Proceedings of the Fifth International Conference on Information Fusion. FUSION 2002. (IEEE Cat.No.02EX5997)
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Information fusion for image analysis: geospatial foundations for higher-level fusion
Tập 1 - Trang 562-569 vol.1
In support of the AFOSR program in Information Fusion, the CNS Technology Laboratory at Boston University is developing and applying neural models of image and signal processing, pattern learning and recognition, associative learning dynamics, and 3D visualization, to the domain of Information Fusion for Image Analysis in a geospatial context. Our research is focused by a challenge problem involvi...... hiện toàn bộ
#Image analysis #Laboratories #Context modeling #Signal processing #Pattern recognition #Image recognition #Vehicle dynamics #Visualization #Focusing #Terrorism
A new method for representing linguistic quantifications by random sets with applications to tracking and data fusion
Tập 2 - Trang 1308-1315 vol.2
There is an obvious need to be able to integrate both linguistic-based and stochastic-based input information in data fusion. In particular, this need is critical in addressing problems of track association, including cyber-state intrusions. This paper treats this issue through a new insight into how three apparently distinct mathematical tools can be combined: "boolean relational event algebra" (...... hiện toàn bộ
#Algebra #Fuzzy logic #Fuzzy sets #Educational institutions #Probabilistic logic #Arithmetic #Natural languages #Stochastic processes #Information security #Testing
Boosted learning in dynamic Bayesian networks for multimodal detection
Tập 1 - Trang 550-556 vol.1
Bayesian networks are an attractive modeling tool for human sensing, as they combine an intuitive graphical representation with efficient algorithms for inference and learning. Temporal fusion of multiple sensors can be efficiently formulated using dynamic Bayesian networks (DBNs) which allow the power of statistical inference and learning to be combined with contextual knowledge of the problem. U...... hiện toàn bộ
#Bayesian methods #Inference algorithms #Face detection #Motion detection #Humans #Sensor fusion #Learning systems #Skin #Mouth #Detectors
Radar detection improvement by integration of multi-object tracking
Tập 2 - Trang 1249-1255 vol.2
This paper presents a new and simple approach to the problem of multiple sensor data fusion. We introduce an efficient algorithm that can fuse multiple sensor measurements to track an arbitrary number of objects in a cluttered environment. The algorithm combines conventional Kalman filtering techniques with probabilistic data association methods. A Gauss Markov process model is assumed to handle s...... hiện toàn bộ
#Radar detection #Radar tracking #Sensor fusion #Fuses #Filtering algorithms #Kalman filters #Gaussian processes #Markov processes #Sampling methods #Frequency
Ballistic track initialization from a bisatellite surveillance imaging system
Tập 2 - Trang 1015-1022 vol.2
This paper presents a new approach for ballistic target detection and tracking based on delocalized bisatellite surveillance system. The basic idea for track initialization is to use the advantage of stereovision provided by the two imaging IR sensors aboard surveillance geostationary satellites to improve the quality of true target track detection and to reduce the number of false track initializ...... hiện toàn bộ
#Surveillance #Target tracking #Satellites #Infrared detectors #Optical imaging #Infrared image sensors #Image sensors #Logic #Infrared imaging #Acceleration
Learning Bayesian networks. II. A computational algorithm
Tập 2 - Trang 777-783 vol.2
For pt. I see ibid., pp. 769-76. Following the theory developed in a companion paper, this paper presents a general algorithm for learning Bayesian networks from data. The algorithm implements a global optimisation of a joint MAP-MDL score aiming at discovering the best Bayesian network model underlying the given data set. The whole procedure is divided into three phases. The first phase aims at f...... hiện toàn bộ
#Bayesian methods #Testing #Statistics #Computer networks #Computational intelligence #Intelligent networks #Intelligent structures #Remote sensing #Data engineering #Floors
Performance bounds for sensor registration
Tập 1 - Trang 346-353 vol.1
This paper explores the subject of Cramer-Rao lower bounds for unbiased sensor registration algorithms. Two Cartesian coordinate systems are considered: a two-dimensional regional plane for tactical surveillance and the Earth-centred-Earth-fixed (ECEF) coordinates for wide area surveillance. The theoretical performance bound is of fundamental importance both for algorithm performance assessment an...... hiện toàn bộ
#Surveillance #Iterative algorithms #Australia #Sensor systems #Azimuth #Target tracking #Error correction #Degradation #Coordinate measuring machines #Radar measurements
Optimization of distributed detection networks with tree structures
Tập 1 - Trang 164-169 vol.1
This paper considers the optimization of tree networks consisting of N nodes under Bayesian criterion. To optimize the system performance, the decision rules at each node must be optimized simultaneously. When the sensors are conditionally independent, it can be shown that the optimal decision rules at each node can be reduced to likelihood ratio tests, and the necessary conditions for the optimum...... hiện toàn bộ
#Tree data structures #Testing #Sensor fusion #Bayesian methods #Sensor systems #System performance #Design optimization #Tree graphs #Costs #Telecommunication network reliability
Ranking by AHP: a rough approach
Tập 1 - Trang 185-190 vol.1
Decision making is always a difficult assignment for everyone in every context and more information eases the process and makes it more accurate. More data does not always mean more information. Rough sets alone can be adopted to handle hierarchical structure in the family of criteria using decision rules based on preference model. The rules are induced from the preferential information given by t...... hiện toàn bộ
#Information systems #Decision making #Mathematics #Rough sets #Spatial databases #Algorithm design and analysis #Fuzzy sets #Fuzzy set theory #Set theory
Coalitions for distributed sensor fusion
Tập 1 - Trang 636-642 vol.1
We address the problem of efficient use of communication bandwidth in a network of distributed sensors. Each sensor node has enough computational power to fuse its own estimates with those of other nodes using an optimal filter, but message passing is expensive. The goal is to give each node an identical tactical picture of the area of interest without compromising target track accuracy. In the cu...... hiện toàn bộ
#Sensor fusion #Target tracking #Radar tracking #Bandwidth #Sensor systems #Fuses #Information filters #Laboratories #Band pass filters #Message passing