LGC Dataset

This is an uncooled LWIR dataset named LGC. It was captured utilizing the IRay Tech LGC6122 uncooled infrared core, a device also employed inpractical applications. A significant advantage of our dataset lies in the 72 mm focal length of the LGC6122, which facilitates the detection of human subjects at distances of up to 1.3 kilometers and vehicles at distances of 1.7 kilometers. In contrast, the FLIR dataset features a focal length of 13 mm, while the KAIST dataset has a focal length of 7.5 mm. The LGC6122 operates at a standard resolution of 640 × 512 pixels and functions withinthe 8–12 μm wavelength range, characteristic of typical LWIR detectors. The infrared images included in our dataset were captured at Kunming Pool Qixi Park in Xi’an, Shaanxi, China. Data collection occurred during nighttime and afternoon hours in both spring and winter seasons. The scenes represented in our dataset encompass buildings, lakes, and trees observed from considerable distances, thereby offering a diverse array of challenging scenarios for infrared image enhancement. Given the labor-intensive process of identifying appropriate locations for long-distance target detection, our dataset comprises a total of 668 images. 

本数据集为一款名为LGC的非制冷长波红外（Long Wave Infrared，LWIR）数据集。该数据集基于IRay Tech公司的LGC6122非制冷红外机芯采集而成，该机芯同样应用于实际落地场景中。本数据集的显著优势在于LGC6122搭载了72mm焦距镜头，可实现最远1.3千米外的人体目标检测，以及1.7千米外的车辆目标检测。与之相比，FLIR数据集的焦距为13mm，KAIST数据集的焦距则为7.5mm。LGC6122的标准分辨率为640×512像素，工作波长范围为8~12μm，符合典型长波红外探测器的特性。本数据集包含的红外图像采集自中国陕西省西安市昆明池七夕公园。数据采集时段覆盖春季与冬季的夜间及午后时段。数据集内的场景包含远距离拍摄的建筑、湖泊与树木，可为红外图像增强任务提供多样化的高难度测试场景。考虑到为长距离目标检测选取合适采集场景的过程耗时费力，本数据集最终共包含668张红外图像。