Unsupervised weld defect classification in radiographic images using multivariate generalized Gaussian mixture model with exact computation of mean and shape parameters.
Nafaa NacereddineAicha-Baya GoumeidaneDjemel ZiouPublished in: Comput. Ind. (2019)
Keyphrases
- gaussian mixture model
- radiographic images
- exact computation
- mixture model
- imaging modalities
- low contrast
- em algorithm
- unsupervised learning
- feature vectors
- maximum likelihood
- probability density function
- shape model
- expectation maximization
- parameter estimation
- supervised learning
- higher order
- semi supervised
- model selection
- feature space
- object recognition
- image segmentation
- markov chain monte carlo