An engagement ring is a ring indicating that the person wearing it is engaged to be married, especially in Western cultures.In Western countries, engagement rings are worn mostly by women, and rings can feature diamonds or other gemstones. In some other cultures men and women wear matching rings.n engagement ring is a ring indicating that the person wearing it is engaged to be married, especially in Western cultures.
Stereoscopy, sometimes called stereoscopic imaging, is a technique used to enable a three-dimensional effect, adding an illusion of depth to a flat image. Stereopsis, commonly (if imprecisely) known as depth perception, is the visual perception of differential distances among objects in oneâs line of sight.
Stereopsis, also known as stereoscopic depth perception, is the ability of both eyes to see the same object as one image and to create a perception of depth. It is a measure of binocular visual function, i.e. how well both eyes work together.