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What is Hologram

Handbook of Research on Human-Computer Interfaces, Developments, and Applications
A photographic recording of a light field, rather than of an image formed by a lens, and it is used to display a fully three-dimensional image of the holographed subject, which is seen without the aid of any intermediate optics.
Published in Chapter:
PRHOLO: 360º Interactive Public Relations
João Rodrigues (University of Algarve, Portugal), Ricardo Alves (University of Algarve, Portugal), Luís Sousa (University of Algarve, Portugal), Aldric Negrier (University of Algarve, Portugal), Jânio Monteiro (University of Algarve, Portugal), Pedro Cardoso (University of Algarve, Portugal), Paulo Felisberto (University of Algarve, Portugal), Mauro Figueiredo (University of Algarve, Portugal), Bruno Mendes da Silva (University of Algarve, Portugal), Roberto Lam (University of Algarve, Portugal), Jaime Carvalho Martins (University of Algarve, Portugal), Miguel Gomes (SPIC - Creative Solutions, Portugal), and Paulo Bica (SPIC - Creative Solutions, Portugal)
DOI: 10.4018/978-1-5225-0435-1.ch007
Abstract
In the globalized world, possessing good products may not be enough to reach potential clients unless creative marketing strategies are well delineated. In this context, public relations are also important when it comes to capture the client's attention, making the first contact between the clients and the company's products, while being persuasive enough to make them confident that the company has the right products to fit their needs. Three virtual public relations installations were purposed in this chapter, combining technology with a human like public relations ability, capable of interacting with potential clients located in front of the installation, at angles of up to 57º (degrees), 180º and 360º, respectively. From one to several Microsoft Kinects were used to develop the three interaction models, which allows tracking and recognition of users' gestures and positions (heat map), sound sources, voice commands and face and body extraction of the user interacting with the installation.
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More Results
Thinking Art in the Technological World: An Approach to Digital Media Art Creation
Unlike the photograph that only allows registering different intensities of light coming from the scene photographed, the holograms also record the phase of the luminous radiation coming from the object. The construction of a hologram requires a laser light source to illuminate the object to be registered or other image projection techniques through screens of liquid crystals or matrices of micro-mirrors with very small dimensions.
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Multimedia Experiences for Cultural Heritage
A photographic recording used to display a three-dimensional image of an object.
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Lookable User Interfaces and 3D
Is a technique which enables three-dimensional images to be made. It involves the use of a laser, interference, diffraction of light intensity recording and suitable illumination of the recording.
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Emerging Technologies at the Events
A photographic technique that records the light scattered from an object, and then presents it in a way that appears three-dimensional.
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The Role of Technology in Audio Text Comprehension for English as a Second Language
An image that cheats the brain’s visual perception in order to recreate three dimensional objects in our own dimension.
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Higher Education Teaching and Learning With Augmented Reality
An augmented reality 3D hologram object is placed into the real learning environment. It is formed using light projection on a transparent display to interact with it.
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