Topics

A new fast filtering algorithm for a 3D point cloud based on RGB-D information.

08:00 EDT 16th August 2019 | BioPortfolio

Summary of "A new fast filtering algorithm for a 3D point cloud based on RGB-D information."

A point cloud that is obtained by an RGB-D camera will inevitably be affected by outliers that do not belong to the surface of the object, which is due to the different viewing angles, light intensities, and reflective characteristics of the object surface and the limitations of the sensors. An effective and fast outlier removal method based on RGB-D information is proposed in this paper. This method aligns the color image to the depth image, and the color mapping image is converted to an HSV image. Then, the optimal segmentation threshold of the V image that is calculated by using the Otsu algorithm is applied to segment the color mapping image into a binary image, which is used to extract the valid point cloud from the original point cloud with outliers. The robustness of the proposed method to the noise types, light intensity and contrast is evaluated by using several experiments; additionally, the method is compared with other filtering methods and applied to independently developed foot scanning equipment. The experimental results show that the proposed method can remove all type of outliers quickly and effectively.

Affiliation

Journal Details

This article was published in the following journal.

Name: PloS one
ISSN: 1932-6203
Pages: e0220253

Links

DeepDyve research library

PubMed Articles [24543 Associated PubMed Articles listed on BioPortfolio]

Gaussian Noise Removal in an Image using Fast Guided Filter and its Method Noise Thresholding in Medical Healthcare Application.

A new denoising algorithm using Fast Guided Filter and Discrete Wavelet Transform is proposed to remove Gaussian noise in an image. The Fast Guided Filter removes some part of the details in addition ...

Anisotropic Denoising of 3D Point Clouds by Aggregation of Multiple Surface-Adaptive Estimates.

3D point clouds commonly contain positional errors which can be regarded as noise. We propose a point cloud denoising algorithm based on aggregation of multiple anisotropic estimates computed on local...

Measurement of cloud particles in a cloud chamber based on interference technology.

Based on interference technology, a cloud particle measurement system is designed. The scattering angle of the system is selected as 90°. The iterative mean filter algorithm is modified, and the syst...

Scalable Distributed Filtering for a Class of Discrete-Time Complex Networks Over Time-Varying Topology.

This article is concerned with the distributed filtering problem for a class of discrete complex networks over time-varying topology described by a sequence of variables. In the developed scalable fil...

Calibration and measurement analysis of a cloud particle detection system based on polarization detection.

The phase state information of cloud water is important for the airborne measurement of the microphysical properties of a cloud. A cloud particle detection system based on polarization detection, whic...

Clinical Trials [9502 Associated Clinical Trials listed on BioPortfolio]

The Effect of a Blue Light Filtering IOL

To compare the effect on blood retinal barrier disruption 3 and 12 months after implantation of either a blue light filtering intraocular lens(blue-filtering IOL) or an ultraviolet light f...

Conventional Versus Point-of-care Based Coagulation Management

The purpose of the study is to determine the efficacy of two different algorithms for coagulation management in patients undergoing cardiac surgery suffering from increased bleeding tenden...

Fluorouracil Filtering Surgery Study (FFSS)

To determine whether postoperative subconjunctival injections of 5-fluorouracil (5-FU) increase the success rate of filtering surgery in patients at high risk for failure after standard gl...

Fearon Algorithm in Warfarin Patient Self-Management

This study aims to explore the feasibility of a novel, patient-specific algorithm for adjusting warfarin doses during chronic anticoagulation therapy. Specifically investigators are intere...

Validation of an Artificial Intelligence-based Algorithm for Skeletal Age Assessment

The purpose of this study is to understand the effects of using a Artificial Intelligence algorithm for skeletal age estimation as a computer-aided diagnosis (CADx) system. In this prospec...

Medical and Biotech [MESH] Definitions

Measurement of blood flow based on induction at one point of the circulation of a known change in the intravascular heat content of flowing blood and detection of the resultant change in temperature at a point downstream.

An analytical transmission electron microscopy method using an electron microscope fitted with an energy filtering lens. The method is based on the principle that some of the ELECTRONS passing through the specimen will lose energy when they ionize inner shell electrons of the atoms in the specimen. The amount of energy loss is dependent upon the element. Analysis of the energy loss spectrum (ELECTRON ENERGY-LOSS SPECTROSCOPY) reveals the elemental composition of a specimen. It is used analytically and quantitatively to determine which, how much of, and where specific ELEMENTS are in a sample. For example, it is used for elemental mapping of PHOSPHORUS to trace the strands of NUCLEIC ACIDS in nucleoprotein complexes.

A mass spectrometric technique that is used for the analysis of a wide range of biomolecules, such as glycoalkaloids, glycoproteins, polysaccharides, and peptides. Positive and negative fast atom bombardment spectra are recorded on a mass spectrometer fitted with an atom gun with xenon as the customary beam. The mass spectra obtained contain molecular weight recognition as well as sequence information.

Signal and data processing method that uses decomposition of wavelets to approximate, estimate, or compress signals with finite time and frequency domains. It represents a signal or data in terms of a fast decaying wavelet series from the original prototype wavelet, called the mother wavelet. This mathematical algorithm has been adopted widely in biomedical disciplines for data and signal processing in noise removal and audio/image compression (e.g., EEG and MRI).

Laboratory and other services provided to patients at the bedside. These include diagnostic and laboratory testing using automated information entry.

Quick Search


DeepDyve research library

Searches Linking to this Article