49 relations: Advanced Camera for Surveys, Altitude, Angle of view, Angular resolution, Astronomy, Binocular vision, Binoculars, Bird vision, Color vision, Cone cell, Crop factor, Degree (angle), Depth perception, Electromagnetic radiation, Field of regard, Focal length, Fovea centralis, Ground sample distance, Hubble Space Telescope, Human eye, Image sensor, Image sensor format, Machine vision, Magnocellular cell, Minute and second of arc, Optical instrument, Optical transfer function, Pan-STARRS, Panorama, Parvocellular cell, Peripheral vision, Photographic plate, Quantum efficiency, Remote sensing, Retinal ganglion cell, Rod cell, Small-angle approximation, Solid angle, Square degree, Stereopsis, UK Schmidt Telescope, United Kingdom Infrared Telescope, Useful field of view, Video game, Virtual reality, VISTA (telescope), Visual field, Visual perception, 35 mm equivalent focal length.
The Advanced Camera for Surveys (ACS) is a third-generation axial instrument aboard the Hubble Space Telescope (HST).
Altitude or height (sometimes known as depth) is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, atmospheric pressure, and many more).
In photography, angle of view (AOV) describes the angular extent of a given scene that is imaged by a camera.
Angular resolution or spatial resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small details of an object, thereby making it a major determinant of image resolution.
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
In biology, binocular vision is a type of vision in which an animal having two eyes is able to perceive a single three-dimensional image of its surroundings.
Binoculars or field glasses are two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.
Vision is the most important sense for birds, since good eyesight is essential for safe flight, and this group has a number of adaptations which give visual acuity superior to that of other vertebrate groups; a pigeon has been described as "two eyes with wings".
Color vision is the ability of an organism or machine to distinguish objects based on the wavelengths (or frequencies) of the light they reflect, emit, or transmit.
Cone cells, or cones, are one of three types of photoreceptor cells in the retina of mammalian eyes (e.g. the human eye).
In digital photography, the crop factor, format factor or focal length multiplier of an image sensor format is the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital cameras, relative to 35 mm film format as a reference.
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees.
Depth perception is the visual ability to perceive the world in three dimensions (3D) and the distance of an object.
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
The field of regard (abbreviated FOR) is the total area that can be captured by a movable sensor.
The focal length of an optical system is a measure of how strongly the system converges or diverges light.
The fovea centralis is a small, central pit composed of closely packed cones in the eye.
In remote sensing, ground sample distance (GSD) in a digital photo (such as an orthophoto) of the ground from air or space is the distance between pixel centers measured on the ground.
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
The human eye is an organ which reacts to light and pressure.
An image sensor or imaging sensor is a sensor that detects and conveys the information that constitutes an image.
Note: If you came here to get a quick understanding of numbers like 1/2.3, skip ahead to table of sensor formats and sizes.
Machine vision (MV) is the technology and methods used to provide imaging-based automatic inspection and analysis for such applications as automatic inspection, process control, and robot guidance, usually in industry.
Magnocellular cells, also called M-cells, are neurons located within the Adina magnocellular layer of the lateral geniculate nucleus of the thalamus.
A minute of arc, arcminute (arcmin), arc minute, or minute arc is a unit of angular measurement equal to of one degree.
An optical instrument either processes light waves to enhance an image for viewing, or analyzes light waves (or photons) to determine one of a number of characteristic properties.
The optical transfer function (OTF) of an optical system such as a camera, microscope, human eye, or projector specifies how different spatial frequencies are handled by the system.
The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS 1; obs. code: F51 and Pan-STARRS 2 obs. code: F52) located at Haleakala Observatory, Hawaii, USA, consists of astronomical cameras, telescopes and a computing facility that is surveying the sky for moving or variable objects on a continual basis, and also producing accurate astrometry and photometry of already detected objects.
A panorama (formed from Greek πᾶν "all" + ὅραμα "sight") is any wide-angle view or representation of a physical space, whether in painting, drawing, photography, film, seismic images or a three-dimensional model.
Parvocellular cells, also called P-cells, are neurons located within the parvocellular layers of the lateral geniculate nucleus (LGN) of the thalamus.
Peripheral vision is a part of vision that occurs only on the side gaze.
Photographic plates preceded photographic film as a capture medium in photography.
The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio, of a photosensitive device or it may refer to the TMR effect of a Magnetic Tunnel Junction.
Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to on-site observation.
A retinal ganglion cell (RGC) is a type of neuron located near the inner surface (the ganglion cell layer) of the retina of the eye.
Rod cells are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor, cone cells.
The small-angle approximation is a useful simplification of the basic trigonometric functions which is approximately true in the limit where the angle approaches zero.
In geometry, a solid angle (symbol) is a measure of the amount of the field of view from some particular point that a given object covers.
A square degree (deg2) is a non-SI-compliant unit measure of solid angle.
Stereopsis (from the Greek στερεο- stereo- meaning "solid", and ὄψις opsis, "appearance, sight") is a term that is most often used to refer to the perception of depth and 3-dimensional structure obtained on the basis of visual information deriving from two eyes by individuals with normally developed binocular vision.
The UK Schmidt Telescope (UKST) is a 1.24 metre Schmidt telescope operated by the Australian Astronomical Observatory (formerly the Anglo-Australian Observatory); it is located adjacent to the 3.9 metre Anglo-Australian Telescope at Siding Spring Observatory, Australia.
UKIRT, the United Kingdom Infra-Red Telescope, is a 3.8 metre (150 inch) infrared reflecting telescope, the second largest dedicated infrared (1 to 30 micrometres) telescope in the world.
In human vision, the useful field of view (or UFOV) is the visual area over which information can be extracted at a brief glance without eye or head movements.
A video game is an electronic game that involves interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor.
Virtual reality (VR) is an interactive computer-generated experience taking place within a simulated environment, that incorporates mainly auditory and visual, but also other types of sensory feedback like haptic.
The VISTA (Visible and Infrared Survey Telescope for Astronomy) is a wide-field reflecting telescope with a 4.1 metre mirror, located at the Paranal Observatory in Chile.
The visual field is the "spatial array of visual sensations available to observation in introspectionist psychological experiments".
Visual perception is the ability to interpret the surrounding environment using light in the visible spectrum reflected by the objects in the environment.
In photography, the 35 mm equivalent focal length is a measure that indicates the angle of view of a particular combination of a camera lens and film or sensor size.