Results 1 to 10 of about 42,023 (146)

An efficient outlier removal method for scattered point cloud data. [PDF]

open access: yesPLoS ONE, 2018
Outlier removal is a fundamental data processing task to ensure the quality of scanned point cloud data (PCD), which is becoming increasing important in industrial applications and reverse engineering.
Xiaojuan Ning   +3 more
doaj   +2 more sources

Iterative Outlier Removal: A Method for Identifying Outliers in Laboratory Recalibration Studies. [PDF]

open access: yesClin Chem, 2016
AbstractBACKGROUNDExtreme values that arise for any reason, including those through nonlaboratory measurement procedure-related processes (inadequate mixing, evaporation, mislabeling), lead to outliers and inflate errors in recalibration studies. We present an approach termed iterative outlier removal (IOR) for identifying such outliers.METHODSWe ...
Parrinello CM   +8 more
europepmc   +4 more sources

Neural Network-Based Stereo Vision Outlier Removal [PDF]

open access: yesMATEC Web of Conferences, 2022
Stereo vision systems rely on accurate feature matching to provide valid stereo reconstruction and pose estimation. This accuracy is achieved through outlier removal techniques, such as RANSAC. However, images also contain semantic information, which can
Strauss March, van Daalen Corné E.
doaj   +2 more sources

Improved Ellipse Fitting Algorithm with Outlier Removal [PDF]

open access: yesJisuanji kexue, 2022
The results of ellipse fitting can be considerably distorted by outliers in the fitted point set.To tackle this problem, three improved ellipse fitting algorithms, one of which is based on least trimmed square, and the other two on dual point removal ...
GUO Si-yu, WU Yan-dong
doaj   +2 more sources

Clustering With Outlier Removal [PDF]

open access: yesIEEE Transactions on Knowledge and Data Engineering, 2021
Cluster analysis and outlier detection are strongly coupled tasks in data mining area. Cluster structure can be easily destroyed by few outliers; on the contrary, outliers are defined by the concept of cluster, which are recognized as the points belonging to none of the clusters.
Hongfu Liu, Jun Li, Yue Wu, Yun Fu
openaire   +2 more sources

Heteroscedasticity testing after outlier removal [PDF]

open access: yesEconometric Reviews, 2020
Given the effect that outliers can have on regression and specification testing, a vastly used robustification strategy by practitioners consists in: (i) starting the empirical analysis with an outlier detection procedure to deselect atypical data values; then (ii) continuing the analysis with the selected non-outlying observations.
Berenguer-Rico, V, Wilms, I
openaire   +1 more source

CAISOV: Collinear Affine Invariance and Scale-Orientation Voting for Reliable Feature Matching

open access: yesRemote Sensing, 2022
Reliable feature matching plays an important role in the fields of computer vision and photogrammetry. Due to the complex transformation model caused by photometric and geometric deformations, and the limited discriminative power of local feature ...
Haihan Luo   +5 more
doaj   +1 more source

STAR_outliers: a python package that separates univariate outliers from non-normal distributions

open access: yesBioData Mining, 2023
There are not currently any univariate outlier detection algorithms that transform and model arbitrarily shaped distributions to remove univariate outliers.
John T. Gregg, Jason H. Moore
doaj   +1 more source

Outlier removal using duality [PDF]

open access: yes2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2010
In this paper we consider the problem of outlier removal for large scale multiview reconstruction problems. An efficient and very popular method for this task is RANSAC. However, as RANSAC only works on a subset of the images, mismatches in longer point tracks may go undetected. To deal with this problem we would like to have, as a post processing step
Olsson, Carl   +2 more
openaire   +2 more sources

Effects of Using Different Indirect Techniques on the Calculation of Reference Intervals: Observational Study

open access: yesJournal of Medical Internet Research, 2023
BackgroundReference intervals (RIs) play an important role in clinical decision-making. However, due to the time, labor, and financial costs involved in establishing RIs using direct means, the use of indirect methods, based on ...
Dan Yang   +10 more
doaj   +1 more source

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