Results 11  20
of
538,245
Self Organizing Map algorithm and distortion measure
, 2008
"... 1 Self Organizing Map algorithm and distortion measure We study the statistical meaning of the minimization of distortion measure and the relation between the equilibrium points of the SOM algorithm and the minima of distortion measure. If we assume that the observations and the map lie in an compac ..."
Abstract
 Add to MetaCart
1 Self Organizing Map algorithm and distortion measure We study the statistical meaning of the minimization of distortion measure and the relation between the equilibrium points of the SOM algorithm and the minima of distortion measure. If we assume that the observations and the map lie
Distancereciprocal distortion measure for binary document images
 IEEE Signal Processing Lett
, 2004
"... As we are moving to a digital world, digital document image processing is receiving more and more attention. Digital document images are essentially binary images. In applications related to binary document images, such as data hiding and watermarking in binary images, distortion may be present and ..."
Abstract

Cited by 28 (5 self)
 Add to MetaCart
and it is necessary to measure the distortion for performance comparison. However, traditional objective distortion measures cannot describe the distortion in binary images well to have a good match with human visual perception. In this paper, we present a novel objective distortion measure for binary document images
Quantization of the LPC Model with the ReconstructionError Distortion Measure
 in Proc. Int. Conf. EUSIPCO
, 1996
"... In Linear Predictive Coding algorithms, the coding of the speech signal consists of two separate stages: coding of the LPC model and coding of the excitation. In CELP, the LPC excitation is coded by AnalysisbySynthesis in the reconstruction domain, not by minimization of the error in the LPC resid ..."
Abstract

Cited by 1 (1 self)
 Add to MetaCart
residual domain. Commonly used distortion measures for quantization of the LPC spectral model are the Spectral Distortion and the Likelihood Ratio. For small quantization errors, they belong to a class of similar distortion measures which express an error in the residual domain. A new spectral distortion
On Source Coding with SideInformationDependent Distortion Measures
 IEEE TRANS. INFORM. THEORY
, 2000
"... Highresolution bounds in lossy coding of a real memoryless source are considered when side information is present. Let be a "smooth" source and let be the side information. First we treat the case when both the encoder and the decoder have access to and we establish an asymptotically tigh ..."
Abstract

Cited by 15 (3 self)
 Add to MetaCart
tight (highresolution) formula for the conditional ratedistortion function ( ) for a class of locally quadratic distortion measures which may be functions of the side information. We then consider the case when only the decoder has access to the side information (i.e., the "WynerZiv problem
On the Decomposition of the SelfOrganizing Map Distortion Measure
 Proceedings of the Workshop on SelfOrganizing Maps (WSOM'03
, 2003
"... Assessment of model properties with respect to data is important for reliable analysis of data. After training, SelfOrganizing Map (SOM) can be assessed, for instance, with respect to its quantization or its topology preservation properties with onenumber summaries. In this paper, we present a deco ..."
Abstract

Cited by 11 (1 self)
 Add to MetaCart
decomposition of the SOM distortion measure for measuring di#erent aspects of the SOM for map units locally. The terms measure quantization quality, the goodness of topological preservation, and the stress between these two aspects. Experiments are used to illustrate the behavior of the distortion measure terms
The information bottleneck method
 University of Illinois
, 1999
"... We define the relevant information in a signal x ∈ X as being the information that this signal provides about another signal y ∈ Y. Examples include the information that face images provide about the names of the people portrayed, or the information that speech sounds provide about the words spoken. ..."
Abstract

Cited by 545 (38 self)
 Add to MetaCart
about Y through a ‘bottleneck ’ formed by a limited set of codewords ˜X. This constrained optimization problem can be seen as a generalization of rate distortion theory in which the distortion measure d(x, ˜x) emerges from the joint statistics of X and Y. This approach yields an exact set of self
Audio Steganalysis With ContentIndependent Distortion Measures
"... Abstract—We first propose a novel contentindependent distortion measurement method and use this methodology for digital audio steganalysis. Contentindependent distortion measures are utilized as features for the classifier (steganalyzer) design. Experimental results show that the removal of cont ..."
Abstract
 Add to MetaCart
Abstract—We first propose a novel contentindependent distortion measurement method and use this methodology for digital audio steganalysis. Contentindependent distortion measures are utilized as features for the classifier (steganalyzer) design. Experimental results show that the removal
The Canonical Distortion Measure for Vector Quantization and Function Approximation
 In Proceedings of the Fourteenth International Conference on Machine Learning
, 1996
"... To measure the quality of a set of vector quantization points a means of measuring the distance between a random point and its quantization is required. Common metrics such as the Hamming and Euclidean metrics, while mathematically simple, are inappropriate for comparing natural signals such as spe ..."
Abstract

Cited by 19 (3 self)
 Add to MetaCart
such as speech or images. In this paper it is shown how an environment of functions on an input space X induces a canonical distortion measure (CDM) on X. The depiction "canonical" is justified because it is shown that optimizing the reconstruction error of X with respect to the CDM gives rise
Application of Computer Control in the Angular Distortion Measurement System
"... Abstract. A new realtime angular distortion measurement system, composed of devices i.e. the photoelectrical autocollimating collimator and the reflex lighttube installed on deck, is developed in this paper. Realtime measurement of vessel’s bidimensional angular distortion is achieved by using ..."
Abstract
 Add to MetaCart
Abstract. A new realtime angular distortion measurement system, composed of devices i.e. the photoelectrical autocollimating collimator and the reflex lighttube installed on deck, is developed in this paper. Realtime measurement of vessel’s bidimensional angular distortion is achieved by using
Wordlength Optimization With ComplexityAndDistortion Measure
 in Proc. IEEE Int. Conf. on Acoustics, Speech, and Signal Proc
, 2004
"... Many digital signal processing algorithms are first developed in floating point and later mapped into fixed point for digital hardware implementation. During this mapping, wordlengths are searched to minimize total hardware cost and maximize system performance. Complexity and distortion measures hav ..."
Abstract
 Add to MetaCart
Many digital signal processing algorithms are first developed in floating point and later mapped into fixed point for digital hardware implementation. During this mapping, wordlengths are searched to minimize total hardware cost and maximize system performance. Complexity and distortion measures
Results 11  20
of
538,245