Design, development, and implementation of a low-cost full-parallax holoprinter

Sánchez, Alejandro; Prieto, Daniel Velásquez

doi:10.1117/12.2289905

Cited by 2 publications

(5 citation statements)

References 7 publications

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“…Autodesk 3ds® ha sido utilizado en la literatura para la captura de las imágenes perspectivas , ( , ) utilizando una cámara virtual bajo la configuración de cámara simple [7]. Por otro lado, diferentes empresas e investigadores utilizan librerías libres de OpenGL para el desarrollo de sus propias aplicaciones [24,29,34]. Otro de los softwares que ha sido aplicado y que presenta grandes ventajas para el desarrollo de aplicaciones dirigidas a las holoimpresoras es Blender™ [22,29].…”

Section: Implementación De La Holoimpresora 3a Implementación Compuunclassified

“…El método de cámara truncada es un caso que se deriva del método de apertura [15,24,34]. Este utiliza una cámara virtual que se desplaza por cada una de las posiciones correspondientes de los hogels.…”

Section: Implementación De La Holoimpresora 3a Implementación Compuunclassified

“…Y de esta forma, el EH era compuesto por un arreglo de hogels que eran registrados punto a punto sobre el material fotosensible. Yamaguchi llamó a su sistema impresora holográfica 3D, en la literatura este sistema es conocido como holoimpresora [22][23][24]. Basados en los trabajos de Yamaguchi y de los avances llevados a cabo por el grupo de investigación liderado por Benton [19], Zebra Imaging Inc desarrolló una holoimpresora y diferentes métodos computacionales que permitieron aplicar exitosamente los EHs a la industria militar, médica y en arquitectura [25][26][27].…”

Section: Introductionunclassified

“…Los resultados logrados por estos grupos de investigación y empresas han probado que los EHs elaborados por las holoimpresoras de escritura directa presentan posibilidades de imágenes 3D nunca antes logrado. En la actualidad, diferentes métodos computacionales [9,24,28,29], configuraciones ópticas [29,30], materiales y aplicaciones [7,9] son objetos de estudio y desarrollo para la producción de EHs de paralaje completo.…”

Section: Introductionunclassified

“…De esta forma, la elaboración de una holoimpresora presenta grandes requerimientos técnicos y tecnológicos en los campos de la computación, el diseño óptico y en implementaciones mecánicas y de control. Estos sistemas deben ser investigados y desarrollados de forma integral para producir EHs de paralaje completo con campos visuales (FOV) grandes, imágenes 3D libres de distorsiones y con el mínimo tiempo de impresión [22][23][24][25][26][27].…”

Section: Introductionunclassified

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Holoprinter: study and development of a direct write synthetic full parallax holographic system

Sánchez¹,

Velásquez-Prieto²

2018

Opt. Pura Apl.

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Holoprinters based on holographic stereograms (HS) have been developed to synthesize holograms by using 2D images with perspective information of 3D objects. The objects can be real or computer generated. HS has been applied to different fields such as engineering, medicine and military because the high visual impact of the tridimensional and multi-view images it presents. To implement a Holoprinter requires development of three components: i) 2D images generation, ii) optical system design for HS recording and iii) mechanical and control implementation. Therefore, we design and develop each of the components, which integrated compose a holoprinter to synthesize full parallax HS. This paper studies basis for production of this kind of holograms and describes the computational and opto-mechanical design and implementation that we have made. Experimental HS were obtained to validate the system.

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Section: Implementación De La Holoimpresora 3a Implementación Compuunclassified

Section: Introductionunclassified

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Holoprinter: study and development of a direct write synthetic full parallax holographic system

Sánchez¹,

Velásquez-Prieto²

2018

Opt. Pura Apl.

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Simplified digital content generation based on an inverse-directed propagation algorithm for holographic stereogram printing

et al. 2021

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Holographic stereogram (HS) printing requires extensive memory capacity and long computation time during perspective acquisition and implementation of the pixel re-arrangement algorithm. Hogels contain very weak depth information of the object. We propose a HS printing system that uses simplified digital content generation based on the inverse-directed propagation (IDP) algorithm for hogel generation. Specifically, the IDP algorithm generates an array of hogels using a simple process that acquires the full three-dimensional (3D) information of the object, including parallax, depth, color, and shading, via a computer-generated integral imaging technique. This technique requires a short computation time and is capable of accounting for occlusion and accommodation effects of the object points via the IDP algorithm. Parallel computing is utilized to produce a high-resolution hologram based on the properties of independent hogels. To demonstrate the proposed approach, optical experiments are conducted in which the natural 3D visualizations of real and virtual objects are printed on holographic material. Experimental results demonstrate the simplified computation involved in content generation using the proposed IDP-based HS printing system and the improved image quality of the holograms.

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Design, development, and implementation of a low-cost full-parallax holoprinter

Cited by 2 publications

References 7 publications

Holoprinter: study and development of a direct write synthetic full parallax holographic system

Holoprinter: study and development of a direct write synthetic full parallax holographic system

Simplified digital content generation based on an inverse-directed propagation algorithm for holographic stereogram printing

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