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 Toby L J Howard

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Average citations per article6.00
Citation Count102
Publication count17
Publication years1990-2008
Available for download6
Average downloads per article398.00
Downloads (cumulative)2,388
Downloads (12 Months)84
Downloads (6 Weeks)14
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17 results found Export Results: bibtexendnoteacmrefcsv

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1
February 2008 Computer Vision and Image Understanding: Volume 109 Issue 2, February, 2008
Publisher: Elsevier Science Inc.
Bibliometrics:
Citation Count: 10

In this paper, we introduce a 3-D human-body tracker capable of handling fast and complex motions in real-time. We build upon the Monte-Carlo Bayesian framework, and propose novel prediction and evaluation methods improving the robustness and efficiency of the tracker. The parameter space, augmented with first order derivatives, is automatically ...
Keywords: Monte-Carlo, Real-time, Variable length Markov models, Blobs, Cross-Entropy, Visual-hull, Bayesian, Kullback-Leibler, Volumetric reconstruction, Human-body tracking

2
November 2005 CW '05: Proceedings of the 2005 International Conference on Cyberworlds
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

We present an approach for enriching a Virtual Environment by augmenting it with the kind of naturalistic clutter often found in real-world scenes. Rather than manually specifying clutter distribution, our semi-automatic procedural approach seeks to add plausible clutter with minimal user-interaction, and few constraints on the format in which the ...
Keywords: Clutter, Procedural Augmentation, Virtual Environments, Genetic Algorithm, Rigid Body Dynamics

3
November 2004 ISMAR '04: Proceedings of the 3rd IEEE/ACM International Symposium on Mixed and Augmented Reality
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 6
Downloads (6 Weeks): 0,   Downloads (12 Months): 2,   Downloads (Overall): 176

Full text available: PDFPDF
This paper presents a robust method for real-time visual human body tracking. We perform a hierarchical 3-D reconstruction from multiple camera views as a basis for tracking. Blobs attached to a kinematic model are then used to reliably track individual body parts with both volume and color information. We describe ...

4 published by ACM
July 2003 SIGGRAPH '03: ACM SIGGRAPH 2003 Sketches & Applications
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 2,   Downloads (12 Months): 12,   Downloads (Overall): 351

Full text available: PDFPDF

5
June 2003 EGRW '03: Proceedings of the 14th Eurographics workshop on Rendering
Publisher: Eurographics Association
Bibliometrics:
Citation Count: 18

We propose a new algorithm that uses consumer-level graphics hardware to render shadows cast by synthetic objects and a real lighting environment. This has immediate benefit for interactive Augmented Reality applications, where synthetic objects must be accurately merged with real images. We show how soft shadows cast by direct and ...

6
September 2002 ISMAR '02: Proceedings of the 1st International Symposium on Mixed and Augmented Reality
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 19
Downloads (6 Weeks): 0,   Downloads (12 Months): 11,   Downloads (Overall): 403

Full text available: PDFPDF
Camera tracking is a fundamental requirement for video-based Augmented Reality applications. The ability to accurately calculate the intrinsic and extrinsic camera parameters for each frame of a video sequence is essential if synthetic objects are to be integrated into the image data in a believable way. In this paper, we ...

7 published by ACM
July 2002 SIGGRAPH '02: ACM SIGGRAPH 2002 conference abstracts and applications
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 0,   Downloads (12 Months): 0,   Downloads (Overall): 115

Full text available: PDFPDF
The ICARUS system is a suite of software packages, developed at the University of Manchester, that allows geometric models to be quickly and easily reconstructed from image and video sequences captured with uncalibrated digital cameras. The system combines automatic and semi-automatic camera calibration algorithms with an easy-to-use interactive model-building phase ...

8
July 2001 CGI '01: Proceedings of the International Conference on Computer Graphics
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

Abstract: The problem of recovering the shape of objects from three-dimensional data is important to many areas of computer graphics and vision. We present here a method for the recovery of single-part objects from unstructured 3D points sets, based on the fitting of deformable superquadric models. The limitations of least-squares ...

9
July 2001 CGI '01: Computer Graphics International 2001
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0


10
March 2001 VR '01: Proceedings of the Virtual Reality 2001 Conference (VR'01)
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 1

Physically-based modelling is a powerful technique for specifying the laws and characteristics of Virtual Environments (VEs) and the objects they contain. In this paper we describe Iota, a component framework for creating and interacting with multi-body physically-based models in VEs. In conclusion,we present two case studies implemented within the framework.

11
February 2001 Presence: Teleoperators and Virtual Environments: Volume 10 Issue 1, February 2001
Publisher: MIT Press
Bibliometrics:
Citation Count: 7

This paper describes a publicly available virtual reality (VR) system, GNU/MAVERIK, which forms one component of a complete VR operating system. We give an overview of the architecture of MAVERIK, and show how it is designed to use application data in an intelligent way, via a simple, yet powerful, callback ...

12 published by ACM
October 2000 VRST '00: Proceedings of the ACM symposium on Virtual reality software and technology
Publisher: ACM
Bibliometrics:
Citation Count: 5
Downloads (6 Weeks): 12,   Downloads (12 Months): 57,   Downloads (Overall): 1,021

Full text available: PDFPDF
There are many real-world applications of Virtual Reality that require the construction of complex and accurate three-dimensional models, suitably structured for interactive manipulation. In this paper, we present semi-automatic methods that allow such environments to be quickly and easily built from photographs taken with uncalibrated cameras, and illustrate the techniques ...
Keywords: Virtual Reality, Texture, Computer Vision, Photogrammetry, Scene of Crime Reconstruction, Model Building

13 published by ACM
December 1999 VRST '99: Proceedings of the ACM symposium on Virtual reality software and technology
Publisher: ACM
Bibliometrics:
Citation Count: 16
Downloads (6 Weeks): 0,   Downloads (12 Months): 2,   Downloads (Overall): 322

Full text available: PDFPDF
This paper describes a publicly available virtual reality (VR) system, GNU/MAVERIK, which forms one component of a complete 'VR operating system'. We give an overview of the architecture of MAVERIK, and show how it is designed to use application data in an intelligent way, via a simple, yet powerful, callback ...

14
December 1995 VE '95: Selected papers of the Eurographics workshops on Virtual environments '95
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 4


15
May 1991 Computer-Aided Design: Volume 23 Issue 4, May 1991
Publisher: Butterworth-Heinemann
Bibliometrics:
Citation Count: 0


16

17
June 1990 Computer Graphics Forum: Volume 9 Issue 2, June 1990
Publisher: The Eurographs Association & John Wiley & Sons, Ltd.
Bibliometrics:
Citation Count: 0




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