Research Highlight
Prof. Jichai Jeong`s paper accepted in IEEE/OSA Journal of Lightwave Technology | |||||
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Author | Administrator (IP: *.152.163.70) | Date | 2015-01-19 13:33 | Views | 916 |
![]() Prof. Jichai Jeong`s new research on `Accurate Wavelength Calibration Method for Spectrometer using Low Coherence Interferometry` was accepted in IEEE/OSA Journal of Lightwave Technology.
Title: Accurate Wavelength Calibration Method for Spectrometer using Low Coherence Interferometry
Abstract:
Dispersive spectrometers are subject to wavelength dispersion errors due to aberration, ruling errors, etc. Thus, their calibration forms an integral aspect of their usage. In this context, we present an interferometric wavelength calibration method for calibrating dispersive spectrometers. The calibration system is based on low coherence interferometry. By analyzing the sinusoidal interference patterns that are modulated in a spectrum, we determine the distribution of wavelengths in a spectrometer using the zero-crossing detection. The spectral sampling interval of the spectrometer is estimated by determining the sampling interval in the z-domain. Assigning only one wavelength to the corresponding camera pixel using a narrowband light source allows the determination of entire wavelengths accurately. We use the information of the wavelength distribution, spectral sampling interval, and wavelength data to achieve accurate calibration. Our experimental results show that the proposed method calibrates wavelengths more accurately than conventional methods since the interferometric calibration can reduce the wavelength fitting error arising from extrapolation. Moreover, the proposed calibration method can reduce the side-lobe amplitude maximally by 4.8 dB when applied to OCT imaging. We believe that our findings can significantly aid in the development of spectrometry.
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Prof. Byoung-Kyong Min's paper accepted in Hearing ResearchProf. Byoung-Kyong Min's new research, The Absence of Resting-state High-Gamma Cross-Frequency Coupling in Patients with Tinnitus was accepted in Hearing Research.Title: The Absence of Resting-state High-Gamma Cross-Frequency Coupling in Patients with Tinnitus Abstract:Tinnitus is a psychoacoustic phantom perception of currently unknown neuropathology. Despite a growing number of post-stimulus tinnitus studies, uncertainty still exists regar…2017-10-23 |
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Prof. Dong-Joo Kim's paper accepted in Journal of Neurosurgical AnesthesiologyProf. Dong-Joo Kim's new research, Hemodynamic Instability and Cardiovascular Events After Traumatic Brain Injury Predict Outcome After Artifact Removal With Deep Belief Network Analysis was accepted in Journal of Neurosurgical Anesthesiology.Title: Hemodynamic Instability and Cardiovascular Events After Traumatic Brain Injury Predict Outcome After Artifact Removal With Deep Belief Network AnalysisAbstract:- Background: Hemodynamic ins…2017-09-27 |
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Prof. Christian Wallraven’s paper accepted in Brain Structure and FunctionProf. Christian Wallraven’s new research on Neuroanatomical Correlates of Haptic Object Processing: Combined Evidence from Tractography and Functional Neuroimaging was accepted in Brain Structure and Function.Title: Neuroanatomical Correlates of Haptic Object Processing: Combined Evidence from Tractography and Functional NeuroimagingAbstract: Touch delivers a wealth of information already from birth, helping infants to acquire knowledge ab…2017-09-06 |
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Prof. Seong-Whan Lee's paper accepted in Human Brain MappingProf. Seong-Whan Lee's new research, Multiple Functional Networks Modeling for Autism Spectrum Disorder Diagnosis was accepted in Human Brain Mapping. Title: Multiple Functional Networks Modeling for Autism Spectrum Disorder Diagnosis AbstractDespite countless studies on Autism Spectrum Disorder (ASD), diagnosis relies on specific behavioral criteria and neuroimaging biomarkers for the disorder are still relatively scarce and …2017-08-08 |
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Prof. Seong-Whan Lee's paper accepted in IEEE Trans. on Neural Systems and Rehab…Prof. Seong-Whan Lee's new research, Motion-based Rapid Serial Visual Presentation for Gaze-Independent Brain-Computer Interfaces was accepted in IEEE Trans. on Neural Systems and Rehabilitation Engineering. Title: Motion-based Rapid Serial Visual Presentation for Gaze-Independent Brain-Computer Interfaces Abstract: Most event-related potential (ERP)-based brain-computer interface (BCI) spellers primarily use matrix layouts, …2017-08-02 |
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Prof. Dong-Joo Kim's paper accepted in NeurosurgeryProf. Dong-Joo Kim's new research, Abilities of a Densitometric Analysis of Computed Tomography Images and Hemorrhagic Parameters to Predict Outcome Favorability in Patients with Intracerebral Hemorrhagewas accepted in Neurosurgery. Title: Abilities of a Densitometric Analysis of Computed Tomography Images and Hemorrhagic Parameters to Predict Outcome Favorability in Patients with Intracerebral Hemorrhage Abstract: - Background: In…2017-06-20 |
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Prof. Byoung-Kyong Min's paper accepted in IEEE Transactions on Information Fore…Prof. Byoung-Kyong Min's new research, Individual Identification using Cognitive Electroencephalographic Neurodynamics was accepted in IEEE Transactions on Information Forensics and Security. Title: Individual Identification using Cognitive Electroencephalographic Neurodynamics Abstract:As the brain is a unique biological system that reflects the subtle distinctions in the mental attributes of individual humans, electroencephalogra…2017-05-04 |
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Prof. Byoung-Kyong Min's paper accepted in Trends in BiotechnologyProf. Byoung-Kyong Min's new research, Harnessing Prefrontal Cognitive Signals for Brain-Machine Interfaces was accepted in Trends in Biotechnology. Title: Harnessing Prefrontal Cognitive Signals for Brain-Machine Interfaces Abstract:Brain-machine interfaces (BMIs) enable humans to interact with devices by modulating their brain signals. Despite impressive technological advancements, several obstacles remain. The most commonly…2017-03-15 |
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Prof. Seong-Whan Lee's paper accepted in IEEE Trans. on Pattern Analysis and Mac…Prof. Seong-Whan Lee's new research, A Novel Linelet-based Representation for Line Segment Detection was accepted in IEEE Trans. on Pattern Analysis and Machine Intelligence. Title: A Novel Linelet-based Representation for Line Segment Detection Abstract: This paper proposes a method for line segment detection in digital images.We propose a novel linelet-based representation to model intrinsic properties of line segments in rasterized image …2017-02-14 |
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Prof.Jae-Ho Han’s paper accepted in IEEE/ASME Transactions on MechatronicsProf. Jae-Ho Han’s new research on `Real-Time Triple Field of View Interferometry for Scan-Free Monitoring of Multiple Objects` was accepted in IEEE/ASME Transactions on Mechatronics. Title: Real-Time Triple Field of View Interferometry for Scan-Free Monitoring of Multiple ObjectsAbstract:Synchronous scanning of multiple objects is essential to health monitoring of cells with high reliability. In general, monitoring multiple objects with f…2017-01-17 |