First- and second-order contrast stimuli can be described for the visual, auditory and tactile senses. Similarly, electrosensory contrast patterns vary over large spatial and temporal scales. Fast ...

Researchers previously believed contrast sensitivity function -- the minimum level of black and white that a person needs to detect a pattern -- was mainly dictated by the optics of the eye and ...

The disc of red, green, and cyan LEDs gives the device built-in lighting and enhances contrast, letting it clearly detect features other sensors might miss. The Checker detects features on parts, not ...

Painting army vehicles with high contrast geometric patterns -- "dazzle camouflage" -- affects the perception of their speed and thus could make them less susceptible to rocket propelled grenade ...