Create README.md

README.md

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+# OPV2V-H dataset
+
+Based on the original OPV2V dataset, we supplemented 16-line, 32-line lidar data for each agent, as well as 4 depth cameras. Annotations will be shared with the original OPV2V, so please download the original OPV2V dataset as well.
+
+
+
+1. Depth Data
+
+   `OPV2V-H-depth.zip ` stores the depth camera data. You can directly uncompress them:
+
+   ```
+   unzip OPV2V-H-depth.zip
+   ```
+
+   
+
+2. LiDAR Data
+
+   `OPV2V-H-LiDAR-partxx`  is a volume-compressed slice. They store 16-line and 32-line LiDAR data. You can unzip them using
+
+   ```
+   cat OPV2V-H-LiDAR-part* > OPV2V-H-LiDAR.zip
+   unzip OPV2V-H-LiDAR.zip
+   ```
+
+   
+
+A desired output structure will be 
+
+```
+─ OPV2V_Hetero
+ ├── test
+ ├── train
+ └── validate
+```