Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Dennis W. Ruck"'
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 32:628-649
The wavelet filters of the conventional 3D multiresolution analysis possess homogeneous spatial and temporal frequency characteristics which limits one's ability to match filter frequency characteristics to signal frequency behavior. Also, the conven
Autor:
Dennis W. Ruck, Kenneth H. Fielding
Publikováno v:
Pattern Recognition. 28:1415-1421
A spatio-temporal method of identifying moving light displays (M LDs) is presented. The hidden Markov model (HMM) technique is used as the classification algorithm, making classification decisions based on a spatio-temporal sequence of observed objec
Autor:
Steven K. Rogers, Mark E. Oxley, John M. Colombi, James C. Gainey, Thomas J. Burns, Curtis E. Martin, Dennis W. Ruck, Matthew Kabrisky, Ken H. Fielding
Publikováno v:
Neural Networks. 8:1153-1184
Many applications reported in artificial neural networks are associated with military problems. This paper reviews concepts associated with the processing of military data to find and recognize targets—automatic target recognition (ATR). A general-
Publikováno v:
Cancer Letters. 77:79-83
Why use neural networks? The reasons commonly cited in the literature for using artificial neural networks for any problem are many and varied. They learn from experience. They work where other algorithms fail. They generalize from the training examp
Publikováno v:
Pattern Recognition. 26:1579-1592
The purpose of this paper is to provide an analytical understanding of the two-dimensional (2D) complex cepstrum and to apply the cepstrum in image processing. The analytical cepstrum is first developed in one dimension for the single echo case. This
Publikováno v:
Neurocomputing. 5:91-103
This paper presents a probability of error based method of determining the saliency (usefulness) of input features and hidden nodes. We show that the partial derivative of the output nodes with respect to a given input feature yields a sensitivity me
Publikováno v:
Applied optics. 35(29)
For adaptive optical systems to compensate for atmospheric-turbulence effects, the wave-front perturbation must be measured with a wave-front sensor (WFS). A Hartmann WFS typically divides the optical aperture into subapertures and then measures the
Publikováno v:
Applied optics. 35(21)
For adaptive-optics systems to compensate for atmospheric turbulence effects, the wave-front perturbation must be measured with a wave front sensor (WPS), and key parameters of the atmosphere and the adaptive-optics system must be known. Two paramete
Publikováno v:
Applied optics. 33(23)
An optical implementation of a wavelet transform is presented. Optical Haar wavelets are created by the use of computer-generated holography. Two different holographic techniques are explored: (1) interferogram and (2) detour-phase. A discrete repres
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 14:686-691
The relationship between backpropagation and extended Kalman filtering for training multilayer perceptrons is examined. These two techniques are compared theoretically and empirically using sensor imagery. Backpropagation is a technique from neural n