During the night or in poorly lit areas, thermal cameras are a better choice instead of normal cameras for security surveillance because they do not rely on illumination. A thermal camera is able to detect a person within its view, but identification from only thermal information is not an easy task. The purpose of this paper is to reconstruct the face image of a person from the thermal spectru...

Thermal infrared (IR) images represent the heat patterns emitted from hot object and they don’t consider the energies reflected from an object. Objects living or non-living emit different amounts of IR energy according to their body temperature and characteristics. Humans are homoeothermic and hence capable of maintaining constant temperature under different surrounding temperature. Face recogn...

Most studies in human emotion estimation focus on visible image-based analysis which is sensitive to illumination changes. Under uncontrolled operating conditions, estimation accuracy degrades significantly. In this paper, we integrate both visible images and thermal image sequences. First, to address limitations of thermal infrared (IR) images, such as being opaque to eyeglasses, we apply ther...

Infrared cameras are becoming increasingly popular in clinics. Current practices, however, often overlook the importance of emissivity when taking thermal measurements. The consensus is that human skin has an emissivity of 0.98, but this varies between individuals, areas examined and whether the skin is damaged. This research investigated the emissivity variation of chronic wounds and its effec...

The calibration system presented in this article enables to calculate optical parameters i.e. intrinsic and extrinsic of both thermal and visual cameras used for 3D reconstruction of thermal images. Visual cameras are in stereoscopic set and provide a pair of stereo images of the same object which are used to perform 3D reconstruction of the examined object [8]. The thermal camera provides info...