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: (stereopsis or stereoscopic vision) vision wherein two separate images from two eyes are successfully combined into one image in the brain. Stereopsis is an aspect of normal healthy vision. Here's how it works. First, both eyes must be accurately aimed at the same target (that's binocular vision, but it's not yet stereoscopic vision!) Then, because the two eyes are located in different positions, each takes in a unique view from its own perspective.