Lenticular Imaging - Weissman, Yitzhak
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  • Gebundenes Buch

This book treats the visual and the optical aspects of lenticular imaging comprehensively. The theoretical discussion is supplemented by numerous examples and figures which explain and illustrate the underlying principles, to make the book accessible and useful for scholars, practitioners, and graphical artists. However, this book is not a practical guide for making lenticular pictures. The most striking capability of lenticular pictures is the display of depth. 3D lenticular pictures can be enjoyed without any visual aids, and are viewable from within a comfortably large volume. Within this…mehr

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Produktbeschreibung
This book treats the visual and the optical aspects of lenticular imaging comprehensively. The theoretical discussion is supplemented by numerous examples and figures which explain and illustrate the underlying principles, to make the book accessible and useful for scholars, practitioners, and graphical artists. However, this book is not a practical guide for making lenticular pictures. The most striking capability of lenticular pictures is the display of depth. 3D lenticular pictures can be enjoyed without any visual aids, and are viewable from within a comfortably large volume. Within this volume, the picture displays change of perspective according to the viewing angle and shows the object with the correct geometry. With proper design, the changes in perspective can be smooth and continuous. These characteristics create a compelling virtual reality illusion, like the effect of holograms. The tradeoff between the amount of displayed depth and the visual quality is established and discussed. The overall resolution of the picture determines this compromise. Basic mechanisms affecting the overall resolution are optical aberrations and print characteristics. For digital print, it is suggested that if lenticular sheets are adjusted to fit the printer characteristics, the overall resolution may be significantly improved. The unique optical properties of lenticules and lenticular sheets are crucial for the understanding of lenticular imaging, and, as such, they receive much attention in the book. The optical mechanism of a lenticular picture is explained using simplified, yet accurate models based on classical optical imaging theory. The more advanced subjects of optical resolution and distortions are treated numerically, using ray-tracing methods. The results of this study are presented here for the first time and are used to explain the visual features of lenticular pictures. They are also important for future research and development. Numerous other topics are essential for understanding and using lenticular imaging. These topics include calibration of lenticular sheets, content preparation for 3D pictures, and viewing space design. All these issues are treated and presented in detail, including many practical examples. Electronic display systems underwent rapid evolution in recent fifty years. From early bulky, monochrome, and distorted CRT displays, modern flat-panel displays feature vibrant color and perfect geometry. The resolution, contrast, and brightness reached the highest standards of market demands. Perhaps the last challenge remaining to be conquered by display engineers is the creation of a high-quality electronic 3D display that is viewable without any aids, like a lenticular picture. This challenge attracted much attention, but, despite vast efforts, it is still beyond reach. One of the most popular approaches to making an electronic 3D display is based on lenticular imaging. A separate chapter is devoted to the discussion of this technology. Although electronic and printed displays differ profoundly, the methodology of printed pictures can be used for the study and analysis of electronic lenticular displays, although with several modifications. The book outlines this application, to allow future study and development of such displays benefit from the research presented in this book.
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Autorenporträt
Dr. Yitzhak Weissman received his Ph.D. degree from Tel Aviv University in 1981. Since then, his career interleaved scientific and applied research. During his academic activity, Dr. Weissman published over 30 scientific papers and two books: "Optical Network Theory" in 1991, and "Lenticular Imaging" in 2018. The subjects of his publications include solid-state physics, quantum mechanics, optical fibers, infra-red technology, optical noise, optical engineering, and heat transfer. Dr. Weissman spent two sabbatical periods in the US: in the UC Berkeley Chemistry Department in 1981 as a post-doctoral fellow, and in the University of Utah Electrical Engineering Department in 1991 as a visiting Professor. Dr. Weissman's passion for innovation and entrepreneurship has led him to participate in numerous start-up projects, which included the development of fiber-optic sensors, infra-red spectroscopy instrumentation, simulator displays, optically efficient polarizers for projection 3D displays, diamond color grading, and lenticular print. Dr. Weissman's involvement in 3D visualization started with stereo photography. His lenticular printing service of stereo photographs became very popular among stereo photographers around the world. The work on lenticular stereo pictures led him to the study of 3D lenticular imaging, which is documented in his book "Lenticular Imaging." The work on this subject shifted Dr. Weissman's attention to the more sophisticated 3D photography, and to a branch of 3D digital art called "Virtual Sculpture." Nowadays, he is an active artist in these fields. Dr. Weissman was born in Poland in 1949. In 1957 he immigrated with his family to Israel. He is married, has two children, and lives in Herzliya, Israel.