---
license: mit
tags:
- thermal
- radiometric
- drone
- dji
- calibration
- photogrammetry
---

# 🛸 STR Drones: DJI Thermal Calibration Dataset

Welcome to the **DJI Thermal Calibration Dataset** provided by **STR Drones**. This repository contains a curated collection of raw, radiometric thermal images captured exclusively with DJI Enterprise sensors. 

It is designed for developers, researchers, and remote sensing professionals who need to build, test, and calibrate post-processing software that reads DJI's proprietary radiometric metadata.

## 🛠️ Supported Sensors
This dataset includes sample telemetry and radiometric `.JPG` / `.RJPG` imagery from the following DJI platforms and payloads:

* **Matrice & Zenmuse Series:** Zenmuse H30T, Zenmuse H20T, Zenmuse H20N, Matrice 30T (M30T)
* **Mavic Series:** Mavic 4 Thermal (M4T), Mavic 3 Thermal (M3T), Mavic 2 Enterprise Advanced (M2EA)
* **Dock Series:** Matrice 3TD (M3TD)
* **Legacy/Collaborative Sensors:** Zenmuse XT2, Zenmuse XT S, Zenmuse XT R

## 🖼️ Examples

| DJI H30T | DJI M4T | DJI M30T |
|:---:|:---:|:---:|
| <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/HmaDrnsa1cj3qGGtf-dIt.jpeg" width="300" /> | <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/oZwTxTYv3E9O2gZunFnWw.jpeg" width="300" /> | <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/ShRr9npAzFepy7_062P2k.jpeg" width="300" /> |

| DJI M3TD | DJI H20N | DJI H20T |
|:---:|:---:|:---:|
| <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/J-72cekvkfNemizwTvcX8.jpeg" width="300" /> | <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/rPQtgwG8t7py5bVNAQLng.jpeg" width="300" /> | <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/fn0uzUZ9FlUo-52tsTFXI.jpeg" width="300" /> |

| DJI XTS | DJI M2EA | DJI M3T |
|:---:|:---:|:---:|
| <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/CfQXO9qexxnpUkGsFU18w.jpeg" width="300" /> | <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/H29MnVY75koW4r62ji8rv.jpeg" width="300" /> | <img src="https://cdn-uploads.huggingface.co/production/uploads/693ed8c6cdf405dfe87ebb86/EnrMrgglwp28hY-1xSkTL.jpeg" width="300" /> |

## 📏 Technical & Radiometric Specifications

| Camera Model | Resolution (W x H) | File Type | Modifiable Parameters | EXIF Readable | DJI SDK Readable |
| :--- | :---: | :---: | :---: | :---: | :---: |
| **DJI H30T** | 1280 x 1024 | JPEG | 5 | ❌ | dji_thermal_sdk_v1.8 |
| **DJI M4T** | 640 x 512 | JPEG | 5 | ❌ | dji_thermal_sdk_v1.8 |
| **DJI M3TD** | 640 x 512 | JPEG | 4 | ❌ | dji_thermal_sdk_v1.8 |
| **DJI M30T** | 640 x 512 | JPEG | 4 | ✅ | -- |
| **DJI H20T** | 640 x 512 | JPEG | 4 | ✅ | -- |
| **DJI H20N** | 640 x 512 | JPEG | 4 | ✅ | -- |
| **DJI M3T** | 640 x 512 | JPEG | 4 | ✅ | -- |
| **DJI M2EA** | 640 x 512 | JPEG | 4 | ✅ | -- |
| **DJI XTS** | 640 x 512 | JPEG | 4 | ✅ | -- |

### Technical Notes:
* **Modifiable Parameters:** The standard 4 parameters are:
  - `Object Distance`
  - `Emissivity`
  - `Relative Humidity`
  - `Reflected Temperature`
  
  Newer models (H30T/M4T) support a 5th parameter:
  - `Ambient Temperature`
  - Old DJI models contain this parameter with a default value of 25ºC.
  
* **EXIF Compatibility:** Models marked with ❌ store thermal data in encrypted proprietary structures; these require specific decryption/mapping via DJI's native libraries.
* **Metadata Versioning:** All dataset metadata and telemetry extraction was performed using **ExifTool version 13.59**.

> 🔒 **Privacy & Data Protection Note:** All GPS coordinates, altitude data, and location-specific metadata have been intentionally stripped or disabled. This ensures geographic anonymity without affecting the core radiometric telemetry.

## 📁 Dataset Structure
The dataset is organized by camera model. Inside each folder, you will find raw images and corresponding metadata files:
- EXIF metadata: Provided as `.json`
- DJI Thermal SDK metadata: Provided as `.json`

*Maintained by [STR Drones](https://str-drones.eu). Engineered for precision.*