Tokushima University / Educator and Researcher Directory --- Yamamoto, Kenji

Personal Web Page

https://researchmap.jp/kenji.yamamoto (researchmap)

Field of Study

Subject of Study

Book / Paper

Book:

1.	Morioka Toshio, Awaji Yoshinari, Enami Kazumasa, Miyamoto Yutaka, Morita Itsuro, Okumura Yukihiko, Suzuki Masatoshi, Takara Hidehiko, Terada Jun and Kenji Yamamoto : Introduction: Space-Division Multiplexing in Optical Communication Systems, Springer, Aug. 2022. (Link to Publication Site) ● Publication site (DOI): 10.1007/978-3-030-87619-7_1 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/978-3-030-87619-7_1 (DOI: 10.1007/978-3-030-87619-7_1)

Academic Paper (Judged Full Paper):

1.	Masaki Umemoto, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Evaluation of Depth Perception Characteristics in Plane Fog Screen, ITE Transactions on Media Technology and Applications, 2024. (Link to Publication Site) ● Publication site (DOI): 10.3169/mta.12.68 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.3169/mta.12.68 (DOI: 10.3169/mta.12.68)
2.	Kohsuke Nakanishi, Haruki Mizushina and Kenji Yamamoto : Increasing vection strength by video processing in the periphery of the visual field in a driving simulator, Optical Review, Vol.31, No.1, 135-143, 2023. (Link to Publication Site) ● Publication site (DOI): 10.1007/s10043-023-00854-4 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85180169944 (DOI: 10.1007/s10043-023-00854-4, Elsevier: Scopus)
3.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : Evaluation of usability improvement of contactless human interface with visual, auditory, and tactile sensation for aerial display, Optical Review, 2023. (Link to Publication Site) ● Publication site (DOI): 10.1007/s10043-023-00853-5 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s10043-023-00853-5 (DOI: 10.1007/s10043-023-00853-5)
4.	Haruki Mizushina, Yusuke Fukuta, Shiro Suyama and Kenji Yamamoto : Improvement of Perceived Depth Degradation by Motion Parallax in Binocular Stereopsis With Left-Right Retinal Image Mismatch, IEEE Transactions on Industry Applications, 2023. (Link to Publication Site) ● Publication site (DOI): 10.1109/TIA.2023.3302275 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1109/TIA.2023.3302275 (DOI: 10.1109/TIA.2023.3302275)
5.	Akua Kawakami, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Analysis and fabrication for the dimensional expansion of arc 3D display to cone-shaped display, Optical Review, 2022. (Summary) This paper successfully describes the analysis between 3D image location in air and arc-shaped scratches on cone-shaped arc 3D display. The arc 3D display is typically flat and its analysis has already appeared. However, when we would like to extend it to cone shape, the dimensional extension of analysis should be necessary, since the lack of adequate analysis increases the approximation error of the 3D image location. In this paper, we discuss the three-dimensional analysis for cone-shaped arc 3D display. In addition, we describe the actual fabrication of a cone-shaped arc 3D display and show that the 3D image can be displayed similarly with the analysis. (Link to Publication Site) ● Publication site (DOI): 10.1007/s10043-022-00772-x (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s10043-022-00772-x (DOI: 10.1007/s10043-022-00772-x)
6.	Boaz Jessie Jackin, Lode Jorissen, Ryutaro Oi, Koki Wakunami, Kenji Yamamoto, Yasuyuki Ichihashi, Philippe Bekaert and Gauthier Lafruit : Design and calibration of curved and see-through integral imaging 3D display, Virtual Reality, 2022. (Link to Publication Site) ● Publication site (DOI): 10.1007/s10055-022-00686-8 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s10055-022-00686-8 (DOI: 10.1007/s10055-022-00686-8)

Academic Paper (Unrefereed Paper):

1.	小柴恵一, Kenji Yamamoto, 伊藤央二 and 尾久土正己 : Realism of Dome Videos across Dome Shapes and Screen Illuminances, --- A Case of the Dome Video Screening about the Mega Sport Event ---, 観光学, Vol.27, 1-9, 2022. (Summary) The purpose of this study was to compare and verify the effects of differences in specifications among domes on the realism of dome image. Until now, there has been little research on how external factors affect the realism of dome image. This was because the equipment used to show dome image is proprietary, and it has been very difficult to show the same content with the same specification at all planetariums at the same time. In this study, we cooperated with the``Immersive LIVE Viewing'' project of Tokyo 2020 live distribution of the Olympic Games, and conducted a questionnaire survey to analyze the relationship between the audience's impression evaluation and external factors when viewing sport video. These results suggested that the dome tilt had no effect on the sense of presence, the smaller the dome diameter, the more `feeling good' and `powerful', and the higher the screen illuminance, the higher the sense of presence evaluation and the higher the clarity of the images. After the further verification, we believe that a high sense of presence through dome image may become important as one of methods of virtual tourism. (Keyword) VR / dome video / high presence / mega sport event / virtual tourism (Link to Publication Site) ● Publication site (DOI): 10.19002/AA12438820.27.1 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390575760876346240 ● Search Scopus @ Elsevier (DOI): 10.19002/AA12438820.27.1 (DOI: 10.19002/AA12438820.27.1, CiNii: 1390575760876346240)

Proceeding of International Conference:

1.	Kenji Yamamoto, Akua Kawakami, Masaki Umemoto, Kosuke Takahashi, Sasai Yuuya, Yasunori Terao, Kohsuke Nakanishi, Naoto Nakayama, Yuto Morishita, Inoue Akito, Ogura Shuto, Saito Kenta, Machigashira Yuta, Nakanishi Kotomi, Haruki Mizushina, Takahashi Kyosuke and Inomo Hitoshi : Emergency-drill Scenarios to Build Ability against Unexpected Situations on Tsunami, The 29th International Display Workshops (IDW '23), Vol.30, 3DSAp2-18L, Niigata, Dec. 2023.
2.	Inomo Hitoshi, Akua Kawakami, Masaki Umemoto, Kosuke Takahashi, Sasai Yuuya, Yasunori Terao, Kohsuke Nakanishi, Naoto Nakayama, Yuto Morishita, Inoue Akito, Ogura Shuto, Saito Kenta, Machigashira Yuta, Nakanishi Kotomi, Haruki Mizushina, Takahashi Kyosuke and Kenji Yamamoto : Emergency Drill Using Online Visual System, The 29th International Display Workshops (IDW '23), Vol.30, 3DSAp2-19L, Niigata, Dec. 2023.
3.	Takahashi Kyosuke, Akua Kawakami, Masaki Umemoto, Kosuke Takahashi, Sasai Yuuya, Yasunori Terao, Kohsuke Nakanishi, Naoto Nakayama, Yuto Morishita, Inoue Akito, Ogura Shuto, Saito Kenta, Machigashira Yuta, Nakanishi Kotomi, Haruki Mizushina, Kenji Yamamoto and Inomo Hitoshi : Emergency-drill Online Visual System to Build Ability against Unexpected Situations, The 29th International Display Workshops (IDW '23), Vol.30, 3DSAp2-17L, Niigata, Dec. 2023.
4.	Kohsuke Nakanishi, Haruki Mizushina and Kenji Yamamoto : Increasing Vection Strength by Adding Optical Flow with Random Dots in the Peripheral Visual Field, The 29th International Display Workshops (IDW '23), Vol.30, 3DSAp2-4, Niigata, Dec. 2023.
5.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : Evaluation on Usability of Aerial Display by Changing the Timing of Providing Multimodal Feedback, The 29th International Display Workshops (IDW '23), Vol.30, 3DSAp1-4, Niigata, Dec. 2023.
6.	Naoto Nakayama, Haruki Mizushina and Kenji Yamamoto : Encoding of Stereo Images Using Bilateral Filters and Different Compression Ratio for Limited Communication Bandwidth, The 29th International Display Workshops (IDW '23), Vol.30, 3DSA7/3D7-4, Niigata, Dec. 2023.
7.	Yuto Morishita, Munekazu Date, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Multi-view DFD (Depth-Fused 3D) Rendering with Linear Blending, The 29th International Display Workshops (IDW '23), Vol.30, 3D2/3DSA2-4, Niigata, Dec. 2023.
8.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Effects of Motion Parallax Smoothness and Head Moving Range on Reduction of The Cardboard Effect, The 29th International Display Workshops (IDW '23), Vol.30, 3D2/3DSA2-3, Niigata, Dec. 2023.
9.	Haruki Mizushina, Haruto Taguchi, Kazuki Seko, Shingo Nishiyama, Shiro Suyama and Kenji Yamamoto : Image Switching Methods for an Arc 3D Display Using Projectors and Its Optimal Pixel Structure, 2023 IEEE Industry Applications Society Annual Meeting, Nashville, Oct. 2023. (Keyword) Motion parallax / Binocular disparity / Perceived depth / Stereoscopic display (Link to Publication Site) ● Publication site (DOI): 10.1109/IAS54024.2023.10406372 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85186120744 (DOI: 10.1109/IAS54024.2023.10406372, Elsevier: Scopus)
10.	Naoto Nakayama, Haruki Mizushina and Kenji Yamamoto : Evaluation of the Visual Effect of a Blur Filter on a Highly Compressed Stereo Image with a Quality Difference between the Left and Right Images, The 23nd International Meeting on Information Display, E77-5, Busan, Aug. 2023.
11.	Yuto Morishita, Date Munekazu, Matsumoto Ayumi, Kitahara Masaki, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Realization and Evaluation of Accurate Depth Perception by Stereo DFD (Depth-Fused 3D) Rendering in Multilayer Stereo Display, The 23nd International Meeting on Information Display, E69-3, Busan, Aug. 2023.
12.	Kohsuke Nakanishi, Haruki Mizushina and Kenji Yamamoto : Increasing Vection Strength by Adding Expanding Grating at Periphery of Visual Field, The 23nd International Meeting on Information Display, E53-4, Busan, Aug. 2023.
13.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : Evaluation of Appropriate Feedbacks on Operating Aerial Display in Three Senses: Tactile by Vibration to Sole of Foot, Visual, and Auditory, The 23nd International Meeting on Information Display, P2-048, Busan, Aug. 2023.
14.	Kohsuke Nakanishi, Kenji Yamamoto and Haruki Mizushina : Increasing Vection Strength by Stretching Image in the Periphery of the Visual Field, Proc. OPTICAL & PHOTONICS International Conference, LDC9-02, Yokohama, Apr. 2023.
15.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : Aerial Display using Sensory Feedbacks: Tactile by Vibration to Sole of Foot, Visual, and Auditory, Proc. OPTICAL & PHOTONICS International Conference, LDC7-03, Yokohama, Apr. 2023.
16.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Evaluation of Motion Parallax to Reduce Cardboard Effect when Stimulus of Stereo Images Are Natural Scene, The 29th International Display Workshops (IDW '22), Vol.29, 3Dp1-4, Fukuoka, Dec. 2022. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85175248481 (Elsevier: Scopus)
17.	Masaki Umemoto, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Depth Perception Characteristics in Plane Fog Screen, The 29th International Display Workshops (IDW '22), Vol.29, 3D5-3, Fukuoka, Dec. 2022. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85175262802 (Elsevier: Scopus)
18.	Kazuya Fujikawa, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Evaluation of Dot Size for Readability of Information Used in Highly-Visually-Secured Depth-Fused 3D (HiViS 3D), The 13th International Conference on 3D Systems and Applications, P2-2, Online, Nov. 2022.
19.	Yurie Nakagawa, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Pseudo Gaze Direction Change Method with Wide Gaze Direction Range by Spatial Blending of 2D Face Videos with Different Gaze Direction, The 13th International Conference on 3D Systems and Applications, S11-3, Online, Nov. 2022.
20.	Naoto Nakayama, Haruki Mizushina and Kenji Yamamoto : Experimental Evaluation of Stereo Still Image with Image Quality Difference Using the Blur Filter, The 13th International Conference on 3D Systems and Applications, S10-3, Online, Nov. 2022.
21.	Kenji Yamamoto : 3D technologies toward ultra-realistic communication, Vehicle Displays & Interfaces Technical Symposium, Oct. 2022.
22.	Haruki Mizushina, Yusuke Fukuta, Shiro Suyama and Kenji Yamamoto : Improvement of perceived depth instability by motion parallax in binocular stereopsis with left-right retinal image mismatch, 2022 IEEE Industry Applications Society Annual Meeting, 2022-IASAM-0181-1-8, Online, Oct. 2022. (Keyword) Motion parallax / Binocular disparity / Perceived depth / Stereoscopic display (Link to Publication Site) ● Publication site (DOI): 10.1109/IAS54023.2022.9939943 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85142857132 (DOI: 10.1109/IAS54023.2022.9939943, Elsevier: Scopus)
23.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Effects of motion parallax and shooting distance for reducing cardboard effect in stereo images, The 22nd International Meeting on Information Display, 412, Online, Aug. 2022.
24.	Akua Kawakami, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Relationship between cone shape and perceived image in cone-shaped arc 3D display, The 22nd International Meeting on Information Display, 411, Online, Aug. 2022.
25.	Masaki Umemoto, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Evaluation of depth perception characteristics in plane fog screen, The 22nd International Meeting on Information Display, 407, Online, Aug. 2022.
26.	Akua Kawakami, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Expansion of arc 3D display to cone-shaped display, Proc. OPTICAL & PHOTONICS International Conference, LDC8-02, Yokohama, Apr. 2022. (Summary) Arc 3D display is one of the methods for presenting stereoscopic images to realize smooth motion parallax.This technology is conventionally used for flat displays, but this paper tries to expand it for cone-shaped displays. In this paper, the analysis of the position of the three-dimensional image generated by a cone-shaped Arc 3D display is discussed and is confirmed by the experiments using an actual cone-shaped Arc 3D display.
27.	Yurie Nakagawa, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Pseudo gaze direction change for 2D communications by spatial blending and boundary blending of luminance of 2D face images with different gaze directions, The 28th International Display Workshops (IDW '21), Vol.28, 486-489, Online, Dec. 2021. (Keyword) Security DFD Display / Combining Random Dot Configuration / Fuzzy Luminance Distribution (Link to Publication Site) ● Publication site (DOI): 10.36463/idw.2021.0486 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390291932664194816 ● Search Scopus @ Elsevier (DOI): 10.36463/idw.2021.0486 (DOI: 10.36463/idw.2021.0486, CiNii: 1390291932664194816)
28.	Kazuya Fujikawa, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Advanced Secure Display Using DFD Display with Fuzzy Perceived Depth Images and Dummy Information, The 28th International Display Workshops (IDW '21), Vol.28, 464-467, Online, Dec. 2021. (Summary) We propose a high-security display that prevents peeping even with computer analysis by using the DFD display with fuzzy depth or color and brain complement. Our high-security display can successfully provide information only to human but prevent recognizing by peeping or camera capture with computer analysis. (Keyword) Security DFD Display / Combining Random Dot Configuration / Fuzzy Luminance Distribution (Link to Publication Site) ● Publication site (DOI): 10.36463/idw.2021.0464 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390291932685418112 ● Search Scopus @ Elsevier (DOI): 10.36463/idw.2021.0464 (DOI: 10.36463/idw.2021.0464, CiNii: 1390291932685418112)
29.	Koshiba Keiichi, Kenji Yamamoto, Ito Eiji and Okyudo Masami : Immersive Sport Live Viewing Using Dome Screens, The 28th International Display Workshops (IDW '21), Vol.28, 3D6-4L, Online, Dec. 2021. (Keyword) Dome Screen / Live Viewing (Link to Publication Site) ● Publication site (DOI): 10.36463/idw.2021.0468 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.36463/idw.2021.0468 (DOI: 10.36463/idw.2021.0468)
30.	Naoki Kiyose, Kenji Yamamoto, Haruki Mizushina and Shiro Suyama : Reduction of Perceived Depth Instability in Aerial Image by Using Hand or Tools to Aerial Image Position, The 28th International Display Workshops (IDW '21), Vol.28, 482-485, Online, Dec. 2021. (Summary) Hand reaching action can successfully reduce the perceived depth instability of aerial images. Moreover, hand reaching action with stick held by hand can also reduce instability. This indicates that perceived depths by only visual information and hand reaching action have different process in human brain. (Keyword) Depth perception / Aerial image / Hand-reaching / Non-contact (Link to Publication Site) ● Publication site (DOI): 10.36463/idw.2021.0482 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390010457708715392 ● Search Scopus @ Elsevier (DOI): 10.36463/idw.2021.0482 (DOI: 10.36463/idw.2021.0482, CiNii: 1390010457708715392)
31.	Haruto Taguchi, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Fresnel Arc 3D display for rewriting 3D image with high-pixel-density arrangement and automatic arc-scratch generation, The 28th International Display Workshops (IDW '21), Vol.28, 889-892, Online, Dec. 2021. (Summary) We proposed and developed a new Arc-3D-image rewriting method utilizing Fresnel arc structure with high-pixel-density arrangement and automatic generation of scratches. Fresnel Arc 3D display provides easy way of rewriting without arc-pixel selection difficulty. Proposed arrangement provides high-density pixels. Automatic generation of Arc-shaped scratch is realized by using cutting plotter. (Keyword) Arc-3D / Fresnel Arc-3D / Rewriting image / Pixel arrangement / Automatic (Link to Publication Site) ● Publication site (DOI): 10.36463/idw.2021.0889 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390854882572027392 ● Search Scopus @ Elsevier (DOI): 10.36463/idw.2021.0889 (DOI: 10.36463/idw.2021.0889, CiNii: 1390854882572027392)
32.	Koshiba Keiichi, Kenji Yamamoto, Ito Eiji and Okyudo Masami : Practical experiments of Immersive Dome Sport Live Viewing, The 12th International Conference on 3D Systems and Applications, S2-1, Online, Nov. 2021. (Keyword) Live Viewing / Dome Display
33.	Yuto Mori, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Proposal of a method to reduce visual discomfort of head-mounted displays by moving the lens in accordance with eye movements, The 12th International Conference on 3D Systems and Applications, 22-23, Online, Nov. 2021. (Keyword) Binocular disparity / Motion Parallax / Depth perception
34.	Takeshi Yasui, Kisa Nakano, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Improvement on sticking depth issue of 3D image by Arc 3D display with moving head or moving Arc 3D display, The 12th International Conference on 3D Systems and Applications, 25-26, Online, Nov. 2021. (Summary) Arc 3D display with moving head or moving Arc 3D display can successfully solve the perceived-depth sticking problem to real object surface in front of designed distant 3D image, although stereoscopic display cannot solve the sticking problem. This is because continuous motion parallax is satisfied in Arc 3D display but not in stereoscopic display, which is effective to perceive the designed depth. (Keyword) Binocular disparity / Motion Parallax / Depth perception
35.	Yurie Nakagawa, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Pseudo face-orientation change for 2D communications by spatial blending of 2D face images with different face orientations, The 21st International Meeting on Information Display, 453, Online, Aug. 2021.
36.	Kazuya Fujikawa, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Advanced secure display using DFD display with fuzzy perceived depth images by combining random dot configuration and fuzzy luminance distribution, The 21st International Meeting on Information Display, 437, Online, Aug. 2021.
37.	Yuto Mori, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Visual discomfort reduction in head mounted display by moving the lens according to the gaze-point motion, The 21st International Meeting on Information Display, 57, Online, Aug. 2021.
38.	Takeshi Yasui, Kisa Nakano, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Depth Perception of Distant 3D Image Displayed Behind a Real Object by Arc 3D Display, The 21st International Meeting on Information Display, 436, Online, Aug. 2021.
39.	Naoki Kiyose, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Reduction of Perceived Depth Instability in Aerial Image by Reaching Hand for Aerial image Position, The 21st International Meeting on Information Display, 438, Online, Aug. 2021.
40.	Haruto Taguchi, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Proposes and developments of a new Arc-3D-image rewriting method in Fresnel Arc 3D display, The 21st International Meeting on Information Display, 84, Online, Aug. 2021. (Summary) We proposed and developed a new Arc-3D-image rewriting method utilizing Frestnel structure. To solve unselectivity problem in Arc-shaped scratches, we utilize Fresnel structure for packing Arc-shaped scratches into compact-vertical rectangle region without unselectivity in Arc 3D display. Pixel arrangement method with almost same aspect ratio are proposed and developed. (Keyword) Arc-3D / Fresnel Arc-3D / Rewriting image pixel arrangement / Automatic generation

Proceeding of Domestic Conference:

1.	町頭悠太, Haruki Mizushina and Kenji Yamamoto : ARを用いた情報提示において注視点に応じてぼけや色を加えた際の視認性とその評価, The Technical Report on the Institute of Image Information and Television Engineers, 3DMT2024-17, Mar. 2024.
2.	小倉秀斗, 小林敏秀, 鈴木敦, 中越亮佑, Haruki Mizushina and Kenji Yamamoto : 光の反射強度も利用したToFカメラからの3次元モデル作成, The Technical Report on the Institute of Image Information and Television Engineers, 3DMT2024-13, Mar. 2024.
3.	Masaki Umemoto, Haruki Mizushina and Kenji Yamamoto : 大型平面フォグスクリーンに 2 次元画像を投影した際に生じる奥行き知覚と臨場感の評価, HODIC学生シンポジウム, 2-5, Feb. 2024.
4.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 撮影条件によって生じる書き割り効果と運動視差の低減効果との関係の評価, HODIC学生シンポジウム, 3-1, Feb. 2024.
5.	Akua Kawakami, 奥山大輔, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 360 度 3D 像を表示できる線刻型立体方式の提案と製作, HODIC学生シンポジウム, 2-4, Feb. 2024.
6.	Akua Kawakami, 奥山大輔, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 円錐形アーク3D表示における視点位置に対応した異なる3D像の表示, Optics & Photonics Japan 2023, 29aG1, Nov. 2023.
7.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : 空中ディスプレイの操作における空中像と多感覚フィードバックの提示位置のずれの影響の評価, IEICE Technical Report, HIP2023-61, Oct. 2023. (Keyword) 観察距離
8.	Naoto Nakayama, Haruki Mizushina and Kenji Yamamoto : バイラテラルフィルターを用いた画質差のあるステレオ画像の評価, The Technical Report on the Institute of Image Information and Television Engineers, 3DMT2023-42, Oct. 2023.
9.	Kohsuke Nakanishi, Haruki Mizushina and Kenji Yamamoto : 映像視野周辺部へのランダムドット視覚映像の合成によるベクション強度増大の試み, 日本視覚学会2023夏季大会, Io02, Sep. 2023.
10.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 運動視差による書き割り効果低減において画像切り替え間隔と頭部運動範囲が与える影響, 日本視覚学会2023夏季大会, Io03, Sep. 2023.
11.	Yuto Morishita, 伊達宗和, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : リニアブレンディングを用いた多視点DFD(Depth-fused 3D)レンダリング, 2023年第3回ホログラフィック・ディスプレイ研究会, No.6, Sep. 2023.
12.	井面仁志, 高橋亨輔, Kenji Yamamoto and Haruki Mizushina : 災害時の即興的対応能力向上訓練システムの開発, 安全工学シンポジウム2023, 158-161, Jun. 2023.
13.	Akua Kawakami, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : アーク3D表示における観察位置に依存しない像の表示方法の提案とその解析, The Technical Report on the Institute of Image Information and Television Engineers, Vol.47, No.10, 93-96, Mar. 2023.
14.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 奥行の推定が困難な物体での運動視差と書き割り効果の関係, The Technical Report on the Institute of Image Information and Television Engineers, Vol.47, No.10, 85-88, Mar. 2023.
15.	Masaki Umemoto, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 投影角度可変式平面フォグスクリーンに2次元画像を投影した際に生じる奥行き知覚の評価, The Technical Report on the Institute of Image Information and Television Engineers, Vol.47, No.10, 81-84, Mar. 2023.
16.	Yuto Morishita, 伊達宗和, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : ステレオ DFD(Depth-fused-3D)表示における奥行き知覚の基礎評価, HODIC学生シンポジウム, 29-32, Feb. 2023.
17.	Takeshi Yasui, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : アーク3D表示方式における，視点移動及び3D像移動による10m程度の距離にある3D像の奥行き知覚改善, HODIC学生シンポジウム, 37-40, Feb. 2023.
18.	Yurie Nakagawa, Haruki Mizushina and Kenji Yamamoto : 2つの顔映像を組み合わせた簡易的視線表示方式における表示可能な視線方向の検証, HODIC学生シンポジウム, 33-36, Feb. 2023.
19.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : 視覚・触覚・聴覚が及ぼす空中ディスプレイの操作性に関する基礎的評価, The Technical Report on the Institute of Image Information and Television Engineers, Vol.47, No.1, 21-24, Jan. 2023.
20.	Kazuya Fujikawa, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 高セキュリティディスプレイ(HiViS 3D)で使用されるドットサイズと見やすさ，視域の関係, The Technical Report on the Institute of Image Information and Television Engineers, Vol.47, No.1, 25-28, Jan. 2023.
21.	Akua Kawakami, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 円柱形アーク3D表示における知覚される像点の位置の解析, Optics & Photonics Japan 2022, 16aD11, Nov. 2022.
22.	Masaki Umemoto, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 回転式平面フォグスクリーンに投影した2次元画像の奥行き知覚, Optics & Photonics Japan 2022, 16aD10, Nov. 2022.
23.	Haruto Taguchi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : フレネル型線刻を用いたアーク3D表示方式の提案と基礎検討, IEICE Technical Report, Vol.122, No.237, 5-8, Oct. 2022.
24.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 日常的なシーンのステレオ画像で発生した書き割り効果における運動視差の付加による改善効果の評価, IEICE Technical Report, Vol.122, No.213, 47-51, Oct. 2022. (Summary) ステレオ画像において書き割り効果が見られる被験者に対して運動視差を付加したところ，書き割り効果の改善が見られた．書き割り効果は本来の物体の厚みを過小評価してしまうステレオ画像特有の知覚の歪みの一つであり，撮影距離と観察距離の乖離が大きくなるほど起こりやすい．本研究では，様々な距離から撮影した日常的で自然なシーンのステレオ画像において発生する書き割り効果に対して，運動視差を与えることによりそれが低減するかどうかを評価した． (Keyword) 書き割り効果 / 運動視差 / 撮影距離 / 観察距離
25.	Masaki Umemoto, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 平面フォグスクリーンに二次元画像を投影した際に生じる奥行き知覚の評価, The Technical Report on the Institute of Image Information and Television Engineers, Vol.46, No.31, 33-36, Oct. 2022.
26.	Kenji Yamamoto : 山本・水科研究室の紹介, HODIC Circular, Vol.42, No.2, 7-12, Jun. 2022.
27.	Ren Kamada, Haruki Mizushina, Kenji Yamamoto, Shiro Suyama and Munekazu Date : Evaluation of the readability of text displayed on a VELF3D (Visually Equivalent Light Field 3D) display, The Technical Report on the Institute of Image Information and Television Engineers, Vol.46, No.9, 97-100, Mar. 2022.
28.	Toyotaka Tamura, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Effect of stimulus conditions in perception of inclined angle in our proposed pseudo 3D display using perspective of projected 2D images, The Technical Report on the Institute of Image Information and Television Engineers, Vol.46, No.9, 1-4, Mar. 2022.
29.	Takeshi Yasui, Kisa Nakano, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 滑らかな運動視差を有するアーク3D表示方式による遠距離3D像の奥行き知覚の実物体への貼り付き問題の改善, The Technical Report on the Institute of Image Information and Television Engineers, Vol.46, No.2, 21-24, Jan. 2022. (Keyword) アーク3D表示
30.	Yusuke Fukuta, Kenji Yamamoto, Shiro Suyama and Haruki Mizushina : 両眼立体視において左右眼の網膜像サイズに差異が生じている際に発生する奥行き知覚の不安定性の運動視差による改善効果, The Technical Report on the Institute of Image Information and Television Engineers, Vol.46, No.2, 17-20, Jan. 2022. (Keyword) アーク3D表示
31.	Ryo Kiyohara, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : 奥行きが異なる2つの空中像を重畳表示した際にテクスチャが奥行き知覚に与える影響について, The Technical Report on the Institute of Image Information and Television Engineers, Vol.46, No.2, 1-4, Jan. 2022. (Keyword) アーク3D表示
32.	小柴恵一, Kenji Yamamoto, 伊藤央二 and 尾久土正己 : メガスポーツイベントにおけるドーム映像配信, The Technical Report on the Institute of Image Information and Television Engineers, Vol.45, No.37, 27-31, Nov. 2021. (Keyword) ドーム映像 / 高臨場感 / メガスポーツイベント (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290885529490304 (CiNii: 1520290885529490304)
33.	Kazuya Fujikawa, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Advanced secure display using DFD display with variations in depth distribution and dummy information, Optics & Photonics Japan 2021, 29aC9, Oct. 2021. (Summary) We propose a high-security display that uses DFD displays with fuzzy depth or color distribution and brain completion to prevent peeping even with computer analysis. This high-security display provides information only to humans and successfully prevents recognition by peeping eyes and camera shots.
34.	Toyotaka Tamura, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Perceived inclined angle dependency on observation conditions in our proposed pseudo 3D display using perspective effect, Optics & Photonics Japan 2021, 28aC4, Oct. 2021. (Summary) We have proposed a pseudo 3D display using perspective effect of the pictorial cues by projecting 2D images to real slanted surfaces from observer position. Pseudo 3D image successfully has high perceived inclined angle over 80 degrees at adequate observation conditions.
35.	Yusuke Fukuta, Kenji Yamamoto, Shiro Suyama and Haruki Mizushina : Positive effect of motion parallax on suppressing perceived depth instability in binocular stereopsis when the sizes of the left and right retinal images are different, IEICE Technical Report, Vol.121, No.211, 44-49, Oct. 2021. (Summary) 左右の網膜像の大きさが異なる場合の両眼立体視において，奥行き知覚の不安定性は運動視差によって改善できることを明らかにした．ディスプレイ面に対する運動視差と両眼視差による奥行きの方向を一致させていれば，奥行き知覚の不安定性が改善されることが分かった．特に，両眼視差の設定奥行きと一致するように運動視差を加えることによって不安定性を大きく改善できることが分かった． (Keyword) 運動視差 / 両眼立体視 / 奥行き知覚
36.	Yurie Nakagawa, Shiro Suyama, Kenji Yamamoto and Haruki Mizushina : Effect of face image orientation and combination ratio in a simple pseudo gaze direction display system using spatial blending and boundary luminance blending by image reconstruction in brain of luminance of 3D face images with different gaze directions, The Technical Report on the Institute of Image Information and Television Engineers, Vol.45, No.29, 57-60, Oct. 2021.
37.	Yuto Mori, Kenji Yamamoto, Haruki Mizushina and Shiro Suyama : Visual discomfort reduction in head mounted display by sliding short focus lenses according to gaze-point motion, The Technical Report on the Institute of Image Information and Television Engineers, Vol.45, No.29, 49-52, Oct. 2021.
38.	Haruto Taguchi, Haruki Mizushina, Kenji Yamamoto and Shiro Suyama : Arc-3D-image rewriting method with high-pixel density in Fresnel arc 3D display, The Technical Report on the Institute of Image Information and Television Engineers, Vol.45, No.29, 33-36, Oct. 2021.
39.	Naoki Kiyose, Kenji Yamamoto, Haruki Mizushina and Shiro Suyama : Reaching Instability in Depth Perception og Aerial Image Using the Hand Reaching with hand or tools, The Technical Report on the Institute of Image Information and Television Engineers, Vol.45, No.29, 53-56, Oct. 2021. (Summary) 手や道具を空中像に伸ばしていくハンドリーチング法による奥行き知覚の改善法を提案し，視覚情報のみによる空中像の奥行き知覚の不安定性をほぼ抑制できることを明らかにした．具体的には視覚情報のみで空中像を見たとき，実際に表示している位置よりもレンズ側に約 10cm の位置を知覚していたのに対して，手と道具を持った状態のどちらの場合においてもハンドリーチング法を用いるとはレンズ側に 0cm から 4cm 程度の位置を知覚し，不安定性が軽減に成功した．

Et cetera, Workshop:

1.	Kenji Yamamoto and Haruki Mizushina : 第22回関西学生研究論文講演会研究室デモ展示, 第22回関西学生研究論文講演会, Mar. 2024.
2.	小倉秀斗, 小林敏秀, 鈴木敦, 中越亮佑, Haruki Mizushina and Kenji Yamamoto : ToFカメラからの3次元生成における反射強度の直接的な活用, 第22回関西学生研究論文講演会, P11, Mar. 2024.
3.	斎藤健太, Haruki Mizushina and Kenji Yamamoto : 平面空中像の立体感を向上させるための基礎的な評価, 第22回関西学生研究論文講演会, P10, Mar. 2024.
4.	Kenji Yamamoto and Haruki Mizushina : The 30th International Display Workshops 研究室デモ展示, The 29th International Display Workshops (IDW '23), Dec. 2023.
5.	INOUE Akito, Haruki Mizushina and Kenji Yamamoto : ドット群のステレオ画像を用いたセキュリティ表示において視差量とドット密度が覗き見耐性に及ぼす影響, 第23回情報フォトニクス研究グループ研究会(秋合宿)講演予稿集, P10, Sep. 2023.
6.	Kenji Yamamoto and Haruki Mizushina : 日本視覚学会2023夏季大会研究室デモ展示, 日本視覚学会2023夏季大会, Sep. 2023.
7.	Yuto Morishita, Haruki Mizushina and Kenji Yamamoto : ステレオDFD(Depth-fused 3D)表示における奥行き知覚の基礎評価, 4大学合同セミナ, May 2023.
8.	Naoto Nakayama, Haruki Mizushina and Kenji Yamamoto : 狭い通信帯域で自然な立体感を得るために左右眼で画質差を与えたステレオ画像についての評価, 4大学合同セミナ, May 2023.
9.	Kohsuke Nakanishi, Haruki Mizushina and Kenji Yamamoto : 映像の視野周辺部の引き伸ばし処理による視覚誘導性自己運動感覚増大の試み, 4大学合同セミナ, May 2023.
10.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : 振動モーターによる足裏への触覚刺激と視覚・聴覚フィードバックによる空中ディスプレイの操作性向上手法の提案とその評価, 4大学合同セミナ, May 2023.
11.	Naoto Nakayama, Haruki Mizushina and Kenji Yamamoto : 左右で画質差をつけた高圧縮なステレオ画像の見え方の評価, 第21回関西学生研究論文講演会, Mar. 2023.
12.	Kohsuke Nakanishi, Haruki Mizushina and Kenji Yamamoto : 映像の変形によるベクションの強度増大の試み, 第22回情報フォトニクス研究グループ研究会(秋合宿)講演予稿集, 26, Sep. 2022.
13.	Yuto Morishita, Haruki Mizushina, Shiro Suyama, Date Munekazu and Kenji Yamamoto : VELF3Dディスプレイにおける輝度分布の理論値と測定値の比較, 第22回情報フォトニクス研究グループ研究会(秋合宿)講演予稿集, 25, Sep. 2022.
14.	Yasunori Terao, Haruki Mizushina and Kenji Yamamoto : 空中タッチディスプレイにおける足裏への振動によるタッチ感の提示, 第22回情報フォトニクス研究グループ研究会(秋合宿)講演予稿集, 23, Sep. 2022.
15.	Masaki Umemoto, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Evaluation of the perceived depth when projecting images onto a flat fog screen, 第20回関西学生研究論文講演会, 33-34, Mar. 2022.
16.	Kosuke Takahashi, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : Evaluation of Addition of Motion Parallax for Reducing Cardboard Effect on Stereo Images, 第20回関西学生研究論文講演会, 31-32, Mar. 2022.
17.	Akua Kawakami, Haruki Mizushina, Shiro Suyama and Kenji Yamamoto : 円錐面上の線刻によるアーク3D 表示における光線解析と可視化, 第21回情報フォトニクス研究グループ研究会(オンライン合宿)講演予稿集, 43, Sep. 2021.

Report:

1.	Kenji Yamamoto : 2021年度HODIC鈴木・岡田記念賞選考報告, HODIC Circular, Vol.42, No.2, 1-6, Jun. 2022.

Patent:

1.	Haruki Mizushina and Kenji Yamamoto : 2022-100004 (Jun. 2022), .

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Research on the improvement of visibility and usability of aerial displays and the underlying perceptual mechanisms (Project/Area Number: 23K28175 )
Development of Realtime Holographic Display System with Wide Viewing Angle and Large Area Size (Project/Area Number: 22H00535 )
Light field 3D display using non-planar holographic lens array screen (Project/Area Number: 18H03281 )
Research on 3D display technology using hologram screen (Project/Area Number: 16H01742 )
Search by Researcher Number (70402469)

Professor : Yamamoto, Kenji

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)