Results 31 to 40 of about 22,214 (311)

SCALE INVARIANT FEATURE TRANSFORM PLUS HUE FEATURE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
This paper presents an enhanced method for extracting invariant features from images based on Scale Invariant Feature Transform (SIFT). Although SIFT features are invariant to image scale and rotation, additive noise, and changes in illumination but we ...
M. B.Daneshvar
doaj   +1 more source

An improved localization method for lesion area in gynecological ultrasound image

open access: yesEURASIP Journal on Image and Video Processing, 2020
The false positive and false negative rates of current image localization methods in gynecological lesion area are high because the effectiveness is affected by random noise.
Sujuan Yan, Hong Jin
doaj   +1 more source

Robust Descriptor Algorithm Considering the Changing Gray Value Trends Inside Ground Objects for Heterogeneous Optical Image Matching

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Differences in sensor types, resolutions, and imaging conditions can lead to considerable spectral differences in heterogeneous optical remote sensing images and the similarity of scale-invariant feature transform (SIFT) or local self-similarities (LSS ...
Li Xue, Yehua Sheng, Ka Zhang
doaj   +1 more source

A Hybrid Robust Image Watermarking Method Based on DWT-DCT and SIFT for Copyright Protection

open access: yesJournal of Imaging, 2021
In this paper, a robust hybrid watermarking method based on discrete wavelet transform (DWT), discrete cosine transform (DCT), and scale-invariant feature transformation (SIFT) is proposed.
Mohamed Hamidi   +3 more
doaj   +1 more source

Robust image hashing using SIFT feature points and DWT approximation coefficients

open access: yesICT Express, 2018
This study proposes a robust hashing method using scale-invariant feature transform (SIFT) features points and discrete wavelet transform (DWT) approximation coefficients for image authentication.
Lokanadham Naidu Vadlamudi   +2 more
doaj   +1 more source

Improving the matching precision of SIFT [PDF]

open access: yes, 2014
International audienceMatching precision of scale-invariant feature transform (SIFT) is evaluated and improved in this paper. The aim of the paper is not to invent a new feature detector more invariant than the others.
Monasse, Pascal   +2 more
core   +4 more sources

Improved SIFT algorithm for place categorization [PDF]

open access: yes, 2015
The main aim of this paper is an improvement of the famous Scale Invariant Feature Transform (SIFT) algorithm used in place categorization. Masking approach to reduce the computational complexity of SIFT have been proposed.
Ahmad, Siti Anom   +3 more
core   +1 more source

Currency recognition using a smartphone: Comparison between color SIFT and gray scale SIFT algorithms

open access: yesJournal of King Saud University: Computer and Information Sciences, 2017
Banknote recognition means classifying the currency (coin and paper) to the correct class. In this paper, we developed a dataset for Jordanian currency.
Iyad Abu Doush, Sahar AL-Btoush
doaj   +1 more source

HSI-MSER: Hyperspectral Image Registration Algorithm Based on MSER and SIFT

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Image alignment is an essential task in many applications of hyperspectral remote sensing images. Before any processing, the images must be registered.
Alvaro Ordonez   +3 more
doaj   +1 more source

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