Title :
Scalable data parallel algorithms for texture synthesis using Gibbs random fields
Author :
Bader, David A. ; JáJá, Joseph ; Chellappa, Rama
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
fDate :
10/1/1995 12:00:00 AM
Abstract :
This article introduces scalable data parallel algorithms for image processing. Focusing on Gibbs and Markov random field model representation for textures, we present parallel algorithms for texture synthesis, compression, and maximum likelihood parameter estimation, currently implemented on Thinking Machines CM-2 and CM-5. The use of fine-grained, data parallel processing techniques yields real-time algorithms for texture synthesis and compression that are substantially faster than the previously known sequential implementations. Although current implementations are on Connection Machines, the methodology presented enables machine-independent scalable algorithms for a number of problems in image processing and analysis
Keywords :
Markov processes; data compression; image processing; image texture; maximum likelihood estimation; parallel algorithms; parallel machines; random processes; Connection Machines; Gibbs random fields; Markov random field; Thinking Machine CM-2; Thinking Machine CM-5; fine-grained parallel processing; image analysis; image processing; machine-independent scalable algorithms; maximum likelihood parameter estimation; model representation; real-time algorithms; scalable data parallel algorithms; texture compression; texture synthesis; Image coding; Image processing; Image restoration; Least squares approximation; Noise shaping; Optimized production technology; Parallel algorithms; Signal processing algorithms; Signal restoration; Signal to noise ratio;
Journal_Title :
Image Processing, IEEE Transactions on