Study on Digital Design Methods for Leather Texture on Plastic Parts

• Project/Area Number: 22246018
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: The University of Tokyo
• Principal Investigator: SUZUKI Hiromasa 東京大学, 先端科学技術研究センター, 教授 (40187761)
• Project Period (FY): 2010-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥48,230,000 (Direct Cost: ¥37,100,000、Indirect Cost: ¥11,130,000); Fiscal Year 2013: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000); Fiscal Year 2012: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000); Fiscal Year 2011: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000); Fiscal Year 2010: ¥21,710,000 (Direct Cost: ¥16,700,000、Indirect Cost: ¥5,010,000)
• Keywords: シボ / 産業用Ｘ線ＣＴ / 3次元スキャニング / テクスチャシンセシス / 産業用X線CT / 表面計測 / X線CT / 加飾 / テクスチャ合成

Research Abstract

Leather texturing is one of the surface decoration technologies for plastic parts. This manufacturing process has been dependent on manual work using chemical etching for graving textures on die surfaces. It hinders generation of aesthetic decoration. Recently NC milling machines are applied using digital 3D data of the leather textures. In this study methods for generating texture data by scanning real leather samples with an X-rays CT scanning system (XCT) was proposed. We developed a method to improve scanning accuracy of XCT and also a method to extend the scanned texture data of a limited area to arbitrary larger areas needed to cover a part surface to be decorated. For the former issue, we found artifact is critical factor for the accuracy and was reduced by our new correction method. For the latter we extended a texture synthesis method to be optimal for leather textures. Leather texture data was applied to a real manufacturing to produce cases of mobile phones made of plastic.

Research Products

• [Journal Article] Feature-preserving outermost-surface polygonization from CT images (2014)
  • Author(s): Michikawa, T., Moriguchi, M., Suzuki, H.
  • Journal Title: Computer-Aided Design and Applications Volume: 11 Issue: 2 Pages: 239-243
  • DOI: 10.1080/16864360.2014.846098
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Feature-aware Partitions from Motorcycle Graph (2014)
  • Author(s): Erkan Gunpinar; Masaki Moriguchi Hiromasa Suzuki; Yutaka Ohtake
  • Journal Title: J. Computer Aided Design Volume: 4 Pages: 85-95
  • DOI: 10.1016/j.cad.2013.09.003
• [Journal Article] The Sinogram Polygonizer for Reconstructing 3D Shapes (2013)
  • Author(s): Daiki Yamanaka, Yutaka Ohtake, Hiromasa Suzuki
  • Journal Title: IEEE TVCG, Transactions on Visualization and Computer Graphics Volume: 19 Issue: 11 Pages: 1911-1922
  • DOI: 10.1109/tvcg.2013.87
• [Journal Article] Edge detection based multi-materialinterface extraction on industrial CT volumes (2013)
  • Author(s): OHTAKE Yutaka, SUZUKI Hiromasa
  • Journal Title: SCIENCE CHINA Information Sciences, Sci. China Inf. Sci. Volume: 56(9) Issue: 9 Pages: 1-9
  • DOI: 10.1007/s11432-013-4987-2
• [Journal Article] Boundary-representable partition of unity for image magnification (2013)
  • Author(s): Yukie Nagai, Yutaka Ohtake, Hideo Yokota, Hiromasa Suzuki
  • Journal Title: Science China Information Sciences November 2013 Volume: Volume 56, Issue 11 Pages: 1-12
• [Journal Article] Boundary Representable Partition of Unity for Image Zooming, (2013)
  • Author(s): Yukie Nagai, Yutaka Ohtake, Hiromasa Suzuki
  • Journal Title: SCIENCE CHINA Information Sciences Volume: 56 Issue: 11 Pages: 1-12
  • DOI: 10.1007/s11432-013-5020-5
  • Peer Reviewed
• [Journal Article] Feature-based 3D CAD Modeling on Smart Device using Multi-touch Gesture (2013)
  • Author(s): Yuna KANG, Hyungki KIM, Hiromasa SUZUKI, Soonhung HAN
  • Journal Title: International Journal of CAD/CAM Volume: 13
• [Journal Article] Editing 3D models on smart devices, J. Computer Aided Design (2013)
  • Author(s): Yuna Kang, Hyungki Kim, Hiromasa Suzuki, Soonhung Han
  • Journal Title: J. Computer Aided Design Volume: 56 Pages: 229-238
  • DOI: 10.1016/j.cad.2013.08.001
• [Journal Article] T Image Segmentation Using FEM with Optimized Boundary Condition (2012)
  • Author(s): Hishida H, Suzuki H, Michikawa T, Ohtake Y, Oota S
  • Journal Title: PLoS ONE Volume: 7(2)
• [Journal Article] CT Image Segmentation Using FEM with Optimized Boundary Condition (2012)
  • Author(s): Hishida H, Suzuki H, Michikawa T, Ohtake Y, Oota S
  • Journal Title: PLoS ONE Volume: 7 Issue: 2 Pages: e31116-e31116
  • DOI: 10.1371/journal.pone.0031116
  • Peer Reviewed
• [Journal Article] Generation of Bi-monotone Patches from Quadrilateral Mesh for Reverse Engineering (2012)
  • Author(s): Erkan Gunpinar
  • Journal Title: Computer Aided Design Volume: 45 Issue: 2 Pages: 440-450
  • DOI: 10.1016/j.cad.2012.10.027
  • Peer Reviewed
• [Journal Article] Creeping Contours: A Multilabel Image Segmentation Method for Extracting Boundary Surfaces of Parts in Volumetric Images (2011)
  • Author(s): Haitham Shammaa, Hiromasa Suzuki, and Yutaka Ohtake
  • Journal Title: ASME Journal of Computing and Information Science in Engineering Volume: Vol.11, Issue.1
  • NAID: 130004660022
• [Journal Article] グラフカットによる異常値耐性のある陰関数曲面生成法 (2011)
  • Author(s): 長井長慧、大竹豊、鈴木宏正
  • Journal Title: 情報処理学会論文誌 Volume: 52(7) Pages: 2308-2317
  • NAID: 40019522513
• [Journal Article] Polygonization of volumetric skeletons with junctions (2011)
  • Author(s): Takashi Michikawa, Hiromasa Suzuki
  • Journal Title: J.Computer-Aided Design Volume: (in press)(掲載確定) Issue: 4 Pages: 822-828
  • DOI: 10.1016/j.cad.2011.06.003
  • Peer Reviewed
• [Journal Article] Creeping Contours : A Multilabel Image Segmentation Method for Extracting Boundary Surfaces of Parts in Volumetric Images (2011)
  • Author(s): Haitham Shammaa, Hiromasa Suzuki, Yutaka Ohtake
  • Journal Title: ASME Journal of Computing and Information Science in Engineering Volume: 11 Issue: 1
  • DOI: 10.1115/1.3569830
  • NAID: 130004660022
  • Peer Reviewed
• [Journal Article] Sparse Grid Distance Transform (2010)
  • Author(s): Takashi Michikawa, Hiromasa Suzuki
  • Journal Title: Graphical Models Volume: 72 Pages: 34-45
  • Peer Reviewed
• [Journal Article] X線CTデータを用いた鋳造部品の鋳巣体積算出法 (2010)
  • Author(s): 菱田寛之, 道川隆士, 鈴木宏正, 大竹豊
  • Journal Title: 精密工学科会誌 Volume: 76 Pages: 960-965
  • NAID: 130000421900
  • Peer Reviewed
• [Journal Article] Neighbor Support Based Speed Function For Level Set Method (2010)
  • Author(s): Xueshu Liu, Yutaka Ohtake, Hiromasa Suzuk
  • Journal Title: Journal of Biological System Volume: 18 Pages: 149-158
  • Peer Reviewed
• [Presentation] CT Image Segmentation for Bone Structures Using Image-based FEM (2013)
  • Author(s): Hiromasa Suzuki, Hiroyuki Hishida, Takashi Michikawa, Yutaka Ohtake, Satoshi, Oota, Naomichi Ogihara, Osamu Kondo
  • Organizer: Proceedings of the 2012 International Conference on the Replacement of Neanderthals by Modern Humans (RNMH)
  • Place of Presentation: to be published from Springer, (accepted)
• [Presentation] Efficient Void Extraction from CT Images (2013)
  • Author(s): Takashi Michikawa, Hiromasa Suzuki, Hiroyuki Hishida, Kouichi Inagaki and Takeshi Nakamura
  • Organizer: Proc. 1st International Conference on Tomography of Materials and Structures (ICTMS 2013)
  • Place of Presentation: Ghent, pp. 175-179, ISBN 978-9-4619713-0-2
• [Presentation] A Design System for 3D Bending Shape of Flexible Printed Circuit in Electronics Device (2013)
  • Author(s): Rie Ohta, Hiromasa Suzuki, Takashi Michikawa, Yutaka Ohtake, Eiji Ohta, Masayoshi Hashima, Yuichi Sato
  • Organizer: CAD Conference
  • Place of Presentation: イタリア、ベルガモ市
• [Presentation] Efficient Void Extraction from CT Images (2013)
  • Author(s): akashi Michikawa, Hiromasa Suzuki, Hiroyuki Hishida, Kouichi Inagaki and Takeshi Nakamura
  • Organizer: 1st International Conference on Tomography of Materials and Structures
  • Place of Presentation: ベルギー、ヘント市
• [Presentation] Computing rectilinear grids by iterative coarsening of grid lines (2013)
  • Author(s): Takashi Michikawa, Isato Iwata, Hiromasa Suzuki, Eiji Ohta, Masayoshi Hashima and Yuichi Sato
  • Organizer: Asian Conference on Design and Digital Engineering
  • Place of Presentation: 韓国ソウル市
• [Presentation] Decomposing Ship Hull to Manufacturable Plates Using Mesh Model (2013)
  • Author(s): Erkan Gunpinar and Hiromasa Suzuki
  • Organizer: Asian Conference on Design and Digital Engineering
  • Place of Presentation: 韓国ソウル市
• [Presentation] Mesh Generation of Porous Metals from X-ray Computed Tomography Volume Data (2013)
  • Author(s): Zhenyu Niu, Hiromasa Suzuki, Yutaka Ohtake and Takashi Michikawa
  • Organizer: Asian Conference on Design and Digital Engineering
  • Place of Presentation: 韓国ソウル市
• [Presentation] X線投影像列からのワイヤフレームモデル構築 (2013)
  • Author(s): 陣内 嶺
  • Organizer: 2013度精密工学会春季大会
  • Place of Presentation: 東京工業大学
• [Presentation] 電子機器の電磁場解析のためのＦＰＣの形状推定に関する研究 (2013)
  • Author(s): 太田理恵
  • Organizer: 2013度精密工学会春季大会
  • Place of Presentation: 東京工業大学
• [Presentation] 四面体メッシュを用いたCT再構成による三次元形状抽出 (2012)
  • Author(s): 山中太記、大竹豊、鈴木宏正
  • Organizer: 2012年度精密工学会春季大会
  • Place of Presentation: 首都大学東京(東京)(招待講演)
  • Year and Date: 2012-03-14
• [Presentation] ボリュームデータからの中立軸および中立面の一括抽出法 (2012)
  • Author(s): 菱田寛之、道川隆士、大竹豊、鈴木宏正、太田聡史、横田秀夫
  • Organizer: 2012年度精密工学会春季大会
  • Place of Presentation: 首都大学東京(東京)(招待講演)
  • Year and Date: 2012-03-14
• [Presentation] Non-Iterative Data-Driven Beam-Harding Correction for Single Material Object (2012)
  • Author(s): Takahiro Nishihata, Yutaka Ohtake, Hiromasa Suzuki, Masaki Moriguchi
  • Organizer: Proc. Conference on Industrial Computed Tomography (ICT)
  • Place of Presentation: University of Applied Sciences Upper Austria, Campus Wels FH OO Forshungs & Entwicklungs GmbH, ISBN 978-3-8440-1281-1, pp.135-142,201
• [Presentation] Edge Detection Based Multi-material Interface Extraction on Industrial CT Volumes (2012)
  • Author(s): Yutaka Ohtake and Hiromasa Suzuki
  • Organizer: Proc. 2012 Asian Conference on Design and Digital Engineering (ACDDE 2012)
  • Place of Presentation: Hilton Niseko Village Hotel, Hokkaido, Japan, 100080
• [Presentation] X線CT画像による繊維状構造の認識に関する基礎研究 (2012)
  • Author(s): 山内雄太
  • Organizer: 2012年度精密工学会秋季大会
  • Place of Presentation: 九州工業大学
• [Presentation] 体積保存則を用いたサイノグラムに基づく単材質用の線質硬化補正 (2012)
  • Author(s): 西畑貴博
  • Organizer: 2012年度精密工学会秋季大会
  • Place of Presentation: 九州工業大学
• [Presentation] Non-Iterative Data-Driven Beam-Harding Correction for Single Material Object, Proc. Conference on Industrial Computed Tomography (2012)
  • Author(s): T. Nishihata
  • Organizer: Conference on Industrial Computed Tomography (ICT)
  • Place of Presentation: University of Applied Sciences Upper Austria
• [Presentation] X線CTからの3D画像を用いた表面凹凸テクスチャーの抽出 (2011)
  • Author(s): 村上明稔, 鈴木宏正, 大竹豊, 道川隆士
  • Organizer: 2011年度精密工学会秋季大会
  • Place of Presentation: 金沢大学(金沢)(招待講演)
  • Year and Date: 2011-09-20
• [Presentation] X線CTからの3D画像を用いた表面凹凸テクスチャーの抽出 (2011)
  • Author(s): 村上明稔, 鈴木宏正, 大竹豊, 道川隆士
  • Organizer: 2011年度精密工学会秋季大会講演論文集
  • Place of Presentation: G74
• [Presentation] Multi-material Volume Segmentation for Isosurfacing Using Overlapped Label Propagation (2011)
  • Author(s): Niizaka,T., Ohtake,Y., Michikawa,T., Suzuki,H.
  • Organizer: WSCG'2011 - 19-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision'2011
  • Place of Presentation: pp.41-48
• [Presentation] Non-manifold Medial Surface Reconstruction from Volumetric Data (2010)
  • Author(s): T.Michikawa, H.Suzuk
  • Organizer: Advances in Geometric Modeling and Processing
  • Place of Presentation: Castro Urdiales, Spainf
  • Year and Date: 2010-06-16
• [Remarks]
  • URL: https://sites.google.com/site/fdenghome/
• [Remarks] 障碍者向特別講義:高付加価値化のためのデジタルデザイン、DO IT Japan、東京大学先端科学技術研究センター、バリアフリー部門、2012年8月2日
• [Remarks]
  • URL: http://www.den.rcast.u-tokyo.ac.jp/
• [Patent(Industrial Property Rights)] 線投影画像補正装置及びX線投影画像補正方法 (2013)
  • Inventor(s): 竹豊、西畑貴博、鈴木宏正
  • Industrial Property Rights Holder: 国立大学法人東京大学
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2012-089386
  • Filing Date: 2013-03-28
  • Overseas
• [Patent(Industrial Property Rights)] 画像解析装置及びプログラム (2013)
  • Inventor(s): 菱田寛之、稲垣宏一、中村武志、山内雄太、鈴木宏正、道川隆士、大竹豊
  • Industrial Property Rights Holder: 東京大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2013-09-30
• [Patent(Industrial Property Rights)] Ｘ線投影画像補正装置及びＸ線投影画像補正方法 (2013)
  • Inventor(s): 大竹豊、西畑貴博、鈴木宏正
  • Industrial Property Rights Holder: 大竹豊、西畑貴博、鈴木宏正
  • Industrial Property Rights Type: 特許
  • Filing Date: 2013-03-28
  • Overseas
• [Patent(Industrial Property Rights)] Ｘ線投影画像補正装置及びＸ線投影画像補正方法 (2012)
  • Inventor(s): 大竹豊、西畑貴博、鈴木宏正
  • Industrial Property Rights Holder: 大竹豊、西畑貴博、鈴木宏正
  • Industrial Property Rights Type: 特許
  • Filing Date: 2012-04-10
• [Patent(Industrial Property Rights)] 形状の抽出方法及び形状抽出システム (2011)
  • Inventor(s): 大竹豊、鈴木宏正、新坂拓真、山中太記
  • Industrial Property Rights Holder: 東京大学
  • Industrial Property Number: 2011-015002
  • Filing Date: 2011-07-06