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Non-glasses Stereoscopic 3D Floating Hologram System using Polarization Technique
Pyeongho Choi,최윤희,Misoo Park,권순철,이승현 한국인터넷방송통신학회 2019 Journal of Advanced Smart Convergence Vol.8 No.1
The image projected onto the screen of the floating hologram is no more than a two-dimensional image. Although it creates an illusion that an object appears to float in space as it moves around while showing its different parts. This paper has proposed a novel method of floating 3D hologram display to view stereoscopic three-dimensional images without putting on glasses. The system is comprised of a sharkstooth scrim screen, projector, polarizing filter for the projector, and a polarizing film to block the image projected from the sham screen. As part of the polarization characteristics, the background image and the front object have completely been separated from each other with the stereoscopic 3D effect successfully implemented by the binocular disparity caused by the distance between the two screens.
Non-glasses Stereoscopic 3D Floating Hologram System using Polarization Technique
Choi, Pyeongho,Choi, Yoonhee,Park, Misoo,Kwon, Soonchul,Lee, Seunghyun The Institute of Internet 2019 Journal of Advanced Smart Convergence Vol.8 No.1
The image projected onto the screen of the floating hologram is no more than a two-dimensional image. Although it creates an illusion that an object appears to float in space as it moves around while showing its different parts. This paper has proposed a novel method of floating 3D hologram display to view stereoscopic three-dimensional images without putting on glasses. The system is comprised of a sharkstooth scrim screen, projector, polarizing filter for the projector, and a polarizing film to block the image projected from the sham screen. As part of the polarization characteristics, the background image and the front object have completely been separated from each other with the stereoscopic 3D effect successfully implemented by the binocular disparity caused by the distance between the two screens.
A Study on the Performance Comparison of 3D File Formats on the Web
이건희,Pyeongho Choi,남정환,Hwa-seop Han,이승현,권순철 한국인터넷방송통신학회 2019 Journal of Advanced Smart Convergence Vol.8 No.1
3D file formats typically include OBJ (Wavefront file format), STL (STereoLithography), and FBX (Filmbox). Each format has limitations depending on its configuration and usage, and supported formats are different depending on the software application. glTF helps uniform integration of 3D file formats and allows for more efficient transmission of large 3D geometry files by organizing them in a binary format. This paper presents explanation on OBJ, FBX, and STL which are major examples of existing 3D file formats. It also explains the concept and characteristics of glTF and compares its performance with other 3D file formats on the web. The loading time and packets of each 3D file format are measured according to the web browser environment by means of Google Chrome, Firefox and Microsoft Edge. Experimental results show that glTF is the most efficient and that it exhibits the best performance. As to STL, relatively excessive traffic was observed. This study is expected to contribute to reducing rendering time on the web as 3D file formats are used.