نتایج جستجو برای: fuzzy smoothing filter

تعداد نتایج: 230027  

2017
Xiaohong Zhang Yingcang Ma Florentin Smarandache

Neutrosophic set is a new mathematical tool for handling problems involving imprecise, indeterminacy and inconsistent data. Pseudo-BCI algebra is a kind of non-classical logic algebra in close connection with various non-commutative fuzzy logics. Recently, we applied neutrosophic set theory to pseudo-BCI algebras. In this paper, we study neutrosophic filters in pseudo-BCI algebras. The concepts...

2013
Asmatullah Chaudhry Jin Young Kim Tran Anh Tuan

In this paper, we perform an experimental study to investigate directional variograms in punctual kriging and consequently its effect on image restoration. We employ punctual kriging in conjunction with fuzzy logic typeII and fuzzy smoothing based approaches to remove white Gaussian noise from corrupted images. Images degraded with Gaussian white noise are restored by first utilizing fuzzy logi...

2013
Pituk Bunnoon

The multi-point values of an appropriate smoothing parameter of HP-filter algorithm for midterm electricity load demand (MELD) forecasting are proposed. The case study employs the data based on the organization of the Electricity Generating Authority of Thailand (EGAT). The research shows the growth at rate of weather and economic factors influencing to the electricity demand. The main focus of...

2016
Yu Nishiyama Amir Afsharinejad Shunsuke Naruse Byron Boots Le Song

Recently, significant progress has been made developing kernel mean expressions for Bayesian inference. An important success in this domain is the nonparametric kernel Bayes’ filter (nKB-filter), which can be used for sequential inference in state space models. We expand upon this work by introducing a smoothing algorithm, the nonparametric kernel Bayes’ smoother (nKB-smoother) which relies on ...

2011
Dave Hale D. Hale

Bilateral filtering is widely used to enhance photographic images, but in most implementations is poorly suited to seismic images. A bilateral filter consists of two filter kernels. By replacing one of those kernels with a smoothing filter that conforms to image structures, we obtain a bilateral filter suitable for seismic image processing. Examples and comparison with conventional edge-preserv...

2005
Jaewon Seo Jang Gyu Lee Chan Gook Park Hyung Keun Lee Seong-Baek Kim

The application of smoothing in the integrated navigation system of 4S-Van is considered. 4S-Van is a mobile mapping system, which provides the position information of various objects on the road. For navigation purpose, it has various sensors such as an inertial measurement unit, a GPS receiver and an odometer. It is also equipped with CCD cameras, laser scanners and video cameras, for mapping...

2017
Zied Bouyahia Stéphane Derrode Wojciech Pieczynski

In this paper, we address the exact smoothing problem of Conditionally Gaussian Observed Markov Switching Model (CGOMSM). The proposed approach tackles the discontinuity feature in switching regime models by incorporating fuzzy switches instead of hard jumps. Fuzzy switched based approach is more adapted to real-world application in which regime continuity is an intrinsic property. We define, w...

Journal: :Nihon Hoshasen Gijutsu Gakkai zasshi 2013
Yutaka Katayama Kentaro Ueda Shinsaku Hiura Takashi Yamanaga Hisanori Miyoshi Masahiro Ohmura Yoshihiro Shimonishi Hiroyuki Tsushima Shigeaki Higashiyama Joji Kawabe Susumu Shiomi

The aim of this study is to improve the image quality using a post process rather than a correction process at acquisition time. We used a smoothing filter that is widely used on a compact digital camera. Especially for nuclear medicine, when we use a short acquisition time, we will get images that have a large increase in statistical noise. For those images, we validated the efficiency of the ...

2006
Weijie Chen

Magnetic resonance images are often corrupted byintensity inhomogeneity, which manifests itself as slow intensityvariations of the same tissue over the image domain. Suchshading artifacts must be corrected before doing computerizedanalysis such as intensity-based segmentation and quantitativeanalysis. In this paper, we present a fuzzy c-means (FCM)based algorithm that si...

2011
Yi Liu

Abstract Extending the belongs to (∈) relation and quasi-coincidence with(q) relation between fuzzy points and a fuzzy subsets, the concept of (α, β)-fuzzy filters and (α, β)-fuzzy filters of lattice implication algebras are introduced, where α, β ∈ {∈h , qδ, ∈h ∨qδ, ∈h ∧qδ}, α, β ∈ {∈h, qδ, ∈h ∨ qδ, ∈h ∧ qδ} but α ∈h ∧qδ, α ∈h ∧ qδ, respectively, and some related properties are investigated. S...

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