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Applied Sciences
Article . 2025 . Peer-reviewed
License: CC BY
Data sources: Crossref
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Applied Sciences
Article . 2025
Data sources: DOAJ
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A Local Discrete Feature Histogram for Point Cloud Feature Representation

Authors: Linjing Jia; Cong Li; Guan Xi; Xuelian Liu; Da Xie; Chunyang Wang;

A Local Discrete Feature Histogram for Point Cloud Feature Representation

Abstract

Local feature descriptors are a critical problem in computer vision; the majority of current approaches find it difficult to achieve a balance between descriptiveness, robustness, compactness, and efficiency. This paper proposes the local discrete feature histogram (LDFH), a novel local feature descriptor, as a solution to this problem. The LDFH descriptor is constructed based on a robust local reference frame (LRF). It partitions the local space based on radial distance and calculates three geometric features, including the normal deviation angle, polar angle, and normal lateral angle, in each subspace. These features are then discretized to generate three feature statistical histograms, which are combined using a weighted fusion strategy to generate the final LDFH descriptor. Experiments on public datasets demonstrate that, compared with the existing methods, LDFH strikes an excellent balance between descriptiveness, robustness, compactness, and efficiency, making it suitable for various scenes and sensor datasets.

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Keywords

local reference frame, 3D representation, Technology, QH301-705.5, T, Physics, QC1-999, Engineering (General). Civil engineering (General), computer vision, Chemistry, TA1-2040, Biology (General), local feature descriptor, QD1-999, point cloud

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold