Segmentation d'objets mobiles par fusion RGB-D et invariance colorimétrique PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Segmentation d'objets mobiles par fusion RGB-D et invariance colorimétrique PDF full book. Access full book title Segmentation d'objets mobiles par fusion RGB-D et invariance colorimétrique by Julian Murgia. Download full books in PDF and EPUB format.
Author: Julian Murgia
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
Get Book Here
Book Description
Cette thèse s'inscrit dans un cadre de vidéo-surveillance, et s'intéresse plus précisément à la détection robustesd'objets mobiles dans une séquence d'images. Une bonne détection d'objets mobiles est un prérequis indispensableà tout traitement appliqué à ces objets dans de nombreuses applications telles que le suivi de voitures ou depersonnes, le comptage des passagers de transports en commun, la détection de situations dangereuses dans desenvironnements spécifiques (passages à niveau, passages piéton, carrefours, etc.), ou encore le contrôle devéhicules autonomes. Un très grand nombre de ces applications utilise un système de vision par ordinateur. Lafiabilité de ces systèmes demande une robustesse importante face à des conditions parfois difficiles souventcausées par les conditions d'illumination (jour/nuit, ombres portées), les conditions météorologiques (pluie, vent,neige) ainsi que la topologie même de la scène observée (occultations). Les travaux présentés dans cette thèsevisent à améliorer la qualité de détection d'objets mobiles en milieu intérieur ou extérieur, et à tout moment de lajournée.Pour ce faire, nous avons proposé trois stratégies combinables :i) l'utilisation d'invariants colorimétriques et/ou d'espaces de représentation couleur présentant des propriétésinvariantes ;ii) l'utilisation d'une caméra stéréoscopique et d'une caméra active Microsoft Kinect en plus de la caméra couleurafin de reconstruire l'environnement 3D partiel de la scène, et de fournir une dimension supplémentaire, à savoirune information de profondeur, à l'algorithme de détection d'objets mobiles pour la caractérisation des pixels ;iii) la proposition d'un nouvel algorithme de fusion basé sur la logique floue permettant de combiner les informationsde couleur et de profondeur tout en accordant une certaine marge d'incertitude quant à l'appartenance du pixel aufond ou à un objet mobile.
Author: Julian Murgia
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
Get Book Here
Book Description
Cette thèse s'inscrit dans un cadre de vidéo-surveillance, et s'intéresse plus précisément à la détection robustesd'objets mobiles dans une séquence d'images. Une bonne détection d'objets mobiles est un prérequis indispensableà tout traitement appliqué à ces objets dans de nombreuses applications telles que le suivi de voitures ou depersonnes, le comptage des passagers de transports en commun, la détection de situations dangereuses dans desenvironnements spécifiques (passages à niveau, passages piéton, carrefours, etc.), ou encore le contrôle devéhicules autonomes. Un très grand nombre de ces applications utilise un système de vision par ordinateur. Lafiabilité de ces systèmes demande une robustesse importante face à des conditions parfois difficiles souventcausées par les conditions d'illumination (jour/nuit, ombres portées), les conditions météorologiques (pluie, vent,neige) ainsi que la topologie même de la scène observée (occultations). Les travaux présentés dans cette thèsevisent à améliorer la qualité de détection d'objets mobiles en milieu intérieur ou extérieur, et à tout moment de lajournée.Pour ce faire, nous avons proposé trois stratégies combinables :i) l'utilisation d'invariants colorimétriques et/ou d'espaces de représentation couleur présentant des propriétésinvariantes ;ii) l'utilisation d'une caméra stéréoscopique et d'une caméra active Microsoft Kinect en plus de la caméra couleurafin de reconstruire l'environnement 3D partiel de la scène, et de fournir une dimension supplémentaire, à savoirune information de profondeur, à l'algorithme de détection d'objets mobiles pour la caractérisation des pixels ;iii) la proposition d'un nouvel algorithme de fusion basé sur la logique floue permettant de combiner les informationsde couleur et de profondeur tout en accordant une certaine marge d'incertitude quant à l'appartenance du pixel aufond ou à un objet mobile.
Author: Maurizio Rossi
Publisher:
ISBN: 9788838761379
Category : Architecture
Languages : en
Pages : 325
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : High technology
Languages : en
Pages : 160
Get Book Here
Book Description
Author: Claudio Oleari
Publisher: John Wiley & Sons
ISBN: 1118894448
Category : Science
Languages : en
Pages : 521
Get Book Here
Book Description
Colour is a sensation and as such it is a subjective and incommunicable quantity. Colour measurement is possible because we can create a correspondence between colour sensations and the light radiations that stimulate them. This correspondence concerns the physics of light radiation, the physiology of the visual process and the psychology of vision. Historically, in parallel to standard colorimetry, systems for colour ordering have been developed that allow colour specifications in a very practical and concrete way, based on the direct vision of material colour samples arranged in colour atlases. Colour-ordering systems are sources of knowledge of colour vision, which integrate standard colorimetry. Standard Colorimetry: Definitions, Algorithms and Software: Describes physiology and psychophysics useful to understand colorimetry Considers all the photometric and colorimetric systems standardized by CIE (XYZ, CIELAB, CIELUV, LMS) Presents colorimetric instrumentation in order to guide the reader toward colorimetric practice Discusses colorimetric computation to understand the meaning of numerical colour specification Considers colorimetry in colour syntheses and in imaging colour reproduction Includes ready-to-use, freely-available software, “Colorimetric eXercise”, which has multiple toolboxes dedicated to displaying CIE systems, atlases, any colour and its whole numerical specification colour-vision phenomena and tests Standard Colorimetry: Definitions, Algorithms and Software is an accessible and valuable resource for students, lecturers, researchers and laboratory technicians in colour science and image technology. Follow this link to download the free software “Colorimetric eXercise”: http://booksupport.wiley.com/ Standard Colorimetry: Definitions, Algorithms and Software is published in partnership with the Society of Dyers and Colourists (SDC). Find out more at www.wiley.com/go/sdc
Author: Lorenzo Tassi
Publisher:
ISBN: 9788178953434
Category :
Languages : en
Pages : 491
Get Book Here
Book Description
This volume is intended to provide a general overview of principles and practical applications of various areas of analytical chemistry, in particular (but not exclusively) in the contexts of environmental and cultural heritages conservation. It is only since the 80 s that the production of more sensible recording instruments, the miniaturization of analytical devices and the huge growth of computational power, have become widely accessible and diffused for routine investigations. Recent advances in the use and applications of uncommon techniques and relevant working methodologies, e.g. synchrotron radiation, will probably exert a permanent influence in future studies. The development of hardware and software has awakened the interest in exploration of huge datasets, e.g. instrumental signals and images, and nowadays is an irreplaceable tool in defining correlations between objects, systems, mathematical variables, and so on. The result has been a great proliferation of research studies and applications in all the fields, so that the Analytical Chemistry has acquired a major status in the broad area of Applied Sciences. In fact, in all of these great developments, the analytical chemists have played, and still play, a pivotal role. During the past three decades, just the time that we have been active in research and teaching activities, we had the fortunate and exclusive opportunity to assist to the quite general and spectacular transition from the macro-branch to micro-branch of the subject area. Thus, we have the great responsibility towards the new generations of scientists to stimulate interests and to provide guidance about micro-analytical chemistry, both in lecturing and in research. It is our opinion that analytical chemistry has been the mainmast in every chemical career of the past, and we believe that the rigid discipline of conducting micro-analytical experiments is an essential part of the training of every new chemist. All around the world, analytical chemistry is developing micro- and ultra-micro-analysis systems to such an extent that it is impossible to see, with the naked eye, the minute samples sent in for analysis. These highly performing methodologies make possible micro-sampling of materials and substrates both for destructive or not destructive analysis, without causing perceptible deterioration of the object or the system under study. Obviously, the acquisition of the best knowledge and competences about techniques and working methodologies by the analysts in manipulating micro-samples, are only the essential prerequisites in order to gain the best results, while laboratory protocols and good-laboratory-practice must be perfectly attained during the operations. Probably, these concepts are the leit-motif of the entire book. We have assumed the responsibility for the general outline of the book. We hope to have successfully assembled an interesting and versatile mix of various ingredients such as peoples and machines, ideas and results, techniques and methodologies, experiments and theories, materials and simulated models: a true cocktail provided by different chemists acting in very different analytical fields. The book is formally divided into three sections, covering topics about : - general aspects of analytical chemistry (chapters 1-5, whose key words should be : traceability in chemical measurements, sequential injection analysis, NMR and HR-MAS, electron transfer in pesticides, multivariate analysis of analytical signals); - applications in the environmental context (chapters 6-8, specific arguments are : microwave techniques for sample manipulation, thermal methods of analysis, continuous and semi-continuous analytical methods in paleoclimatic studies); - some applications in the cultural heritage and conservation studies (chapters 9-17, treating stone cleaning and conservation, colour measurement on paintings, MS and GC-MS analytical procedures for painting analysis, salt weathering, synchrotron radiation and lasers applications to cultural heritages, investigations of historical glasses and papers, and more than this). In some cases this subdivision was artificially forced and, therefore, it was not rigidly followed. In fact some chapters, for their not-at-all specific content, could be placed everywhere along the chapter sequence, disregarding the apparent pertinence and the actual location in one section. With this final aim in mind, each contributor was requested to present the state of the art in his field, by introducing and applying contemporary statements of topics that he considers relevant to his research field and for the editorial assignment. In the preliminary call and in the subsequent editorial coordination of this material, the primary intent has been to avoid, as much as possible, unnecessary overlapping of the various chapters. Some chapters, however, have been written to provide an historical development and a survey of recent exciting advances. Their particular aim is to outline the basic principles, to illustrate such success in applicative studies as is possible with current methods, and to indicate their potential scope and present limitations. Accordingly, there is no attempt to provide anything in the nature of an encyclopaedic coverage, but rather, after a general survey of analytical studies and applications, each specialist or co-authorship has emphasized what he regards as the essential bases and recent developments of his topics. Finally, the Editors wish to address their gratitude to the Authors of the chapters. As in all works involving multiple authors, a great deal of the success of the venture depends upon their cooperation, as well as upon the prompt advising by publisher staff. This book is no exception to these rules. Authors contributions required much of their valuable time, which they must have sparingly withdrawn from their research, teaching and many other related activities. Furthermore, it was a particular pleasure for the Editors to be able to call upon recognized and reputed scientists, and, between them, many young research postgraduate students as contributors. As research fellows, or former research fellows, we are delighted to see their enthusiastic participation and their excellent research targets, so that the book exhibits, we hope, a tastefully arrangement. The efforts of these Authors should be commended. A special thank is extended to Transworld Research Nertwork for its fine production of this series in Scientific Communication.
Author: Andrew F. Monk
Publisher: Academic Press
ISBN: 1483276759
Category : Reference
Languages : en
Pages : 312
Get Book Here
Book Description
Fundamentals of Human-Computer Interaction aims to sensitize the systems designer to the problems faced by the user of an interactive system. The book grew out of a course entitled ""The User Interface: Human Factors for Computer-based Systems"" which has been run annually at the University of York since 1981. This course has been attended primarily by systems managers from the computer industry. The book is organized into three parts. Part One focuses on the user as processor of information with studies on visual perception; extracting information from printed and electronically presented text; and human memory. Part Two on the use of behavioral data includes studies on how and when to collect behavioral data; and statistical evaluation of behavioral data. Part Three deals with user interfaces. The chapters in this section cover topics such as work station design, user interface design, and speech communication. It is hoped that this book will be read by systems engineers and managers concerned with the design of interactive systems as well as graduate and undergraduate computer science students. The book is also suitable as a tutorial text for certain courses for students of Psychology and Ergonomics.
Author: Bertrand Kerautret
Publisher: Springer Nature
ISBN: 3030764230
Category : Computers
Languages : en
Pages : 173
Get Book Here
Book Description
This book constitutes the thoroughly refereed post-workshop proceedings of the Third International Workshop on Reproducible Research in Pattern Recognition, RRPR 2021, held as a virtual event, in January 2021. The 8 revised full papers, presented together with 6 short papers, were carefully reviewed and selected from 18 submissions. The papers were organized into three main categories. The first contributions focused on reproducible research frameworks. The second category focused on reproducible research results and the last category included ICPR companion papers describing implementation and details that are an absolute requirement for reproducibility.
Author: Horst Bunke
Publisher: Springer
ISBN: 3540768319
Category : Technology & Engineering
Languages : en
Pages : 251
Get Book Here
Book Description
A sharp increase in the computing power of modern computers has triggered the development of powerful algorithms that can analyze complex patterns in large amounts of data within a short time period. Consequently, it has become possible to apply pattern recognition techniques to new tasks. The main goal of this book is to cover some of the latest application domains of pattern recognition while presenting novel techniques that have been developed or customized in those domains.
Author: Alessandro E.P. Villa
Publisher: Springer
ISBN: 3319447785
Category : Computers
Languages : en
Pages : 585
Get Book Here
Book Description
The two volume set, LNCS 9886 + 9887, constitutes the proceedings of the 25th International Conference on Artificial Neural Networks, ICANN 2016, held in Barcelona, Spain, in September 2016. The 121 full papers included in this volume were carefully reviewed and selected from 227 submissions. They were organized in topical sections named: from neurons to networks; networks and dynamics; higher nervous functions; neuronal hardware; learning foundations; deep learning; classifications and forecasting; and recognition and navigation. There are 47 short paper abstracts that are included in the back matter of the volume.
Author: Bogdan Ionescu
Publisher: Springer Science & Business Media
ISBN: 3319056964
Category : Computers
Languages : en
Pages : 279
Get Book Here
Book Description
This book presents a thorough overview of fusion in computer vision, from an interdisciplinary and multi-application viewpoint, describing successful approaches, evaluated in the context of international benchmarks that model realistic use cases. Features: examines late fusion approaches for concept recognition in images and videos; describes the interpretation of visual content by incorporating models of the human visual system with content understanding methods; investigates the fusion of multi-modal features of different semantic levels, as well as results of semantic concept detections, for example-based event recognition in video; proposes rotation-based ensemble classifiers for high-dimensional data, which encourage both individual accuracy and diversity within the ensemble; reviews application-focused strategies of fusion in video surveillance, biomedical information retrieval, and content detection in movies; discusses the modeling of mechanisms of human interpretation of complex visual content.
