Download or read book Spatio temporal Volume based Video Event Detection written by Jing Wang and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Online and offline video clips provide rich information on dynamic events that occurred over a period of time, for example, human actions, crowd behaviours, and other subject pattern changes. Although substantial progresses have been made in the last 3 decades on 2D image feature processing and their applications in areas such as face matching and objects recognition, video event detection still remains one of the most challenging fields in computer vision study due to the wide range of continuous and non-linear signals engaged by an imaging system, and the inherent semantic difficulties in machine-based understanding of the detected feature patterns. For bridging the gap between the pixel-level image features and the semantic "meanings" of a videoed single human event, this research has investigated the problem domain through employing the 3D Spatio-Temporal Volume (STV) structure and its global feature paradigm for event pattern recognition. The process pipeline follows an improved Pair-wise Region Comparison (I-PWRC) and a region intersection (RI) based 3D template matching approach for detecting and identifying human actions under uncontrolled real-world videoing conditions. To maintain the run-time performance of this innovative system design, this programme has also developed an efficient pre-filtering mechanism to reduce the amount of voxels (volumetric pixels) that need to be processed in each operational cycle. For further improving the system's adaptability and robustness, several optimisation techniques, such as scale-invariant template matching and event location prediction mechanisms, have also been developed and implemented. The proposed design has been tested on various renowned online computer vision research databases and been benchmarked against other classic implementation strategies and systems. Satisfactory evaluation results have been obtained through statistical analyses on standard test criteria such as "Recall" rate and the processing efficiency.
Download or read book Progress in Pattern Recognition Image Analysis Computer Vision and Applications written by Eduardo Bayro-Corrochano and published by Springer. This book was released on 2014-10-23 with total page 1071 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 19th Iberoamerican Congress on Pattern Recognition, CIARP 2014, held in Puerto Vallarta, Jalisco, Mexico, in November 2014. The 115 papers presented were carefully reviewed and selected from 160 submissions. The papers are organized in topical sections on image coding, processing and analysis; segmentation, analysis of shape and texture; analysis of signal, speech and language; document processing and recognition; feature extraction, clustering and classification; pattern recognition and machine learning; neural networks for pattern recognition; computer vision and robot vision; video segmentation and tracking.
Download or read book Intelligent Video Event Analysis and Understanding written by Jianguo Zhang and published by Springer. This book was released on 2011-02-02 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the vast development of Internet capacity and speed, as well as wide adop- tion of media technologies in people’s daily life, a large amount of videos have been surging, and need to be efficiently processed or organized based on interest. The human visual perception system could, without difficulty, interpret and r- ognize thousands of events in videos, despite high level of video object clutters, different types of scene context, variability of motion scales, appearance changes, occlusions and object interactions. For a computer vision system, it has been be very challenging to achieve automatic video event understanding for decades. Broadly speaking, those challenges include robust detection of events under - tion clutters, event interpretation under complex scenes, multi-level semantic event inference, putting events in context and multiple cameras, event inference from object interactions, etc. In recent years, steady progress has been made towards better models for video event categorisation and recognition, e. g. , from modelling events with bag of spatial temporal features to discovering event context, from detecting events using a single camera to inferring events through a distributed camera network, and from low-level event feature extraction and description to high-level semantic event classification and recognition. Nowadays, text based video retrieval is widely used by commercial search engines. However, it is still very difficult to retrieve or categorise a specific video segment based on their content in a real multimedia system or in surveillance applications.
Download or read book Proceedings written by and published by IEEE. This book was released on 2001 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Contains 12 papers from a July 2001 workshop, reporting on recent research in the processing of video data for the detection and recognition of events. Themes are event detection and tracking, human motion and action recognition, and multi-modal events. Specific topics include foreground segmentation using adaptive mixture models in color and depth, multi-modal 3-D tracking and event detection via the particle filter, and hierarchical motion history images for recognizing human motion. Other subjects are view-invariant representation and learning of human action, content-based video retrieval by integration of spatio-temporal and stochastic recognition of events, and detecting semantic concepts using context and audiovisual features. This volume lacks a subject index. c. Book News Inc.
Download or read book Advances in Visual Computing written by George Bebis and published by Springer Science & Business Media. This book was released on 2010-11-05 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three volume set LNCS 6453, LNCS 6454, and LNCS 6455 constitutes the refereed proceedings of the 6th International Symposium on Visual Computing, ISVC 2010, held in Las Vegas, NV, USA, in November/December 2010. The 93 revised full papers and 73 poster papers presented together with 44 full and 6 poster papers of 7 special tracks were carefully reviewed and selected from more than 300 submissions. The papers of part I (LNCS 6453) are organized in computational bioimaging, computer graphics, behavior detection and modeling, low-level color image processing, feature extraction and matching, visualization, motion and tracking, unconstrained biometrics: advances and trends, 3D mapping, modeling and surface reconstruction, and virtual reality. Part II (LNCS 6454) comprises topics such as calibration, pose estimation, and reconstruction, segmentation, stereo, registration, medical imaging, low cost virtual reality: expanding horizons, best practices in teaching visual computing, applications, and video analysis and event recognition. Part III (LNCS 6455) mainly contains papers of the poster session and concludes with contributions addressing visualization, as well as motion and tracking.
Download or read book Handbook of Research on Advanced Concepts in Real Time Image and Video Processing written by Anwar, Md. Imtiyaz and published by IGI Global. This book was released on 2017-07-13 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technological advancements have created novel applications for image and video processing. With these developments, real-world processing problems can be solved more easily. The Handbook of Research on Advanced Concepts in Real-Time Image and Video Processing is a pivotal reference source for the latest research findings on the design, realization, and deployment of image and video processing systems meant for real-time environments. Featuring extensive coverage on relevant areas such as feature detection, reconfigurable computing, and stream processing, this publication is an ideal resource for academics, researchers, graduate students, and technology developers.
Download or read book Advances in Visual Computing written by Richard Boyle and published by Springer. This book was released on 2010-11-19 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is with great pleasure that we present the proceedings of the 6th Inter- tional, Symposium on Visual Computing (ISVC 2010), which was held in Las Vegas, Nevada. ISVC provides a common umbrella for the four main areas of visual computing including vision, graphics, visualization, and virtual reality. The goal is to provide a forum for researchers, scientists, engineers, and pr- titioners throughout the world to present their latest research ?ndings, ideas, developments, and applications in the broader area of visual computing. This year, the program consisted of 14 oral sessions, one poster session, 7 special tracks, and 6 keynote presentations. The response to the call for papers was very good; we received over 300 submissions for the main symposium from which we accepted 93 papers for oral presentation and 73 papers for poster p- sentation. Special track papers were solicited separately through the Organizing and Program Committees of each track. A total of 44 papers were accepted for oral presentation and 6 papers for poster presentation in the special tracks.
Download or read book Event Detection in Soccer Using Spatio temporal Data written by Jens Christian Christensen Jensen and published by . This book was released on 2015 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Censorship Surveillance and Privacy Concepts Methodologies Tools and Applications written by Management Association, Information Resources and published by IGI Global. This book was released on 2018-10-05 with total page 2215 pages. Available in PDF, EPUB and Kindle. Book excerpt: The censorship and surveillance of individuals, societies, and countries have been a long-debated ethical and moral issue. In consequence, it is vital to explore this controversial topic from all angles. Censorship, Surveillance, and Privacy: Concepts, Methodologies, Tools, and Applications is a vital reference source on the social, moral, religious, and political aspects of censorship and surveillance. It also explores the techniques of technologically supported censorship and surveillance. Highlighting a range of topics such as political censorship, propaganda, and information privacy, this multi-volume book is geared towards government officials, leaders, professionals, policymakers, media specialists, academicians, and researchers interested in the various facets of censorship and surveillance.
Download or read book Trends and Topics in Computer Vision written by Kiriakos N. Kutulakos and published by Springer. This book was released on 2012-11-23 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volumes LNCS 6553 and 6554 constitute the refereed post-proceedings of 7 workshops held in conjunction with the 11th European Conference on Computer Vision, held in Heraklion, Crete, Greece in September 2010. The 62 revised papers presented together with 2 invited talks were carefully reviewed and selected from numerous submissions. The first volume contains 26 revised papers and 2 invited talks selected from the following workshops: First International Workshop on Parts and Attributes; Third Workshop on Human Motion Understanding, Modeling, Capture and Animation; and International Workshop on Sign, Gesture and Activity (SGA 2010).
Download or read book Hybrid Intelligent Techniques for Pattern Analysis and Understanding written by Siddhartha Bhattacharyya and published by CRC Press. This book was released on 2017-10-30 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Intelligent Techniques for Pattern Analysis and Understanding outlines the latest research on the development and application of synergistic approaches to pattern analysis in real-world scenarios. An invaluable resource for lecturers, researchers, and graduates students in computer science and engineering, this book covers a diverse range of hybrid intelligent techniques, including image segmentation, character recognition, human behavioral analysis, hyperspectral data processing, and medical image analysis.
Download or read book Anomalous Event Detection from Surveillance Video written by Fan Jiang and published by LAP Lambert Academic Publishing. This book was released on 2011-02 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Content-based video analysis serves as the cornerstone for many applications: video understanding or summarization, multimedia information retrieval and data mining, etc. In our research, we aim to automatically detect anomalous events from surveillance videos (such as video monitoring traffic flow or pedestrian congestion in public spaces). Conceptually, what constitutes an anomaly varies in different video scenarios and is difficult to be defined in a general case. Our first solution is based on unsupervised clustering of object trajectories and anomalous trajectory identification in a probabilistic framework. Then we extend this solution to an arbitrary time length (any part of a complete trajectory) and multiple objects (multiple trajectories). Furthermore, we solve problems specifically in video scenarios where object trajectories cannot be extracted (e.g., crowd motion analysis). Our contributions include a novel hierarchical clustering algorithm and categorization of anomalous video events by spatiotemporal context.
Download or read book Urban Computing written by Yu Zheng and published by MIT Press. This book was released on 2019-02-05 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative treatment of urban computing, offering an overview of the field, fundamental techniques, advanced models, and novel applications. Urban computing brings powerful computational techniques to bear on such urban challenges as pollution, energy consumption, and traffic congestion. Using today's large-scale computing infrastructure and data gathered from sensing technologies, urban computing combines computer science with urban planning, transportation, environmental science, sociology, and other areas of urban studies, tackling specific problems with concrete methodologies in a data-centric computing framework. This authoritative treatment of urban computing offers an overview of the field, fundamental techniques, advanced models, and novel applications. Each chapter acts as a tutorial that introduces readers to an important aspect of urban computing, with references to relevant research. The book outlines key concepts, sources of data, and typical applications; describes four paradigms of urban sensing in sensor-centric and human-centric categories; introduces data management for spatial and spatio-temporal data, from basic indexing and retrieval algorithms to cloud computing platforms; and covers beginning and advanced topics in mining knowledge from urban big data, beginning with fundamental data mining algorithms and progressing to advanced machine learning techniques. Urban Computing provides students, researchers, and application developers with an essential handbook to an evolving interdisciplinary field.
Download or read book Exploiting Concepts In Videos For Video Event Detection written by Ethem Can and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Video event detection is the task of searching videos for events of interest to a user where an event is a complex activity which is localized in time and space. The video event detection problem has gained more importance as the amount of online video is increasing by more than 300 hours every minute on Youtube alone. In this thesis, we tackle three major video event detection problems: video event detection with exemplars (VED-ex), where a large number of example videos are associated with queries; video event detection with few exemplars (VED-ex_few), in which only a small number of example videos are associated with queries; and zero-shot video event detection (VED-zero), where no exemplar videos are associated with queries. We first define a new way of describing videos concisely, one that is built around using query-independent concepts (e.g., a fixed set of concepts for all queries) with a space-efficient representation. Using query-independent concepts enables us to learn a retrieval model for any query without requiring a new set of concepts. Our space-efficient representation helps reduce the amount of time required to train/test a retrieval model and the amount of space to store video representations on disk. When the number of example videos associated with a query decreases, the retrieval accuracy decreases as well. We present a method that incorporates multiple one-exemplar models into video event detection aiming at improving retrieval accuracies when there are few exemplars available. By incorporating multiple one-exemplar models into video event detection with few exemplars, we are able to obtain significant improvements in terms of mean average precision compared to the case of a monolithic model. Having no exemplar videos associated with queries makes the video event detection problem more challenging as we cannot train a retrieval model using example videos. It is also more realistic since compiling a number of example videos might be costly. We tackle this problem by providing a new and effective zero-shot video event detection model that exploits dependencies of concepts in videos. Our dependency work uses a Markov Random Field (MRF) based retrieval model and assumes three dependency settings: 1) full independence, where each concept is considered independently; 2) spatial dependence, where the co-occurrence of two concepts in the same video frame is treated as important; and 3) temporal dependence, where having concepts co-occur in consecutive frames is treated as important. Our MRF based retrieval model improves retrieval accuracies significantly compared to the common bag-of-concepts approach with an independence assumption.
Download or read book Proceedings written by and published by Computer Science Press. This book was released on 2001 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Contains 12 papers from a July 2001 workshop, reporting on recent research in the processing of video data for the detection and recognition of events. Themes are event detection and tracking, human motion and action recognition, and multi-modal events. Specific topics include foreground segmentation using adaptive mixture models in color and depth, multi-modal 3-D tracking and event detection via the particle filter, and hierarchical motion history images for recognizing human motion. Other subjects are view-invariant representation and learning of human action, content-based video retrieval by integration of spatio-temporal and stochastic recognition of events, and detecting semantic concepts using context and audiovisual features. This volume lacks a subject index. c. Book News Inc.
Download or read book Multimedia Retrieval written by Henk M. Blanken and published by Springer Science & Business Media. This book was released on 2007-08-13 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on more than 10 years of teaching experience, Blanken and his coeditors have assembled all the topics that should be covered in advanced undergraduate or graduate courses on multimedia retrieval and multimedia databases. The single chapters of this textbook explain the general architecture of multimedia information retrieval systems and cover various metadata languages such as Dublin Core, RDF, or MPEG. The authors emphasize high-level features and show how these are used in mathematical models to support the retrieval process. For each chapter, there’s detail on further reading, and additional exercises and teaching material is available online.
Download or read book Visual Event Computing written by and published by Bookboon. This book was released on with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
