstudio" src="media/sdf_studio_4.png" width="300"> -->
+    <h1 align="center">SCRStudio <br> A Unified Framework for Scene Coordinate Regression</h1>
+        <!-- <h3 align="center"><a href="https://arxiv.org/abs/2406.04340">Arxiv</a>  -->
+    <img src="docs/module.png" center width="95%"/>
+</p>
+
+# About
+SCRStudio is a unified and modular framework for Scene Coordinate Regression (SCR)-based visual localization, built on top of the awesome [nerfstudio](https://github.com/nerfstudio-project/nerfstudio) project.
+
+The library supports a more interpretable implementation of SCRs by modularizing each component from input encoding, network architecture, to supervision strategies. We provide a unified implementation of three major SCR methods: ACE, GLACE, and R-SCoRe. It supports various pretrained local encoding, both sparse and dense, while also incorporates state-of-the-art techniques for integrating global encodings.
+
+
+# Release Plan
+We are actively preparing SCRStudio for public release. Below is the tentative schedule:  
+
+- [ ] March 2025: Initial release of SCRStudio.
+- [ ] April 2025: SCRStudio Viewer.