June 1989 · Volume 8, Issue 2 · Vol. 8 · Issue 2 · DOI 10.1109/42.24861
C.-C. Chen, J.S. DaPonte, M.D. Fox
Abstract / 摘要
EnglishFollowing B.B. Mandelbrot's fractal theory (1982), it was found that the fractal dimension could be obtained in medical images by the concept of fractional Brownian motion. An estimation concept for determination of the fractal dimension based upon the concept of fractional Brownian motion is discussed. Two applications are found: (1) classification; (2) edge enhancement and detection. For the pur...
Author Info / 作者信息
C.-C. Chen
Affiliation not provided by IEEE Xplore
机构中文翻译待生成或 IEEE 未提供机构
J.S. DaPonte
Affiliation not provided by IEEE Xplore
机构中文翻译待生成或 IEEE 未提供机构
M.D. Fox
Affiliation not provided by IEEE Xplore
机构中文翻译待生成或 IEEE 未提供机构
Translation: pending
AI: pending
Article 24861
June 1989 · Volume 8, Issue 2 · Vol. 8 · Issue 2 · DOI 10.1109/42.24868
T. Hebert, R. Leahy
Abstract / 摘要
EnglishA generalized expectation-maximization (GEM) algorithm is developed for Bayesian reconstruction, based on locally correlated Markov random-field priors in the form of Gibbs functions and on the Poisson data model. For the M-step of the algorithm, a form of coordinate gradient ascent is derived. The algorithm reduces to the EM maximum-likelihood algorithm as the Markov random-field prior tends towa...
Author Info / 作者信息
T. Hebert
Affiliation not provided by IEEE Xplore
机构中文翻译待生成或 IEEE 未提供机构
R. Leahy
Affiliation not provided by IEEE Xplore
机构中文翻译待生成或 IEEE 未提供机构
Translation: pending
AI: pending
Article 24868