This research aimed to investigate the use of fan type hologram, that is considered be a new technology, replace conventional billboard. Billboard usage consumes plenty energy and not flexible. Fan hologram expected reduce electricity becomes more attractive general society. Prototype system build with solar cell as source energy, battery storage. The from sun also measured confirmed supply eno...

Purpose of this study is to research the floating type cylindrical hologram that can also be embodied in outdoor. This identifies and its type, researches applied form design realization based on type. For manufacturing miniature hologram, mirror installed cylinder embody new out existing hologram. cylinder, polarizing filter used minimize diffracted reflection, air intake device, fan problem h...

The great development witnessed by our current age has led to the emergence of many diverse modern technologies, one of these advanced technologies is Hologram technology and Augmented reality technology, These two technologies are somewhat similar to somewhat, as it can be said that they perform almost the same purpose, and at the same time, Hologram technology differs from augmented reality i...

We report a novel and fast method for converting a digital, complex Fresnel hologram into a phase-only hologram. Briefly, the pixels in the complex hologram are scanned sequentially in a row by row manner. The odd and even rows are scanned from opposite directions, constituting to a bidirectional error diffusion process. The magnitude of each visited pixel is forced to be a constant value, whil...

This paper proposes a method to manipulate digital hologram contents by manipulating and/or synthesizing the depth information. To synthesize digital holograms themselves in order to create new digital hologram contents. This paper uses both the depth information obtained by converting the disparity information by using a stereo matching method and that obtained by taking pictures with a depth ...

We propose an algorithm that converts a full-parallax hologram to a horizontal-parallax-only (HPO) hologram for 3D display. We first record a full-parallax hologram of an object. Subsequently, we filter the hologram with a Gaussian low-pass filter and a fringe-matched filter along the vertical direction. The final filtered output becomes an HPO hologram. To the best of our knowledge, this is th...

ABSTRUCT Since a general flat hologram has a limited viewable area, we usually cannot see the other side of a reconstructed object. Therefore, we proposed the computer-generated cylindrical hologram as 360 deg viewable display. In this paper, we realize the more entertainment-type computer-generated cylindrical hologram. Since the previous holograms can be displayed is only dead object and it i...

We propose a three-dimensional (3D) holographic display by converting an optically recorded complex full-parallax (FP) hologram to an off-axis horizontal-parallax-only (HPO) hologram. First, we record the complex FP hologram of an object using optical scanning holography. We then convert the complex FP hologram to an off-axis HPO hologram through fringe-matched Gaussian low-pass filtering and w...

We present a theoretical framework for recording and reconstructing incoherent correlation holograms of real-existing three-dimensional scenes observed from multiple viewpoints. This framework is demonstrated by generating and reconstructing a modified Fresnel hologram as well as a new correlation hologram called a protected correlation hologram. The reconstructed scene obtained from the protec...

In this paper we present a method for reading a watermark from a dual layer hologram image with a digital camera. Here the base of the hologram out of which the hologram was designed is a binary image. The hologram obtained is placed on a planar surface and an image is captured from the hologram by setting up a light source and a digital camera on appropriate distances and angles relative to th...