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Displaying 1-17 out of 17 total
Multiresolution Stereo Image Matching Using Complex Wavelets
Found in: Pattern Recognition, International Conference on
By Julian Magarey, Anthony Dick
Issue Date:August 1998
pp. 4
No summary available.
Contextual Hypergraph Modeling for Salient Object Detection
Found in: 2013 IEEE International Conference on Computer Vision (ICCV)
By Xi Li,Yao Li,Chunhua Shen,Anthony Dick,Anton Van Den Hengel
Issue Date:December 2013
pp. 3328-3335
Salient object detection aims to locate objects that capture human attention within images. Previous approaches often pose this as a problem of image contrast analysis. In this work, we model an image as a hyper graph that utilizes a set of hyper edges to ...
Graph mode-based contextual kernels for robust SVM tracking
Found in: Computer Vision, IEEE International Conference on
By Xi Li,Anthony Dick,Hanzi Wang,Chunhua Shen,Anton van den Hengel
Issue Date:November 2011
pp. 1156-1163
Visual tracking has been typically solved as a binary classification problem. Most existing trackers only consider the pairwise interactions between samples, and thereby ignore the higher-order contextual interactions, which may lead to the sensitivity to ...
Image Retrieval with a Visual Thesaurus
Found in: Digital Image Computing: Techniques and Applications
By Yanzhi Chen, Anthony Dick, Anton van den Hengel
Issue Date:December 2010
pp. 8-14
Current state-of-art of image retrieval methods represent images as an unordered collection of local patches, each of which is classified as a
Measuring Latency for Video Surveillance Systems
Found in: Digital Image Computing: Techniques and Applications
By Rhys Hill, Christopher Madden, Anton van den Hengel, Henry Detmold, Anthony Dick
Issue Date:December 2009
pp. 89-95
The increased flexibility and other benefits offered by IP network cameras makes them a common choice for installation in new and expanded surveillance networks. One commonly quoted limitation of IP cameras is their high latency when compared to their anal...
Real Time Target Tracking with Pan Tilt Zoom Camera
Found in: Digital Image Computing: Techniques and Applications
By Pankaj Kumar, Anthony Dick, Tan Soo Sheng
Issue Date:December 2009
pp. 492-497
We present an approach for real-time tracking of a non-rigid target with a moving pan-tilt-zoom (PTZ) camera. The tracking of the object and control of the camera is handled by one computer in real time. The main contribution of the paper is method for tar...
In situ image-based modeling
Found in: Mixed and Augmented Reality, IEEE / ACM International Symposium on
By Anton van den Hengel, Rhys Hill, Ben Ward, Anthony Dick
Issue Date:October 2009
pp. 107-110
We present an interactive image-based modelling method for generating 3D models within an augmented reality system. Applying real time camera tracking, and high-level automated image analysis, enables more powerful modelling interactions than have previous...
Contradiction and Correlation for Camera Overlap Estimation
Found in: Advanced Video and Signal Based Surveillance, IEEE Conference on
By Alex Cichowski, Christopher Madden, Anton van den Hengel, Rhys Hill, Henry Detmold, Anthony Dick
Issue Date:September 2009
pp. 268-273
An accurate estimate of camera overlap is a key enabler for efficient network-wide surveillance processing (e.g. inter-camera tracking), especially in large-scale surveillance networks. Techniques based on contradictions in pair-wise occupancy data, such a...
Middleware for Distributed Video Surveillance
Found in: IEEE Distributed Systems Online
By Henry Detmold, Anton van den Hengel, Anthony Dick, Katrina Falkner, David S. Munro, Ron Morrison
Issue Date:February 2008
pp. 1
Future generations of automated video surveillance systems must be scalable and evolvable, and they demand sophisticated middleware support. This middleware approach partitions systems according to an activity topology—a graph describing activity observed ...
Thrift: Local 3D Structure Recognition
Found in: Digital Image Computing: Techniques and Applications
By Alex Flint, Anthony Dick, Anton van den Hengel
Issue Date:December 2007
pp. 182-188
This paper presents a method for describing and recognising local structure in 3D images. The method extends proven techniques for 2D object recognition in images. In particular, we propose a 3D interest point detector that is based on SURF, and a 3D descr...
Discontinuity-Preserving Optical Flow Computation by a Dynamic Overdetermined System
Found in: Digital Image Computing: Techniques and Applications
By Yan Niu, Anthony Dick, Michael Brooks
Issue Date:December 2007
pp. 352-359
This paper presents an optical flow estimation technique that improves the accuracy of existing methods in the problematic case of motion discontinuity. An initial flow estimate at a pixel is calculated from selected
Activity Topology Estimation for Large Networks of Cameras
Found in: Advanced Video and Signal Based Surveillance, IEEE Conference on
By Anton van den Hengel, Anthony Dick, Rhys Hill
Issue Date:November 2006
pp. 44
Estimating the paths that moving objects can take through the fields of view of possibly non-overlapping cameras, also known as their activity topology, is an important step in the effective interpretation of surveillance video. Existing approaches to this...
Scalable Surveillance Software Architecture
Found in: Advanced Video and Signal Based Surveillance, IEEE Conference on
By Henry Detmold, Anthony Dick, Katrina Falkner, David S. Munro, Anton van den Hengel, Ron Morrison
Issue Date:November 2006
pp. 103
Video surveillance is a key technology for enhanced protection of facilities such as airports and power stations from various types of threat. Networks of thousands of IP-based cameras are now possible, but current surveillance methodologies become increas...
2D Articulated Tracking with Dynamic Bayesian Networks
Found in: Computer and Information Technology, International Conference on
By Chunhua Shen, Anton van den Hengel, Anthony Dick, Michael J. Brooks
Issue Date:September 2004
pp. 130-136
We present a novel method for tracking the motion of an articulated structure in a video sequence. The analysis of articulated motion is challenging because of the potentially large number of degrees of freedom (DOFs) of an articulated body. For particle f...
Context-Aware Hypergraph Construction for Robust Spectral Clustering
Found in: IEEE Transactions on Knowledge and Data Engineering
By Xi Li,Weiming Hu,Chunhua Shen,Anthony Dick,Zhongfei Mark Zhang
Issue Date:July 2013
pp. 1
Spectral clustering is a powerful tool for unsupervised data analysis. In this paper, we propose a context-aware hypergraph similarity measure (CAHSM), which leads to robust spectral clustering in the case of noisy data. We construct three types of hypergr...
Learning Compact Binary Codes for Visual Tracking
Found in: 2013 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Xi Li,Chunhua Shen,Anthony Dick,Anton van den Hengel
Issue Date:June 2013
pp. 2419-2426
A key problem in visual tracking is to represent the appearance of an object in a way that is robust to visual changes. To attain this robustness, increasingly complex models are used to capture appearance variations. However, such models can be difficult ...
A survey of appearance models in visual object tracking
Found in: ACM Transactions on Intelligent Systems and Technology (TIST)
By Anthony Dick, Anton Van Den Hengel, Chunhua Shen, Weiming Hu, Xi Li, Zhongfei Zhang
Issue Date:September 2013
pp. 1-48
Visual object tracking is a significant computer vision task which can be applied to many domains, such as visual surveillance, human computer interaction, and video compression. Despite extensive research on this topic, it still suffers from difficulties ...