Publication

Digital holographic imaging apparatus has container that contains medium in which sample is located

Christian Depeursinge, Etienne Cuche
2003
Patents

Abstract

The present invention is related to a method for performing digital holographic imaging (DHI), said DHI being characterized by the fact that images of a sample (1) are obtained by applying numerical means to reconstruct holograms of the sample. In the method of the invention, the sample is in a medium (3) with controlled properties (5) that influence the behaviour of the sample, and/or that influence the process of hologram formation. The information content of one hologram, or of a plurality of holograms, recorded with the sample in one medium, or in a plurality of medium, is used to reconstruct one image of the sample, or a plurality of images of the sample, that describe quantitatively one property of the sample, or a plurality of properties of the sample. The present invention is also related to an apparatus with which to perform said method.

Official source

https://infoscience.epfl.ch/entities/publication/2eaf4bd6-6280-41b7-890f-907145ceeeaa

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Christian Depeursinge, Etienne Cuche
2003
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/2eaf4bd6-6280-41b7-890f-907145ceeeaa

About this result

Related concepts (5)

Holography

Holography is a technique that enables a wavefront to be recorded and later re-constructed. Holography is best known as a method of generating real , but it also has a wide range of other applications. In principle, it is possible to make a hologram for any type of wave. A hologram is made by superimposing a second wavefront (normally called the reference beam) on the wavefront of interest, thereby generating an interference pattern which is recorded on a physical medium.

Holographic display

A holographic display is a type of 3D display that utilizes light diffraction to display a three-dimensional image to the viewer. Holographic displays are distinguished from other forms of 3D displays in that they do not require the viewer to wear any special glasses or use external equipment to be able to see the image, and do not cause the vergence-accommodation conflict. Some commercially available 3D displays are advertised as being holographic, but are actually multiscopic.

Stereoscopy

Stereoscopy (also called stereoscopics, or stereo imaging) is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision. The word stereoscopy derives . Any stereoscopic image is called a stereogram. Originally, stereogram referred to a pair of stereo images which could be viewed using a stereoscope. Most stereoscopic methods present a pair of two-dimensional images to the viewer. The left image is presented to the left eye and the right image is presented to the right eye.