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Quality Assessment Of Visual Content
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Book Synopsis Quality Assessment of Visual Content by : Ke Gu
Download or read book Quality Assessment of Visual Content written by Ke Gu and published by Springer Nature. This book was released on 2022-10-19 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with a comprehensive review of image quality assessment technology, particularly applications on screen content images, 3D-synthesized images, sonar images, enhanced images, light-field images, VR images, and super-resolution images. It covers topics containing structural variation analysis, sparse reference information, multiscale natural scene statistical analysis, task and visual perception, contour degradation measurement, spatial angular measurement, local and global assessment metrics, and more. All of the image quality assessment algorithms of this book have a high efficiency with better performance compared to other image quality assessment algorithms, and the performance of these approaches mentioned above can be demonstrated by the results of experiments on real-world images. On the basis of this, those interested in relevant fields can use the results obtained through these quality assessment algorithms for further image processing. The goal of this book is to facilitate the use of these image quality assessment algorithms by engineers and scientists from various disciplines, such as optics, electronics, math, photography techniques and computation techniques. The book can serve as a reference for graduate students who are interested in image quality assessment techniques, for front-line researchers practicing these methods, and for domain experts working in this area or conducting related application development.
Book Synopsis Visual Signal Quality Assessment by : Chenwei Deng
Download or read book Visual Signal Quality Assessment written by Chenwei Deng and published by Springer. This book was released on 2014-11-11 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive coverage of the latest trends/advances in subjective and objective quality evaluation for traditional visual signals, such as 2D images and video, as well as the most recent challenges for the field of multimedia quality assessment and processing, such as mobile video and social media. Readers will learn how to ensure the highest storage/delivery/ transmission quality of visual content (including image, video, graphics, animation, etc.) from the server to the consumer, under resource constraints, such as computation, bandwidth, storage space, battery life, etc.
Book Synopsis Visual Quality Assessment by Machine Learning by : Long Xu
Download or read book Visual Quality Assessment by Machine Learning written by Long Xu and published by Springer. This book was released on 2015-05-09 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book encompasses the state-of-the-art visual quality assessment (VQA) and learning based visual quality assessment (LB-VQA) by providing a comprehensive overview of the existing relevant methods. It delivers the readers the basic knowledge, systematic overview and new development of VQA. It also encompasses the preliminary knowledge of Machine Learning (ML) to VQA tasks and newly developed ML techniques for the purpose. Hence, firstly, it is particularly helpful to the beginner-readers (including research students) to enter into VQA field in general and LB-VQA one in particular. Secondly, new development in VQA and LB-VQA particularly are detailed in this book, which will give peer researchers and engineers new insights in VQA.
Book Synopsis Content-based Photo Quality Assessment by : Wei Luo
Download or read book Content-based Photo Quality Assessment written by Wei Luo and published by . This book was released on 2012 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This argument is supported by extensive experimental comparisons of existing photo quality assessment approaches as well as our new features over different categories of photos. In addition, we propose an approach of online training an adaptive classifier to combine the proposed features according to the visual content of a test photo without knowing its category. Another contribution of this work is to construct a large and diversified benchmark database for the research of photo quality assessment. It includes 17, 613 photos with manually labeled ground truth. This new benchmark database will be released to the research community.
Book Synopsis Perceptual Quality Assessment for Compressed Video by : Kai-Chieh Yang
Download or read book Perceptual Quality Assessment for Compressed Video written by Kai-Chieh Yang and published by . This book was released on 2007 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: With multimedia research burgeoning, video applications have become essential to our daily life. However, as the compression becomes more aggressive, too much data loss results in degrading perceived video quality for viewers. Therefore, an accurate quality measurement is important to improve or preserve the quality of compressed video. This dissertation focuses on measuring the quality degradations that are caused by compression. We specifically target distortions with impact above the human perceptual threshold, which are also called artifacts. This type of distortion usually appears in a structured form. This characteristic makes quality assessment highly content dependent and many existing metrics fail in this regard. Some previous research has tried to raise the accuracy of video quality assessment by considering human visual system (HVS) effects, or human visual attention factors. However, both HVS and human visual attention have very strong interaction in the video quality assessment process, and none of the existing quality measurement research takes both of them into account. In addition, cognitive factors significantly influence the visual quality assessment process, but they have been ignored in current quality assessment research. Based on these realizations, a new video quality assessment philosophy is introduced in this thesis. It considers the characteristics of artifacts, effects from HVS, visual attention, and cognitive non-linearity. First, a new human visual module is proposed, it takes both visual masking and attention effects into account. Its unique design makes embedding this visual module in any video quality related applications very easy. Based on this new human visual module, a blurriness metric is designed which includes cognitive characteristics. This new blurriness metric does not rely on edge information, and is more robust at assessing heavily compressed video data. A metric for artifacts introduced by motion compensated field interpolation (MCFI) is also implemented. It is the first metric ever designed for measuring the spatial quality of temporally interpolated frames. From a temporal quality perspective, a novel temporal quality metric is designed to measure the temporal quality degradation caused by both uniform and non-uniform distributed frame loss. Experimental data shows these metrics significantly outperform the existing metrics.
Book Synopsis 3D Visual Content Creation, Coding and Delivery by : Pedro Amado Assunção
Download or read book 3D Visual Content Creation, Coding and Delivery written by Pedro Amado Assunção and published by Springer. This book was released on 2018-07-28 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the different aspects of modern 3D multimedia technologies by addressing several elements of 3D visual communications systems, using diverse content formats, such as stereo video, video-plus-depth and multiview, and coding schemes for delivery over networks. It also presents the latest advances and research results in regards to objective and subjective quality evaluation of 3D visual content, extending the human factors affecting the perception of quality to emotional states. The contributors describe technological developments in 3D visual communications, with particular emphasis on state-of-the-art advances in acquisition of 3D visual scenes and emerging 3D visual representation formats, such as: multi-view plus depth and light field; evolution to freeview and light-field representation; compression methods and robust delivery systems; and coding and delivery over various channels. Simulation tools, testbeds and datasets that are useful for advanced research and experimental studies in the field of 3D multimedia delivery services and applications are covered. The international group of contributors also explore the research problems and challenges in the field of immersive visual communications, in order to identify research directions with substantial economic and social impact. 3D Visual Content Creation, Coding and Delivery provides valuable information to engineers and computer scientists developing novel products and services with emerging 3D multimedia technologies, by discussing the advantages and current limitations that need to be addressed in order to develop their products further. It will also be of interest to students and researchers in the field of multimedia services and applications, who are particularly interested in advances bringing significant potential impact on future technological developments.
Book Synopsis High-Quality Visual Experience by : Marta Mrak
Download or read book High-Quality Visual Experience written by Marta Mrak and published by Springer Science & Business Media. This book was released on 2010-09-08 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Last few years have seen rapid acceptance of high-definition television (HDTV) technology around the world. This technology has been hugely successful in delivering more realistic television experience at home and accurate imaging for professional applications. Adoption of high definition continues to grow as consumers demand enhanced features and greater quality of content. Following this trend, natural evolution of visualisation technologies will be in the direction of fully realistic visual experience and highly precise imaging. However, using the content of even higher resolution and quality is not straightforward as such videos require significantly higher access bandwidth and more processing power. Therefore, methods for radical reduction of video bandwidth are crucial for realisation of high visual quality. Moreover, it is desirable to look into other ways of accessing visual content, solution to which lies in innovative schemes for content delivery and consumption. This book presents selected chapters covering technologies that will enable greater flexibility in video content representation and allow users to access content from any device and to interact with it.
Book Synopsis Image Content Retargeting by : Alessandro Artusi
Download or read book Image Content Retargeting written by Alessandro Artusi and published by CRC Press. This book was released on 2016-08-05 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years visual devices have proliferated, from the massive high-resolution, high-contrast screens to the tiny ones on mobile phones, with their limited dynamic range and color gamut. The wide variety of screens on which content may be viewed creates a challenge for developers. Adapting visual content for optimized viewing on all devices is called retargeting. This is the first book to provide a holistic view of the subject, thoroughly reviewing and analyzing the many techniques that have been developed for retargeting along dimensions such as color gamut, dynamic range, and spatial resolution.
Book Synopsis Multimedia Quality of Experience (QoE) by : Chang Wen Chen
Download or read book Multimedia Quality of Experience (QoE) written by Chang Wen Chen and published by John Wiley & Sons. This book was released on 2016-01-19 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multimedia Quality of Experience (QoE) Current Status and Future Requirements Multimedia Quality of Experience (QoE): Current Status and Future Requirements discusses the current status of QoE (Quality of Experience) research, providing guidelines on QoE assessment and management practice. Moreover, it covers many different aspects of QoE research, including definitions, standardization (ITU, ETSI, IEEE, IETF), measurement, management, and architectures. In addition, the authors bring together contributions from recognized experts (worldwide) in the area of subjective and objective QoE video assessment. Discusses the current status of QoE research; reporting the latest advances from various standardization bodies Provides guidelines on QoE assessment and management practice Explores methods, means, and architectures of QoE Considers future requirements of QoE
Book Synopsis Visual Content Indexing and Retrieval with Psycho-Visual Models by : Jenny Benois-Pineau
Download or read book Visual Content Indexing and Retrieval with Psycho-Visual Models written by Jenny Benois-Pineau and published by Springer. This book was released on 2017-10-13 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a deep analysis and wide coverage of the very strong trend in computer vision and visual indexing and retrieval, covering such topics as incorporation of models of Human Visual attention into analysis and retrieval tasks. It makes the bridge between psycho-visual modelling of Human Visual System and the classical and most recent models in visual content indexing and retrieval. The large spectrum of visual tasks, such as recognition of textures in static images, of actions in video content, image retrieval, different methods of visualization of images and multimedia content based on visual saliency are presented by the authors. Furthermore, the interest in visual content is modelled with the means of the latest classification models such as Deep Neural Networks is also covered in this book. This book is an exceptional resource as a secondary text for researchers and advanced level students, who are involved in the very wide research in computer vision, visual information indexing and retrieval. Professionals working in this field will also be interested in this book as a reference.
Book Synopsis Modern Image Quality Assessment by : Zhou Wang
Download or read book Modern Image Quality Assessment written by Zhou Wang and published by Springer Nature. This book was released on 2022-06-01 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Lecture book is about objective image quality assessment—where the aim is to provide computational models that can automatically predict perceptual image quality. The early years of the 21st century have witnessed a tremendous growth in the use of digital images as a means for representing and communicating information. A considerable percentage of this literature is devoted to methods for improving the appearance of images, or for maintaining the appearance of images that are processed. Nevertheless, the quality of digital images, processed or otherwise, is rarely perfect. Images are subject to distortions during acquisition, compression, transmission, processing, and reproduction. To maintain, control, and enhance the quality of images, it is important for image acquisition, management, communication, and processing systems to be able to identify and quantify image quality degradations. The goals of this book are as follows; a) to introduce the fundamentals of image quality assessment, and to explain the relevant engineering problems, b) to give a broad treatment of the current state-of-the-art in image quality assessment, by describing leading algorithms that address these engineering problems, and c) to provide new directions for future research, by introducing recent models and paradigms that significantly differ from those used in the past. The book is written to be accessible to university students curious about the state-of-the-art of image quality assessment, expert industrial R&D engineers seeking to implement image/video quality assessment systems for specific applications, and academic theorists interested in developing new algorithms for image quality assessment or using existing algorithms to design or optimize other image processing applications.
Book Synopsis Image Analysis and Recognition by : Fakhri Karray
Download or read book Image Analysis and Recognition written by Fakhri Karray and published by Springer. This book was released on 2019-08-12 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set LNCS 11662 and 11663 constitutes the refereed proceedings of the 16th International Conference on Image Analysis and Recognition, ICIAR 2019, held in Waterloo, ON, Canada, in August 2019. The 58 full papers presented together with 24 short and 2 poster papers were carefully reviewed and selected from 142 submissions. The papers are organized in the following topical sections: Image Processing; Image Analysis; Signal Processing Techniques for Ultrasound Tissue Characterization and Imaging in Complex Biological Media; Advances in Deep Learning; Deep Learning on the Edge; Recognition; Applications; Medical Imaging and Analysis Using Deep Learning and Machine Intelligence; Image Analysis and Recognition for Automotive Industry; Adaptive Methods for Ultrasound Beamforming and Motion Estimation.
Book Synopsis Computer Vision – ECCV 2022 by : Shai Avidan
Download or read book Computer Vision – ECCV 2022 written by Shai Avidan and published by Springer Nature. This book was released on 2022-10-22 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 39-volume set, comprising the LNCS books 13661 until 13699, constitutes the refereed proceedings of the 17th European Conference on Computer Vision, ECCV 2022, held in Tel Aviv, Israel, during October 23–27, 2022. The 1645 papers presented in these proceedings were carefully reviewed and selected from a total of 5804 submissions. The papers deal with topics such as computer vision; machine learning; deep neural networks; reinforcement learning; object recognition; image classification; image processing; object detection; semantic segmentation; human pose estimation; 3d reconstruction; stereo vision; computational photography; neural networks; image coding; image reconstruction; object recognition; motion estimation.
Book Synopsis Data Traffic Monitoring and Analysis by : Ernst Biersack
Download or read book Data Traffic Monitoring and Analysis written by Ernst Biersack and published by Springer. This book was released on 2013-03-02 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was prepared as the Final Publication of COST Action IC0703 "Data Traffic Monitoring and Analysis: theory, techniques, tools and applications for the future networks". It contains 14 chapters which demonstrate the results, quality,and the impact of European research in the field of TMA in line with the scientific objective of the Action. The book is structured into three parts: network and topology measurement and modelling, traffic classification and anomaly detection, quality of experience.
Book Synopsis Quality of Experience Modeling for Cloud Gaming Services by : Saman Zadtootaghaj
Download or read book Quality of Experience Modeling for Cloud Gaming Services written by Saman Zadtootaghaj and published by Springer Nature. This book was released on 2022-05-04 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the development of a gaming quality model to predict the gaming Quality of Experience (QoE) of players that could be used for planning the network service or quality monitoring of cloud gaming services. The author presents a model that is developed following a modular structure approach that keeps the different types of impairments separately. The book shows how such a modular structure allows developing a sustainable model as each component can be updated by advances in that specific research area or technology. The presented gaming quality model takes into account two modules of video quality and input quality. The latter considers the interactivity aspects of gaming. The video quality module offers a series of models that differ depending on the level of access to the video stream information, allowing high flexibility for service providers regarding the positions of measuring points within their system. In summary, the present book focuses on (1) creation of multiple image/video and cloud gaming quality datasets, (2) development of a gaming video classification, and (3) development of a series of gaming QoE models to predict the gaming QoE depending on the level of access to the video stream information.
Book Synopsis Immersive Video Technologies by : Giuseppe Valenzise
Download or read book Immersive Video Technologies written by Giuseppe Valenzise and published by Academic Press. This book was released on 2022-09-29 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get a broad overview of the different modalities of immersive video technologies—from omnidirectional video to light fields and volumetric video—from a multimedia processing perspective. From capture to representation, coding, and display, video technologies have been evolving significantly and in many different directions over the last few decades, with the ultimate goal of providing a truly immersive experience to users. After setting up a common background for these technologies, based on the plenoptic function theoretical concept, Immersive Video Technologies offers a comprehensive overview of the leading technologies enabling visual immersion, including omnidirectional (360 degrees) video, light fields, and volumetric video. Following the critical components of the typical content production and delivery pipeline, the book presents acquisition, representation, coding, rendering, and quality assessment approaches for each immersive video modality. The text also reviews current standardization efforts and explores new research directions. With this book the reader will a) gain a broad understanding of immersive video technologies that use three different modalities: omnidirectional video, light fields, and volumetric video; b) learn about the most recent scientific results in the field, including the recent learning-based methodologies; and c) understand the challenges and perspectives for immersive video technologies. Describes the whole content processing chain for the main immersive video modalities (omnidirectional video, light fields, and volumetric video) Offers a common theoretical background for immersive video technologies based on the concept of plenoptic function Presents some exemplary applications of immersive video technologies
Book Synopsis Emerging Technologies for 3D Video by : Frederic Dufaux
Download or read book Emerging Technologies for 3D Video written by Frederic Dufaux and published by John Wiley & Sons. This book was released on 2013-04-22 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the expectation of greatly enhanced user experience, 3D video is widely perceived as the next major advancement in video technology. In order to fulfil the expectation of enhanced user experience, 3D video calls for new technologies addressing efficient content creation, representation/coding, transmission and display. Emerging Technologies for 3D Video will deal with all aspects involved in 3D video systems and services, including content acquisition and creation, data representation and coding, transmission, view synthesis, rendering, display technologies, human perception of depth and quality assessment. Key features: Offers an overview of key existing technologies for 3D video Provides a discussion of advanced research topics and future technologies Reviews relevant standardization efforts Addresses applications and implementation issues Includes contributions from leading researchers The book is a comprehensive guide to 3D video systems and services suitable for all those involved in this field, including engineers, practitioners, researchers as well as professors, graduate and undergraduate students, and managers making technological decisions about 3D video.
