Results 21 to 30 of about 38,848 (118)

An Evaluation of Image Feature Detectors Based on Spatial Density and Temporal Robustness in Microsurgical Image Processing

open access: yesCurrent Directions in Biomedical Engineering, 2019
Optical image processing is part of many applications used for brain surgeries. Microscope camera, or patient movement, like brain-movement through the pulse or a change in the liquor, can cause the image processing to fail.
Sieler Konstantin   +2 more
doaj   +1 more source

MBR-SIFT: A mirror reflected invariant feature descriptor using a binary representation for image matching. [PDF]

open access: yesPLoS ONE, 2017
The traditional scale invariant feature transform (SIFT) method can extract distinctive features for image matching. However, it is extremely time-consuming in SIFT matching because of the use of the Euclidean distance measure. Recently, many binary SIFT
Mingzhe Su   +4 more
doaj   +1 more source

CGCI-SIFT: A More Efficient and Compact Representation of Local Descriptor

open access: yesMeasurement Science Review, 2013
This paper proposes a novel invariant local descriptor, a combination of gradient histograms with contrast intensity (CGCI), for image matching and object recognition.
Su Dongliang   +4 more
doaj   +1 more source

Comparative Analysis of Keypoint Detection Performance in SIFT Implementations on Small-Scale Image Datasets

open access: yesJournal of Innovation Information Technology and Application
Scale-invariant feature transform (SIFT) is widely used as an image local feature extraction method because of its invariance to rotation, scale, and illumination change. SIFT has been implemented in different program libraries.
Arif Rahman   +4 more
doaj   +1 more source

Similarity Evaluation of Patent Drawings using ResNet and SIFT

open access: yesJournal of Intellectual Property
The study of the similarity evaluation and retrieval of patent documents is critical not only for the efficient management of patent literature, but also for the rapid and effective collection of information in industrial and technological fields. Patent
Hyuna Kim   +3 more
doaj   +1 more source

Image processing for feature detection and extraction [PDF]

open access: yesINCAS Bulletin
The present paper aims to conduct an experiment that compares different methods of detecting objects in images. Programs were developed to evaluate the efficiency of SURF, BRISK, MSER, and ORB object detection methods.
Nicolae APOSTOLESCU   +1 more
doaj   +1 more source

DeepFake Video Production and SIFT-based Analysis

open access: yesTelfor Journal, 2020
Nowadays advantages in face-based modification using DeepFake algorithms made it possible to replace a face of one person with a face of another person.
M. Đorđević   +2 more
doaj   +1 more source

Automatic mosaic method of remote sensing images based on machine vision

open access: yesКомпьютерная оптика
Unmanned Aerial Vehicle (UAV) remote sensing is a commonly used technical means in modern science and technology, but currently, remote sensing images captured by UAVs need to be spliced to obtain more comprehensive information.
S.P. Gao, M. Xia, S.J. Zhang
doaj   +1 more source

Automatic Orientation Estimation of Inertial Sensors in C-Arm CT Projections

open access: yesCurrent Directions in Biomedical Engineering, 2019
To obtain CT images of the knee joint in a more lifelike position, data acquisition can be performed with patients in standing rather than in lying position. However, in that situation, people tend to show involuntary motion.
Thies Mareike   +6 more
doaj   +1 more source

Image Segmentation and Feature Extraction Using Sift-Sad Algorithm for Disparity Map Generation

open access: yesCommunications, 2013
In this paper, a stereo matching algorithm based on image segments and disparity measurement using stereo images is presented. We propose the hybrid segmentation algorithm that is based on a combination of the Belief Propagation and Mean Shift algorithms
Patrik Kamencay   +5 more
doaj   +1 more source

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