Holographic 3-D Displays - Electro-holography within the Grasp of Commercialization

Reichelt, Stephan; Häussler, R.; Leister, Norbert; Fütterer, Gerald; Stolle, Hagen; Schwerdtner, Armin; Technologies, SeeReal

doi:10.5772/8650

Cited by 25 publications

(19 citation statements)

References 31 publications

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“…Holography is the reproduction of both the amplitude and the phase (wave front of the light field) of a real-world 3D scene by a diffractive pattern on a two dimensional screen such as a spatial light modulator (SLM) [4][5][6][7][8][9][10]. Holographic video displays are built using SLMs, which directs incoming light by diffraction to points in 3D space.…”

Section: Holographic 3d Display Technologiesmentioning

confidence: 99%

“…The amount of information that can be recorded (encoded) in a hologram is directly related to the spatial resolution and size of the SLM. It is represented by the space band width product, SBP, given by: SBP = (ν x* b x ) * (ν y* b y ) = � 1 2 * � * � 1 2 * � Where ν is the spatial frequency, b is the size of the SLM and δ is the pixel pitch for the modulator in the x and y directions [7]. Note, real-time holography must not only display the hologram at video rate but also compute the hologram frames in real time to enable user interaction.…”

Section: Holographic 3d Display Technologiesmentioning

confidence: 99%

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Recent developments in stereoscopic and holographic 3D display technologies

Sarma

2014

SPIE Proceedings

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Currently, there is increasing interest in the development of high performance 3D display technologies to support a variety of applications including medical imaging, scientific visualization, gaming, education, entertainment, air traffic control and remote operations in 3D environments. In this paper we will review the attributes of the various 3D display technologies including stereoscopic and holographic 3D, human factors issues of stereoscopic 3D, the challenges in realizing Holographic 3D displays and the recent progress in these technologies.Key Words: 3D displays, stereoscopic-3D displays, holographic-3D displays, 3D-display human factors, holographic video display, light-field display, computer generated hologram (CGH) INTRODUCTIONPast decade has witnessed a phenomenal progress in the development and commercialization of a variety of display technologies for displaying 2D as well as 3D image content. Examples of these developments for displaying 2D content include very large (> 100" diagonal) AM LCDs for TV, very high resolution (> 500 ppi) AM LCDs for smart phone applications, AM OLEDs for very high resolution smart phones as well as large TV applications, low-power reflective displays and flexible displays. Examples of the development for displaying 3D content include several types of stereoscopic-3D displays that have been commercialized primarily for 3D-TV and other specialized applications including defense. While the displays for 2D content (presentation) have reached good level of maturity and market adaptation, and this technology still continues to advance, stereo 3D displays have not been as widely adapted because of objectionable image artifacts limiting their performance. While 3D cinema with well controlled image content has been successful, 3D TV has had only limited success to date. When the objectionable image artifacts and performance limitations in current 3D displays are eliminated, they are expected to be widely adopted in current applications (such as for 3D TV) as well as enable a variety of new applications in defense as well as civilian uses. In this paper our focus will be on 3D displays. Acquisition of 3D visual information of a real-life scene and creating an exact scaled optical duplicate of it at a remote site instantaneously, or at a later time, are ultimate goals in visual communications. In addition to defense applications, civilian applications of 3D displays include medical imaging, computer aided design, scientific visualization, education, gaming, and entertainment including 3D TV, air traffic control and remote operations in 3D environments. For realism, a 3D display should provide high spatial resolution and depth perception with full depth cues including binocular disparity, motion parallax, ocular accommodation, occlusion etc. The 3D display systems are usually based on stereoscopic and auto-stereoscopic displays. Stereoscopic displays exploit the ability of the human brain to combine different perspectives of the object as an integrated 3D visual scene. The 3D disp...

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Section: Holographic 3d Display Technologiesmentioning

confidence: 99%

Section: Holographic 3d Display Technologiesmentioning

confidence: 99%

Recent developments in stereoscopic and holographic 3D display technologies

Sarma

2014

SPIE Proceedings

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“…(6), when a viewing window is centered at a coordinate (x vc , y vc ) in the pupil plane. The wave field leaving from the SLM plane is calculated by multiplying D shift (x s , y s ) by C(x s , y s ; x vc , y vc ).…”

Section: Diffraction Model With Converging Optical Systemmentioning

confidence: 99%

“…This is because the current state of technology does not enable the manufacturing of a display panel with a sub-micro-pixel pitch. Several alternative approaches exist to address the limited viewing zone angle of an existing SLM using scanning multiplexing [1], [2], tiling multiplexing [3]- [5], and a viewing window [6], [7].…”

Section: Introductionmentioning

confidence: 99%

“…Ray tracing is very useful in measuring wave aberrations of an optical system with a large aperture because it can numerically calculate the Zernike coefficient from a given design specification of an optical system, even if a wave aberration measurement is not established. The obtained wave aberrations can be transformed into a compensation phase field, which is applied to a viewing-window holographic display [6], [7].…”

Section: Introductionmentioning

confidence: 99%

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Distortion Compensation of Reconstructed Hologram Image in Digital Holographic Display Based on Viewing Window

Park¹,

Kim²,

Choo³

et al. 2017

ETRI Journal

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A holographic display based on a viewing window enables the converging of a reconstruction wave into a viewing window by means of an optical system. Accordingly, a user can observe a reconstructed hologram image, even with a small diffraction angle. It is very difficult to manufacture an optical system with no aberrations; thus, it is inevitable that a certain amount of wave aberrations will exist. A viewing-window-based holographic display, therefore, always includes distortions in an image reconstructed from a hologram pattern. Compensating the distortions of a reconstructed image is a very important technical issue because it can dramatically improve the performance when reconstructing a digital three-dimensional content image from a hologram pattern. We therefore propose a method for suppressing image distortion by measuring and compensating the wave aberration calculated from a Zernike polynomial, which can represent arbitrary wave aberrations. Through our experimental configuration using only numerical calculations, our proposed method decreased the reconstructed image distortion by more than 28%.

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Rendering, Adaptation and 3D Displays

2013

3dtv

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Holographic 3-D Displays - Electro-holography within the Grasp of Commercialization

Cited by 25 publications

References 31 publications

Recent developments in stereoscopic and holographic 3D display technologies

Recent developments in stereoscopic and holographic 3D display technologies

Distortion Compensation of Reconstructed Hologram Image in Digital Holographic Display Based on Viewing Window

Rendering, Adaptation and 3D Displays

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