Results 11 to 20 of about 178,695 (309)

Retinal Identification Based on an Improved Circular Gabor Filter and Scale Invariant Feature Transform [PDF]

open access: yesSensors, 2013
Retinal identification based on retinal vasculatures in the retina provides the most secure and accurate means of authentication among biometrics and has primarily been used in combination with access control systems at high security facilities. Recently,
Xiaoming Xi   +3 more
doaj   +2 more sources

A Zero-Watermarking Algorithm Based on Scale-Invariant Feature Reconstruction Transform [PDF]

open access: goldApplied Sciences
In order to effectively protect and verify the copyright information of multimedia digital works, this paper proposes a zero-watermarking algorithm based on carrier image feature point descriptors.
Fan Li, Zhong-Xun Wang
doaj   +2 more sources

Image Watermarking Scheme Based on Scale-Invariant Feature Transform [PDF]

open access: bronzeKSII Transactions on Internet and Information Systems, 2014
In this paper, a robust watermarking scheme is proposed that uses the scale-invariant feature transform (SIFT) algorithm in the discrete wavelet transform (DWT) domain. First, the SIFT feature areas are extracted from the original image. Then, one level DWT is applied on the selected SIFT feature areas.
Wanli Lyu   +3 more
openaire   +2 more sources

Image Feature Extraction and Matching of Augmented Solar Images in Space Weather

open access: yesKongjian kexue xuebao, 2023
Augmented solar images were used to research the adaptability of four representative image extraction and matching algorithms in space weather domain.
WANG Rui, BAO Lili, CAI Yanxia
doaj   +1 more source

An Improved ASIFT Image Feature Matching Algorithm Based on POS Information

open access: yesSensors, 2022
The affine scale-invariant feature transform (ASIFT) algorithm is a feature extraction algorithm with affinity and scale invariance, which is suitable for image feature matching using unmanned aerial vehicles (UAVs).
Junchai Gao, Zhen Sun
doaj   +1 more source

SIFT-GVF-based lung edge correction method for correcting the lung region in CT images

open access: yesPLoS ONE, 2023
Juxtapleural nodules were excluded from the segmented lung region in the Hounsfield unit threshold-based segmentation method. To re-include those regions in the lung region, a new approach was presented using scale-invariant feature transform and ...
Xin Li   +4 more
doaj   +2 more sources

$n$-SIFT: $n$-Dimensional Scale Invariant Feature Transform [PDF]

open access: yesIEEE Transactions on Image Processing, 2009
We propose the n-dimensional scale invariant feature transform (n-SIFT) method for extracting and matching salient features from scalar images of arbitrary dimensionality, and compare this method's performance to other related features. The proposed features extend the concepts used for 2-D scalar images in the computer vision SIFT technique for ...
Warren, Cheung, Ghassan, Hamarneh
openaire   +2 more sources

Scale-Invariant Feature Transform Algorithm with Fast Approximate Nearest Neighbor

open access: yesمجلة بغداد للعلوم, 2017
There is a great deal of systems dealing with image processing that are being used and developed on a daily basis. Those systems need the deployment of some basic operations such as detecting the Regions of Interest and matching those regions, in ...
Ekhlas Khalaf Gbash, Suha Mohammed Saleh
doaj   +3 more sources

Pemanfaatan Scale Invariant Feature Transform Berbasis Saliency untuk Klasifikasi Sel Darah Putih

open access: yesJuTISI (Jurnal Teknik Informatika dan Sistem Informasi), 2021
White blood cells are cells that makeup blood components that function to fight various diseases from the body (immune system). White blood cells are divided into five types, namely basophils, eosinophils, neutrophils, lymphocytes, and monocytes ...
Yohannes Yohannes   +2 more
doaj   +1 more source

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