Browse Definitions :
Definition

light field

Contributor(s): Ivy Wigmore

The light field is the totality of photons (light particles) traveling in all directions throughout all points in space in a given area. Specifics within the light field can be determined according to the plenoptic function, which can identify any given point where light arrives in a scene through five dimensions (5D): three to determine the position of the point and two more to identify the angle by which the light arrives at that point.

The concept of the light field has had a long development. In the fifteenth century, in his manuscripts on painting, Leonardo da Vinci wrote about the behaviour of photons -- which he called “radiant pyramids” --within a given scene. In an 1846 presentation, Michael Faraday (for whom both the faraday and the farad are named) suggested that light should be considered to manifest a field, similarly to magnetic fields. The first person to use the term light field was Alexander Gershun, in a 1936 paper on the properties of light within three-dimensional (3D) space.

Various researchers have studied the potential of light field photography over the years. Lytro released the first commercial light field camera in 2012. Because a light field camera captures all the information required to recreate the view from any visible perspective, an image taken with it can be refocused after the picture is taken.

This was last updated in June 2012

Continue Reading About light field

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

SearchSecurity

  • time-based one-time password (TOTP)

    A time-based one-time password (TOTP) is a temporary code, generated by an algorithm, for use in authenticating access to ...

  • Security Operations Center (SOC)

    A security operations center (SOC) is a command center facility for a team of IT professionals with expertise in information ...

  • incident response team

    An incident response team is a group of IT professionals in charge of preparing for and reacting to any type of organizational ...

SearchHealthIT

SearchDisasterRecovery

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

  • business continuity software

    Business continuity software is an application or suite designed to make business continuity planning/business continuity ...

SearchStorage

  • storage class memory (SCM)

    Storage class memory (SCM) is a type of NAND flash that includes a power source to ensure that data won't be lost due to a system...

  • Hadoop as a service (HaaS)

    Hadoop as a service (HaaS), also known as Hadoop in the cloud, is a big data analytics framework that stores and analyzes data in...

  • blockchain storage

    Blockchain storage is a way of saving data in a decentralized network which utilizes the unused hard disk space of users across ...

Close