Holographic 3D display of overlapped pattern by pick-upped image using integral imaging technique

Abstract

ABSTRACT In this paper, we propose the holographic reconstruction by overlapped pattern from the images that captured by Integral Image (II) method with some image proces sing. An elemental image array of 3D ob ject is pick-upped by II method and modified to a sub-image array. Then each elemental hologram pattern is generated by each sub-image with computational technique then overlapped like uniform ratio. Finally, the overlapped hologram pattern is reconstructed using the reference wave which is used to the hologram generation process. In this simulation, the characters of ‘KW’ with different depth are used as 3D objects and pick-upped and processed using II method. Then processed image is successfully reconstructed using hologram technique Keywords : Computer generated holography (CGH), Integral imaging (II), 3D Display 1. INTRODUCTION It is unquestionable that the ultimate goal of many developers of three-dimensional (3D) imaging and display systems is to devise a scheme to deliver 3D images that are visually indistinguishable from the real objects. This achievement would eventually provide users with many opportunities to view and interact directly with 3D data in an intuitive manner in many applications. So far, many kinds of 3D imaging and display methods have been developed [1]. Among them, the holographic method is particularly regarded as one of the most attractive approaches for creating the most authentic illusion of observing volumetric objects. It is because the holographic technology can supply high-quality images and accurate depth cues viewed by human eyes without any special observation devices [2]. However, recording holograms of 3D real objects in the optical holographic system demands wave interference between the two intense laser beams with a high degree of coherence between them in the dark room. The optical system must be kept to be very stable since a very slight movement can destroy the interference fringes, in which both intensity and phase information of the objects are