Ms. Marie Shoda Profile

Marie Shoda

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SPIE Journal Paper | 8 May 2018

Light-field camera and display as information retrieval systems for three-dimensional images

Toru Iwane, Marie Shoda

OE, Vol. 57, Issue 06, 061616, (May 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.6.061616

KEYWORDS: 3D image processing, Cameras, 3D displays, Sensors, Imaging systems, 3D image reconstruction, 3D volumetric displays, Light, Data acquisition, Image compression

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Light-field optics is used in light-field cameras to alter the focus condition of an image after it is obtained. This unique function implies that information captured with a light-field camera is not a “picture”; rather, it is a real object image. Thus, a two-dimensional (2-D) image of any focus condition can be generated from the acquired data. An explanation is provided on how a light-field camera records or encodes a three-dimensional (3-D) scene onto a 2-D plane as light-field data, and how the data are decoded back into a 3-D image with a light-field display. Other unique applications based on light-field optics are discussed. Unlike conventional optical systems, light-field optics does not require optical conjugation between the display plane and image plane. Thus, light-field optics can provide an effective means of advancement for conventional optical instruments. To demonstrate the potential applications of light-field optics, we developed a light-field camera and display.

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