Results 21 to 30 of about 669,192 (265)

On measuring the distance between histograms [PDF]

open access: yesPattern Recognition, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sung-Hyuk Cha, Sargur N. Srihari
openaire   +1 more source

Distance Measurement of a Frequency-Shifted Sub-Terahertz Wave Source

open access: yesPhotonics, 2022
In this paper, we report the development of a frequency-shifted (FS) terahertz (THz) wave source for the non-destructive inspection of buildings. Currently, terahertz-time domain spectroscopy (THz-TDS) is the mainstream method for non-destructive ...
Minoru Honjo   +3 more
doaj   +1 more source

A frequency offset compensation method based on all phase FFT amplitude

open access: yes物联网学报, 2022
Distance measurement is an important part of the wireless location technology.The ranging accuracy of millimeter wave based distance measurement depends on the frequency estimation accuracy of beat signals from the targets, but the existing frequency ...
Yingjie ZHU   +3 more
doaj  

ACTIVE CONTOUR MODEL USING FRACTIONAL SYNC WAVE FUNCTION FOR MEDICAL IMAGE SEGMENTATION

open access: yesAsia-Pacific Journal of Information Technology and Multimedia, 2016
Intensity inhomogeneity occurs when pixels in medical images overlap due to anomalies in medical imaging devices. These anomalies lead to difficult medical image segmentation.
Norshaliza Kamaruddin
doaj   +1 more source

Phase Stability under Thermal Drifts in Photodiode-Conditioning Transimpedance Amplifiers for Distance Metrology

open access: yesSensors, 2021
Transimpedance amplifiers (TIA) are widely used for front-end signal conditioning in many optical distance measuring applications in which high accuracy is often required.
Francisco Javier Meca Meca   +3 more
doaj   +1 more source

Height-Variable Monocular Vision Ranging Technology for Smart Agriculture

open access: yesIEEE Access, 2023
Smart agriculture utilizes a variety of advanced technologies to promote sustainable agriculture and provide solutions for intelligent, automated and unmanned agriculture.
Tian Gao   +6 more
doaj   +1 more source

Recent Trends on a Precision Dimensional Sensor Using Optical Modulation Techniques [PDF]

open access: yes한국정밀공학회지, 2021
Optical dimensional metrology has playing a long-term key role from high-precision engineering to large-scale industrial manufacturing. Various methods of optical dimensional metrology have been proposed and demonstrated to respond to the ever-growing ...
Yoon-Soo Jang, Jungjae Park, Jonghan Jin
doaj   +1 more source

Hybrid Visible Light and Ultrasound-Based Sensor for Distance Estimation

open access: yesSensors, 2017
Distance estimation plays an important role in location-based services, which has become very popular in recent years. In this paper, a new short range cricket sensor-based approach is proposed for indoor location applications.
Jose Rabadan   +5 more
doaj   +1 more source

Towards Preventing Gaps in Health Care Systems through Smartphone Use: Analysis of ARKit for Accurate Measurement of Facial Distances in Different Angles

open access: yesSensors, 2023
There is a growing consensus in the global health community that the use of communication technologies will be an essential factor in ensuring universal health coverage of the world’s population.
Leon Nissen   +6 more
doaj   +1 more source

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