This book discusses efficient prediction techniques for the current state-of-the-art High Efficiency Video Coding (HEVC) standard, focusing on the compression of a wide range of video signals, such as 3D video, Light Fields and natural images. The authors begin with a review of the state-of-the-art predictive coding methods and compression technologies for both 2D and 3D multimedia contents, which provides a good starting point for new researchers in the field of image and video compression. New prediction techniques that go beyond the standardized compression technologies are then presented and discussed. In the context of 3D video, the authors describe a new predictive algorithm for the compression of depth maps, which combines intra-directional prediction, with flexible block partitioning and linear residue fitting. New approaches are described for the compression of Light Field and still images, which enforce sparsity constraints on linear models. The Locally Linear Embedding-based prediction method is investigated for compression of Light Field images based on the HEVC technology. A new linear prediction method using sparse constraints is also described, enabling improved coding performance of the HEVC standard, particularly for images with complex textures based on repeated structures. Finally, the authors present a new, generalized intra-prediction framework for the HEVC standard, which unifies the directional prediction methods used in the current video compression standards, with linear prediction methods using sparse constraints. Experimental results for the compression of natural images are provided, demonstrating the advantage of the unified prediction framework over the traditional directional prediction modes used in HEVC standard.
Judith Butler beyond gender is philosophy in motion. There is nothing superfluous about this book. Nor is there any pretension of displaying erudition. What one will read here is political philosophy, which is philosophy itself, according to the author. She takes personal and collective mourning as an object of research and reflection. In this project, she joins Judith Butler, a philosopher who has been approaching mourning as a necessary and crucial issue for political criticism for quite some time now. We live in a time when mourning has a great meaning. The covid-19 pandemic has already caused the death of millions of people around the world, hundreds of thousands in Brazil. An immense collective loss. We are hopelessly constituted by our losses and absences. We are also constituted by our memories. Carla Rodrigues also makes us think about all these issues. She makes us reflect on inequality in death, on the lives that matter as well as those that are lost; on which lives are grievable. There is no denying this desolate scenario, even when some insist on it. We share this collective mourning. It is about claiming the right to experience it. "Finding ways to defend a more egalitarian society requires a public policy on mourning and memory," says Carla. Guacira Lopes Louro
This book covers the major drivers of the Latin American region's economy, including exports of agricultural products, petroleum and minerals, and manufactured goods, along with the service and tourism industries. Despite recent improvements, the Latin American economy remains dependent on commodity exports to the West, presenting a challenge to the region's long-term future. When used in the classroom, this resource provides readers with the tools they need to analyze concepts in economics and how they affect the countries of Latin America.
The history of China, as any history, is a story of and in translation. Translating Early Modern China tells the story of translation in China to and from non-European languages and Latin between the fourteenth and the nineteenth centuries, and primarily in the Ming and Qing dynasties. Each chapter finds a particular translator resurrected from the past to tell the story of a text that helped shape the history of translation in China. In Chinese, Mongolian, Manchu, Latin, and more, these texts helped to make the Chinese language what it was at different points in its history. This volume explores what the form of an academic history book might look like by playing with fictioning as part of the historian's craft. The book's many stories--of glossaries and official Ming translation bureaus, of bilingual Ming Chinese-Mongolian language primers, of the first Latin grammar of Manchu, of a Qing Manchu conversation manual, of a collection of Manchu poems by a Qing translator--serve as case studies that open out into questions of language and translation in China's past, of the use of fiction as a historian's tool, and of the ways that translation creates language.
Foreword This volume includes papers presented at TAKE 2021 Conference The Multidisciplinary Conference on Intangibles, held online between the 7 th and the 9th July 2021 and hosted by Universidade Portucalense, from Porto, Portugal. Detailed information about the Conference is to be found in the Conference Website: https://take-conference2021.com/. A Book of Abstracts was also published. TAKE 2021 included 80 presentations, by almost 100 participants, including 8 keynote speakers, from 20 countries. Done during the Covid-19 crisis, TAKE 2021 was a show of intelligence, work, and solidarity, We thank infinitely all those involved, which contributed to the success of the event. We hope to continue the TAKE saga, next year with TAKE 2022 whose website is already online: https://take-conference2022.com/. Best wishes and kindest regards. Eduardo Tomé, on behalf of the Organizing Committee
Semiotic engineering was originally proposed as a semiotic approach to designing user interface languages. Over the years, with research done at the Department of Informatics of the Pontifical Catholic University of Rio de Janeiro, it evolved into a semiotic theory of human-computer interaction (HCI). It views HCI as computer-mediated communication between designers and users at interaction time. The system speaks for its designers in various types of conversations specified at design time. These conversations communicate the designers' understanding of who the users are, what they know the users want or need to do, in which preferred ways, and why. The designers' message to users includes even the interactive language in which users will have to communicate back with the system in order to achieve their specific goals. Hence, the process is, in fact, one of communication about communication, or metacommunication. Semiotic engineering has two methods to evaluate the quality of metacommunication in HCI: the semiotic inspection method (SIM) and the communicability evaluation method (CEM). Up to now, they have been mainly used and discussed in technical contexts, focusing on how to detect problems and how to improve the metacommunication of specific systems. In this book, Clarisse de Souza and Carla Leitão discuss how SIM and CEM, which are both qualitative methods, can also be used in scientific contexts to generate new knowledge about HCI. The discussion goes into deep considerations about scientific methodology, calling the reader's attention to the essence of qualitative methods in research and the kinds of results they can produce. To illustrate their points, the authors present an extensive case study with a free open-source digital audio editor called Audacity. They show how the results obtained with a triangulation of SIM and CEM point at new research avenues not only for semiotic engineering and HCI but also for other areas of computer science such as software engineering and programming. Table of Contents: Introduction / Essence of Semiotic Engineering / Semiotic Engineering Methods / Case Study with Audacity / Lessons Learned with Semiotic Engineering Methods / The Near Future of Semiotic Engineering
Esta exposição, centrando-se em três artistas portugueses - Carla Filipe (Aveiro, 1973), João Tengarrinha (Lisboa, 1970) e Paulo Brighenti (Lisboa, 1968) - quer explorar uma metodologia particular do acto de desenhar. Um processo que se centra numa luta entre o artista e a folha de papel, e o resultado desse combate descobre-se nas marcas deixadas na folha.
This book discusses efficient prediction techniques for the current state-of-the-art High Efficiency Video Coding (HEVC) standard, focusing on the compression of a wide range of video signals, such as 3D video, Light Fields and natural images. The authors begin with a review of the state-of-the-art predictive coding methods and compression technologies for both 2D and 3D multimedia contents, which provides a good starting point for new researchers in the field of image and video compression. New prediction techniques that go beyond the standardized compression technologies are then presented and discussed. In the context of 3D video, the authors describe a new predictive algorithm for the compression of depth maps, which combines intra-directional prediction, with flexible block partitioning and linear residue fitting. New approaches are described for the compression of Light Field and still images, which enforce sparsity constraints on linear models. The Locally Linear Embedding-based prediction method is investigated for compression of Light Field images based on the HEVC technology. A new linear prediction method using sparse constraints is also described, enabling improved coding performance of the HEVC standard, particularly for images with complex textures based on repeated structures. Finally, the authors present a new, generalized intra-prediction framework for the HEVC standard, which unifies the directional prediction methods used in the current video compression standards, with linear prediction methods using sparse constraints. Experimental results for the compression of natural images are provided, demonstrating the advantage of the unified prediction framework over the traditional directional prediction modes used in HEVC standard.
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