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Natural interaction with virtual objects using vision-based six DOF sphere tracking
2005
Proceedings of the 2005 ACM SIGCHI International Conference on Advances in computer entertainment technology - ACE '05
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We present a new TUI system that includes a passive optical tracking method to determine the six degree-offreedom (DOF) pose of a sphere in a real-time video stream, and then apply the pose to a virtual ...
We demonstrate the use of our TUI system to control virtual 3D objects in an interactive way, proving to be a useful tool for computer entertainment applications. ...
Although tracking errors do affect the usability of our method, a brief analysis of the errors can lead to a method for improving usability. ...
doi:10.1145/1178477.1178480
dblp:conf/ACMace/BradleyR05
fatcat:toi3a54q7zfabm2e4v2p56khiu
StereoSnakes: Contour Based Consistent Object Extraction for Stereo Images
2015
2015 IEEE International Conference on Computer Vision (ICCV)
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In this paper, we propose a contour based method which searches for consistent object contours instead of regions. ...
We also demonstrate in a few applications how our method can be used as a basic tool for stereo image editing. ...
We choose them according to a full coverage of related directions: stereo image segmentation, contour tracking, co-segmentation and video object extraction. ...
doi:10.1109/iccv.2015.201
dblp:conf/iccv/JuRW15
fatcat:32uiardl2rgjhb35upgocwjon4
Novel real-time tumor-contouring method using deep learning to prevent mistracking in X-ray fluoroscopy
2017
Radiological Physics and Technology
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This method can be used for tumor contouring because it uses deep learning to perform image segmentation. ...
We propose a new real-time tumor-contouring method that uses deep learning with importance recognition control. ...
A part of this work was supported by the Japan Society for the Promotion of Science (JSPS) Grants-in-Aid for Scientific Research (KAKENHI), Grant numbers 21611002, 25461903, and 17K09054. ...
doi:10.1007/s12194-017-0435-0
pmid:29285686
pmcid:PMC5840203
fatcat:f4j5ofbs7ngjxceppybky7yhtq
Marker-less tracking system for multiple mice using Mask R-CNN
2023
Frontiers in Behavioral Neuroscience
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In this study, we aimed to develop a novel marker-less tracking method for multiple mice with top-view videos using deep-learning-based techniques. ...
The behavior of C57BL/6 mice was recorded in an open-field arena, and the mouse contours were manually annotated for hundreds of frame images. ...
In this study, we established a marker-less tracking system for multiple mice using Mask R-CNN and a color-correlogram-based method. ...
doi:10.3389/fnbeh.2022.1086242
pmid:36688129
pmcid:PMC9853548
fatcat:vla25r6hnfct3l3a7vje5m2zp4
Automatic cameraman for dynamic video acquisition of football match
2013
2013 IEEE Second International Conference on Image Information Processing (ICIIP-2013)
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A system is described for dynamic video acquisition of football match. The system uses 2 cameras, a static and a dynamic camera. ...
The tracking data is then used to control a Pan Tilt Zoom (PTZ) Camera that focuses on the area of maximum player density. ...
We proposed a method and setup to automatically track action in a football match using a static camera for real-time player tracking and a PTZ camera for video acquisition. ...
doi:10.1109/iciip.2013.6707571
fatcat:nsdadsru3zdylo3vabnktizvlm
A Method of Free-Space Point-of-Regard Estimation Based on 3D Eye Model and Stereo Vision
2018
Applied Sciences
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The gaze tracking device uses two pairs of stereo cameras to capture the left and right eye images, respectively, and then sets a pair of scene cameras to capture the scene images. ...
This paper proposes a 3D point-of-regard estimation method based on 3D eye model and a corresponding head-mounted gaze tracking device. Firstly, a head-mounted gaze tracking system is given. ...
2 sin α l sin β l − a 3 cos α l sin β l a 2 cos α l + a 3 sin α l a 1 sin β l − a 2 sin α l cos β l + a 3 cos α l cos β l = a 1 a 2 a 3 → v sri = b 1 cos β r + b 2 sin α r sin β ...
doi:10.3390/app8101769
fatcat:t5yqc3jgbbbudontpq7ezkt6hi
Tracking Line Segment without Knowledge of Camera Motion
2013
International Journal of Computer Applications
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In this paper, a new method for line segments matching for indoor reconstruction will be presented. ...
The obtained results showed the feasibility of the method. General Terms Computer vision Keywords Tracking, line segment, Matching. ...
Two main methods for tracking exist: those based on the contour and those based on the texture of the object. ...
doi:10.5120/12742-9650
fatcat:po5ariij7fcalc7qs2vagvlclu
Detection and Tracking of Coronal Mass Ejections
[chapter]
2008
Lecture Notes in Computer Science
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This work presents a novel method for the detection and tracking of CMEs as recorded by the LASCO instruments onboard SOHO. ...
The algorithm we developed is based on level sets and region competition methods, the CMEs texture being characterized by their co-ocurrence matrix. ...
Acknowledgments SOHO is a project of international cooperation between ESA and NASA. ...
doi:10.1007/978-3-540-85920-8_87
fatcat:fc3xkfnm7re5peb6el7zfi4o34
Direct Co-calibration of Endobronchial Ultrasound and Video
[chapter]
2010
Lecture Notes in Computer Science
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This paper for the first time presents a fast and practical approach for the co-calibration of endobronchial ultrasound (EBUS) and video images from a single image pair. ...
At comparable accuracy, it achieves a significantly higher precision than a reference method based on combining electromagnetic tracking with two standard calibration techniques (hand-eye and single-wall ...
Conclusion This paper for the first time presents a fast and practical method and design for the co-calibration of endobronchial ultrasound and camera frames, which only requires a single image pair to ...
doi:10.1007/978-3-642-15699-1_54
fatcat:o4l4ukanongk5ghzf6s77gpvim
Microtubule End-Clustering Maintains a Steady-State Spindle Shape
2019
Current Biology
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We report that clustering of microtubule ends by dynein and NuMA is essential for mammalian spindles to hold a steady-state shape. ...
Thus, end-clustering by dynein and NuMA is required for mammalian spindles to reach a steady-state geometry, and in their absence Eg5 powers a turbulent microtubule network inside mitotic cells. ...
Also see Methods. (G) An example contour of a NuMA KO spindle. The red curve indicates the positional coordinate along the contour. ...
doi:10.1016/j.cub.2019.01.016
pmid:30744975
pmcid:PMC6383811
fatcat:ztahwdcqzbdsxjto2ifomr46z4
Real-time 6D Racket Pose Estimation and Classification for Table Tennis Robots
2019
International Journal of Robotic Computing
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By using two monocular cameras, we can extract the racket's contours and choose some special points as feature points in image coordinates. ...
Then, a Kalman filter is adopted to track the racket pose, and a multilayer perceptron (MLP) neural network is used to classify the pose movements. ...
We calculate D for a sequence of images and show the comparison in Table 1 . The direct method is adopted for ellipse tting because of its performance. ...
doi:10.35708/rc1868-126249
fatcat:o2f4rcyrinbhvjrii3iogd52pa
Impact of Preprocessing Features on the Performance of Ultrasound Tongue Contour Tracking, via Dynamic Programming
2021
Acta Polytechnica Hungarica
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The automated assessment of ultrasound images for speech processing is a difficult process. ...
Tongue contour tracking is indispensable for the dynamic modelling of articulation. ...
on their method and providing the series of images and the data set they used. ...
doi:10.12700/aph.18.2.2021.2.9
fatcat:2adkzy3jh5hzbil5q6n2lrbbc4
A framework for feature-based motion recovery in ground plane vehicle navigation
[chapter]
1997
Lecture Notes in Computer Science
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The method is applied to a real application consisting of an autonomous vehicle navigating in a crop field. ...
A transformation of the image plane is used that keeps the motion of the vehicle parallel to the transformed plane. ...
The tracking method explained in this paper has been tested with several image sequences obtained from a camera mounted on a manually driven vehicle, Fig. 1 , undergoing a zigzag motion. ...
doi:10.1007/3-540-63460-6_179
fatcat:mwg3p3nwbvcr7e36pwwzsdsmq4
Graphical Model-Based Tracking of Curvilinear Structures in Bio-image Sequences
2010
2010 20th International Conference on Pattern Recognition
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The state of the art HMM-based contour tracking scheme for tracking microtubules, while performing well in most scenarios, can miss the track if, during its growth, it intersects another microtubule in ...
In this paper we present a graphical model-based tracking algorithm which propagates across frames information about the dynamics of all the microtubules. ...
In this paper we focus on images of microtubules in live cell images, captured using fluorescence microscopy, and propose a graphical model-based open contour tracking algorithm for tracking these microtubules ...
doi:10.1109/icpr.2010.636
dblp:conf/icpr/KoulgiSRM10
fatcat:yjalsxfl5zg23ezotrnqb2pz4i
Fast and Accurate Registration of Visible and Infrared Videos
2013
2013 IEEE Conference on Computer Vision and Pattern Recognition Workshops
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pairs. ...
In this work, we propose a novel fast and accurate method based on keypoints and temporal information to solve the registration problem on planar scenes with moving objects for infrared-visible stereo ...
To improve our registration method, it would be useful to add after a first global transformation, a local transformation for each silhouette, for example, by a silhouette tracking method to get their ...
doi:10.1109/cvprw.2013.53
dblp:conf/cvpr/SonnBG13
fatcat:4cmlwvqjxret7ms3llsrx5lup4
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