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What (who) is 4D reconstruction - definition
4D reconstruction
In computer vision and computer graphics, 4D reconstruction is the process of capturing the shape and appearance of real objects along a temporal dimension.Dou, Mingsong, et al.
4D film
3D FILM PRESENTED WITH SYNCHRONIZED PHYSICAL EFFECTS
4-D Film; 4-D film; 4D ride; 4D cinema; 4D Cinema; 4D cinemas; 4-D cinema; 4D movie
4D film is a high technology multisensory presentation system combining motion pictures with physical effects that are synchronized and occur in the theatre. Effects simulated in 4D films include motion, vibration, scent, rain, mist, bubbles, fog, smoke, wind, temperature changes, and strobe lights.
Tomographic reconstruction
![Phantom]] object, two kitty-corner squares.](https://commons.wikimedia.org/wiki/Special:FilePath/Sinogram Source - Two Squares Phantom.svg?width=200 "Phantom]] object, two kitty-corner squares.")
![ART]] based tomographic reconstruction of the sinogram of Fig.3, presented as animation over the iterative reconstruction process. The original object could be approximatively reconstructed, as the resulting image has some [[visual artifact]]s.](https://commons.wikimedia.org/wiki/Special:FilePath/Algebraic Reconstruction Technique - animated.gif?width=200 "ART]] based tomographic reconstruction of the sinogram of Fig.3, presented as animation over the iterative reconstruction process. The original object could be approximatively reconstructed, as the resulting image has some [[visual artifact]]s.")
ESTIMATE OBJECT PROPERTIES FROM A FINITE NUMBER OF PROJECTIONS
Reconstruction algorithm
Tomographic reconstruction is a type of multidimensional inverse problem where the challenge is to yield an estimate of a specific system from a finite number of projections. The mathematical basis for tomographic imaging was laid down by Johann Radon.
