Showing papers on "Parametric Image published in 1990"
TL;DR: Local variations in attenuation, the center frequency and bandwidth of the transducer, and the distribution of scatterer sizes greatly influence the accuracy of estimates and the appearance of the image, thus demonstrating the importance of these factors in parametric image interpretation.
209 citations
TL;DR: In this article, an object function is approximated by a series of known model functions such as box car and polynomial functions and the solution of the object function depends on a finite number of unknowns whereupon the model parameters can be perfectly resolved to obtain infinite or superresolution.
65 citations
03 Apr 1990
TL;DR: The mathematical framework to develop parametric image models based on higher-order statistics (HOS) is discussed and three new image models are proposed, which are applied to predictive image coding and the results are compared with those obtained by a linear model based on the MSE criterion.
Abstract: The mathematical framework to develop parametric image models based on higher-order statistics (HOS) is discussed. For non-Gaussian images, the model parameters will depend on the HOS if the model has a nonlinear form or if a fidelity criterion other than the mean square error (MSE) is utilized. Three new image models are proposed: (i) a nonlinear model based on the MSE criterion, (ii) a linear model under a criterion other than the MSE, and (iii) a nonlinear model using a criterion other than the MSE. These models are applied to predictive image coding, and the results are compared with those obtained by a linear model based on the MSE criterion. >
4 citations
23 Sep 1990
TL;DR: In this article, a high spatial and temporal resolution parametric image processing program has been developed, which utilizes angiographic images acquired by a constant radiographic technique and corrects for scatter and veiling glare and constructs a number of parametric images that can be quantitated.
Abstract: A new high spatial and temporal resolution parametric image processing program has been developed The program utilizes angiographic images acquired by a constant radiographic technique, and corrects for scatter and veiling glare and constructs a number of parametric images that can be quantitated Because of its high resolution, the program permits a better understanding of the data and allows detection of imaging artifacts, ie, overlapping recirculation regions The program is applicable to various organs including the heart, kidney and gills >
4 citations