# Recording a Hologram Transmitted over a Communication Channel on One Sideband
## 4 Conclusions  
Other representations of the 3D holographic signal that are widely developed today, such as the point cloud technology mentioned above [6; 7], polygonal [8; 9] and voxel [10; 11] representations of three-dimensional images, have extensive bibliography, which cannot be reflected in our article. We can only address review papers, for example [27; 28]. In Table 1, we presented some of, we believe, the key stages of our development based on the creation of a mask using structured light, and the parallel development of our foreign colleagues based on the creation of a mask (surface map) using a time-of-flight (ToF) camera. We believe that the low resolution in the depth of the recorded scene is inherent in the ToF technology, since the operation of the electronics serving it must exceed 300 GHz per pixel for the high-quality registration of a 3D image of a human portrait. At the same time, the technology we are developing for using structured light does not have such strict limitations, and is much better adapted for transmitting 3D holographic images over distance. This also applies to portrait images in the TV standard of spatial resolution, with continuous parallax of the image depth, as well as with the TV frame rate. In the present paper, the data from the holographic 3D object were actually transmitted by us through a Wi-Fi channel in the form of two frames (a mask and a texture, as shown \begin{table}
\begin{tabular}{c c c} \hline \hline  & **Main Stages** & **Title of Main Publication** & **Publication of the Basic Content** \\ \hline \multirow{2}{*}{1.} & \multirow{2}{*}{Mapping of the patient’s body surface with structured light.} & [PERSON]. [PERSON] \& Co. \\  & & Method for detecting postural disbalance (Computer \\  & & optical topography). \\ \hline \multirow{2}{*}{2.} & \multirow{2}{*}{The problem is formulated of model 3D holographic signals for the purpose of their dynamic transmission.} & Shoydin S. A. \& Co. \\  & & & Modeling of diffraction on volumetric bodies in the \\  & & MatLab software environment. \\ \hline \multirow{3}{*}{3.} & \multirow{3}{*}{A method to record 3D holographic information suitable for transmission along conventional radio channels is chosen.} & [PERSON]. [PERSON] \\  & & & Method of holographic recording remote formation. \\ \hline \multirow{4}{*}{4.} & \multirow{3}{*}{A holographic system is proposed for registering 3D information by another method, using a IoT camera with surface sensing.} & [PERSON]. \& Co. \\  & & & Real-time three-dimensional video reconstruction of real \\  & & create 3D images with a frame frequency of 20 Hz and low \\  & & resolution in the depth of the object. \\ \hline \multirow{4}{*}{5.} & \multirow{3}{*}{The possibility to transmit 3D holographic information over a conventional communication channel and its main features} & Shoydin S. A. \& Co. \\  & & & Synthesis of holograms received by a \\  & & & communication channel. \\ \hline \multirow{2}{*}{6.} & \multirow{2}{*}{The transmission of a 3D holographic signal of Full HD standard with TV frame rate is performed experimentally.} & [PERSON]. L. \& Co. \\  & & & Transmission of holographic information on a \\ \hline \multirow{2}{*}{7.} & \multirow{2}{*}{A hologram has been experimentally recorded from 3D information transmitted over a conventional radio channel.} & [PERSON]. [PERSON] \& Co. \\  & & Recording a hologram transmitted over a communication channel on one sideband. \\ \hline \hline \end{tabular}
\end{table} 
Table 1: The main stages that we relied on. Figure 11: Measurement of the parallax of the hologram-reconstructed image by porting it out into the measurement space; the tips of the needles are highlighted in red.