This paper proposes a particle volume reconstruction directly from an in-line hologram using
a deep neural network (DNN). Digital holographic volume reconstruction conventionally …

A wide variety of devices is being installed in various environments such as homes, factories,
and streets with the rapid expansion of the Internet of Things (IoT). To properly and …

Since virtual reality technology can easily realize a particular environment, it has been applied
to various training. This technology is also expected in education such as those dealing …

A complex amplitude hologram can reconstruct perfect light waves. However, as there are
no spatial light modulators that are able to display complex amplitudes, we need to use …

The number of physical resources, such as embedded sensors, actuators, and processors,
that are connected to the Internet is increasing, leading to the formation of the Internet of …

Diffraction calculations, such as Fresnel diffraction and the angular spectrum method, are
essential in optical simulations. These methods are numerically calculated by discrete Fourier …

Using threads and a projector, a directional volumetric display capable of moving images
and full-color representation was developed in our previous work. However, the horizontal …

Open connectivity is required to expand the IoT services, but such environments are prone
to the risk of information leakage and illegal operation by spoofing. In this paper, we present …

In a previous study, we have developed a directional volumetric display that handles
multiple directional images. To realize a multilingual digital signage system, we implement a …

Recently, IoT technologies have been progressed, and many sensors and actuators are
connected to networks. Previously, IoT services were developed by vertical integration style. But …