Download or read book Indoor Scene Understanding from Visual Analysis of Human Activity written by Sam Fowler and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Indoor Scene and Human Activity Analysis with Wireless Binary Sensor Networks written by Qingquan Sun and published by . This book was released on 2013 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indoor scene analysis aims to extract the scene information and perceive the situations. The goal of human activity study is to recognize human subjects' behavior patterns. Indoor scene analysis and human activity recognition can be used to enhance the performance of various applications ranging from healthcare to surveillance and energy efficient building. Our research is focusing on human sensing, behavioral biometrics, and situation awareness in indoor environment. The goal of my research is to build low-cost wireless sensing systems, design compressive sampling structures, and develop lightweight scene analysis and human activity recognition algorithms to form a human-centric intelligent sensing framework for the applications in smart environment. This work presents a framework for indoor scene analysis and human activity recognition based on pyroelectric infrared sensor and fiber-optic sensor. The main accomplishments of this thesis include the following aspects: (1) Wireless binary sensing infrastructure establishment. We have built two low-cost, low data throughput, wireless sensing infrastructures based on pyroelectric infrared sensor and fiber-optic sensor for indoor scene analysis and human activity recognition. In these systems, binary sensing technique has been employed to further reduce the data load and computation complexity. (2) Geometric sampling structure exploration. Sampling structure plays a key role in efficient information acquisition, data load reduction, and intrinsic feature determination. We have explored efficient sampling structures for both pyroelectric infrared and fiber-optic sensing systems by employing visibility modulation and space encoding schemes, respectively. (3) Indoor scene modelling and representation. Different from the conventional object-based methods which focus on individual characteristics, we have built a statistical, low-dimensional feature based scene representation model. Such model can not only discover the number of people, but also facilitate localization and identication. (4) Ground truth feature selection. We have created both informative and non-informative hierarchical inference models to seek the ground-truth scene bases. Meanwhile, various approaches including maximum a posteriori (MAP), expectation-maximization (EM), geometry embedding, variational Bayesian (VB), have been investigated to enhance the convergence as well as the robustness of the models. (5) Data driven and reasoning approaches integration. Compared with the instructed sensing modality and conventional human activity recognition approaches in wireless sensing systems, we have developed a new framework which combines data driven and reasoning methods to achieve learning and inference. More specifically, the sensing context, situation context, and environment context are utilized to facilitate information professing.

Download or read book Indoor Scene Understanding Using Non Conventional Cameras written by Clara Fernandez labrador and published by . This book was released on 2020 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humans understand environments effortlessly, under a wide variety of conditions, by the virtue of visual perception. Computer vision for similar visual understanding is highly desirable, so that machines can perform complex tasks by interacting with the real world, to assist or entertain humans. In this regard, we are particularly interested in indoor environments, where humans spend nearly all their lifetime.This thesis specifically addresses the problems that arise during the quest of the hierarchical visual understanding of indoor scenes.On the side of sensing the wide 3D world, we propose to use non-conventional cameras, namely 360o imaging and 3D sensors. On the side of understanding, we aim at three key aspects: room layout estimation; object detection, localization and segmentation; and object category shape modeling, for which novel and efficient solutions are provided.The focus of this thesis is on the following underlying challenges. First, the estimation of the 3D room layout from a single 360o image is investigated, which is used for the highest level of scene modelling and understanding. We exploit the assumption of Manhattan World and deep learning techniques to propose models that handle invisible parts of the room on the image, generalizing to more complex layouts. At the same time, new methods to work with 360o images are proposed, highlighting a special convolution that compensates the equirectangular image distortions.Second, considering the importance of context for scene understanding, we study the problem of object localization and segmentation, adapting the problem to leverage 360o images. We also exploit layout-objects interaction to lift detected 2D objects into the 3D room model.The final line of work of this thesis focuses on 3D object shape analysis. We use an explicit modelling of non-rigidity and a high-level notion of object symmetry to learn, in an unsupervised manner, 3D keypoints that are order-wise correspondent as well as geometrically and semantically consistent across objects in a category.Our models advance state-of-the-art on the aforementioned tasks, when each evaluated on respective reference benchmarks.

Download or read book Visual Analysis of Humans written by Thomas B. Moeslund and published by Springer Science & Business Media. This book was released on 2011-10-08 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique text/reference provides a coherent and comprehensive overview of all aspects of video analysis of humans. Broad in coverage and accessible in style, the text presents original perspectives collected from preeminent researchers gathered from across the world. In addition to presenting state-of-the-art research, the book reviews the historical origins of the different existing methods, and predicts future trends and challenges. Features: with a Foreword by Professor Larry Davis; contains contributions from an international selection of leading authorities in the field; includes an extensive glossary; discusses the problems associated with detecting and tracking people through camera networks; examines topics related to determining the time-varying 3D pose of a person from video; investigates the representation and recognition of human and vehicular actions; reviews the most important applications of activity recognition, from biometrics and surveillance, to sports and driver assistance.

Download or read book New Trends in Image Analysis and Processing ICIAP 2017 written by Sebastiano Battiato and published by Springer. This book was released on 2018-01-02 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of seven workshops held at the 19th International Conference on Image Analysis and Processing, ICIAP 2017, in Catania, Italy, in September 2017: First International Workshop on Brain-Inspired Computer Vision – WBICV 2017; Social Signal Processing and Beyond - SSPandBE 2017; Automatic affect analysis and synthesis - 3AS 2017; Background learning for detection and tracking from RGBD Videos - RGBD 2017; Natural human-computer Interaction and ecological perception in immersive Virtual and Augmented Reality - NIVAR 2017; 1st International Workshop on Biometrics as-a-service: cloud-based technology, systems and applications - IWBAAS 2017; 3rd International Workshop on Multimedia Assisted Dietary Management - MADiMa 2017.

Download or read book Multimodal Scene Understanding written by Michael Yang and published by Academic Press. This book was released on 2019-07-16 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multimodal Scene Understanding: Algorithms, Applications and Deep Learning presents recent advances in multi-modal computing, with a focus on computer vision and photogrammetry. It provides the latest algorithms and applications that involve combining multiple sources of information and describes the role and approaches of multi-sensory data and multi-modal deep learning. The book is ideal for researchers from the fields of computer vision, remote sensing, robotics, and photogrammetry, thus helping foster interdisciplinary interaction and collaboration between these realms. Researchers collecting and analyzing multi-sensory data collections – for example, KITTI benchmark (stereo+laser) - from different platforms, such as autonomous vehicles, surveillance cameras, UAVs, planes and satellites will find this book to be very useful. Contains state-of-the-art developments on multi-modal computing Shines a focus on algorithms and applications Presents novel deep learning topics on multi-sensor fusion and multi-modal deep learning

Download or read book Human Behavior Understanding written by Albert Ali Salah and published by Springer Science & Business Media. This book was released on 2010-07-30 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the First International Workshop on Human Behavior Understanding, HBU 2010, a satellite workshop of the International Conference on Pattern Recognition in Istanbul, Turkey, on August 22, 2010. The 13 revised full papers presented were carefully reviewed and selected from 29 submissions. The papers are organized in topical sections on analysis of human activities; non-verbal action dynamics; visual action recognition; and social signals.

Download or read book Task oriented Visual Understanding for Scenes and Events written by Siyuan Qi and published by . This book was released on 2019 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scene understanding and event understanding of humans correspond to the spatial and temporal aspects of computer vision. Such abilities serve as a foundation for humans to learn and perform tasks in the world we live in, thus motivating a task-oriented representation for machines to interpret observations of this world. Toward the goal of task-oriented scene understanding, I begin this thesis by presenting a human-centric scene synthesis algorithm. Realistic synthesis of indoor scenes is more complicated than neatly aligning objects; the scene needs to be functionally plausible, which requires the machine to understand the tasks that could be performed in the scene. Instead of directly modeling the object-object relationships, the algorithm learns the human-object relations and generate scene configurations by imagining the hidden human factors in the scene. I analyze the realisticity of the synthesized scenes, as well as its usefulness for various computer vision tasks. This framework is useful for backward inference of 3D scenes structures from images in an analysis-by-synthesis fashion; it is also useful for generating data to train various algorithms. Moving forward, I introduce a task-oriented event understanding framework for event parsing, event prediction, and task planning. In the computer vision literature, event understanding usually refers to action recognition from videos, i.e., "what is the action of the person". Task-oriented event understanding goes beyond this definition to find out the underlying driving forces of other agents. It answers questions such as intention recognition ("what is the person trying to achieve"), and intention prediction ("how the person is going to achieve the goal"), from a planning perspective. The core of this framework lies in the temporal representation for tasks that is appropriate for humans, robots, and the transfer between these two. In particular, inspired by natural language modeling, I represent the tasks by stochastic context-free grammars, which are natural choices to capture the semantics of tasks, but traditional grammar parsers (e.g., Earley parser) only take symbolic sentences as inputs. To overcome this drawback, I generalize the Earley parser to parse sequence data which is neither segmented nor labeled. This generalized Earley parser integrates a grammar parser with a classifier to find the optimal segmentation and labels. It can be used for event parsing, future predictions, as well as incorporating top-down task planning with bottom-up sensor inputs.

Download or read book Advances in Visual Computing written by George Bebis and published by Springer. This book was released on 2014-12-02 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volume set LNCS 8887 and 8888 constitutes the refereed proceedings of the 10th International Symposium on Visual Computing, ISVC 2014, held in Las Vegas, NV, USA. The 74 revised full papers and 55 poster papers presented together with 39 special track papers were carefully reviewed and selected from more than 280 submissions. The papers are organized in topical sections: Part I (LNCS 8887) comprises computational bioimaging, computer graphics; motion, tracking, feature extraction and matching, segmentation, visualization, mapping, modeling and surface reconstruction, unmanned autonomous systems, medical imaging, tracking for human activity monitoring, intelligent transportation systems, visual perception and robotic systems. Part II (LNCS 8888) comprises topics such as computational bioimaging , recognition, computer vision, applications, face processing and recognition, virtual reality, and the poster sessions.

Download or read book Holistic Scene Understanding and Goal directed Multi agent Event Parsing written by Yixin Chen and published by . This book was released on 2022 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humans, even young infants, are adept at perceiving and understanding complex indoor scenes and events. Holistic scene understanding involves abundant aspects, including 3D human pose, objects, physical relations, functionality, etc. Besides the physical and functional configuration of the scene, interpreting human actions and goal-oriented tasks is a higher-level goal, and requires reasoning about the complex structures in activities along the temporal dimension. When multiple people are in the scene, collaborations and communications inevitably happen, in both verbal and non-verbal forms. Despite the recent remarkable progress in artificial intelligence, building an intelligent machine with human-like perception and reasoning capability for the aforementioned complex tasks remains a significant and challenging problem.In this dissertation, we study the holistic scene understanding and goal-directed multi-agent event parsing by identifying the critical problems from various perspectives. We first propose a framework for holistic 3D scene parsing and human pose estimation, with a particular focus on human-object interaction and physical commonsense reasoning. Contact information is critical in modeling the fine-grained human-object relations from visual cues. We demonstrate how to extract meaningful contact information from 2D images and its usefulness in 3D human pose estimation. Then we introduce our efforts in understanding goal-directed actions, concurrent multi-tasks, and collaborations among multi-agents. Finally, we investigate the two typical types of human communications by proposing a spatial and temporal model for shared attention and examining the power of both language and gesture under the embodied reference setting.

Download or read book Human Activity and Behavior Analysis Advances in computer vision and sensors written by Md. Atiqur Rahman Ahad and published by . This book was released on 2023-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Human Activity and Behavior Analysis relates to the field of vision and sensor-based human action or activity and behavior analysis and recognition. The book includes a series of methodologies, surveys, relevant datasets, challenging applications, ideas, and future prospects. The book discusses topics such as action recognition, action understanding, gait analysis, gesture recognition, behavior analysis, emotion and affective computing, and related areas. This volume focuses on two main subject areas: Movement and Sensors, and Sports Activity Analysis. The editors are experts in these arenas and the contributing authors are drawn from high-impact research groups around the world. This book will be of great interest to academics, students, and professionals working and researching in the field of human activity and behavior analysis"--

Download or read book Computer Analysis of Human Behavior written by Albert Ali Salah and published by Springer Science & Business Media. This book was released on 2011-10-07 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad survey of advanced pattern recognition techniques for human behavior analysis. Clearly structured, the book begins with concise coverage of the major concepts, before introducing the most frequently used techniques and algorithms in detail, and then discussing examples of real applications. Features: contains contributions from an international selection of experts in the field; presents a thorough introduction to the fundamental topics of human behavior analysis; investigates methods for activity recognition, including gait and posture analysis, hand gesture analysis, and semantics of human behavior in image sequences; provides an accessible psychological treatise on social signals for the analysis of social behaviors; discusses voice and speech analysis, combined audiovisual cues, and social interactions and group dynamics; examines applications in different research fields; each chapter concludes with review questions, a summary of the topics covered, and a glossary.

Download or read book Big Visual Data Analysis written by Chen Chen and published by Springer. This book was released on 2016-02-24 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an overview of traditional big visual data analysis approaches and provides state-of-the-art solutions for several scene comprehension problems, indoor/outdoor classification, outdoor scene classification, and outdoor scene layout estimation. It is illustrated with numerous natural and synthetic color images, and extensive statistical analysis is provided to help readers visualize big visual data distribution and the associated problems. Although there has been some research on big visual data analysis, little work has been published on big image data distribution analysis using the modern statistical approach described in this book. By presenting a complete methodology on big visual data analysis with three illustrative scene comprehension problems, it provides a generic framework that can be applied to other big visual data analysis tasks.

Download or read book Human Activity Recognition and Prediction written by Yun Fu and published by Springer. This book was released on 2016-01-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a unique view of human activity recognition, especially fine-grained human activity structure learning, human-interaction recognition, RGB-D data based action recognition, temporal decomposition, and causality learning in unconstrained human activity videos. The techniques discussed give readers tools that provide a significant improvement over existing methodologies of video content understanding by taking advantage of activity recognition. It links multiple popular research fields in computer vision, machine learning, human-centered computing, human-computer interaction, image classification, and pattern recognition. In addition, the book includes several key chapters covering multiple emerging topics in the field. Contributed by top experts and practitioners, the chapters present key topics from different angles and blend both methodology and application, composing a solid overview of the human activity recognition techniques.

Download or read book Human Factors in Transportation written by Katie Plant and Gesa Praetorius and published by AHFE International. This book was released on 2022-07-24 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human Factors in Transportation Proceedings of the 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022), July 24–28, 2022, New York, USA

Download or read book Semantic Analysis and Understanding of Human Behavior in Video Streaming written by Alberto Amato and published by Springer Science & Business Media. This book was released on 2012-09-18 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semantic Analysis and Understanding of Human Behaviour in Video Streaming investigates the semantic analysis of the human behaviour captured by video streaming, and introduces both theoretical and technological points of view. Video analysis based on the semantic content is in fact still an open issue for the computer vision research community, especially when real-time analysis of complex scenes is concerned. This book explores an innovative, original approach to human behaviour analysis and understanding by using the syntactical symbolic analysis of images and video streaming described by means of strings of symbols. A symbol is associated to each area of the analyzed scene. When a moving object enters an area, the corresponding symbol is appended to the string describing the motion. This approach allows for characterizing the motion of a moving object with a word composed by symbols. By studying and classifying these words we can categorize and understand the various behaviours. The main advantage of this approach lies in the simplicity of the scene and motion descriptions so that the behaviour analysis will have limited computational complexity due to the intrinsic nature both of the representations and the related operations used to manipulate them. Besides, the structure of the representations is well suited for possible parallel processing, thus allowing for speeding up the analysis when appropriate hardware architectures are used. A new methodology for design systems for hierarchical high semantic level analysis of video streaming in narrow domains is also proposed. Guidelines to design your own system are provided in this book. Designed for practitioners, computer scientists and engineers working within the fields of human computer interaction, surveillance, image processing and computer vision, this book can also be used as secondary text book for advanced-level students in computer science and engineering.

Download or read book Video Analytics for Business Intelligence written by Caifeng Shan and published by Springer Science & Business Media. This book was released on 2012-04-07 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Closed Circuit TeleVision (CCTV) cameras have been increasingly deployed pervasively in public spaces including retail centres and shopping malls. Intelligent video analytics aims to automatically analyze content of massive amount of public space video data and has been one of the most active areas of computer vision research in the last two decades. Current focus of video analytics research has been largely on detecting alarm events and abnormal behaviours for public safety and security applications. However, increasingly CCTV installations have also been exploited for gathering and analyzing business intelligence information, in order to enhance marketing and operational efficiency. For example, in retail environments, surveillance cameras can be utilised to collect statistical information about shopping behaviour and preference for marketing (e.g., how many people entered a shop; how many females/males or which age groups of people showed interests to a particular product; how long did they stay in the shop; and what are the frequent paths), and to measure operational efficiency for improving customer experience. Video analytics has the enormous potential for non-security oriented commercial applications. This book presents the latest developments on video analytics for business intelligence applications. It provides both academic and commercial practitioners an understanding of the state-of-the-art and a resource for potential applications and successful practice.