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| 1 | Rapid Acquisition of PN Signals for DS/SS Systems Using a Phase Estimator 显示文摘 | Yong-Hwan Lee | 2001 | IEEE Journal on Selected Areas in Communication2001，19，6： | 1 |
| 2 | Rapid acquisition of PN signals for DS/SS systems using a phase estimator显示文摘 | Yong-Hwan Lee | 2001 | IEEE Journal on Selected Areas in Communications2001，19，6： | 1 |
| 3 | Strategy for Creating AR Applications in Static and Dynamic Environments Using SLAM-and Marker Detector-Based Tracking显示文摘Recently,simultaneous localization and mapping(SLAM)has received considerable attention in augmented reality(AR)libraries and applications.Although the assumption of scene rigidity is common in most visual SLAMs,this assumption limits the possibilities of AR applications in various real-world environments.In this paper,we propose a new tracking system that integrates SLAMwith amarker detection module for real-time AR applications in static and dynamic environments.Because the proposed system assumes that the marker is movable,SLAM performs tracking andmappingof the static scene except for themarker,andthemarker detector estimates the 3-dimensional pose of the marker attached to the dynamic object.We can place SLAM maps,cameras,and dynamic objects(markers)on the same coordinate system,and we can also accurately augment AR resources in real-time on both the static scene and dynamic objects simultaneously.Additionally,having a static map of the scene in advance has the advantage of being able to performtracking of static and dynamic environments with mapping disabled.In this paper,we evaluate whether the proposed tracking systemis suitable for AR applications and describe a strategy for creating AR applications in static and dynamic environments with a demonstration. | Chanho Park Hyunwoo Cho Sangheon Park Sung-Uk Jung Suwon Lee | 2022 | Computer Modeling in Engineering & Sciences2022，，4： | 0 |
| 4 | Easy to Calibrate:Marker-Less Calibration of Multiview Azure Kinect显示文摘Reconstructing a three-dimensional(3D)environment is an indispensable technique to make augmented reality and augmented virtuality feasible.A Kinect device is an efficient tool for reconstructing 3D environments,and using multiple Kinect devices enables the enhancement of reconstruction density and expansion of virtual spaces.To employ multiple devices simultaneously,Kinect devices need to be calibrated with respect to each other.There are several schemes available that calibrate 3D images generated frommultiple Kinect devices,including themarker detection method.In this study,we introduce a markerless calibration technique for Azure Kinect devices that avoids the drawbacks of marker detection,which directly affects calibration accuracy;it offers superior userfriendliness,efficiency,and accuracy.Further,we applied a joint tracking algorithm to approximate the calibration.Traditional methods require the information of multiple joints for calibration;however,Azure Kinect,the latest version of Kinect,requires the information of only one joint.The obtained result was further refined using the iterative closest point algorithm.We conducted several experimental tests that confirmed the enhanced efficiency and accuracy of the proposed method for multiple Kinect devices when compared to the conventional markerbased calibration. | Sunyoung Bu Suwon Lee | 2023 | Computer Modeling in Engineering & Sciences2023，，9： | 0 |
| 5 | Weizmannia coagulans:an ideal probiotic for gut health显示文摘Weizmannia coagulans(formerly Bacillus coagulans)is a spore-forming and lactic acid-producing bacterium.It has recently attracted much attention from researchers and food manufacturers due to its probiotic functions and stability in processing and storage.W.coagulans is capable of improving gut health through the regulation of gut microbiota,modulation of immunity,and improving digestibility and metabolism.Spores,germinated cells and metabolites of W.coagulans modulate the gut micro-environment and further affect other organs.W.coagulans is an environment-friendly probiotic since it can contribute to the host by reconstructing the balance of gut microbiota and only temporarily resides in the intestine after administration.W.coagulans has been generally recognized as safe(GRAS)by the US Food and Drug Administration(FDA),thus it is an ideal probiotic for improving gut health.The merit of its stability in processing and storage provides W.coagulans spores many possibilities for its use in various types of functional foods.This review presents an overview of the characteristics of W.coagulans that make it an ideal probiotic candidate and highlights the proposed health benefits with scientific evidence conferred by the administration of W.coagulans. | Shiqi Zhang Pinglan Li Suwon Lee Yu Wang Chunming Tan Nan Shang | 2024 | Food Science and Human Wellness2024，13，1： | 0 |
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