Papers by Leonard Dickens
Journal of Digital Imaging, Nov 1, 1990
Acquisition of multiparamatric images in multiple planes often requires unacceptably Iong scannin... more Acquisition of multiparamatric images in multiple planes often requires unacceptably Iong scanning times. The ability to display high quality planar cuts in arbitrary planes from single plana (eg, transaxial, coronal, or sagittal plane) images would alleviate the need to acquire images in multiple planes. The need to display data from three-dimensional volume acquisitions also posas a problem to the radiologist. We have developed ah interactive multidimensional display tool for magnetic resonance data. The tool presents three orthogonal planes {such as transaxial, coronal, and sagittai) simultaneously and allows the usar to interactively roam through the data set. The usar can select any arbitrary oblique plane and obtain the corresponding reformations. Additionally the tool allows the correlated display of sets of differently acquired data. This tool offers ah effective means for the disptau of isotropic data and reformatted planar data. The ability to interact directly with the data allows increased transference of information to the radiologist and referring physician.
Springer eBooks, 1991
In this paper we describe a shell which has been developed to allow an integration of neural netw... more In this paper we describe a shell which has been developed to allow an integration of neural network and expert systems technology. The system, SCRuFFy, is based on an analysis of the different abilities and time courses of NN and Al systems. Critical to the processing of this system is a temporal pattern matcher which is used to mediate between the two subsystems, providing a "signal to symbol" mapping. This mapping allows the expert system to reason about the time course of signals which are classified by a connectionist netwo) which is trained via classical back-propagation of error during a separate training phase. An example of the simulated control of the temperature of an underwater welding robot is presented to demonstrate these capabilities.
Automatic Generation of Products from Terabyte-Size Geographical Information System Using Planning and Scheduling
Gis, 1995
Abstract. Dijkstra's shortest path algorithm is widely used in s... more Abstract. Dijkstra's shortest path algorithm is widely used in spread simulation. While Dijkstra's algorithm is robust in solving classical network problems, its implementation in raster-based geographical information systems (GIS) has not been satisfying. A major reason for the ...
Journal of Digital Imaging, 1990
Acquisition of multiparamatric images in multiple planes often requires unacceptably Iong scannin... more Acquisition of multiparamatric images in multiple planes often requires unacceptably Iong scanning times. The ability to display high quality planar cuts in arbitrary planes from single plana (eg, transaxial, coronal, or sagittal plane) images would alleviate the need to acquire images in multiple planes. The need to display data from three-dimensional volume acquisitions also posas a problem to the radiologist. We have developed ah interactive multidimensional display tool for magnetic resonance data. The tool presents three orthogonal planes {such as transaxial, coronal, and sagittai) simultaneously and allows the usar to interactively roam through the data set. The usar can select any arbitrary oblique plane and obtain the corresponding reformations. Additionally the tool allows the correlated display of sets of differently acquired data. This tool offers ah effective means for the disptau of isotropic data and reformatted planar data. The ability to interact directly with the data allows increased transference of information to the radiologist and referring physician.
Automatic generation of products from terabyte-size geographical information systems using planning and scheduling
International journal of geographical information systems, 1995
Abstract. Dijkstra's shortest path algorithm is widely used in s... more Abstract. Dijkstra's shortest path algorithm is widely used in spread simulation. While Dijkstra's algorithm is robust in solving classical network problems, its implementation in raster-based geographical information systems (GIS) has not been satisfying. A major reason for the ...
Integrating Neural Network and Expert Reasoning: An Example James Hendler1 Leonard Dickens Department of Computer Science
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Papers by Leonard Dickens