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- research-articleJuly 2024
3D surface segmentation from point clouds via quadric fits based on DBSCAN clustering
AbstractExtracting surfaces from 3D point clouds is significant in reconstructing and transforming these discrete points into their corresponding models. Scanned point clouds are often accompanied by noise, and the existing methods mainly rely on local ...
Highlights- A normal estimation method based on neighborhood information reconstruction is proposed to provide reliable feature information for subsequent segmentation.
- A subdivision strategy is designed to extend the DBSCAN clustering algorithm ...
- research-articleMay 2023
A local tangent plane distance-based approach to 3D point cloud segmentation via clustering
Highlights- A new similarity measure is proposed based on point-to-plane distance. This metric is able to give high and low similarities between coplanar and non-coplanar points, and reconstructing point clouds in 3D space can simplify the ...
This paper proposes an effective measure for the planar segmentation problem based on the clustering method. It uses the distance from a point to the local plane as a metric to characterize the relationship between data. As a result, the data ...
- research-articleSeptember 2021
Few-Shot Action Localization without Knowing Boundaries
ICMR '21: Proceedings of the 2021 International Conference on Multimedia RetrievalAugust 2021, Pages 339–348https://doi.org/10.1145/3460426.3463643Learning to localize actions in long, cluttered, and untrimmed videos is a hard task, that in the literature has typically been addressed assuming the availability of large amounts of annotated training samples for each class -- either in a fully-...
- research-articleJanuary 2021
Research on Adaptive NURBS Interpolation Algorithm for 3D Engraving of Manipulators
CCRIS '20: Proceedings of the 2020 1st International Conference on Control, Robotics and Intelligent SystemOctober 2020, Pages 32–36https://doi.org/10.1145/3437802.3437808In the process of engraving three-dimensional (3D) complex shape using manipulators, there are many inflection points and many start-stop operation, which cause shock easily. To resolve these problems, an adaptive NURBS curve interpolation algorithm ...
- ArticleOctober 2012
A Method for Detection of Foreign Body in Cotton Based on Threshold Segment
ICECC '12: Proceedings of the 2012 International Conference on Electronics, Communications and ControlOctober 2012, Pages 107–110In order to extract foreign body from the complex channel background and cotton layers, a detection method which combined improved Otsu threshold with background estimation threshold is presented. Firstly, the original image which containing multiple ...
- articleFebruary 2008
Studies on the degradation properties of the ZnO-based ceramic film varistors
Microelectronic Engineering (MCEE), Volume 85, Issue 2February, 2008, Pages 371–374https://doi.org/10.1016/j.mee.2007.07.011The accelerating-degraded method with ac and dc fields was used to study the degradation properties of the ZnO-based ceramic film varistors. When acted on the dc bias, the J-V curve of the ZnO-based ceramic film varistors shows distinct dissymmetry, and ...
- ArticleJuly 2007
Optimization Framework for Distributed Clustering Scheme in Wireless Sensor Networks
SNPD '07: Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 02July 2007, Pages 26–31https://doi.org/10.1109/SNPD.2007.404Recently there have been growing interests in the applications of wireless sensor networks. Innovative techniques that improve energy efficiency to prolong the network lifetime are highly required. Clustering is an effective topology control approach and ...
- articleMarch 2007
MRST: an efficient monitoring technology of summarization on stream data
Journal of Computer Science and Technology (JCST), Volume 22, Issue 2March 2007, Pages 190–196https://doi.org/10.1007/s11390-007-9025-7Monitoring on data streams is an efficient method of acquiring the characters of data stream. However the available resources for each data stream are limited, so the problem of how to use the limited resources to process infinite data stream is an open ...
- articleDecember 2006
A new node organization mechanism of a campus Grid and performance analysis: Research Articles
Concurrency and Computation: Practice & Experience (CCOMP), Volume 18, Issue 14December 2006, Pages 1787–1798This paper proposes a new node organization mechanism in the storage service provided by the Campus Grid Service Environment. The advantage of this architecture is its ability to aggregate nodes in the order of millions; the corresponding storage space ...