Authority of Images / Images of Authority:Shaping Political and Cultural Identities in the Pre-Modern World
The history of images can be described as a history of technology and mediality. The development of images is deeply rooted in the potentials of media technologies and the numerous human inventions in the range of traditional craftsmanship, engineering science, computer science, and art and design. The factual embedding of images in the historical-technological processes constitutes a complex structure of an autonomous ´´image evolution´´ that must be highlighted, characterized and analyzed by the interdisciplinary academic discourses that are related to the functions and structures of visuality, pictoriality, and forms of multi-sensoric representations. The chosen term ´´evolution´´ is deliberately indicating structural laws that underlie historical events. These laws are intentional and logical processes of a historical and technological interdependency. In this interdependency, technology is evolving out of its inherent structures and additionally embedded in anthropological conditions and sociocultural dynamics. In this context, we should work with the concept of an ´´image evolution´´.
Images of Power and the Power of Images:Control, Ownership, and Public Space. 1. Auflage
A comprehensive account of the grammar of visual design. Draws on examples from children´s drawings to textbook illustrations, photo-journalism to fine art, as well as three-dimensional forms such as sculpture to examine how images convey meaning.
Heavily represented sections of contemporary philosophy subscribe to the notion of ´´embodiment´´. However promising this pragmatic turn of events may be, it remains limited in that it interprets the world as a projection of the cognizing ´´I´´. By contrast, Image Acts focuses on the counterforce of the form of images. The book subdivides this sphere into three parts: imitation, substitution, and the pure effect of the form. All three parts are contemplated with examples from antiquity through to the present and the iconoclastic controversies of our times. From this reconstruction of the image act springs the element of a new philosophy of affordance.Image Acts focuses on the counterforce of the form of images. The book subdivides this sphere into three parts: imitation, substitution, and the pure effect of the form. All three parts are contemplated with examples from antiquity through to the present and the iconoclastic controversies of our times. From this reconstruction of the image act springs the element of a new philosophy of affordance.
This book introduces the classical and modern image reconstruction technologies. It covers topics in two-dimensional (2D) parallel-beam and fan-beam imaging, three-dimensional (3D) parallel ray, parallel plane, and cone-beam imaging. Both analytical and iterative methods are presented. The applications in X-ray CT, SPECT (single photon emission computed tomography), PET (positron emission tomography), and MRI (magnetic resonance imaging) are discussed. Contemporary research results in exact region-of-interest (ROI) reconstruction with truncated projections, Katsevich´s cone-beam filtered backprojection algorithm, and reconstruction with highly under-sampled data are included. The last chapter of the book is devoted to the techniques of using a fast analytical algorithm to reconstruct an image that is equivalent to an iterative reconstruction. These techniques are the author´s most recent research results. This book is intended for students, engineers, and researchers who are interested in medical image reconstruction. Written in a non-mathematical way, this book provides an easy access to modern mathematical methods in medical imaging. Table of Content:Chapter 1 Basic Principles of Tomography1.1 Tomography1.2 Projection1.3 Image Reconstruction1.4 Backprojection1.5 Mathematical ExpressionsProblemsReferencesChapter 2 Parallel-Beam Image Reconstruction2.1 Fourier Transform2.2 Central Slice Theorem2.3 Reconstruction Algorithms2.4 A Computer Simulation2.5 ROI Reconstruction with Truncated Projections2.6 Mathematical Expressions (The Fourier Transform and Convolution , The Hilbert Transform and the Finite Hilbert Transform , Proof of the Central Slice Theorem, Derivation of the Filtered Backprojection Algorithm , Expression of the Convolution Backprojection Algorithm, Expression of the Radon Inversion Formula ,Derivation of the Backprojection-then-Filtering AlgorithmProblemsReferencesChapter 3 Fan-Beam Image Reconstruction3.1 Fan-Beam Geometry and Point Spread Function3.2 Parallel-Beam to Fan-Beam Algorithm Conversion3.3 Short Scan3.4 Mathematical Expressions (Derivation of a Filtered Backprojection Fan-Beam Algorithm, A Fan-Beam Algorithm Using the Derivative and the Hilbert Transform)ProblemsReferencesChapter 4 Transmission and Emission Tomography4.1 X-Ray Computed Tomography4.2 Positron Emission Tomography and Single Photon Emission Computed Tomography4.3 Attenuation Correction for Emission Tomography4.4 Mathematical ExpressionsProblemsReferencesChapter 5 3D Image Reconstruction5.1 Parallel Line-Integral Data5.2 Parallel Plane-Integral Data5.3 Cone-Beam Data (Feldkamp´s Algorithm, Grangeat´s Algorithm, Katsevich´s Algorithm)5.4 Mathematical Expressions (Backprojection-then-Filtering for Parallel Line-Integral Data, Filtered Backprojection Algorithm for Parallel Line-Integral Data, 3D Radon Inversion Formula, 3D Backprojection-then-Filtering Algorithm for Radon Data, Feldkamp´s Algorithm, Tuy´s Relationship, Grangeat´s Relationship, Katsevich´s Algorithm)ProblemsReferencesChapter 6 Iterative Reconstruction6.1 Solving a System of Linear Equations6.2 Algebraic Reconstruction Technique6.3 Gradient Descent Algorithms6.4 Maximum-Likelihood Expectation-Maximization Algorithms6.5 Ordered-Subset Expectation-Maximization Algorithm6.6 Noise Handling (Analytical Methods, Iterative Methods, Iterative Methods)6.7 Noise Modeling as a Likelihood Function6.8 Including Prior Knowledge6.9 Mathematical Expressions (ART, Conjugate Gradient Algorithm, ML-EM, OS-EM, Green´s One-Step Late Algorithm, Matched and Unmatched Projector/Backprojector Pairs )6.10 Reconstruction Using Highly Undersampled Data with l0 MinimizationProblemsReferencesChapter 7 MRI Reconstruction7.1 The ´M´7.2 The ´R´7.3 The ´I´; (To Obtain z-Information, x-Information, y-Information)7.4 Mathematical ExpressionsProblemsReferencesIndexing
Modern life is a sea of images. With so much visual data bombarding us-from personal devices to mass media-our brains must rapidly adapt to make sense of it all. Here to guide us is America´s premier intellectual provocateur, Camille Paglia. In these pages, Paglia returns to the subject that made her famous, situating our current visual environment within the epic scope of all of art history. With trademark audacity, Paglia tours through more than two dozen seminal paintings, sculptures, architectural styles, performance pieces, and digital art works that have transformed our world. Combining close analysis with historical context, she trains our eye to each image-from an Egyptian tomb to Jackson Pollock´s abstract Green Silver to Renée Cox´s daring performance piece Chillin´ with Liberty. And in her stunning conclusion, she declares the avant-garde tradition dead and film director George Lucas the world´s greatest living artist. Written with energy, erudition, and wit, Glittering Images will profoundly change the way we see.
Fremdsprachiges Buch, Fachbuch / Sprache: Englisch / Themen: Kunst & Kultur, Politik, Architektur, Fotografie / Ausgabe: Taschenbuch
The crash of a Dallas-bound jet wasn´t just a tragedy to TV reporter Avery Daniels; it was an act of fate that handed her a golden opportunity to further her career. Mistaken for a glamorous, selfish woman named Carole Rutledge, the badly injured Avery would find that plastic surgery had given her Carole´s face, the famous senatorial candidate Tate Rutledge for a husband, and a powerful Texas dynasty for in-laws. And as she lay helpless in the hospital, she would make a shattering discovery: Someone close to Tate planned to assassinate him. Now, to save Tate´s life, Avery must live another woman´s life -- and risk her own...