**Dataset Description**
This thermal image dataset was collected using the FLIR Lepton 3.5 thermal camera module integrated with a Raspberry Pi 4B board. The data collection was carried out in two distinct indoor environments — a classroom and a research lab — representing varying occupant densities and interaction patterns.
- The classroom setting represents a dense environment, where students are seated close to one another.
- The lab setting represents a sparse environment, where occupants are more spread out and typically engaged in individual or small-group activities.
In both environments, the thermal camera setup was wall-mounted, with occupants maintaining a reasonable distance from the device to simulate realistic deployment scenarios.
In the classroom environment, the camera’s field-of-view (FOV) typically captured 12 to 15 students. The data includes a diverse set of conditions such as:
- Varying crowd densities
- Different head orientations
- Occlusion scenarios
- Students with and without eyeglasses
In the lab environment, the camera’s FOV captured a maximum of 6 occupants performing different activities, including sitting, standing, and walking. The dataset captures varying distances from the camera, diverse head poses, and the presence or absence of eyeglasses.
A summary of the dataset size is provided in the table below. Please refer to the [**accompanying paper**][1] for detailed information on data collection methodology, experimental setup, and potential use cases.
Raw classroom data: 2735
Resized classroom data: 2735
Resized and augmented classroom data: 4799
Raw lab data: 2844
Resized lab data: 2844
Resized and augmented lab data: 4962
Resized combined data: 5579
Resized and augmented combined data: 9761
**Citation**
If you use this dataset in your research or analysis, please cite the following paper:
Arijit Samal, Haroon R. Lone. Thermal Vision: Pioneering Non-Invasive Temperature Tracking in Congested Spaces. Smart Health, Elsevier (2025).
[1]: https://www.sciencedirect.com/science/article/pii/S2352648325000376
