Global ETD Search

31	Low frequency long baseline interferometry Spinks, M. J. January 1985 (has links) No description available. 523.01 Radio astronomical techniques
32	A hierarchical decomposition approach to trajectory planning and dynamic control, with application to robotics Tan, K. S. January 1985 (has links) No description available. 629.8 Control techniques
33	Landfill hydrogeology and the hydraulic properties of in situ landfilled material Burrows, Mark Robert January 1998 (has links) No description available. 628.44 Leachate management techniques
34	IMPROVED METHODS OF IMAGE SMOOTHING AND RESTORATION (NONSTATIONARY MODELS). MORGAN, KEITH PATRICK. January 1985 (has links) The problems of noise removal, and simultaneous noise removal and deblurring of imagery are common to many areas of science. An approach which allows for the unified treatment of both problems involves modeling imagery as a sample of a random process. Various nonstationary image models are explored in this context. Attention is directed to identifying the model parameters from imagery which has been corrupted by noise and possibly blur, and the use of the model to form an optimal reconstruction of the image. Throughout the work, emphasis is placed on both theoretical development and practical considerations involved in achieving this reconstruction. The results indicate that the use of nonstationary image models offers considerable improvement over traditional techniques. Image processing -- Digital techniques.
35	PREDICTING EDGE DETECTOR PERFORMANCE Engbrecht, Michael Robert, 1955- January 1987 (has links) This paper proposes a metric to predict edge detection performance when applied to an image with noise. First, models of edges and edge detection linear operators are characterized by their spatial and Fourier domain properties. Second, additive uncorrelated noise on the operator is examined and a metric is developed using the image formation system modulation transfer function (MTF), expected noise power spectral density, and edge detector characterization as inputs. Thirdly, the problem of partially correlated noise is examined. A separate performance metric for simple thresholded operator outputs is proposed. Finally, several discrete edge detectors in noise are evaluated numerically. Both the metric based on signal to noise detector output, and based on thresholding probabilities were useful in predicting previously published performance results. This was true even for many nonlinear detectors based on the linear detectors evaluated here. The specification of a localization criteria was critical for comparisons between detectors. Image processing -- Digital techniques.
36	Adaptive transform coding of images using vector quantization techniques Ang, Y. H. January 1987 (has links) No description available. 621.3994 Image coding techniques
37	In-isolation and in-soil behaviour of geotextiles Kabir, M. H. January 1984 (has links) No description available. 620.0044 Geotextile testing techniques
38	A classical and distributed theory of Mellin multiplier transforms Spratt, W. J. January 1985 (has links) No description available. 510 Mellin transform techniques
39	Experimental measurements in a multipole discharge : application to H'- production Hopkins, Michael Brendan January 1987 (has links) No description available. 530.44 Plasma diagnostic techniques
40	Detection of species by laser resonant spectroscopy Duckworth, A. January 1989 (has links) No description available. 535 Radiation detection techniques

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