Definition

light field camera

Part of the Multimedia and graphics glossary:

A light field camera (also called a plenoptic camera) is an imaging device that creates pictures that can be refocused after they are taken. 

The light field is the totality of photons traveling in all directions throughout all points in space in a given area. Light field photography accesses all the information available about light rays interacting with objects in a scene. In optics, the plenoptic function provides a means of identifying a 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. A company called Lytro released the first commercially available light field camera in early 2012. 

The Lytro camera's light sensor consists of a conventional digital camera CMOS (complementary metal-oxide semiconductor) working in conjunction with a micro-lens array containing thousands of tiny lenses to capture all the light field data. The miniature lenses each divide CMOS pixels into multiple areas to accommodate views of an object from various angles. The light sensor records information about the angle of light, in addition to the information about color, intensity and position recorded by conventional cameras. The light field data is stored along with the image data and software, either on the camera or online, allows the images to be refocused to display relevant information for the area selected. 

Robert Scoble checks out the Lytro camera:

This was last updated in June 2012
Contributor(s): Ivy Wigmore
Posted by: Margaret Rouse

Related Terms

Definitions

  • Video as a Service (VaaS)

    - Video as a Service (VaaS) is a delivery model where video conferencing capabilities are outsourced to a managed service provider and delivered over an IP network. (SearchUnifiedCommunications.com)

  • Slingshot

    - Slingshot is Facebook's photograph sharing smartphone application, developed to compete with services like Snapchat and Instagram. Slingshot is available for iOS and Android. The app is modeled on... (WhatIs.com)

  • raster graphics

    - Raster graphics are digital images created or captured (for example, by scanning in a photo) as a set of samples of a given space. (WhatIs.com)

Glossaries

  • Multimedia and graphics

    - Terms related to multimedia, including graphics, animation and video definitions and words and phrases about images and sound.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question About light field cameraPowered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.