Update README.md

README.md

@@ -47,6 +47,7 @@ Note: some calibration fields—such as camera coordinates, camera directions, a
 
 ### Directory Structure for `MTMC_Tracking_2025`
 - `videos/`: Video files.
+- `depth_maps/`: Depth maps stored as PNG images and compressed within HDF5 files. These files are exceedingly large; you may choose to use RGB videos only if preferred.
 - `ground_truth.json`: Detailed ground truth annotations (see below).
 - `calibration.json`: Camera calibration and metadata.
 - `map.png`: Visualization map in top-down view.
@@ -105,10 +106,10 @@ Contains detailed calibration metadata per sensor:
 - **2025 Edition**: Evaluation system and test set forthcoming in the 2025 AI City Challenge.
 
 ## Dataset Quantification
-| Dataset                 | Annotation Type                                       | Hours | Cameras | Object Classes & Counts                                       | No. 3D Boxes | No. 2D Boxes | Total Size |
-|-------------------------|-------------------------------------------------|-------------|----------------|-------------------------------------------------------------|--------------|--------------|------------|
-| **MTMC_Tracking_2024** | 2D bounding boxes, multi-camera tracking IDs | 212 | 953 | Person: 2,481 | 52M | 135M | 213 GB |
-| **MTMC_Tracking_2025**<br>(Train & Validation only) | 2D & 3D bounding boxes, multi-camera tracking IDs | 42 | 504 | Person: 292<br>Forklift: 13<br>NovaCarter: 28<br>Transporter: 23<br>FourierGR1T2: 6<br>AgilityDigit: 1<br>**Overall:** 363 | 8.9M | 73M | 74 GB |
+| Dataset                 | Annotation Type                                       | Hours | Cameras | Object Classes & Counts                                       | No. 3D Boxes | No. 2D Boxes | Depth Maps | Total Size |
+|-------------------------|-------------------------------------------------------|-------|---------|---------------------------------------------------------------|--------------|--------------|------------|------------|
+| **MTMC_Tracking_2024** | 2D bounding boxes, multi-camera tracking IDs | 212 | 953 | Person: 2,481 | 52M | 135M | No | 213 GB |
+| **MTMC_Tracking_2025**<br>(Train & Validation only) | 2D & 3D bounding boxes, multi-camera tracking IDs | 42 | 504 | Person: 292<br>Forklift: 13<br>NovaCarter: 28<br>Transporter: 23<br>FourierGR1T2: 6<br>AgilityDigit: 1<br>**Overall:** 363 | 8.9M | 73M | Yes | 74 GB (excluding depth maps) |
 
 ## References
 Please cite the following papers when using this dataset:
@@ -137,4 +138,5 @@ NVIDIA believes Trustworthy AI is a shared responsibility and we have establishe
 Please report security vulnerabilities or NVIDIA AI Concerns [here](https://www.nvidia.com/en-us/support/submit-security-vulnerability/).
 
 ## Changelog
+- **2025-04-27**: Added depth maps to all `MTMC_Tracking_2025` scenes.
 - **2025-04-23**: Added 2025-format calibration and ground truth JSON files to all `MTMC_Tracking_2024` scenes.