Results 21 to 30 of about 365,701 (280)

Superpixel Segmentation Using Gaussian Mixture Model [PDF]

open access: yesIEEE Transactions on Image Processing, 2018
Superpixel segmentation algorithms are to partition an image into perceptually coherence atomic regions by assigning every pixel a superpixel label. Those algorithms have been wildly used as a preprocessing step in computer vision works, as they can enormously reduce the number of entries of subsequent algorithms.
Zhihua Ban, Jianguo Liu, Li Cao
openaire   +4 more sources

Fitting a Gaussian Mixture Model Through the Gini Index

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2021
A linear combination of Gaussian components is known as a Gaussian mixture model. It is widely used in data mining and pattern recognition. In this paper, we propose a method to estimate the parameters of the density function given by a Gaussian mixture ...
López-Lobato Adriana Laura   +1 more
doaj   +1 more source

Similarity measure and domain adaptation in multiple mixture model clustering: An application to image processing. [PDF]

open access: yesPLoS ONE, 2017
This paper considers three crucial issues in processing scaled down image, the representation of partial image, similarity measure and domain adaptation.
Siow Hoo Leong, Seng Huat Ong
doaj   +1 more source

Extensible Gaussian Mixture Model for Image Prior Modeling [PDF]

open access: yesJisuanji gongcheng, 2020
To address the inextensible fixed number of components in image prior modeling based on Gaussian Mixture Model(GMM),this paper proposes an extensible GMM model based on Dirichlet Process(DP).Through the addition and merging mechanism of cluster ...
ZHANG Mohua, PENG Jianhua
doaj   +1 more source

Mixtures of Shifted Asymmetric Laplace Distributions [PDF]

open access: yes, 2012
A mixture of shifted asymmetric Laplace distributions is introduced and used for clustering and classification. A variant of the EM algorithm is developed for parameter estimation by exploiting the relationship with the general inverse Gaussian ...
Browne, Ryan P.   +2 more
core   +1 more source

Scale-Based Gaussian Coverings: Combining Intra and Inter Mixture Models in Image Segmentation

open access: yesEntropy, 2009
By a “covering” we mean a Gaussian mixture model fit to observed data. Approximations of the Bayes factor can be availed of to judge model fit to the data within a given Gaussian mixture model.
Jean-Luc Starck   +2 more
doaj   +1 more source

Variational Autoencoder With Optimizing Gaussian Mixture Model Priors

open access: yesIEEE Access, 2020
The latent variable prior of the variational autoencoder (VAE) often utilizes a standard Gaussian distribution because of the convenience in calculation, but has an underfitting problem.
Chunsheng Guo   +5 more
doaj   +1 more source

Improved Bearings-Only Multi-Target Tracking with GM-PHD Filtering

open access: yesSensors, 2016
In this paper, an improved nonlinear Gaussian mixture probability hypothesis density (GM-PHD) filter is proposed to address bearings-only measurements in multi-target tracking.
Qian Zhang, Taek Lyul Song
doaj   +1 more source

Infinite Mixtures of Multivariate Gaussian Processes [PDF]

open access: yes, 2013
This paper presents a new model called infinite mixtures of multivariate Gaussian processes, which can be used to learn vector-valued functions and applied to multitask learning.
Sun, Shiliang
core   +1 more source

Ensemble image registration by a spatially constrained clustering approach

open access: yesInternational Journal of Advanced Robotic Systems, 2016
In this article, a novel spatially constrained clustering approach is proposed for ensemble image registration. We use a spatially constrained Gaussian mixture model, which is based on a joint Gaussian mixture model and Markov random field, to model the ...
Hao Zhu   +3 more
doaj   +1 more source

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