Glenn Himes

• MITRE

As we know, interoperability is an almost nonexistent feature of medical devices. This paper defines interoperability; discusses why the lack of medical device interoperability is a problem, and the scope of the problem. Possible reasons for the lack of medical device interoperability are explored. Numerous benefits to medical device interoperabili...

This paper describes part of an integrated system for target tracking. The image is acquired, edge detected and segmented by a subsystem not discussed in the paper. Algorithms to determine the centroid of a windowed target using neural networks are developed. Further, once the target centroid is determined, it is continuously updated to track the t...

We examine the use of character image analysis coupled with contextual information in complex data gathering forms to identify and correct optical character recognition (OCR) system rejection and substitution errors. Segmented characters from a complex data gathering form are initially classified using an OCR engine based on a combination of Karhun...

The use of a neocognitron in an automatic target recognition (ATR) system is described. An image is acquired, edge detected, segmented, and centered on a log-spiral grid using subsystems not discussed in the paper. A conformal transformation is used to map the log-spiral grid to a computation plane in which rotations and scalings are transformed to...

Centroid calculation provides a means of eliminating translation problems, which is useful for automatic target recognition. a neural network implementation of centroid calculation is described that used a spatial filter and a Hopfield network to determine the centroid location of an object. spatial filtering of a segmented window creates a result...

This paper describes part of an integrated system for target tracking. The image is acquired, edge detected, and segmented by a subsystem not discussed in this paper. Algorithms to determine the centroid of a windowed target using neural networks are developed. Further, once the target centroid is determined, it is continuously updated in order to...

A magneto-optic spatial light modulator (MOSLM) has been proposed for use as a Fourier plane filter in a coherent optical correlator. Its binary nature and limited, presently small, space-bandwidth product constrain any filter design. Although binary quantization allows a maximum number of Fourier values to be coded, quantization and reconstruction...

A magnetooptic spatial light modulator is used to reconstruct computer-generated Fourier holograms. Different methods for designing the holgrams are considered including binary and complex quantization in conjunction with an iterative algorithm, carrier techniques, phase manipulations, and cell oriented binary coding. The limitations of binary quan...

Techniques for reducing reconstruction errors in computer-generated hologram design include the iterative application of constraints to the hologram and to its reconstruction and the noniterative application of error diffusion to the hologram. These techniques are combined such that the error resulting from the application of both Fourier and objec...