Nobuyuki UMEZUAssociate Professor
■Researcher basic information
Organization
- College of Engineering Department of Mechanical Systems Engineering
- Graduate School of Science and Engineering（Master's Program） Major in Computer and Information Sciences
- Graduate School of Science and Engineerin（Doctoral Program） Major in Society's Infrastructure Systems Science
- School of Collaborative Regional Innovation
- Faculty of Applied Science and Engineering Domain of Mechanical Systems Engineering
Research Areas
- Informatics, Perceptual information processing, Visualization, New Media Art
- Informatics, Intelligent informatics, Music Information Processing
- Informatics, Learning support systems, XR technologies at Museums
- Informatics, Intelligent informatics, Image Database
- Informatics, Human interfaces and interactions, Tangible, Touch-less, Floor Projection, LiDAR
- Informatics, Information theory, Computer Graphics
Educational Background
Member History
External link
■Research activity information
Award
Paper
- Fostering Interest and Enthusiasm in Literary Appreciation Through Character Mosaics
Yuming Bai; Nobuyuki Umezu, Last
International Journal of Information and Education Technology, Aug. 2025, [Reviewed] - Location information measurements using multiple devices toward digital transformation of Open Sky Museum
Saito Y.; Uemura S.; Okuzumi J.; Suzuki N.; Umezu N., Last
IEEE Int. Conf. on Artificial Intelligence and Virtual Reality (AIxVR) 2025, Jan. 2025, [Reviewed] - Immersive Dome Projection: Skywalking Through Iconic Global Destinations
Nobuyuki Umezu; Shun Horie, Lead
IEEE Int. Conf. on Artificial Intelligence and Virtual Reality (AIxVR) 2025, Jan. 2025, [Reviewed] - Augmented Karuta: Interactive Playing Cards on the Floor for Learning Local Culture
Nobuyuki Umezu; Hideki Bando, Lead
IEEE Int. Conf. on Artificial Intelligence and Virtual Reality (AIxVR) 2025, Jan. 2025, [Reviewed] - Passing Practice Support for Soccer Players Using First-Person Videos
Nobuyuki Umezu; Yuya Imada, Lead, IEEE
Int. Conf. on Soft Computing and Intelligent Systems and Int. Symp. on Advanced Intelligent Systems (SCIS & ISIS), 09 Nov. 2024, [Reviewed] - Pseudo-Holographic Display of Plant Models based on Pepper's Ghost Illusion
Nobuyuki Umezu; Satoshi Iijima, Lead, IEEE
Int. Conf. on Soft Computing and Intelligent Systems and Int. Symp. on Advanced Intelligent Systems (SCIS & ISIS), 09 Nov. 2024, [Reviewed] - Interactive Floor Projection in a Museum for Learning Small Creatures
Nobuyuki Umezu; Koki Nakagawa, Lead, IEEE
2024 IEEE Global Conf. on Consumer Electronics (GCCE), 29 Oct. 2024, [Reviewed] - Interactive Museum Kiosk for Visualizng Visitor Activities
Nobuyuki Umezu; Saku Nishida, Lead, IEEE
2024 IEEE Global Conf. on Consumer Electronics (GCCE), 29 Oct. 2024, [Reviewed] - Lossy Compression of Z-Map Based Shape Models Using Daubechies Wavelet Transform and Quickselect
Nobuyuki Umezu; Masatomo Inui, Lead, We propose an algorithm for lossy compression of computer-aided design models in Z-map representation. Our method employs Daubechies wavelet functions, which are smoother than those of the Haar wavelet used in a previous work for the lossy compression of shape models. A significant reduction in the amount of data of the compressed shape model was achieved using the proposed lossy in which the least significant coefficients of the wavelet synopsis were deleted. The nonlinear filtering of coefficients was based on the quickselect algorithm, which was seven to ten times faster than a normal quicksort algorithm and allowed us to accelerate the entire process. We conducted a series of experiments using shape models with 512 × 512–8192 × 8192 resolutions to evaluate our technique using various wavelet functions. The proposed method performed the process in 50–90 ms for the models at 1024 × 1024 resolution and reduced the output binary size by 75%–90% compared with those compressed using a previous method. Some Daubechies wavelets, such as D4 and D6, were found superior in lossy compression using nonlinear filtering based on the order of magnitude of wavelet coefficients., Fuji Technology Press Ltd.
International Journal of Automation Technology, 05 Sep. 2024, [Reviewed] - Determination of Workpiece Postures for Three-Axis Machining Using Milling Simulation Results
Masatomo Inui; Sunao Kawai; Nobuyuki Umezu, Last, U-turn Press LLC
Computer-Aided Design and Applications, 05 Jun. 2024, [Reviewed] - Interactive Projection on Objects: Book and Castle Ruin Model Cases in a Museum
Nobuyuki Umezu; Yuto Mori; Keita Yamura, Lead
Proc. of IEEE AIxVR 2024, Jan. 2024, [Reviewed] - Development of Pseudo-3D Representation for Two-Dimensional Artworks Based on Head Tracking and Depth Information
Yuming Bai; Nobuyuki Umezu, Last
Proc. of ACM ADIP 2023, Dec. 2023, [Reviewed] - Thickness and Clearance Analysis of 3D Object Using Maximum Inscribed Cubes
Masatomo Inui; Ryo Ohno; Nobuyuki Umezu, Last, U-turn Press LLC
Computer-Aided Design and Applications, 13 Nov. 2023, [Reviewed] - Visitor Counting in a Museum With a 2D LiDAR Sensor
Nobuyuki Umezu; Shohei Koizumi, Lead
Proc. of IEEE GCCE 2023, Oct. 2023, [Reviewed] - Similarity-Based Grading Assistance for Assignments in Programming Lecture
Nobuyuki Umezu; Motoki Iwai; HIroto Ito, Lead
Proc. of IEEE GCCE 2023, Oct. 2023, [Reviewed] - Performance in Programming Class and Basic Math Skills
Nobuyuki Umezu; Motoki Iwai; HIroto Ito, Lead
Proc. of IEEE GCCE 2023, Oct. 2023, [Reviewed] - Potential of Low-Cost Light Detection and Ranging (LiDAR) Sensors: Case Studies for Enhancing Visitor Experience at a Science Museum
Nobuyuki Umezu; Shohei Koizumi; Kohki Nakagawa; Saku Nishida, Lead
Electronics, Jul. 2023, [Reviewed] - Graphical Assistance for Determining Cutter Axis Directions in 3+2-Axis Machining
Masatomo Inui; Shutaro Taguchi and Nobuyuki Umezu
CAD and Applications, Jan. 2023, [Reviewed] - Tangible User Interface to Learn about Voronoi Diagrams
Nobuyuki Umezu; Satoshi Iijima, Lead
Proc. of IEEE AIVR 2022, Dec. 2022, [Reviewed] - Visualizing Difference between Bodily Movements of Athletes and Users Learning to Play Baseball
Nobuyuki Umezu; Souta Akiyama, Lead
Proc. of IEEE AIVR 2022, Dec. 2022, [Reviewed] - Various Daubechies Wavelets for Compressing Z-map Models
Nobuyuki Umezu; Masatomo Inui, Lead
Proc. of ICPE 2022, Nov. 2022, [Reviewed] - Vectorization of Contours of Hand Written Letters for Character Mosaic Generation
Bai Yuming; Nobuyuki Umezu, Last
Proc. of ICPE 2022, Nov. 2022, [Reviewed] - Geometric Simulation of 5-axis Milling without Using Cutter Swept Volume
Shogo Iuchi; Masatomo Inui; Nobuyuki Umezu, Last
Proc. of ICPE 2022, Nov. 2022, [Reviewed] - Floor Projection with QR code-based Interactions and Visitor Drawings
Nobuyuki Umezu; Bai Yuming, Lead
Proc. of IEEE GCCE 2022, Oct. 2022, [Reviewed] - Formulation of Ever Zooming-up Photomosaics
Bai Yuming; Nobuyuki Umezu, Last
Proc. of IEEE GCCE 2022, Oct. 2022, [Reviewed] - Support for Hand Writing Practice with emphasized Visual Instructions
Natsumi Kako; Nobuyuki Umezu, Last
Proc. of IEEE GCCE 2022, Oct. 2022, [Reviewed] - Improved Method for Extracting Difficult-to-Machine Shapes Using Multiple Milling Simulation Results
Qi Chen; Masatomo Inui; Nobuyuki Umezu, Last
ASME IDETC/CIE 2022, Aug. 2022, [Reviewed] - Visualization of Thickness Distribution in Solid Objects
Masatomo Inui; Nao Oki; Nobuyuki Umezu
Proc. of ISFA 2022, Jul. 2022, [Reviewed] - Similarity-based Form Visualization for Supporting Sports Instructions
Souta Akiyama; Nobuyuki Umezu
Proc. of IEEE LifeTech2022, Mar. 2022, [Reviewed] - Chord-based Visualization of Temporal structure of Symphony
Kentarou Ishikawa; Nobuyuki Umezu
Proc. of IEEE LifeTech2022, Mar. 2022, [Reviewed] - Presenting Text Layout and Color Patterns Suitable for Book Covers
Naoki Kametani; Nobuyuki Umezu
Proc. of IEEE LifeTech2022, Mar. 2022, [Reviewed] - Comparison of Two Parallel Offsetting Algorithms Free from Conflicts Between Threads
Masatomo Inui; Daiki Ishii; and Nobuyuki Umezu
International Journal of Automation Technology (IJAT), Nov. 2021, [Reviewed] - Fast Cutter Accessibility Analysis Using Ray Tracing Cores of GPU
Masatomo Inui; Kohei Kaba; and Nobuyuki Umezu
International Journal of Automation Technology (IJAT), Nov. 2021, [Reviewed] - Parallel Contour-Type Cutter Path Computation Using GPU
Issei Watanabe; Masatomo INUI; Nobuyuki UMEZU
Proc. of LEM21 (International Conference on Leading Edge Manufacturing in 21st Century), Nov. 2021, [Reviewed] - Learning Environment based on an Interactive Projection Table for Children
Midori Kuwahara; Nobuyuki Umezu, Corresponding
Proc. of IEEE AIVR 2021, Nov. 2021, [Reviewed] - Character Mosaics: A New Form of Text-based Artistic Representation
Bai Yuming; Nobuyuki Umezu, Corresponding
Proc. of IEEE AIVR 2021, Nov. 2021, [Reviewed] - FAST CUTTER LOCATION SURFACE COMPUTATION USING RAY TRACING CORES
Daiki Ishii; Masatomo Inui; Nobuyuki Umezu
ASME IDETC/CIE 2021, Aug. 2021, [Reviewed] - Fast Computation of Volumetric Thickness of 3D Objects Using GPU
Masatomo Inui; Sinnosuke Naganuma; Nao Oki; Nobuyuki Umezu
IEEE Robotics and Automation Letters, 09 Jul. 2021, [Reviewed] - Recipe Recommendation and Cooking Instruction based on Food Material Recognition,
Saki Asahina; Nobuyuki Umezu, Last
Proc. of QCAV 2021, May 2021, [Reviewed] - Supporting Sports Instruction with Comparative Display of Forms
Sota Akiyama; Nobuyuki Umezu, Last
Proc. of QCAV 2021, May 2021, [Reviewed] - Webcam-based Categorization of Task Engagement of PC Users at Work
Tadashi Ohara; Nobuyuki Umezu, Last
Proc. of QCAV 2021, May 2021, [Reviewed] - Fast Dexelization of Polyhedral Models Using Ray-Tracing Cores of GPU
Masatomo Inui; Kohei Kaba; and Nobuyuki Umezu, {CAD} Solutions, {LLC}
CAD and Applications, Jan. 2021, [Reviewed] - Parallel offset computation free from conflicts between threads
Daiki Ishi; Masatomo Inui; Nobuyuki Umezu
Proc. of ICPE 2020, Nov. 2020, [Reviewed] - Thickness evaluation of solid model in triple-dexel representation
Yu Huang; Masatomo Inui; Nobuyuki Umezu
Proc. of ICPE 2020, Nov. 2020, [Reviewed] - Accessibility Map for Assisting Cutter Posture Determination in Five-Axis Mold Machining
Masatomo Inui; Kouhei Nishimiya; Nobuyuki Umezu
Proc. of IEEE CASE 2020, Aug. 2020, [Reviewed] - Fast Dexelization of Polyhedral Models Using Ray-Tracing Cores of GPU
Masatomo Inui; Kohei Kaba; Nobuyuki Umezu
Proc. of CAD '20, Jul. 2020, [Reviewed] - Improved Algorithm to Trace Boundary Curves on Two-Dimensional Square Meshes
Masatomo Inui; Munekazu Kawano; Issei Watanabe; Nobuyuki Umezu
International Journal of Automation Technology (IJAT), Jul. 2020, [Reviewed] - Geometric simulation of power skiving of internal gear using solid model with triple-dexel representation
Masatomo Inui; Yu Huang; Hideaki Onozuka; Nobuyuki Umezu
Procedia Manufacturing, 23 Jun. 2020, [Reviewed] - Milling simulation-based method to evaluate manufacturability of machine parts
Masatomo Inui; Tong Zhang; Nobuyuki Umezu, American Society of Mechanical Engineers (ASME)
Proceedings of the ASME Design Engineering Technical Conference, 2020 - Bounded distance field for assisting interactive layout design of water circuits
Inui, M.; Imai, T.; Umezu, N., JSME
JAMDSM, Dec. 2019, [Reviewed] - Pseudo-3D Display Based on Head Tracking for Viewpoint Image Generation
Yuki Kubota; Nobuyuki Umezu, Corresponding
Proc. of IEEE GCCE 2019, Oct. 2019, [Reviewed] - CLEARANCE MEASUREMENT OF 3D OBJECTS USING ACCESSIBILITY CONE
Masatomo Inui; K. Nishimiya; Nobuyuki Umezu
ASME IDETC/CIE 2019, Aug. 2019, [Reviewed] - Milling simulation-based approach for determining optimal milling direction of ejector pin
Tong Zhang; Masatomo Inui; Nobuyuki Umezu
Proc. of I3CDE 2019, Jul. 2019, [Reviewed] - GEOMETRIC APPROACH FOR EVALUATING MANUFACTURABILITY OF PARTS PRODUCED WITH INJECTION MOLDING AND DIE CASTING
Masatomo Inui; Nobuyuki Umezu
Proc. of Model Based Enterprise Summit, 2019, Apr. 2019, [Reviewed] - Contour-Type Cutter Path Computation Using Ultra-High-Resolution Dexel Model,
Masatomo Inui; Nobuyuki Umezu, {CAD} Solutions, {LLC}
CAD and Applications, 2019, [Reviewed] - Lossy compression with Daubechies wavelet transform for Z-Map Models
Nobuyuki UMEZU; Masatomo INUI
Proc. of ICPE 2018, Nov. 2018, [Reviewed] - Detection of Sphere Colliding Step Shape in Automobile Parts
Shun Nikaido; Masatomo Inui; Nobuyuki Umezu
Proc. of ICPE 2018, Nov. 2018, [Reviewed] - Support for Keyboard Performing Practice with Mirrored Video of Model Performance
Taisuke Nemoto; Nobuyuki Umezu
Proc. of IEEE GCCE 2018, Oct. 2018, [Reviewed] - Development of a Smart Mirror with Life Log Functions and Its Evaluation
Misaki Tani; Nobuyuki Umezu, Best Student Paper Award.
Proc. of IEEE GCCE 2018, Oct. 2018, [Reviewed] - RADIAL RAY REPRESENTATION FOR FAST ANALYSIS OF OPTIMAL CUTTING DIRECTION IN 3+2 AXIS MILLING
Masatomo Inui; Shinji Nagano; Nobuyuki Umezu
Proc. of ISFA 2018, Jul. 2018, [Reviewed] - Fast Computation of Accessibility Cones for Assisting 3+2 Axis Milling
Masatomo Inui; Shinji Nagano; Nobuyuki Umezu, {CAD} Solutions, {LLC}
CAD and Applications, 2018, [Reviewed] - Extraction of Vertical Cylinder Contacting Area for Motorcycle Safety Verification
Masatomo Inui; Nobuyuki Umezu, {CAD} Solutions, {LLC}
CAD and Applications, 2018, [Reviewed] - Visualization of potential sink marks using thickness analysis of finely tessellated solid model
Masatomo Inui; Shunsuke Onishi; Nobuyuki Umezu
Journal of Computational Design and Engineering, 2018, [Reviewed] - Cutter Engagement Feature Extraction Using Triple-Dexel Representation Workpiece Model and GPU Parallel Processing Function
Masatomo Inui; Masayoshi Kobayashi; Nobuyuki Umezu, {CAD} Solutions, {LLC}
CAD and Applications, 2018, [Reviewed] - Rapid Construction of Coarse Indoor Map for Mobile Robots
Eiji Kaneko; Nobuyuki Umezu
Proc. of IEEE GCCE 2017, Oct. 2017, [Reviewed] - Fast Extraction of Cutter Engagement Features by Using the Parallel Processing Function of a GPU
Masatomo Inui; Masayoshi Kobayashi; Nobuyuki Umezu, 切削加工中に工具の切刃に作用する力の解析は，工具の変形量の評価や送り速度制御による切削効率化のための基礎情報として重要である．この種の解析では，切削シミュレーションにおいて，CEF(Cutter Engagement Feature)と呼ばれる工具と工作物の接触領域を計算する必要がある．高精度な解析のためには，工具が微小移動するたびにCEFを再計算する必要があり，膨大な計算時間が必要となってしまう．本研究では，近年性能向上の著しいGPU(Graphics Processing Unit)の並列処理機能を利用して，CEF計算を高速化する手法を提案する．システムを実装し計算実験により手法の有効性を検証した．, The Japan Society for Precision Engineering
Proc. of IEEE CASE 2017, Aug. 2017, [Reviewed] - Visualization of Possible Sink Marks using Thickness Analysis of Finely Tessellated Solid Model
Masatomo Inui; Shunsuke Ohnish; Nobuyuki Umezu
Proc. of ACDDE 2017, Aug. 2017, [Reviewed] - Extraction of Sliding Collision Area of Knee-Form for Automobile Safety Inspections
Masatomo Inu; Kenta Gunj; Nobuyuki Umezu
Proc. of WSCG 2017, Jun. 2017, [Reviewed] - Evaluating the visibility of presentation slides
Genki Sugawara; Nobuyuki Umezu
Proc. of QCAV 2017, May 2017, [Reviewed] - Features contributing sense of scale in photographs
Nobuyuki Umezu
Proc. of QCAV 2017, May 2017, [Reviewed] - Prototype implementation of mirror with built-in display
Misaki Tani; Nobuyuki Umezu
Proc. of QCAV 2017, May 2017, [Reviewed] - Preface for the special issue of 2016 Asian Conference on Design and Digital Engineering (ACDDE2016)
Nomaguchi, Y.; Fukushige, S.; Date, H.; Michikawa, T.; Ohtake, Y.; Umezu, N.
Journal of Advanced Mechanical Design, Systems and Manufacturing, 2017 - 2D Wavelet Transform Data Compression with Error Level Guarantee for Z-Map Models
Nobuyuki Umezu; Keisuke Yokota; Masatomo Inui, Elsevier Ltd
Journal of Computational Design and Engineering, 2017, [Reviewed] - Simple Offset Algorithm for Generating Workpiece Solid Model for Milling Simulation
Masatomo Inui; Nobuyuki Umezu; Masashi Tsukahara
JAMDSM, 2017, [Reviewed] - Photographic Mosaics Maintaining Image Boundaries
Nobuyuki Umezu
Proc. of A-DEWS 2016, Dec. 2016, [Reviewed] - Reduction of reworks by detecting possible manufacturing problems of plastic and diecasting parts in early design stage
Masatomo Inui; Nobuyuki Umezu
Proc. of A-DEWS 2016, Dec. 2016, [Reviewed] - Photographic Mosaics MaintaThickness Visualization based on Distance Field of 3D Objectsining Image Boundaries
Takuya Iwanami; Masatom Inui; Nobuyuki Umezu
Proc. of ICPE 2016, Nov. 2016, [Reviewed] - 2D Wavelet Transform Data Compression with Error Level Guarantee for Z-Map Models
Keisuke Yokota; Nobuyuki Umezu; Masatomo Inui
Proc. of ACDDE 2016, Oct. 2016, [Reviewed] - Solid Model Simplification Using Triple Dexel Representation
Masatomo Inui; Nobuyuki Umezu and Masashi Tsukahara
Proc. of ACDDE 2016, Oct. 2016, [Reviewed] - Photographic Mosaics Maintaining Image Boundaries
Nobuyuki Umezu
Proc. of ACDDE 2016, Oct. 2016, [Reviewed] - GPU-Based Visualization of Knee-Form Contact Area for Safety Inspections
Masatomo Inui; Shunsuke Nakano; Nobuyuki Umezu; Tetsuya Asano
CAD and Applications, Oct. 2016, [Reviewed] - Visualizing Color Term Differences based on Images on the Web
Nobuyuki Umezun; Eriho Takahashi
Journal of Computational Design and Engineering, Oct. 2016, [Reviewed] - Quad Pillars and Delta Pillars: Algorithms for Converting Dexel Model to Polyhedral Model
Masatomo Inui; Nobuyuki Umezu, ASME
Journal of Computing and Information Science in Engineering (JCISE), Sep. 2016, [Reviewed] - Milling Result Visualization for Assisting Process Planning of Mold Parts with Complex Pocket Features
Masatomo Inui; Nobuyuki Umezu
Proc. of ISFA 2016, Aug. 2016, [Reviewed] - Recognition of Narrow and Deep Slot Features of a Part Using External Distance Field
Masatomo Inui; Tomohiro Imai; Nobuyuki Umezu
Proc. of ISAM 2016, Aug. 2016, [Reviewed] - GPU-Based Visualization of Knee-Form Contact Area for Safety Inspections
Masatomo Inui; NobuyMasatomo Inui; Shunsuke Nakano; Nobuyuki Umezu; Tetsuya Asanouki Umezu
Proc. of CAD 2016, Jun. 2016, [Reviewed] - Wavelet Transform Data Compression with an Error Level Guarantee for Z-Map Models
Nobuyuki Umezu; Kazuki Asai; Masatomo Inui, Fuji Technology Press
International Journal of Automation Technology (IJAT), May 2016, [Reviewed] - Shrinking sphere: A parallel algorithm for computing the thickness of 3D objects
Masatomo Inui; Nobuyuki Umezu; Ryohei Shimane, Taylor and Francis Inc.
Computer-Aided Design and Applications, 03 Mar. 2016, [Reviewed] - Wavelet transform data compression with an error level guarantee for Z-map models
Nobuyuki Umezu; Kazuki Asai; Masatomo Inui, Fuji Technology Press
International Journal of Automation Technology, 2016, [Reviewed] - Contents-based Thumbnailing for Short Video
Kazuki Yuasa; Nobuyuki Umezu
Proc. of ACDDE 2015, Nov. 2015, [Reviewed] - Accelerating Thumbnail Generation from JPEG Images
Tatsuya Nakayari; Nobuyuki Umezu
Proc. of ACDDE 2015, Nov. 2015, [Reviewed] - Thinning Algorithm of Front Grille Part Shape for Air Flow Analysis
Masatomo Inui; Nobuyuki Umezu; Masahiko Tadaki
Proc. of ACDDE 2015, Nov. 2015, [Reviewed] - Extracting Object Position Characteristics from Images on the Web
Fiji Kaneko; Nobuyuki Umezu
Proc. of ACDDE 2015, Nov. 2015, [Reviewed] - Computer-Aided Coloring of Monochrome Images
Yuka Kanahama; Nobuyuki Umezu
Proc. of ACDDE 2015, Nov. 2015, [Reviewed] - Visualizing Color Term Differences based on Images on the Web
Nobuyuki Umezu; Eriho Takahashi
Proc. of ACDDE 2015, Nov. 2015, [Reviewed] - Thickness and clearance visualization based on distance field of 3D objects
Masatomo Inui; Nobuyuki Umezu; Kazuma Wakasaki; Shunsuke Sato, Society for Computational Design and Engineering
Journal of Computational Design and Engineering, 01 Jul. 2015, [Reviewed] - Visualizing sphere-contacting areas on automobile parts for ECE inspection
Masatomo Inui; Nobuyuki Umezu; Yuuki Kitamura, Society for Computational Design and Engineering
Journal of Computational Design and Engineering, 01 Jan. 2015, [Reviewed], [Invited] - Parallel Distance Field Computation with GPU and Its Application for Evaluating Part Thickness
Masatomo INUI; Nobuyuki UMEZU; Koudai KOBAYASHI
Proc. of ISFA 2014, Jul. 2014, [Reviewed] - Automatic detection of the optimal ejecting direction based on a discrete Gauss map
Masatomo Inui; Hidekazu Kamei; Nobuyuki Umezu, Society for Computational Design and Engineering
Journal of Computational Design and Engineering, 01 Jan. 2014, [Reviewed], [Invited] - Automatic detection of the optimal ejecting direction based on a discrete Gauss map
Masatomo INUI; Nobuyuki UMEZU; Hidekazu Kamei
Proc. of ACDDE 2013, Dec. 2013, [Reviewed] - Fast Detection of Head Colliding Shapes on Automobile Parts
Masatomo Inui; Nobuyuki Umezu
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Sep. 2013, [Reviewed], [Invited] - A Comparison of Two GPU Accelerated Geometric Milling Simulation Methods
Masatomo INUI; Nobuyuki UMEZU; and Yuki SHINOZUKA
Proc. of ISFA 2012, Mar. 2013, [Reviewed] - Manufacturing Assistance by Specifying Additional Geometric Information to CAD Models
Gunji Hiromichi; Inui Masatomo; Umezu Nobuyuki, 設計段階にCADモデルを用いて，製品機能だけでなく，製品の加工性や組み立て性を評価することが一般的になっている．これらの作業では，簡易な加工シミュレーションや組み立て解析を行うことが多い．本研究では，このような解析時に用いた図形情報を，CADモデルに積極的に付加し製造工程へ送ることで，後工程の作業を軽減し，製造プロセスの一層の効率化実現を目指す．曲面加工や放電加工用データの作成に有用なデータの付加を例に本研究の考え方を示す．, The Japan Society for Precision Engineering
Proceedings of JSPE Semestrial Meeting, 2013 - A COMPARISON OF TWO METHODS FOR GEOMETRIC MILLING SIMULATION ACCELERATED BY GPU
Masatomo Inui; Nobuyuki Umezu; Yuuki Shinozuka
PROCEEDINGS OF THE ASME/ISCIE INTERNATIONAL SYMPOSIUM ON FLEXIBLE AUTOMATION, ISFA 2012, 2013, [Reviewed] - Automatic detection of ejection direction of a part with the minimum undercuts
Masatomo INUI; Hidekazu KAMEI; Nobuyuki UMEZU
Proc. of ACDDE 2012, Dec. 2012, [Reviewed] - Fast Detection of Head Colliding Shapes on Automobile Parts
Masatomo INUI; Nobuyuki UMEZU
Proc. of ACDDE 2012, Dec. 2012, [Reviewed] - Cutter Engagement Feature Extraction by Using Dexel Representation Solid Model
Masatomo Inui; Nobuyuki Umezu
Proc. of ICPE 2012, Nov. 2012, [Reviewed] - Cutter Engagement Feature Extraction by Using Dexel Representation Solid Model
Masatomo Inui; Nobuyuki Umezu
Key Engineering Materials, Nov. 2012, [Reviewed] - 考古学における遺構実測図のベクトル化アルゴリズム
梅津信幸; 長谷川修一, The Institute of Image Information and Television Engineers
映像情報メディア学会 論文誌, Jul. 2012, [Reviewed] - A Comparison of Two GPU Accelerated Geometric Milling Simulation Methods
Masatomo INUI; Nobuyuki UMEZU; Yuki SHINOZUKA
Proc. of ISFA 2012, 18 Jun. 2012, [Reviewed] - フーリエ変換強度差分を用いた欠陥検出法の実装と評価
梅津信幸; 小野達矢; 清水勲; 鵜野克宏, The Japan Society for Precision Engineering
精密工学会論文誌, Jun. 2012, [Reviewed] - Fast Estimation of Milling Result with GPU
Masatomo INUI; Nobuyuki UMEZU; Marie FUSHIMI
Advanced Science Letters, May 2012, [Reviewed] - 仮想的な金型製造によるプレス金型間のクリアランス検証
乾正知; 長谷川裕二; 梅津 信幸, The Japan Society for Precision Engineering
精密工学会論文誌, Jan. 2012, [Reviewed] - Detection of image differences by Fourier transformed magnitude subtraction
Katsuhiro Uno; Isao Shimizu; Hiroyasu Murakami; Nobuyuki Umezu
OPTIK, 2012, [Reviewed] - Fast estimation of milling result with geometric processing unit
Masatomo Inui; Nobuyuki Umezu; Marie Fushimi
Advanced Science Letters, 2012, [Reviewed] - Fast Safety Verification of Interior Parts of Automobiles
Satoru YAMAZAKI; Tatahiro BABA; Nobuyuki UMEZU; Masatomo INUI
Proc. of ICMA 2011, 10 Aug. 2011, [Reviewed] - 並列処理を用いた立体モデルの高速な厚み評価技術の開発
山崎悟; 梅津信幸; 乾正知, The Japan Society for Precision Engineering
精密工学会論文誌, Aug. 2011, [Reviewed] - A Hybrid Collision Detection Method for Anti-Crash
Masatomo INUI; Nobuyuki UMEZU and Yuji HASEGAWA
Proc. of ACDDE 2011, 2011, [Reviewed] - A Dexl Based Algorithm for Evaluating Thickness of Solid Models
Satoru Yamazaki; Nobuyuki Umezu; Masatomo Inui
ACDDE2010, Proc. of Asian Conference of Design & Digital Engineering, 27 Aug. 2010, [Reviewed] - GPU Acceleration of 5-Axis Milling Simulation in Triple Dexel Representation
Masatom Inui; Nobuyuki Umezu
ISFA2010, Proc. of International Symposium of Flexible Automation, 14 Jul. 2010, [Reviewed] - ３方向デクセルモデルによる同時５軸制御加工の幾何シミュレーション
乾正知; 梅津信幸, The Japan Society for Precision Engineering
精密工学会論文誌, Mar. 2010, [Reviewed] - ３方向デクセルモデルとポリゴンモデルの相互変換技術
乾正知; 櫻井貴; 梅津信幸, The Japan Society for Precision Engineering
精密工学会論文誌, Feb. 2010, [Reviewed] - Multiresolution Volume Data Structure for Shape Modeling
N Umezu; Y Shinagawa; TL Kunii
Proceedings of Multi Media Modeling'98, Oct. 1998, [Reviewed]
MISC
- 17-7 Co-Compression Algorithm based on Block Similarities in JPEG Images
HIYAMA Yusuke; UMEZU Nobuyuki
Proceedings of the ... ITE annual convention, 28 Aug. 2013
Books and other publications
- あなたはネットワークを理解していますか？
梅津信幸, Single work
SBクリエイティブ, Mar. 2014 - プログラマのための"伝える"仕事術
梅津信幸, Single work
技術評論社, May 2011 - なぜコンピュータの画像はリアルに見えるのか
Single work
NTT出版, Dec. 2009 - 「伝わる！」説明術
梅津信幸, Single work
筑摩書房, Aug. 2005 - あなたはコンピュータを理解していますか？
梅津信幸, Single work
ソフトバンククリエイティブ, Oct. 2002 - あなたはコンピュータを理解していますか？
梅津信幸, Single work
技術評論社, Oct. 2002
Lectures, oral presentations, etc.
- Recipe Recommendation and Cooking Instruction based on Food Material Recognition
Saki Asahina; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Learning Environment based on an Interactive Projection Table
Midori Kuwahara; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Temporal-Sound based User Interface for Smart Home
Kido Tani; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Character Mosaics: A New Form of Text-based Artistic Representation
Bai Yuming; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Supporting sports instruction with comparative display of forms
Souta Akiyama; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Chord-based Visualization of Temporal structure of Symphony
Kentaro Ishikawa; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Webcam-based Categorization of Task Engagement of PC Users at Work
Tadashi Ohara; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Presenting Text Layout and Color Patterns Suitable for Book Covers
Naoki Kametani; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - Similarity Visualization of Source Code Assignments Submitted in Programming Classes
Motoki Iwai; Nobuyuki Umezu
ISCIU 2021, 11 Dec. 2021
20211211, 20211212 - ジェスチャーに基づくスマートホーム操作インタフェースの提案
谷輝堂・梅津信幸
機械学会茨城講演会, 19 Aug. 2021 - 文字によるモザイク作品の生成手法
白玉明・梅津信幸
機械学会茨城講演会, 19 Aug. 2021 - 連続・非線形に進行するプレゼンテーションシステム
梅津信幸
映像情報メディア学会冬期大会, 18 Dec. 2013 - Wavelet Transform Data Compression with Error Guarantee for Z-Map Models
Kazuki Asai; Nobuyuki Umezu
ISCIU 2013, 01 Dec. 2013 - Multiresolution Photographic Mosaic Maintaining Image Boundaries
Naruaki Sato; Nobuyuki Umezu
ISCIU 2013, 01 Dec. 2013 - Co-Compression Algorithm based on Block Similarities in JPEG Images
Yusuke Hiyama; Nobuyuki Umezu
ISCIU 2013, 01 Dec. 2013 - ウェーブレット変換による形状データ圧縮における誤差の保証
浅井一貴; 梅津信幸; 乾 正知
機械学会茨城講演会, 06 Sep. 2013 - JPEG画像のブロック間の類似性を用いた共圧縮アルゴリズム
桧山佑介; 梅津信幸
映像情報メディア学会年次大会, 30 Aug. 2013 - ウェーブレット変換による形状データ圧縮における誤差の保証
浅井一貴; 梅津信幸
映像情報メディア学会年次大会, 30 Aug. 2013 - 画像中の境界線を保存する多重解像度フォトモザイク
佐藤成晃; 梅津信幸
映像情報メディア学会年次大会, 28 Aug. 2013 - 写真のスケール感をもたらす画像特徴とそのフィルタによる再現
上田康誉; 梅津信幸
映像情報メディア学会冬季大会, 19 Dec. 2012 - 画像中に含まれる人物姿勢の検索システムの開発
宮本寛気; 梅津信幸
映像情報メディア学会冬季大会, 19 Dec. 2012 - デジタルカメラ撮影時の構図決定支援
渡部裕也; 梅津信幸
映像情報メディア学会冬季大会, 18 Dec. 2012 - フーリエ変換差分法による基板画像の欠陥検出
梅津信幸; 清水勲; 鵜野克宏
日本機械学会茨城講演会, 24 Aug. 2012 - 考古学における遺構実測図のデジタル化支援
梅津信幸; 長谷川修一
映像情報メディア学会冬期大会, 22 Dec. 2011 - 2次元フーリエ変換に基づくプリント基板の欠陥抽出
小野達矢; 梅津信幸
映像情報メディア学会冬季大会, 22 Dec. 2011 - Fast Position Matching based On Fourier Transform
Tatsuya Ono; Nobuyuki Umezu
ISCIU 2011, 04 Dec. 2011 - フーリエ変換振幅演算法による画像差異の検出
鵜野克宏; 梅津信幸; 村上博泰; 清水勲
応用物理学会学術講演会, Aug. 2011 - 土器断面図形の検索アルゴリズムの開発
藤田基宏; 梅津信幸
映像情報メディア学会冬期大会, 14 Dec. 2010 - 画像処理用スクリプト言語の開発
三輪勇輔; 梅津信幸
映像情報メディア学会冬期大会, 14 Dec. 2010 - Shift and Rotation Invariant Defect Detection based on Fourier Transform
Tatsuya Ono; Nobuyuki Umezu
ISCIU 2010, 14 Nov. 2010 - A Search Algorithm for Measured Drawings of Pottery
Norihiro Fujita; Nobuyuki Umezu
ISCIU 2010, 13 Nov. 2010 - The Development of an Image Processing Language
Yusuke Miwa; Nobuyuki Umezu
ISCIU 2010, 13 Nov. 2010 - 2次元フーリエ変換に基づく欠陥検出とその応用
小野達矢; 梅津信幸; 乾正知; 清水勲
精密工学会秋季大会学術講演会, 27 Sep. 2010 - Defect Detection based on 2D Fourier Transform and Its Applications
Tatsuya Ono; Nobuyuki Umezu
ISCIU 2009, 07 Nov. 2009 - 高さ情報を考慮したテーブルトップインタフェースの試作
大内謙治; 梅津信幸
映像情報メディア学会冬期大会, 19 Dec. 2007 - ユーザーの意図を推定する画像検索
中野祐介; 梅津信幸
映像情報メディア学会冬期大会, 18 Dec. 2007 - 標準MIDIファイルの可視化による楽分析
迫田真吾; 梅津信幸
映像情報メディア学会冬期大会, 02 Dec. 2005 - ボリュームデータ用ペインティングシステム
橋本浩紀; 梅津信幸
映像情報メディア学会冬期大会, 02 Dec. 2005 - 背景の自動更新による顔検知の軽量アルゴリズム
梅津信幸
動的画像処理実利用化ワークショップ, 03 Mar. 2005
Research Themes
- Enhancing Museum Experience using Low-cost sensors and IoT devices - Personalization, Interactivity, Review -
Grant-in-Aid for Scientific Research (C)
Ibaraki University
Apr. 2024 - Mar. 2027 - プログラミング科目のレポート課題の採点効率化 ~類似答案の可視化と時系列追跡~
基盤研究(C)
Apr. 2021 - Mar. 2024 - 着色と超解像化による、貴重な近代モノクロ写真の能動的レストア
基盤研究(C)
Apr. 2018 - Mar. 2021 - Modeling mental process of reading from human's automatic behavior against typos
Grant-in-Aid for Scientific Research (C)
Ibaraki University
Apr. 2016 - Mar. 2019 - Automatic generation of photographic mosaics for poster presentations
Grant-in-Aid for Challenging Exploratory Research
Ibaraki University
Apr. 2015 - Mar. 2017 - Fast Producibility and Safety Evaluation of Products by Placing Geometric Primitives
Grant-in-Aid for Scientific Research (C)
Ibaraki University
Apr. 2013 - Mar. 2016 - Presentation System with continuous and nonlinear transition
Grant-in-Aid for Challenging Exploratory Research
Ibaraki University
Apr. 2012 - Mar. 2014 - Development of a Computer Aided Digitization System for Measured Drawings of Archaeological Remains
Grant-in-Aid for Young Scientists (B)
Ibaraki University
2010 - 2011
Social Contribution Activities
- プログラミング教室
lecturer
日立シビックセンター科学館, スクラッチを活用したプログラミング教室, 14 Jun. 2025 - 14 Jun. 2025 - みんなのイバダイ学シンポジウム
panelist
茨城大学, 22 Mar. 2025 - 22 Mar. 2025 - 出張オープンラボ@東海村交流館
organizing_member
東海村 歴史と未来の交流館, 11 Jan. 2025 - 12 Jan. 2025 - プログラミング講座
lecturer
日立市 生活環境部 女性若者支援課, 女性デジタル人材育成講座, 27 Nov. 2024 - 18 Dec. 2024 - プログラミング教室
lecturer
東海村立 村松小学校, スクラッチを活用したプログラミング学習, 19 Nov. 2024 - 20 Nov. 2024 - 出張オープンラボ@科学館
organizing_member
27 May 2023 - 28 May 2023 - 出張オープンラボ@科学館
organizing_member
08 Jan. 2023 - 09 Jan. 2023 - 出張オープンラボ@科学館
organizing_member
25 Sep. 2022 - 25 Sep. 2022 - 出張オープンラボ@科学館
organizing_member
27 Aug. 2022 - 28 Aug. 2022
