Update README.md

README.md

@@ -1,3 +1,46 @@
----
-license: mit
----
+---
+license: mit
+language:
+- en
+size_categories:
+- n<1K
+---
+
+## Introduction
+
+[MOSIV](https://arxiv.org/abs/2603.06022) is a synthetic dataset designed for the task of **multi-object system identification from videos**, where the goal is to recover both the **4D geometry (time-varying 3D shape)** and the **physical properties** (e.g., stiffness, friction, plasticity) of multiple interacting objects directly from multi-view video observations.
+
+MOSIV features **contact-rich, multi-object interactions** with diverse materials and complex dynamics. Each sequence contains multiple objects undergoing collisions, deformation, and motion, along with ground-truth physical parameters and simulation data.
+
+The dataset is generated using [Genesis simulator](https://github.com/Genesis-Embodied-AI/Genesis) and supports tasks such as:
+- Dynamic 3D / 4D reconstruction
+- Physics-based system identification
+- Multi-object interaction modeling
+- Future state prediction and simulation
+
+## Dataset Structure
+
+The dataset is organized hierarchically based on the number of objects and sequence IDs.
+
+```
+MOSIV/
+├── 2objs/
+│   ├── 01/
+│   │   ├── data/
+│   │   ├── masks/
+│   │   ├── masks_vis/
+│   │   ├── point_clouds/
+│   │   ├── videos/
+│   │   ├── all_data.json
+│   │   ├── metadata.json
+│   │   ├── points3d.ply
+│   │   ├── transforms_train.json
+│   │   ├── transforms_val.json
+│   │   └── transforms_test.json
+│   ├── 02/
+│   └── …
+├── 3objs/
+│   ├── 012/
+│   ├── 013/
+│   └── …
+```