focal-plane array
121graticule — i. An array of lines used for aiming, measuring, or determining spatial relationship. Normally used in gun sights, HUDs (head up displays), maps, and charts. Graticules of a gyro gunsight. ii. In cartography, a network of lines representing the… …
122Camera matrix — In computer vision a camera matrix or (camera) projection matrix is a 3 imes 4 matrix which describes the mapping of a pinhole camera from 3D points in the world to 2D points in an image.Let mathbf{x} be a representation of a 3D point in… …
123Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …
124photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …
125Conic section — Types of conic sections: 1. Parabola 2. Circle and ellipse 3. Hyperbola …
126Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …
127eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
128Parabolic antenna — A parabolic satellite communications antenna at Erdfunkstelle Raisting, the biggest facility for satellite communication in the world, in Raisting, Bavaria, Germany. It has a Cassegrain type feed. A parabolic antenna is an antenna that uses a… …
