Topological Calculus: Between Algebraic Topology and Electromagnetic Fields

Arrighetti, Walter; Gerosa, Gino

doi:10.1142/9789812709394_0008

Cited by 3 publications

(2 citation statements)

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“…Expansion of the CommonLUT format is also one of the author's main contributions to ACES, particularly on color-metadata extensions and on interpolation algorithms using advanced Algebraic Topology techniques based on simplicial geometry, cfr. [20,76,77]. As of 2017, CLF has received mild support by a few commercial color-correctors (e.g.…”

Section: Commonlut Formatmentioning

confidence: 99%

The Academy Color Encoding System (ACES): A Professional Color-Management Framework for Production, Post-Production and Archival of Still and Motion Pictures

Arrighetti

2017

J. Imaging

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Abstract:The Academy of Motion Picture Arts and Sciences has been pivotal in the inception, design and later adoption of a vendor-agnostic and open framework for color management, the Academy Color Encoding System (ACES), targeting theatrical, TV and animation features, but also still-photography and image preservation at large. For this reason, the Academy gathered an interdisciplinary group of scientists, technologists, and creatives, to contribute to it so that it is scientifically sound and technically advantageous in solving practical and interoperability problems in the current film production, postproduction and visual-effects (VFX) ecosystem-all while preserving and future-proofing the cinematographers' and artists' creative intent as its main objective. In this paper, a review of ACES' technical specifications is provided, as well as the current status of the project and a recent use case is given, namely that of the first Italian production embracing an end-to-end ACES pipeline. In addition, new ACES components will be introduced and a discussion started about possible uses for long-time preservation of color imaging in video-content heritage.

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Section: Commonlut Formatmentioning

confidence: 99%

The Academy Color Encoding System (ACES): A Professional Color-Management Framework for Production, Post-Production and Archival of Still and Motion Pictures

Arrighetti

2017

J. Imaging

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“…the replication of the same set over and over on infinitely decreasing length scales [1,2]) of a cavity or radiating element is responsible for the self-similarity of its spectrum, in both the continuous [3][4][5] and discrete cases [6]. For example, properly synthesized fractal antennas feature multi-band properties, as several theoretical and experimental studies confirmed [7,8].…”

Section: Introductionmentioning

confidence: 99%

On models of fractal networks

Arrighetti

Cupis

Gerosa

2008

Circuit Theory & Apps

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SUMMARYA couple of iterative models for the theoretical study of fractal networks whose topologies are generated via iterated function systems is presented: a lumped-parameter impedor-oriented one and a two-portnetwork-oriented one. With the former, the voltage and current patterns give a detailed understanding of the electromagnetic fields' self-similar distribution throughout the network; on the other hand, model complexity exponentially increases with the prefractal iteration order. The latter 'black-box' model only controls port-oriented global parameters that are the ones commonly used in the integration of different electronic systems, and its complexity is independent of prefractal order. Sierpinski gasket and carpet topologies are reported as examples.

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