Upload README.md

README.md

@@ -124,13 +124,15 @@ The dataset is designed to support research on physics-aware video generation, f
 
 ### Filtering and Search
 
-The viewer should support filtering by:
+The dataset should support filtering by:
+
+- **Split**: `train`, `val`, `test`
 
 - **Activity complexity:** `single`, `double`, `triple`
+
 - **Physical domain:** `mechanics`, `fluid_dynamics`, `optics`, `magnetism`
-- **Keyword search:** scene name, physical phenomenon, caption keyword, object keyword, or material keyword
-- **Split:** `train`, `val`, `test`
-- **Availability:** rendered data, 3D assets, annotations, benchmark subset
+
+- **Phenomena ID:** `P01`, `P02`, `P03`, ... , `P71`
 
 ### Install Dependencies
 
@@ -154,7 +156,18 @@ python scripts/download.py \
   --activity_type double \
   --domain mechanics \
   --phenomena P01 P03 \
-  --modalities rgb depth seg \
+  --output_dir ./PhysInOne
+```
+
+### Download a certain number of cases (random sampling) via Filters
+
+```bash
+python scripts/download.py \
+  --split train \
+  --activity_type double \
+  --domain mechanics \
+  --phenomena P01 P03 \
+  --num 3000 \
   --output_dir ./PhysInOne
 ```
 
@@ -163,10 +176,11 @@ python scripts/download.py \
 ```bash
 python scripts/filter_cases.py \
   --split train \
-  --domain mechanics \
   --activity_type double \
+  --domain mechanics \
   --phenomena P01 P03 \
-  --output selected_cases.json
+  --num 3000 \
+  --output_dir selected_cases.json
 ```
 
 ```bash
@@ -183,8 +197,6 @@ python scripts/download.py \
 
 # 📦 Dataset Structure
 
-The exact released structure may vary depending on the hosted version. A recommended structure is shown below.
-
 ```text
 PhysInOne/
 ├── README.md
@@ -442,7 +454,7 @@ If you use PhysInOne in your research, please cite:
 ```bibtex
 @article{zhou2026physinone,
   title={PhysInOne: Visual Physics Learning and Reasoning in One Suite},
-  author={Zhou, Siyuan and Wang, Hejun and Cheng, Hu and Li, Jinxi and Wang, Dongsheng and Jiang, Junwei and Jin, Yixiao and Huang, Jiayue and Mao, Shiwei and Liu, Shangjia and Yang, Yafei and Song, Hongkang and Wei, Shenxing and Zhang, Zihui and Wang, Bing and Wang, Zhihua and Zou, Chuhang and Yang, Bo},
+  author={Zhou, Siyuan and Wang, Hejun and Cheng, Hu and Li, Jinxi and Wang, Dongsheng and Jiang, Junwei and Jin, Yixiao and Huang, Jiayue and Mao, Shiwei and Liu, Shangjia and others},
   journal={arXiv preprint arXiv:2604.09415},
   year={2026}
 }