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Peer reviewed
Markas, Tassos; Reif, John – Information Processing and Management, 1992
Presents a class of distortion controlled vector quantizers that are capable of compressing images so they comply with certain distortion requirements. Highlights include tree-structured vector quantizers; multiresolution vector quantization; error coding vector quantizer; error coding multiresolution algorithm; and Huffman coding of the quad-tree…
Descriptors: Algorithms, Coding, Information Processing, Mathematical Formulas
Liu, Wei – ProQuest LLC, 2011
Correlation is often present among observations in a distributed system. This thesis deals with various design issues when correlated data are observed at distributed terminals, including: communicating correlated sources over interference channels, characterizing the common information among dependent random variables, and testing the presence of…
Descriptors: Maximum Likelihood Statistics, Bayesian Statistics, Correlation, Coding
Peer reviewed
Lin, Jianhua; Storer, James A. – Information Processing & Management, 1994
Describes the design of optimal tree-structured vector quantizers that minimize the expected distortion subject to cost functions related to storage cost, encoding rate, or quantization time. Since the optimal design problem is intractable in most cases, the performance of a general design heuristic based on successive partitioning is analyzed.…
Descriptors: Algorithms, Coding, Comparative Analysis, Costs
Peer reviewed
Chen, Oscal T.-C.; And Others – Information Processing and Management, 1992
Describes a modified frequency-sensitive self-organization (FSO) algorithm for image data compression and the associated VLSI architecture. Topics discussed include vector quantization; VLSI neural processor architecture; detailed circuit implementation; and a neural network vector quantization prototype chip. Examples of images using the FSO…
Descriptors: Algorithms, Coding, Information Processing, Mathematical Formulas