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 | 886 |
 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. 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 |
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Prof.Heung-II Suk’s paper accepted in Medical Image AnalysisProf. Heung-II Suk’s new research on `Deep Ensemble Learning of Sparse Regression Models for Brain Disease Diagnosis` was accepted in Medical Image Analysis. Title: Deep Ensemble Learning of Sparse Regression Models for Brain Disease DiagnosisAbstract: Recent studies on brain imaging analysis witnessed the core roles of machine learning techniques in computer-assisted intervention for brain disease diagnosis. Of various machine-l…2017-01-13 |
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Prof.Byoung-Kyong Min’s paper accepted in Scientific ReportsProf. Byoung-Kyong Min’s new research on `Decoding of top-down cognitive processing for SSVEP-controlled BMI` was accepted in Scientific Reports. Title: Decoding of top-down cognitive processing for SSVEP-controlled BMI Abstract:We present a fast and accurate non-invasive brain-machine interface (BMI) based on demodulating steady-state visual evoked potentials (SSVEPs) in electroencephalography (EEG). Our study reports an SSVEP-BMI that, f…2016-10-13 |
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Prof.Byoung-Kyong Min’s paper accepted in Hearing ResearchProf. Byoung-Kyong Min’s new research on `Top-down and Bottom-up Neurodynamic Evidence in Patients with Tinnitus` was accepted in Hearing Research. Title: Top-down and Bottom-up Neurodynamic Evidence in Patients with Tinnitus Abstract:Although a peripheral auditory (bottom-up) deficit is an essential prerequisite for the generation of tinnitus, central cognitive (top-down) impairment has also been shown to be an inherent neuropatholog…2016-10-07 |
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Prof. Christian Wallraven’s paper accepted in Human Brain MappingProf. Christian Wallraven’s new research on ` “Can touch this”: cross-modal shape categorization performance is associated with micro-structural characteristics of white matter association pathways` was accepted in Human Brain Mapping.Title: “Can touch this”: cross-modal shape categorization performance is associated with micro-structural characteristics of white matter association pathwaysAbstract: Previous studies on visuo-haptic shap…2016-09-26 |
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Prof. Christian Wallraven`s paper accepted in Psychonomic Bulletin & ReviewProf. Christian Wallraven’s new research on `Cannot Avert the Eyes: Reduced Attentional Blink toward Others’ Emotional Expressions in Empathic People` was accepted in Psychonomic Bulletin & Review.Title: Cannot Avert the Eyes: Reduced Attentional Blink toward Others’ Emotional Expressions in Empathic PeopleAbstract: Empathy is one of the core components of social interaction. Although current models of empathy emphasize the role of attention, few…2016-09-22 |
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Prof. Seong-Whan Lee`s paper accepted in IEEE Transactions on Neural Systems and…Prof. Seong-Whan Lee`s new research on `Commanding a Brain-Controlled Wheelchair using Steady-State Somatosensory Evoked Potentials` was accepted in IEEE Transactions on Neural Systems and Rehabilitation Engineering.Title: Commanding a Brain-Controlled Wheelchair using Steady-State Somatosensory Evoked Potentials Abstract: In this work, we propose a novel brain-controlled wheelchair, one of the major applications of brain-machine interf…2016-05-27 |
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Prof. Jae-Ho Han`s paper accepted in IEEE/OSA Journal of Lightwave TechnologyProf. Jae-Ho Han`s new research on `In vitro Monitoring of a Cultured Human Retinal Pigment Epithelium Using 1,375-nm Spectral Domain Optical Coherence Tomography` was accepted in IEEE/OSA Journal of Lightwave Technology.Title: In vitro Monitoring of a Cultured Human Retinal Pigment Epithelium Using 1,375-nm Spectral Domain Optical Coherence TomographyAbstract: Measurement of cell number is important in cell-based in vitro screenings for the…2016-05-27 |
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Prof. Heung-Il Suk`s paper accepted in NeuroImageProf. Heung-Il Suk`s new research on `State-Space Model with Deep Learning for Functional Dynamics Estimation in Resting-State fMRI` was accepted in NeuroImage.Title: State-Space Model with Deep Learning for Functional Dynamics Estimation in Resting-State fMRIAbstract: Studies on resting-state functional Magnetic Resonance Imaging (rs-fMRI) have shown that different brain regions still actively interact with each other while a subject is at rest, and …2016-01-05 |