The ability to see ultraviolet (UV) light (<400 nm) may have importance for foraging, communication or navigation in many taxa including insects, crustaceans, fishes, amphibians, reptiles, birds and mammals. Behavioural experiments reveal how vision mediates such behaviour; however, our knowledge of UV perception is constrained by the challenge creating calibrating stimuli that reflect emit UV....

The galvactivator is a glove-like wearable device that senses the wearer's skin conductivity and maps its values to a bright LED display, making the skin conductivity level visible. Increases in skin conductivity tend to be good indicators of physiological arousal --causing the galvactivator display to glow brightly. The new form factor of this sensor frees the wearer from the traditional requi...

Face Recognition is widely used in security systems, such as surveillance, gate control systems, and guard robots, due to their user friendliness and convenience compared to other biometric approaches. Secure face recognition systems require advanced technology for face liveness detection, which can identify whether a face belongs to a real client or a portrait. However, with the development of...

Studies of visual effects of road signs have shown that having dynamic imagery, and even better, animation, helps improve road signs as it increases a viewer’s attentiveness. However, currently existing animated imagery signs, which are usually digital billboards, have drawbacks including distraction caused by bright LED lights, large energy consumption, and expensiveness. To overcome the probl...

Big graphical screens are becoming more common as their prices have significantly dropped in the recent years, providing advertisements, traffic information, timetables, navigation, and other information services. This paper describes a construction of a cheap alternative to the expensive commercial products. This paper provides a technical solution for a low-resolution panel based on strips co...

Electronic information display systems are widely used in public places. The increase in use of light-emitting diodes (LED) display arouses our interest in the effective methods of displaying dynamics text. In order to overcome the limitations of screen size of the display units, numerous means of presenting moving materials on dynamic display have been invented. However, in the past, researche...