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83 results on '"rigid object"'

1. Enumerating families of clusters in type 픸̃.

Author

Maresca, Ray and Proskura, Nikolas

Subjects
*TRIANGULATION
Abstract

In this paper, we will place clusters in type 픸̃ (equivalently triangulations of an annulus) into infinite families parametrized by winding numbers of certain arcs in the corresponding triangulation. We will count how many such families there are and provide an algebraic description of these families in terms of the corresponding cluster category. [ABSTRACT FROM AUTHOR]

Published
2024
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2. 多尺度特征融合的点云配准算法研究.

Author

易见兵, 彭 鑫, 曹 锋, 李 俊, and 谢唯嘉

Abstract

Copyright of Journal of Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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3. Object Detection in Images by Verifying Corners at Predicted Positions

Author

Arslan, Abdullah N., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Silhavy, Radek, editor, Silhavy, Petr, editor, and Prokopova, Zdenka, editor

Published
2023
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4. Survey of Rigid Object Pose Estimation Algorithms Based on Deep Learning

Author

GUO Nan, LI Jingyuan, REN Xi

Subjects
computer vision, rigid object, pose estimation, pose optimization, deep learning, Computer software, QA76.75-76.765, Technology (General), T1-995
Abstract

Rigid object pose estimation aims to obtain 3D translation and 3D rotation information of the rigid object in the camera coordinate system,which plays an important role in rapidly developing fields such as autonomous driving,robotics and augmented reality.The representative papers on rigid object pose estimation based on deep learning from 2017 to 2021 are summarized and analyzed.The rigid object pose estimation methods are divided into coordinate-based,keypoints-based and template-based me-thods.The rigid object pose estimation task is divided into four sub-tasks:image preprocessing,spatial mapping or feature ma-tching,pose recovery,and pose optimization.The subtask realization of each method and its advantages and problems are introduced in detail.The challenges of rigid object pose estimation are analyzed,and the existing solutions and their advantages and disadvantages are summarized.Based on the rigid object pose estimation method,the articulated object and deformable object pose estimation are analyzed.The common datasets and performance evaluation indexes of rigid object pose estimation are introduced,and the performance of existing methods on common datasets is compared and analyzed.Finally,the future research directions of pose tracking and class rigid object pose estimation are prospected.

Published
2023
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5. Motion Trajectory Grouping for Human Head Gestures Related to Facial Expressions

Author

Kocoń, Maja, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Paszynski, Maciej, editor, Kranzlmüller, Dieter, editor, Krzhizhanovskaya, Valeria V., editor, Dongarra, Jack J., editor, and Sloot, Peter M. A., editor

Published
2021
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6. A Fast Adaptive Multi-Scale Kernel Correlation Filter Tracker for Rigid Object.

Author

Zheng, Kaiyuan, Zhang, Zhiyong, and Qiu, Changzhen

Subjects
*ARTIFICIAL neural networks, *TRACKING algorithms, *AIR filters, *TRACKING radar, *DEEP learning
Abstract

The efficient and accurate tracking of a target in complex scenes has always been one of the challenges to tackle. At present, the most effective tracking algorithms are basically neural network models based on deep learning. Although such algorithms have high tracking accuracy, the huge number of parameters and computations in the network models makes it difficult for such algorithms to meet the real-time requirements under limited hardware conditions, such as embedded platforms with small size, low power consumption and limited computing power. Tracking algorithms based on a kernel correlation filter are well-known and widely applied because of their high performance and speed, but when the target is in a complex background, it still can not adapt to the target scale change and occlusion, which will lead to template drift. In this paper, a fast multi-scale kernel correlation filter tracker based on adaptive template updating is proposed for common rigid targets. We introduce a simple scale pyramid on the basis of Kernel Correlation Filtering (KCF), which can adapt to the change in target size while ensuring the speed of operation. We propose an adaptive template updater based on the Mean of Cumulative Maximum Response Values (MCMRV) to alleviate the problem of template drift effectively when occlusion occurs. Extensive experiments have demonstrated the effectiveness of our method on various datasets and significantly outperformed other state-of-the-art methods based on a kernel correlation filter. [ABSTRACT FROM AUTHOR]

Published
2022
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7. A Fast Adaptive Multi-Scale Kernel Correlation Filter Tracker for Rigid Object

Author

Kaiyuan Zheng, Zhiyong Zhang, and Changzhen Qiu

Subjects
target tracking, kernel correlation filter, adaptive template updater, rigid object, Chemical technology, TP1-1185
Abstract

The efficient and accurate tracking of a target in complex scenes has always been one of the challenges to tackle. At present, the most effective tracking algorithms are basically neural network models based on deep learning. Although such algorithms have high tracking accuracy, the huge number of parameters and computations in the network models makes it difficult for such algorithms to meet the real-time requirements under limited hardware conditions, such as embedded platforms with small size, low power consumption and limited computing power. Tracking algorithms based on a kernel correlation filter are well-known and widely applied because of their high performance and speed, but when the target is in a complex background, it still can not adapt to the target scale change and occlusion, which will lead to template drift. In this paper, a fast multi-scale kernel correlation filter tracker based on adaptive template updating is proposed for common rigid targets. We introduce a simple scale pyramid on the basis of Kernel Correlation Filtering (KCF), which can adapt to the change in target size while ensuring the speed of operation. We propose an adaptive template updater based on the Mean of Cumulative Maximum Response Values (MCMRV) to alleviate the problem of template drift effectively when occlusion occurs. Extensive experiments have demonstrated the effectiveness of our method on various datasets and significantly outperformed other state-of-the-art methods based on a kernel correlation filter.

Published
2022
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8. Introduction

Author

Altobelli, Alessandro, Ferre, Manuel, Series editor, Ernst, Marc O., Series editor, Wing, Alan, Series editor, Avizzano, Carlo A., Editorial board, Azorin, José M., Editorial board, Ballesteros, Soledad, Editorial board, Bergamasco, Massimo, Editorial board, Bicchi, Antonio, Editorial board, Buss, Martin, Editorial board, van Erp, Jan, Editorial board, Harders, Matthias, Editorial board, Harwin, William S., Editorial board, Hayward, Vincent, Editorial board, Ibarra, Juan M., Editorial board, Kappers, Astrid M. L., Editorial board, Kheddar, Abderrahmane, Editorial board, Otaduy, Miguel A., Editorial board, Peer, Angelika, Editorial board, Perret, Jerome, Editorial board, Thonnard, Jean-Louis, Editorial board, and Altobelli, Alessandro

Published
2016
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10. Fast Segmentation of Sparse 3D Point Trajectories Using Group Theoretical Invariants

Author

Zografos, Vasileios, Lenz, Reiner, Ringaby, Erik, Felsberg, Michael, Nordberg, Klas, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Cremers, Daniel, editor, Reid, Ian, editor, Saito, Hideo, editor, and Yang, Ming-Hsuan, editor

Published
2015
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13. Accuracy of Trajectories Estimation in a Driver-Assistance Context

Author

Khan, Waqar, Klette, Reinhard, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Huang, Fay, editor, and Sugimoto, Akihiro, editor

Published
2014
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14. 3D Pose Refinement Using Rendering and Texture-Based Matching

Author

Zabulis, Xenophon, Lourakis, Manolis I. A., Stefanou, Stefanos S., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Chmielewski, Leszek J., editor, Kozera, Ryszard, editor, Shin, Bok-Suk, editor, and Wojciechowski, Konrad, editor

Published
2014
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15. A Multiplication Formula for the Modified Caldero-Chapoton Map.

Author

Pescod, David

Abstract

A frieze in the modern sense is a map from the set of objects of a triangulated category C to some ring. A frieze X is characterised by the property that if τx→y→x is an Auslander-Reiten triangle in C, then X(τx)X(x)-X(y)=1. The canonical example of a frieze is the (original) Caldero-Chapoton map, which send objects of cluster categories to elements of cluster algebras. Holm and Jørgensen (Nagoya Math J 218:101-124, 2015; Bull Sci Math 140:112-131, 2016), the notion of generalised friezes is introduced. A generalised frieze X′ has the more general property that X′(τx)X′(x)-X′(y)∈{0,1}. The canonical example of a generalised frieze is the modified Caldero-Chapoton map, also introduced in Holm and Jørgensen (2015, 2016). Here, we develop and add to the results in Holm and Jørgensen (2016). We define Condition F for two maps α and β in the modified Caldero-Chapoton map, and in the case when C is 2-Calabi-Yau, we show that it is sufficient to replace a more technical “frieze-like” condition from Holm and Jørgensen (2016). We also prove a multiplication formula for the modified Caldero-Chapoton map, which significantly simplifies its computation in practice. [ABSTRACT FROM AUTHOR]

Published
2018
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16. An Evaluation of Open Source Physics Engines for Use in Virtual Reality Assembly Simulations

Author

Hummel, Johannes, Wolff, Robin, Stein, Tobias, Gerndt, Andreas, Kuhlen, Torsten, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Bebis, George, editor, Boyle, Richard, editor, Parvin, Bahram, editor, Koracin, Darko, editor, Fowlkes, Charless, editor, Wang, Sen, editor, Choi, Min-Hyung, editor, Mantler, Stephan, editor, Schulze, Jürgen, editor, Acevedo, Daniel, editor, Mueller, Klaus, editor, and Papka, Michael, editor

Published
2012
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19. Scene Understanding through Autonomous Interactive Perception

Author

Bergström, Niklas, Ek, Carl Henrik, Björkman, Mårten, Kragic, Danica, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Crowley, James L., editor, Draper, Bruce A., editor, and Thonnat, Monique, editor

Published
2011
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20. Multi-body Segmentation and Motion Number Estimation via Over-Segmentation Detection

Author

Pan, Guodong, Wong, Kwan-Yee Kenneth, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Koch, Reinhard, editor, and Huang, Fay, editor

Published
2011
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21. An Analysis of the Road Signs Classification Based on the Higher-Order Singular Value Decomposition of the Deformable Pattern Tensors

Author

Cyganek, Bogusław, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Blanc-Talon, Jacques, editor, Bone, Don, editor, Philips, Wilfried, editor, Popescu, Dan, editor, and Scheunders, Paul, editor

Published
2010
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22. Low-cost and Retrofittable Pose Estimation of Rigid Objects Using Infrared Markers.

Author

Lengenfelder, Christian, Horne, Matthias, Hammer, Jan Hendrik, Voit, Michael, and Beyerer, Jürgen

Abstract

We present a system for the 6-DOF pose estimation of rigid objects which can be used for tool tracking in manual manufacturing applications like quality assurance or assembly assistance. To be practical and widely adaptable, the system must be low-cost, passive, impact resistant, retrofittable and applicable to arbitrary rigid objects. Therefore we attach circular markers of retroreflective self-adhesive film to relevant objects. A stereo camera system with IR illumination tracks the 3D positions of these markers and uses known marker constellations to estimate the object pose. Additionally a simple teach-in procedure which learns marker constellations of new objects is presented. [ABSTRACT FROM AUTHOR]

Published
2018
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23. Vehicle Tracking Using Geometric Features

Author

Deboeverie, Francis, Teelen, Kristof, Veelaert, Peter, Philips, Wilfried, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Blanc-Talon, Jacques, editor, Philips, Wilfried, editor, Popescu, Dan, editor, and Scheunders, Paul, editor

Published
2009
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28. Introduction

Author

Bons, Paul D., Jessell, Mark W., Koehn, Daniel, Bhattacharji, S., editor, Neugebauer, H. J., editor, Reitner, J., editor, Stüwe, K., editor, Friedman, G. M., editor, Seilacher, A., editor, Bons, Paul D. D., editor, Koehn, Daniel, editor, and Jessell, Mark W., editor

Published
2008
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29. View Point Tracking of Rigid Objects Based on Shape Sub-manifolds

Author

Gosch, Christian, Fundana, Ketut, Heyden, Anders, Schnörr, Christoph, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Forsyth, David, editor, Torr, Philip, editor, and Zisserman, Andrew, editor

Published
2008
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30. Robust 3D Pose Estimation and Efficient 2D Region-Based Segmentation from a 3D Shape Prior

Author

Dambreville, Samuel, Sandhu, Romeil, Yezzi, Anthony, Tannenbaum, Allen, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Forsyth, David, editor, Torr, Philip, editor, and Zisserman, Andrew, editor

Published
2008
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33. Robust 3D Segmentation of Multiple Moving Objects Under Weak Perspective

Author

Hajder, Levente, Chetverikov, Dmitry, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Vidal, René, editor, Heyden, Anders, editor, and Ma, Yi, editor

Published
2007
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34. Real-Time Automatic Kinematic Model Building for Optical Motion Capture Using a Markov Random Field

Author

Rajko, Stjepan, Qian, Gang, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Lew, Michael, editor, Sebe, Nicu, editor, Huang, Thomas S., editor, and Bakker, Erwin M., editor

Published
2007
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35. A Flexible Framework for Highly-Modular Surgical Simulation Systems

Author

Tuchschmid, S., Grassi, M., Bachofen, D., Früh, P., Thaler, M., Székely, G., Harders, M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Harders, Matthias, editor, and Székely, Gábor, editor

Published
2006
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36. Spatiotemporal Data Mining with Cellular Automata

Author

Fu, Karl, Cai, Yang, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Alexandrov, Vassil N., editor, van Albada, Geert Dick, editor, Sloot, Peter M. A., editor, and Dongarra, Jack, editor

Published
2006
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38. Neuro-Fuzzy Hybrid Position/Force Control for a Space Robot with Flexible Dual-Arms

Author

Sun, Fuchun, Zhang, Hao, Wu, Hao, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Yin, Fu-Liang, editor, Wang, Jun, editor, and Guo, Chengan, editor

Published
2004
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39. Keyframe Selection for Camera Motion and Structure Estimation from Multiple Views

Author

Thormählen, Thorsten, Broszio, Hellward, Weissenfeld, Axel, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Pajdla, Tomás, editor, and Matas, Jiří, editor

Published
2004
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40. An Algorithm for Segmenting Gaseous Objects on Images

Author

Kim, Sung-Min, Kim, Wonha, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Raidl, Günther R., editor, Cagnoni, Stefano, editor, Branke, Jürgen, editor, Corne, David Wolfe, editor, Drechsler, Rolf, editor, Jin, Yaochu, editor, Johnson, Colin G., editor, Machado, Penousal, editor, Marchiori, Elena, editor, Rothlauf, Franz, editor, Smith, George D., editor, and Squillero, Giovanni, editor

Published
2004
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