Updated on 2024/04/17

写真a

 
MIYAGI Shigeyuki
 
Organization
Faculty of Advanced Engineering
Department
School of Engineering Department of Electronic Systems Engineering
Title
Associate Professor
External link

Education

  • Kyoto University   Graduate School, Division of Engineering

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    Course completed： Doctor's Course

    Country： Japan

  • The University of Tokushima   Faculty of Engineering

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    Country： Japan

Degree

  • 博士（工学） ( 1997.3   京都大学 )

Research Field

  • Computer Vision

  • Statistical Image Processing, Signal Processing, Computer Vision

Research Experience

  • The University of Shiga Prefecture   Associate Professor

    2008.4

  • The University of Shiga Prefecture   Associate Professor

    2007.4 - 2008.3

  • The University of Shiga Prefecture   Associate Professor (as old post name)

    2002.4 - 2007.3

  • 京都大学大学院情報学研究科   助手

    1998.4 - 2002.3

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    Country：Japan

  • 京都大学大学院工学研究科   助手

    1996.4 - 1998.3

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    Country：Japan

  • 京都大学工学部   助手

    1995.4 - 1996.3

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    Country：Japan

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Association Memberships

  • The Institute of Electrical and Electronics Engineers, Inc.

    2008.4

  • 日本色彩学会

    2008.4

  • システム制御情報学会

    2008.4

  • 電子情報通信学会

    2008.4

Research Areas

  • Informatics / Perceptual information processing

Available Technology

  • ICT技術を活用した人間行動の解析とその応用

  • ICT技術を活用した各種産業における課題の可視化と その応用

Papers

  • Logistics Route Planning in Agent-Based Simulation and Its Optimization Represented in Higher-Order Markov-Chain Networks Reviewed

    Ikai R., Miyagi S., Sakai O.

    Springer Proceedings in Complexity   38 - 50   2021.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Proceedings in Complexity  

    Route planning in logistics, in which multiple pickup and delivery positions exist in a road network, is a complicated task with many choices in a path selection and their influences on the following procedures. Solving this task by multi-agent simulations, we examine the route optimization process by monitoring motions in networks based on simple or higher-order Markov chains (MCs). Agent footprints in the networks, which spread over the entire network at the initial phase, converge on small number of edges as the transportation path gets shortened. When we increase the order of MCs in agent mobilities, the MC networks are enlarged and possess a large number of nodes and edges with structural regularity so that one node contains partial trace history, while the optimized route that frequently overlaps edge groups with high transition probabilities is equivalent to a smaller and more noticeable subgraph around a local optimal solution. In other words, this localization of the traces indicates a convergence level in optimization, which can be a measure for route planning in logistics.

    DOI： 10.1007/978-3-030-81854-8_4

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85113302052&origin=inward

  • In-vacuum active colour sensor and wireless communication across a vacuum-air interface Reviewed

    Sakai O., Kitagawa T., Sakurai K., Itami G., Miyagi S., Noborio K., Taguchi K.

    Scientific Reports   11 ( 1 )   2021.1

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Scientific Reports  

    © 2021, The Author(s). In situ sensing with wireless digital-data transfer is a potential processing scheme that works very closely to the location of an event monitored by a sensor and converts the sensor’s raw output into digitized and informative small-volume bits, as suggested by recent proposals for edge computing and the Internet of Things (IoT). Colour perception may be a target of in situ sensor data acquisition; however, in contrast to from other sensing devices, colour sensors that detect visible light signals are usually located away from light-emitting sources, collecting light transmitting through the space and attenuating it in some manner. For example, in a vacuum chamber whose gas pressure is much less than the ambient atmosphere in which the sensors usually work, there are many veiled light sources, such as discharge plasma, for various industrial purposes including nanoscale manufacturing. In this study, we designed an in-vacuum colour sensor that can work with analogue-to-digital conversion and transfer data by wireless communication; this sensor is active in a low-pressure plasma chamber, detecting light signals and transferring them to a personal computer located outside the vacuum chamber. In addition to detecting lights with controlled spectra from outside successfully, we achieved complete operation of our in-vacuum active sensor for plasma emissions generated at 100 Pa. Comparing the signals with data from simultaneous monitoring by a monochromator, we established that the recorded signals arose from the plasma, confirming successful direct detection of low-pressure plasma emissions without any filtering effects between the sensor and the target object.

    DOI： 10.1038/s41598-020-80501-z

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85099396381&origin=inward

  • Order Estimation of Markov-Chain Processes in Complex Mobility Network Embedded in Vehicle Traces Reviewed

    Yamamoto K., Miyagi S., Sakai O.

    Studies in Computational Intelligence   944   231 - 242   2020.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Studies in Computational Intelligence  

    © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG. Vehicle mobility in urban traffic systems is complex, partly because it reflects mobility of a human who drives a vehicle, and partly because it depends on many roles which the vehicle plays. Previous studies on human mobility revealed that it includes Lévy-flights-like motions and memoryless deterministic walks as well as random walks, but the mobility of vehicles may be more biased due to their functions. Focusing our research target on a sightseeing vehicle with sufficiently limited functions, we show a method to measure regularity of visitation patterns, quantified by order(s) of Markov chains in their mobility. Graphs of higher-order Markov chains, which are representatives of mobility in a network style, possess statistical properties; in our observation dataset, they include degree distributions similar to scale-free networks. The detection of mobility in real social experiments, which is also assumed on these graphs, yields the order of Markov chains inside it with its comparison with the results of agent-based simulations. Centrality indices of the mobility networks well coincide with prediction of these analytical and numerical results.

    DOI： 10.1007/978-3-030-65351-4_19

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85101814485&origin=inward

  • Statistics of Growing Chemical Network Originating from One Molecule Species and Activated by Low-Temperature Plasma Reviewed

    Mizui Y., Miyagi S., Sakai O.

    Studies in Computational Intelligence   944   398 - 409   2020.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Studies in Computational Intelligence  

    © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG. Chemistry in plasma is complicated because it has so many reactions in parallel and in series. A complex network is suitable for the visualization and the analysis of its complexity. A numerical calculation based on hundreds of rate equations is a typical tool for plasma chemistry, but such a computational process does not clarify the undergoing physical and chemical properties that stabilize many industrial plasma processes for a number of applications. In this study, we focus on low-temperature plasma in which high-energy electrons are activators for chemical reactions, and investigate the origin of the stability by examining the statistical properties of networks for silane (SiH4 ) plasma. There is only one seed species in the initial space, SiH4, which is surrounded by high-energy electrons. SiH4 is decomposed into several fragments composed of Si and/or H atoms with possible charges, and such radical and ion species are decomposed or synthesized into other species, leading to the formation of temporal reaction networks in chemistry. With the effects of rate constants that determine chemical reaction rates, we create temporal networks and observe preferential attachments that induce a new reaction in a transient state. The centrality indices for participant species and degree distributions reveal what is occurring in this complex system, and during the sequential process we observe an exponential-tail degree distribution, which is a significant source of reaction stability.

    DOI： 10.1007/978-3-030-65351-4_32

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85101815755&origin=inward

  • Classifying Dysphagic Swallowing Sounds with Support Vector Machines Reviewed International journal

    Shigeyuki Miyagi, Syo Sugiyama, Keiko Kozawa, Sueyoshi Moritani,Shin-ichi Sakamoto, Osamu Sakai

    Healthcare   8 ( 2 )   2020.4

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    Language：English   Publishing type：Research paper (scientific journal)   Participation form：Joint(The main charge)  

    DOI： 10.3390/healthcare8020103

  • 簡易型嚥下評価システムの構築に向けてー嚥下音と頸部深度画像を併用した嚥下評価手法の開発ー

    宮城茂幸，小澤恵子，森谷季吉，坂本眞一，酒井道

    アグリバイオ   4 ( 2 )   61 - 66   2020.2

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：北隆館   Participation form：Joint(The main charge)  

  • Mobilities in network topology and simulation reproducibility of sightseeing vehicle detected by low-power wide-area positioning system Reviewed

    Yamamoto K., Yoshida J., Miyagi S., Minami S., Minami D., Sakai O.

    Electronics (Switzerland)   9 ( 1 )   2020.1

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Electronics (Switzerland)  

    © 2020 by the authors. Licensee MDPI, Basel, Switzerland. Vehicle mobilities for passengers in a city’s downtown area or in the countryside are significant points to characterize their functions and outputs. We focus on commercial sightseeing vehicles in a Japanese city where many tourists enjoy sightseeing. Such mobilities and their visualizations make tourist activities smoother and richer. We design and install a low-power, wide-area positioning system on a rickshaw, which is a human-pulled, two-or three-wheeled cart, and monitor its mobility in Hikone City. All the spatial locations, which are recorded in a time sequence on a cloud server, are currently available as open data on the internet. We analyze such sequential data using graph topology, which reflects the information of corresponding geographical maps, and reproduce it in cyberspace using an agent-based model with similar probabilities to the accumulated rickshaw records from one spatial node to another. Although the numerical results of the agent traced in a simulated city are partially consistent with the rickshaw’s record, we identify some significant differences. We conclude that the rickshaw’s mobility observed at the actual sightseeing sites is partially in the random motion; some cases are strongly biased by memory routes. Such non-randomness in the rickshaw’s mobility indicates the existence of specific features in tourism sources that are identified for each sightseeing activity and affected by local sightseeing resources.

    DOI： 10.3390/electronics9010116

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85078313908&origin=inward

  • Detection of bending motion at waist of kitchen workers by using a single commercial accelerometer Reviewed International journal

    Ryosuke Tsuji, Katsumi Furuta, Osamu Sakai, Shigeyuki Miyagi

    Proceedings of 2019 IEEE 8th Global Conference on Consumer Electronics (GCCE)   1196 - 1197   2019.10

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    Language：English   Publishing type：Research paper (international conference proceedings)   Participation form：Joint(The vice charge)  

    Investigating the motion of kitchen workers is one of the important elements for reducing the time for serving food to customers in fast food restaurants. We show that a single 3-axis accelerometer attached to kitchen workers is useful for detecting their back bending motion at the waist and estimating time or time period by using only a simple technique. The introduced technique was applied to the practical data acquired from a real situation in a fast food restaurant. The precision of the detected back bending motion reached approximately 70%.

  • Detection of Swallowing Times Using a Commercial RGB-D Camera Reviewed International journal

    Jun Yoshida, Keiko Kozawa, Sueyoshi Moritani, Shin-ichi Sakamoto, Osamu Sakai, Shigeyuki Miyagi

    Proceeding of 2019 IEEE 8th Global Conference on Consumer Electronics   1178 - 1179   2019.10

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    Language：English   Publishing type：Research paper (international conference proceedings)   Participation form：Joint(The vice charge)  

    For assisting early detection and treatment for dysphagic patients, an assessment system for swallowing disorders is necessary. Detecting the swallowing time is one of the key components for developing such an assessment system. Hence,we propose a swallowing detection algorithm using a commercial depth camera. The proposed method considers movements in the front of the neck, before and during swallowing, to determine the swallowing time. We then experimentally demonstrate the performance of the algorithm. The results show that the proposed algorithm achieves a recall and precision of 0.958 and 0.813, respectively. Thus, this algorithm can assist in the early detection of dysphagia.

  • Network property and learning model of weblike equation system in a scientific category Reviewed International journal

    Tetsuya Kojima, Jun Ishida, Shigeyuki Miyagi, Osamu Sakai

    Abstract book of the 7th International Conference on Complex Networks and Their Applications   33   2018.12

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    Language：English   Publishing type：Research paper (international conference proceedings)   Participation form：Joint(The vice charge)  

  • 簡易型嚥下評価システムの構築に向けてー嚥下音と頸部深度画像を併用した嚥下評価手法の開発ー Reviewed

    宮城茂幸，小澤恵子，森谷季吉，坂本眞一，酒井道

    地域ケアリング   20 ( 11 )   73 - 77   2018.9

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Participation form：Joint(The main charge)  

  • Graphical Classification in Multi-Centrality-Index Diagrams for Complex Chemical Networks Reviewed International journal

    Yasutaka Mizui, Tetsuya Kojima, Shigeyuki Miyagi and Osamu Sakai

    Symmetry   9 ( 309 )   2017.12

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    Language：English   Publishing type：Research paper (scientific journal)   Participation form：Joint(The vice charge)  

  • Graphical classification in multi-centrality-index diagrams for complex chemical networks Reviewed

    Mizui Y., Kojima T., Miyagi S., Sakai O.

    Symmetry   9 ( 12 )   2017.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Symmetry  

    © 2017 by the authors. Various sizes of chemical reaction network exist, from small graphs of linear networks with several inorganic species to huge complex networks composed of protein reactions or metabolic systems. Huge complex networks of organic substrates have been well studied using statistical properties such as degree distributions. However, when the size is relatively small, statistical data suffers from significant errors coming from irregular effects by species, and a macroscopic analysis is frequently unsuccessful. In this study, we demonstrate a graphical classification method for chemical networks that contain tens of species. Betweenness and closeness centrality indices of a graph can create a two-dimensional diagram with information of node distribution for a complex chemical network. This diagram successfully reveals systematic sharing of roles among species as a semi-statistical property in chemical reactions, and distinguishes it from the ones in random networks, which has no functional node distributions. This analytical approach is applicable for rapid and approximate understanding of complex chemical network systems such as plasma-enhanced reactions as well as visualization and classification of other graphs.

    DOI： 10.3390/sym9120309

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040062897&origin=inward

  • Complex reaction network in silane plasma chemistry Reviewed

    Mizui Y., Nobuto K., Miyagi S., Sakai O.

    Springer Proceedings in Complexity   Part F2   135 - 140   2017.1

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Proceedings in Complexity  

    © Springer International Publishing AG 2017. Chemical reactions become significantly complex when plasma is introduced in a reaction space. We study silane plasma chemistry, and centrality indices derived from the reaction network indicate several points of information about species in reactions as well as macroscopic topology in the entire network graph. Stable species, unstable species and electrons play different roles as triggers or products of reactions, and this analytical method provides several points that cannot be revealed by rate-equation calculations, which have been popular in chemical analysis.

    DOI： 10.1007/978-3-319-54241-6_11

    Scopus

    Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040090442&origin=inward

  • Improved Solid Voxelization Method for a Practical Point Cloud Obtained Using Consumer RGB-D Cameras Reviewed International journal

    Shigeyuki Miyagi, Keisuke Saitoh and Osamu Sakai

    Advances in Computer Science and Engineering   16 ( 3-4 )   87 - 101   2016.11

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    Language：English   Publishing type：Research paper (scientific journal)   Participation form：Joint(The main charge)  

    In the present paper, we propose an improved solid voxelization method based on Garcia and Ottersten’s method, which is known as CPU-based solid voxelization. When their method is applied to point cloud data sets obtained from consumer-level 3D cameras, such as Kinect and RealSense, parts of the surface completion may fail. This was found to be caused by certain adjacent voxel pairs generated in their surface voxelization step. In order to avoid such flawed voxel pairs, we propose an improved algorithm that uses an automatic rejection mechanism of flawed pairs and multiple shell completion. We apply the proposed algorithm to practical point cloud data sets and demonstrate the effectiveness of the algorithm in comparison with the original algorithm proposed by Garcia and Ottersten.

    DOI： 10.17654/CS016340087

  • Two-dimensional (2D) Laguerre lattice filter in modeling image signals Reviewed

    Shigeyuki Miyagi

    Far East Journal of Electronics and Communications   7 ( 1 )   25 - 40   2011.9

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Pushpa Publishing House  

  • Two dimensional Laguerre model and spectral estimation of image signals Reviewed

    Shigeyuki Miyagi

    Far East Journal of Electronics and Communications   6 ( 1 )   1 - 11   2011.3

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Pushpa Publishing House  

  • Extension of Blind Source Separation Method Based on Image Signal Ratio Reviewed

    Shigeyuki Miyagi, Yoshiharu Taniguchi

    Far East Journal of Applied Mathematics   44 ( 2 )   149 - 157   2010.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Pushpa Publishing House   Participation form：Joint(The main charge)  

  • 信号比を用いたブラインド画像分離法の拡張

    但吉正英，宮城茂幸，谷口義治

    滋賀県立大学国際教育センター研究紀要   － ( 12 )   147 - 158   2007.4

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    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)   Publisher：滋賀県立大学国際教育センター   Participation form：Joint(The vice charge)  

  • 確率パターンマッチングによる顔検出器の性能評価

    宮城茂幸, 富永昌治

    滋賀県立大学国際教育センター研究紀要   － ( 11 )   161 - 168   2006.4

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    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)   Publisher：滋賀県立大学国際教育センター   Participation form：Joint(The main charge)  

  • 顔検出のための肌色情報と確率テーブルマッチングのウェーブレット統合

    宮城茂幸, 富永昌治

    滋賀県立大学国際教育センター研究紀要   － ( 10 )   177 - 186   2005.4

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    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)   Publisher：滋賀県立大学国際教育センター   Participation form：Joint(The main charge)  

  • Mean-square performance of the filtered-reference/filtered-error LMS algorithm Reviewed

    Shigeyuki Miyagi and Hideaki Sakai

    IEEE Trans. on Circuits and Systems I:Regular Papers   52 ( 11 )   2454 - 2463   2005.4

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    Language：English   Publishing type：Research paper (scientific journal)   Participation form：Joint(The main charge)  

  • Face detection in colour images by wavelet transform Reviewed

    Shigeyuki Miyagi and Shoji Tominaga

    The proceedings of AIC Colour 05   － ( ー )   1039 - 1042   2005.4

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    Language：English   Publishing type：Research paper (scientific journal)   Participation form：Joint(The main charge)  

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Books etc

  • 新編色彩科学ハンドブック第3版

    大田登（編）他（ Role： Contributor）

    東京大学出版会  2011.4  （ ISBN:978-4-13-061131-2 ）

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    Total pages：5   Language：Japanese   Book type：Scholarly book

MISC

  • 深度情報を用いた平板状物体表面の破損率推定および傷形状の検討 Invited

    井口 雅士, 酒井 道, 宮城 茂幸

    画像ラボ   32 ( 3 )   6 - 11   2021.3

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Participation form：Joint(The vice charge)  

Research Projects

  • センサー情報を用いた行動解析

    2011.4

    その他の研究制度  加速度センサー, スマートフォン, 人間行動解析

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    現在普及しているスマートフォンには，加速度センサーや角速度センサー，地磁気センサーといった様々なセンサーが搭載されています．これらのセンサー情報を収集・統合することによりスマートフォンを所持している人の行動や置かれている状況が判定できると考えられます．これを応用して異常事態の検出や日常生活での健康管理に役立てていけるシステムの開発を目指しています．

  • 距離画像を用いた行動分析

    2011.4

    その他の研究制度  TOFカメラ, 距離画像, デプス画像, 行動解析

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    撮像デバイスの発達により従来のRGBカメラだけでなく，カメラから撮影対象までの距離が測定できるカメラが容易に利用できるようになりました．測定された距離から対象物体の形状が把握でき，その形状がどのように変化するかも捉えることができます．これを利用することにより，画像による人間行動の分析が容易になります．現在歩行者の検出と注視方向の推定を行うアルゴリズムを開発しています．

  • Kinectによる物体の体積推定

    2011.4

    その他の研究制度 

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    Kinectは距離画像を出力できる安価なデバイスとして普及しています．これを用いて物体の体積をできるだけ正確に測定できる手法を検討しています．一つの応用としては浮腫部分の体積測定が考えられます．従来看護師により巻尺で測定した結果から体積換算を行っていましたが，Kinect一つで自分で浮腫部分の体積測定が可能になり，在宅での治療や手当の効果を継続的に確認していくことができます．

  • 信号比によるブラインド信号分離

    2006.4 - 2010.7

    その他の研究制度  ブラインド信号分離，独立性分分析，ICA

  • Developing algorithms for face detection in color images

    2004.4 - 2008.3

    The Other Research Programs  face detection, probabilistic pattern matching, wavelet

Presentations

  • ミーティング参加者の行動特徴と主観的な満足度評価との相関分析

    鵜子匠，酒井道，宮城茂幸

    令和5年電気関係学会関西連合大会  2023.11  電気学会、電子情報通信学会、映像情報メディア学会各関西支部

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    Event date： 2023.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：関西学院大学　西宮上ケ原キャンパス   Country：Japan  

  • Power‑Law Distribution of the Visibility Graphs from Acceleration Time Series Generated by Calf Activities International conference

    Shuichiro Ito, Osamu Sakai, Shigeyuki Miyagi

    The 4th International Conference on Activity and Behavior Computing  2022.10 

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    Language：English   Presentation type：Oral presentation (general)  

    Observing the calf’s behavior and automatically recognizing its activity are
    essential tasks for breeding healthy cows or cattle. An effective method for calf
    activity recognition is to classify the time-series data acquired by wearable
    accelerometers using machine learning algorithms. However, to train such a
    machine learning system, a large number of labeled data sets and learning
    times are required. In this study, we propose a method for analyzing the
    statistical properties of a time series obtained from the accelerometer on calves
    by applying a visibility graph. In our proposed method, labeled data sets
    and learning procedures are not required. The time series is mapped onto the
    corresponding complex networks using the visibility algorithm, and the degree
    distributions are examined. In the experiments, we confirmed that the degree
    distributions of the subject calves followed the power law with a power-law
    index of 3.5 for almost all the distributions. In addition, we compared the
    variation in the power-law indices every 24 h in each calf, along with its
    physical condition records. Consequently, we found that the power-law index
    slightly decreased when a subject calf developed a fever. This suggests that
    a deviation of the degree distribution observed may be useful in determining
    the health conditions of calves.

  • 遠赤外線カメラを用いた円筒型金属表面温度推定のための基礎検討

    加藤 翔, 宮城茂幸, 酒井 道

    2022年電子情報通信学会総合大会  2022.3  電子情報通信学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン開催  

  • 簡易嚥下機能評価システム実現の可能性を探る ― 嚥下音と頸部深度画像処理の有効性検討 Invited

    宮城茂幸, 森谷季吉, 坂本 眞一, 酒井 道

    LIFE 2020-2021  2021.9  ライフサポート学会

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    Language：Japanese   Presentation type：Symposium, workshop panel (nominated)  

    Venue：オンライン開催  

  • 音響特徴量と深層学習に基づく小型DC モータの故障状態分類に関する基礎検討

    荒堀 風太, 坂本 眞一, 酒井 道, 宮城 茂幸

    日本音響学会2021年秋季研究発表会  2021.9  日本音響学会

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    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン開催  

  • プラズマメタマテリアル層によるマイクロ波の吸収・散乱・迂回制御

    井波 柱偉, Bambina Alexandre, 宮城 茂幸, 酒井道

    第68回応用物理学会春季学術講演会  2021.5 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 容量結合型プラズマ装置内色彩センサによるその場測定と無線通信

    櫻井 慶士, 北川 貴之, 宮城 茂幸, 登尾 一幸, 田口 貢士, 酒井 道

    第68回応用物理学会春季学術講演会  2021.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 被験者の頭部運動を考慮した頸部シルエットからの嚥下時刻推定

    浦西雄大, 酒井　道, 宮城茂幸

    第19回情報科学技術フォーラム  2020.9  情報処理学会

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    Language：English   Presentation type：Oral presentation (general)  

  • 深度情報を用いた平板状物体表面の破損率および傷形状の推定

    井口 雅士, 宮城 茂幸, 酒井 道:

    第222回コンピュータビジョンとイメージメディア研究発表会  2020.5  情報処理学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • DCモーターの故障予測に向けた基礎検討

    坂本 眞一, 山家 弘斗, 宮城 茂幸

    第67回応用物理学会春季学術講演会  2020.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • Estimation of swallowing time by counting pixels in the neck silhouette generated by depth images

    2019.9 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 加速度センサを用いた厨房作業者の腰曲げ運動の検出

    辻涼介, 古田勝己, 宮城茂幸

    電子情報通信学会総合大会  2019.3  電子情報通信学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 深度画像の隣接フレーム間差分による嚥下時刻推定

    吉田淳, 小澤恵子, 森谷季吉, 坂本眞一, 酒井道, 宮城茂幸

    ViEW2018 ビジョン技術の実利用ワークショップ  2018.12  精密工学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • RGB-D カメラにより取得された マーカ座標間の相対位置変化を用いた健常者の嚥下検出

    吉田淳, 朝本崇康, 小澤恵子, 森谷季吉, 坂本眞一, 酒井道, 宮城茂幸

    情報処理学会研究報告  2018.5  情報処理学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 投票により決定された局所深度勾配情報を用いた喉頭挙上運動の追跡

    朝本崇康, 吉田　淳, 小澤惠子, 森谷季吉, 坂本眞一, 酒井道, 宮城茂幸

    2018年電子情報通信学会総合大会  2018.3  電子情報通信学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 在宅における嚥下障害早期発見に向けて –頸部聴診音による評価指標の確立の検討（中間報告）--

    藤戸遥, 土田侑奈, 小澤恵子, 宮城茂幸, 森谷季吉

    第2回滋賀県多職種連携学会研究大会  2018.2  滋賀県多職種連携学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • 在宅における嚥下障害早期発見に向けて –頸部聴診音による評価指標の確立の検討--

    小澤恵子, 宮城茂幸, 森谷季吉

    第23回日本摂食嚥下リハビリテーション学会学術大会  2017.9  日本摂食嚥下リハビリテーション学会

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • Volume Mesurement by Voxelization for Non-uniformly Distributed Point Clouds Obtained from RGB-D Cameras International conference

    2016.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • An Improvement of The Depth Camera Calibration Method by Using A ThreeDimensional Calibration Board International conference

    2016.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • A Method of Volume Measurement from Point Data Obtained by RGBD Cameras

    2015.9 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • A Method of Estimating the Bounded Ball Position in Tennis Videos

    2015.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • Kinectから取得される座標データの補正と物体の体積推定の試み

    齊藤 圭佑, 宮城 茂幸

    CVIM2014年5月研究会  2014.5  情報処理学会コンピュータビジョンとイメージメディア研究会

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    Language：Japanese   Presentation type：Poster presentation  

    Venue：近畿大学 東大阪キャンパス  

    Kinect からは RGB 画像の各画素に対応した座標データ (X, Y , Z) を取得することができるが,こ
    れらのデータは必ずしも正確でない.そこで, Kinect に対し平行に置かれた平板上の既知のドットパター
    ンを用い座標 (X, Y , Z) の補正を行った. Z 座標については,平行平板の設置位置を変えることにより,
    (X, Y ) 座標については,ドット間の距離を調べることにより誤差の評価を行った.その結果, Z 方向につ
    いては測定距離に応じて指数関数的に測定誤差が,また, (X, Y ) 方向については X-Y 平面内で一定の割
    合で誤差が発生することがわかった.これらの誤差を打ち消すように補正を行った. 1 つの応用例として,
    補正後の座標データを用い,単純なカービング法を用いて物体の 3 次元形状を再構成し,その体積推定を
    行い,推定精度を評価した.

  • Pedestrian Detection and Simultaneously Estimation of its Direction in Top-View Depth Images by Using Statistical Shape Modelings

    Kazumasa Takemura, Shigeyuki Miyagi

    2014.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • A Study on Activity Classification by Using the Acceleration Eliminating the Effects of Gravity

    Masatoshi Ibuki, Shigeyuki Miyagi

    2014.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • HASC Challenge 1 報告 ーフラクタル特徴量による識別率の向 上ー International conference

    伊吹真俊,宮城茂幸

    HASC Challenge 2013 シンポジウム  2013.10  Human Activity Sensing Consortium

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    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：大阪イノベーションハブ グランフロント大阪 タワーC7階  

  • Pedestrian Detection in Top-View Depth Images by Using Statistical Shape Modelings International conference

    Kazumasa Takemura, Shigeyuki Miyagi

    2013.9  Information Processing Society of Japan

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    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：Tottori University  

  • A Study on Effective Features for Activity Classification with 3-axis Accelerometers International conference

    Masatoshi Ibuki, Shigeyuki Miyagi

    2013.9 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • Pedestrian Detection by Using the Sparse Features of Top-View Depth Images

    2013.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • A Fundamental Study on the Simulation Technique of Acoustic Wave Propagation Considering with Heat Exchanging

    2013.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

  • はじめてのHASC Challenge 1 -スキップの識別に有効な特徴量はあるのか？

    宮城　茂幸

    HASC Challenge 2012シンポジウム  2012.12  Human Activity Sensing Consortium

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    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京工科大学  

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Teaching Experience

  • プログラミング基礎

    2011.4 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 電子情報特論

    2011.4 - 2012.3 Institution：滋賀県立大学

  • 電子システム工学実験Ⅳ

    2010.4 Institution：滋賀県立大学

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    Level：Undergraduate (specialized) 

  • 情報リテラシー（情報倫理を含む）（電子）

    2010.4 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 情報科学概論

    2009.4 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 人間探求学

    2009.4 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 電子システム工学実験Ⅱ

    2009.4 Institution：滋賀県立大学

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    Level：Undergraduate (specialized) 

  • ディジタル信号処理

    2009.4 Institution：滋賀県立大学

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    Level：Undergraduate (specialized) 

  • 情報処理演習Ⅱ

    2009.4 - 2010.3 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 情報処理演習Ⅱ

    2009.4 - 2010.3 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 電子情報特論

    2009.4 - 2010.3 Institution：滋賀県立大学

  • 情報処理演習Ⅰ

    2008.4 - 2010.3 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 情報処理演習Ⅱ

    2008.4 - 2009.3 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 情報処理演習Ⅱ

    2008.4 - 2009.3 Institution：滋賀県立大学

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    Level：Undergraduate (liberal arts) 

  • 情報処理

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Social Contribution

  • 滋賀県企業庁財務会計システム構築等に係る提案評価検討会オブザーバ

    Role(s)： Advisor

    滋賀県企業庁  2024.4

  • 「対人支援管理システム構築・運用保守業務」の総合評価一般競争入札にかかる助言

    Role(s)： Advisor

    滋賀県健康医療福祉部健康福祉政策課  2024.2 - 2024.3

  • 「アグリビジネス創出フェア」への展示

    Role(s)： Informant

    農林水産省  アグリビジネス創出フェア2022  2022.10

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    Audience： General,　Company

    Type：Science festival

  • 採点支援システム調達仕様書への助言

    Role(s)： Advisor

    滋賀県教育委員会  2022.7

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    Audience： Governmental agency

  • 「メディカル　ジャパン　2022大阪」関西広域連合バーチャルブース研究成果企業化促進セミナー

    Role(s)： Lecturer

    メディカル　ジャパン　2022大阪  2022.2 - 2022.3

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    Audience： Company

    Type：Seminar, workshop

  • 「滋賀県モータボート競走事業公営企業会計システム構築・運用保守業務委託」にかかる対面評価

    Role(s)： Advisor

    滋賀県総務部事業課  2016.4

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    Audience： Governmental agency

  • 「滋賀県税務総合システム再構築業務」にかかる総合評価一般競争入札に関する学識経験者の助言

    2014.1

  • 「滋賀県電子申請システム提供業務」に係る総合評価一般競争入札に関する学識経験者の助言

    2013.8

  • しが新産業創造ネットワーク　座談会

    2013.7

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    講演「センサー搭載機器の活用とその応用事例」

    個別相談会

  • 「地域情報提供システム構築・運用保守業務」に係る総合評価一般競争入札に関する学識経験者の助言

    2013.7

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