Browse Definitions :
Definition

field of view (FOV)

Contributor(s): Matthew Haughn

Field of view (FOV) is the open observable area a person can see through his or her eyes or via an optical device. In the case of optical devices and sensors, FOV describes the angle through which the devices can pick up electromagnetic radiation.

FOV allows for coverage of an area rather than a single focused point. In virtual reality (VR), a large FOV is essential to getting an immersive, life-like experience. Wider FOV also provides better sensor coverage or accessibility for many other optical devices.

Our eyes are the natural start of perception of FOV. In human vision, the field of view is composed of two monocular FOVs which our brains stitch together to form one binocular FOV. Individually, our eyes have a horizontal FOV of about 135 degrees and a vertical FOV of just over 180 degrees. When the monocular fields of view are stitched together, our binocular FOV gives us around 114 degrees of view horizontally and is necessary for depth perception. Our peripheral vision makes up the remaining 60–70 degrees and has only monocular vision because only one eye can see those sections of the visual field. These measurements are based on the FOV during steady fixation of the eyes.

In addition to monocular and binocular differences in our vision, humans also have different fields of view for different colors. Color saturation and perception is concentrated in the center of our FOV and becomes more monochromatic on the edges or periphery of our vision.

In VR gaming, a simulated environment experienced through the character’s first person view (FPV) is much more immersive with a larger field of view. The limitations of FOV in VR headsets stem from the need to balance the need for lightweight, thinner headsets for better ergonomics against the need for thicker, heavier lenses that require less focal distance to increase FOV. Overly large lenses may also introduce artifacts like chromatic aberration and color distortion.

Drone photography can capture large swaths of landscape better with a larger FOV. Extra visibility can also make it easier to see obstacles in FPV control of drones or when using smartphones or VR headsets.

This was last updated in May 2017

Continue Reading About field of view (FOV)

Join the conversation

2 comments

Send me notifications when other members comment.

Please create a username to comment.

Do you think that VR headset technologies are advanced enough for widespread adoption?
Cancel
Why should they be advanced enough? The concept itself is enough of an incentive to make people want to buy them.
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • privacy compliance

    Privacy compliance is a company's accordance with established personal information protection guidelines, specifications or ...

SearchSecurity

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

  • crisis management plan (CMP)

    A crisis management plan (CMP) outlines how to respond to a critical situation that would negatively affect an organization's ...

  • disaster recovery (DR) test

    A disaster recovery test (DR test) is the examination of each step in a disaster recovery plan as outlined in an organization's ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

SearchStorage

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • megabytes per second (MBps)

    Megabytes per second (MBps) is a unit of measurement for data transfer speed to and from a computer storage device.

  • zettabyte

    A zettabyte is a unit of measurement used by technology professionals and the general public to describe a computer or other ...

Close