This book introduces a new strategy for mobile robot navigation. The complete navigation strategy is based on local landmark detection. However, the work developed just shows the local navigation results. In this context, local artificial potential fields are used as a way to attract the mobile robot towards a local goal that can act as a passage point and a featured landmark. In order to acomplish with the desired objective, simple perception system and reactive control behaviours were implemented and tested. Concretely, a single on-robot camera system was used to infer the closer robot environment where free aproaching path was computed. Moreover, the proposed control strategy is based on on-line model predictive control techniques where only short prediction horizons are considered for dealing with reactive behaviours and dynamic environments.
Robust Methods for Dense Monocular Non-Rigid 3D Reconstruction and Alignment of Point Clouds ab 79.99 € als Taschenbuch: 1st ed. 2020. Aus dem Bereich: Bücher, Ratgeber, Computer & Internet,
Erscheinungsdatum: 15.12.2010, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Deformable Surface 3D Reconstruction from Monocular Images, Autor: Salzmann, Mathieu // Salzmann, Matthieu // Fua, Pascal, Verlag: Morgan & Claypool Publishers, Sprache: Englisch, Schlagworte: COMPUTERS // Computer Graphics, Rubrik: Informatik, Seiten: 114, Informationen: Paperback, Gewicht: 230 gr, Verkäufer: averdo
Erscheinungsdatum: 31.08.2005, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Monocular Model-Based 3D Tracking of Rigid Objects, Titelzusatz: A Survey, Autor: Lepetit, Vincent // Fua, Pascal, Verlag: Now Publishers Inc, Sprache: Englisch, Schlagworte: COMPUTERS // Computer Vision & Pattern Recognition // Maschinelles Sehen // Bildverstehen, Rubrik: Informatik, Seiten: 104, Informationen: Paperback, Gewicht: 172 gr, Verkäufer: averdo
This manuscript addresses the problem of obstacle avoidance for semi- and autonomous terrestrial platforms in dynamic and unknown environments. Based on monocular vision, it proposes a set of tools that continuously monitors the way forward, proving appropriate road information in real time. Taking into account the temporal coherence between consecutive frames, a new Dynamic Power Management methodology is proposed and applied to a robotic visual machine perception, which included a new environment observer method to optimize energy consumption used by a visual machine. A remarkable characteristic of these methodologies is its independence of the image acquiring system and of the robot itself. This real-time perception system has been evaluated from different test-banks and also from real data obtained by two intelligent platforms. In semi-autonomous tasks, tests were conducted at speeds above 100 Km/h. Autonomous displacements were also carried out successfully.
MonocularFernglas aus Beständen der schwedischen Armee zum Teil von namhaften Herstellern wie CarlZeiss Jena Hensold etc. Einstellung der Sehstärke möglich. Mit Strichplatte zur Entfernungsmessung. 6fache Vergrößerung 30mm. Es handelt sich um einen gebrauchten Artikel. Solange die Funktion des Artikels gegeben ist besteht kein Reklamationsgrund. Herstellerwünsche können leider nicht berücksichtigt werden. Gewicht ca. 350 g
This work proposes novel approaches for object tracking in challenging scenarios like severe occlusion, deteriorated vision and long range multi-object reidentiﬁcation. All these solutions are only based on image sequence captured by a monocular camera and do not require additional sensors. Experiments on standard benchmarks demonstrate an improved state-of-the-art performance of these approaches. Since all the presented approaches are smartly designed, they can run at a real-time speed.
This book presents a hardware architecture for the Simultaneous Localization And Mapping (SLAM) problem applied to embedded robots. The architecture is composed by highly specialized modules for robot localization and feature-based map building from images obtained directly from CMOS cameras in real time. The system is completely embedded on a Field-Programmable Gate Array (FPGA) device, where several hardware-orientated optimizations are exploited. The main modules of the architecture are the Extended Kalman Filter (EKF) and the feature detection system based on the SIFT (Scale Invariant Feature Transform) algorithm. Additionally, this book also presents basic concepts about mapping and state-of-the-art algorithms for SLAM with monocular and stereo vision.
Networked 3D virtual environments allow multiple users to interact with each other over the Internet. Users can share some sense of telepresence by remotely animating an avatar that represents them. However, avatar control may be tedious and still render user gestures poorly. This work aims at animating a user s avatar from real time 3D motion capture by monocular computer vision, thus allowing virtual telepresence to anyone using a personal computer with a webcam. The approach followed consists of registering a 3D articulated upper-body model to a video sequence. The first contribution of this work is a method of allocating computing iterations under real-time constrain that achieves optimal robustness and accuracy. The major issue for robust 3D tracking from monocular images is the 3D/2D ambiguities that result from the lack of depth information. As a second contribution, this work enhances particle filtering for 3D/2D registration under limited computation constrains with a number of heuristics, the contribution of which is demonstrated experimentally. A parameterization of the arm pose based on their end-effector is proposed to better model uncertainty in the depth direction.
Erscheinungsdatum: 18.07.2017, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Imperfection, Titelzusatz: The One-Eyed Child: My Life through Monocular Vision, Autor: Gale, Claire, Verlag: AuthorHouse, Sprache: Englisch, Schlagworte: BIOGRAPHY & AUTOBIOGRAPHY // Personal Memoirs, Rubrik: Belletristik // Biographien, Erinnerungen, Seiten: 112, Informationen: Paperback, Gewicht: 175 gr, Verkäufer: averdo
This monograph introduces novel responses to the different problems that arise when multiple robots need to execute a task in cooperation, each robot in the team having a monocular camera as its primary input sensor. Its central proposition is that a consistent perception of the world is crucial for the good development of any multi-robot application. The text focuses on the high-level problem of cooperative perception by a multi-robot system: the idea that, depending on what each robot sees and its current situation, it will need to communicate these things to its fellows whenever possible to share what it has found and keep updated by them in its turn. However, in any realistic scenario, distributed solutions to this problem are not trivial and need to be addressed from as many angles as possible.Distributed Consensus with Visual Perception in Multi-Robot Systems covers a variety of related topics such as:- distributed consensus algorithms,- data association and robustness problems,- convergence speed, and- cooperative mapping.The book first puts forward algorithmic solutions to these problems and then supports them with empirical validations working with real images. It provides the reader with a deeper understanding of the problems associated to the perception of the world by a team of cooperating robots with onboard cameras.Academic researchers and graduate students working with multi-robot systems, or investigating problems of distributed control or computer vision and cooperative perception will find this book of material assistance with their studies.