Add README with dataset documentation

README.md

@@ -1,41 +1,43 @@
 ---
 license: mit
 configs:
-- config_name: default
-  data_files:
-  - split: train
-    path: data/train-*
-dataset_info:
-  features:
-  - name: video_name
-    dtype: string
-  - name: frames
-    sequence: image
-  - name: optical_flows
-    sequence: image
-  - name: num_frames
-    dtype: int32
-  - name: num_flows
-    dtype: int32
-  - name: question
-    dtype: string
-  - name: label
-    dtype: string
-  - name: video_path
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 2167291393.0
-    num_examples: 316
-  download_size: 158338775
-  dataset_size: 2167291393.0
+  - config_name: default
+    data_files:
+    - split: test
+      path: data/test-*.parquet
+    - split: train
+      path: data/train-*.parquet
 ---
-
 # CameraBench optical flow dataset
 
 A balanced VQA dataset for evaluating camera motion understanding in videos.
 
-This README accumulates per-split statistics without overwriting existing content.
+## 📊 Dataset Statistics
+
+- **Total Questions**: 249
+- **Unique Videos**: 70
+- **Unique Questions**: 13
+- **Yes Answers**: 89 (35.7%)
+- **No Answers**: 160 (64.3%)
+- **Balance Ratio**: 0.56
+- **Total Size**: 258.40 MB (0.25 GB)
+- **Average Video Size**: 3.69 MB
+
+## 🎯 Task Categories
+
+This dataset covers various camera motion tasks.
+
+## 📝 Dataset Format
+
+The dataset consists of MP4 video files with frames and optical flows stored in Parquet format.
+
+Each record contains:
+- `video_name`: Original video filename
+- `video_path`: Relative path to video file (e.g., `videos/video.mp4`)
+- `frames`: Sequence of extracted video frames
+- `optical_flows`: Sequence of optical flow visualizations
+- `question`: Binary question about camera motion
+- `label`: Answer ("Yes" or "No")
 
 <!-- SPLIT-SECTION:train:START -->
 ## Split: train