Results 41 to 50 of about 13,554 (180)

RST Resilient Watermarking Scheme Based on DWT-SVD and Scale-Invariant Feature Transform

Algorithms, 2017
Currently, most digital image watermarking schemes are affected by geometric attacks like rotation, scaling, and translation (RST). In the watermark embedding process, a robust watermarking scheme is proposed against RST attacks.
Yunpeng Zhang, Chengyou Wang, Xiao Zhou
doaj   +1 more source

Affine‐scale invariant feature transform and two‐dimensional principal component analysis: a novel framework for affine and scale invariant face recognition

IET Computer Vision, 2016
Face recognition (FR) is one of the most effervescent fields of research with extensive applications that span numerous domains, and it stands resolutely as one of the most challenging problems in computer vision.
Vinay. A, Vinay S. Shekhar, Akshay Kumar C, Natarajan. S, K.N. Balasubramanya Murthy   +4 more
doaj   +1 more source

Integrated Velocity Measurement Algorithm Based on Optical Flow and Scale-Invariant Feature Transform

IEEE Access, 2019
The pyramid Lucas-Kanade (LK) optical flow algorithm has been widely used in velocity measurement applications. However, these applications are limited by some shortcomings of the algorithm, such as its slow calculation speed and susceptibility to ...
Xiaochen Liu, Xiaoting Guo, Donghua Zhao, Huiliang Cao, Jun Tang, Chenguang Wang, Chong Shen, Jun Liu   +7 more
doaj   +1 more source

Learning Robust Feature Descriptor for Image Registration With Genetic Programming

IEEE Access, 2020
The robustness and accuracy of feature descriptor are two essential factors in the process of image registration. Existing feature descriptors can extract important image features, but it may be difficult to find enough correct correspondences for ...
Yue Wu, Qingxiu Su, Wenping Ma, Shaodi Liu, Qiguang Miao   +4 more
doaj   +1 more source

Hexagonal scale invariant feature transform (H-SIFT) for facial feature extraction

Journal of Applied Research and Technology, 2015
AbstractFeature transformation and key-point identifi is the solution to many local feature descriptors. One among such descriptor is the Scale Invariant Feature Transform (SIFT). A small effort has been made for designing a hexagonal sampled SIFT feature descriptor with its applicability in face recognition tasks. Instead of using SIFT on square image
Azeem, A., Sharif, M., Shah, J.H., Raza, M.   +3 more
openaire   +1 more source

A Local Feature Descriptor Based on SIFT for 3D Pollen Image Recognition

IEEE Access, 2019
Biological particle automatic classification is an important issue in index tasking for people with pollen hypersensitivity. This paper attempts to present a local feature extraction method based on SIFT for automatic 3D pollen image recognition.
Zhuo Wang, Wenzheng Bao, Da Lin, Zixuan Wang   +3 more
doaj   +1 more source

Terahertz Imaging of ICs Using K-means Clustering for Scale-Invariant Feature Transform Feature and Fusion Model of Wavelet Transform [PDF]

, 2021
Xiao-Xiang Pu, Chih‐Cheng Chen, Tiejun Li, Wei‐Lung Mao, Zhen Liu   +4 more
openalex   +1 more source

Automated identification of Lauraceae by scale-invariant feature transform [PDF]

Journal of Wood Science, 2017
An image dataset of the cross-sectional optical micrographs of the Lauraceae species including 39 species in 11 genera, capturing at least one full annual ring, was investigated by scale-invariant feature transform (SIFT), a computer vision-based feature extraction algorithm. We found an image of 900 × 900-pixel size at a pixel resolution of ca.
Sung-Wook Hwang, Kayoko Kobayashi, Shengcheng Zhai, Junji Sugiyama   +3 more
openaire   +1 more source

Scale‐invariant feature matching based on pairs of feature points

IET Computer Vision, 2015
On the basis of feature points pairing, a scale‐invariant feature matching method is proposed in this study. The distance between two features is used to compute feature pairs' support region size, which is different from the methods using detectors to ...
Zhiheng Wang, Zhifei Wang, Hongmin Liu, Zhanqiang Huo   +3 more
doaj   +1 more source

Retinal image mosaicking using scale-invariant feature transformation feature descriptors and Voronoi diagram

Journal of Medical Imaging, 2020
Purpose: Peripheral retinal lesions substantially increase the risk of diabetic retinopathy and retinopathy of prematurity. The peripheral changes can be visualized in wide field imaging, which is obtained by combining multiple images with an overlapping field of view using mosaicking methods.
Jalil, Jalili, Sedigheh M, Hejazi, Mohammad, Riazi-Esfahani, Arash, Eliasi, Mohsen, Ebrahimi, Mojtaba, Seydi, Masoud Aghsaei, Fard, Alireza, Ahmadian   +7 more
openaire   +3 more sources