Results 51 to 60 of about 4,627,276 (412)

Plant leaf tooth feature extraction.

open access: yesPLoS ONE, 2019
Leaf tooth can indicate several systematically informative features and is extremely useful for circumscribing fossil leaf taxa. Moreover, it can help discriminate species or even higher taxa accurately.
Hu Wang   +4 more
doaj   +1 more source

Ripeness identification of chayote fruits using HSI and LBP feature extraction with KNN classification

open access: yesIlkom Jurnal Ilmiah, 2022
This study aims to build a system to identify the ripeness level of chayote that can be done easily and without damaging the quality of the chayote.
Siska Anraeni   +2 more
doaj   +1 more source

A new kernel method for hyperspectral image feature extraction [PDF]

open access: yes, 2017
Hyperspectral image provides abundant spectral information for remote discrimination of subtle differences in ground covers. However, the increasing spectral dimensions, as well as the information redundancy, make the analysis and interpretation of ...
Gao, Lianru   +3 more
core   +1 more source

Coloring Local Feature Extraction [PDF]

open access: yes, 2006
Although color is commonly experienced as an indispensable quality in describing the world around us, state-of-the art local feature-based representations are mostly based on shape description, and ignore color information. The description of color is hampered by the large amount of variations which causes the measured color values to vary ...
van de Weijer, Joost, Schmid, Cordelia
openaire   +4 more sources

Feature Extraction Methods: A Review

open access: yesJournal of Physics: Conference Series, 2020
Feature extraction is the main core in diagnosis, classification, clustering, recognition, and detection. Many researchers may by interesting in choosing suitable features that used in the applications.
Wamidh K. Mutlag   +3 more
semanticscholar   +1 more source

Text feature extraction based on deep learning: a review

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
Selection of text feature item is a basic and important matter for text mining and information retrieval. Traditional methods of feature extraction require handcrafted features. To hand-design, an effective feature is a lengthy process, but aiming at new
Hong Liang   +3 more
doaj   +1 more source

Multi-Label Feature Extraction Method Relied on Feature-Label Dependence Auto-encoder

open access: yesJisuanji kexue yu tansuo, 2020
In multi-label learning, how to deal with high-dimensional features has always been one of the research difficulties. The feature extraction algorithm can effectively solve the problem of classification performance degra-dation caused by high ...
CHENG Yusheng, LI Zhiwei, PANG Shufang
doaj   +1 more source

Feature extraction method of ship radiated noise based on BOA-VMD and slope entropy

open access: yesFrontiers in Physics, 2022
Although the technical requirements for the feature extraction of ship radiated noise (SRN) in the fields of national defense and economy increase with each passing day, the complexity of the marine environment makes the feature extraction of SRN ...
Yingmin Yi, Yingmin Yi, Ge Tian
doaj   +1 more source

An analysis of Feature extraction and Classification Algorithms for Dangerous Object Detection [PDF]

open access: yes, 2017
One of the important practical applications of object detection and image classification can be for security enhancement. If dangerous objects e.g. knives can be identified automatically, then a lot of violence can be prevented. For this purpose, various
HASAN, Mohammad, Kibria, Sakib B.
core   +1 more source

Research on Feature Extraction of Ship-Radiated Noise Based on Multiscale Fuzzy Dispersion Entropy

open access: yesJournal of Marine Science and Engineering, 2023
In recent years, fuzzy dispersion entropy (FDE) has been proposed and used in the feature extraction of various types of signals. However, FDE can only analyze a signal from a single time scale during practical application and ignores some important ...
Yuxing Li   +3 more
doaj   +1 more source

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