3d modelling eng

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20131207在NCHU的EMBA班的專題演講,說明3D列印相關的趨勢與在土坡分析的應用
主講人:中興大學 楊明德教授

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3d modelling eng

  1. 1. Applications of 3D Modeling in Civil Engineering Ming-Der Yang Professor & Chair Department of Civil Engineering, Center for Environmental Restoration & Disaster Prevention National Chung Hsing University
  2. 2. Vita ☛ M.S. in 1993 and Ph.D. in 1996 from Department of Civil and Environmental Engineering and Geodetic Science, The Ohio State University, US. ☛B.S. in 1990 from Department of Civil Engineering National Chiao Tung University, Taiwan. ☛Post-doctor in 1997 at Department of Civil Engineering National Taiwan University, Taiwan.
  3. 3. Recent Publications ☛ Image-based 3D scene reconstruction and exploration in augmented reality. Automation in Construction. 2013, 33:48-60. ☛Landslide-induced levee failure by high concentrated sediment flow - A case of Shan-An levee at Chenyulan River, Taiwan. Engineering Geology. 2011, 123:91–99. ☛Risk Assessment of Debris flows in Songhe, Taiwan. Engineering Geology. 2011,123:100–112. ☛Chapter 12: FORMOSAT-2 Images in Mapping of South Asia Tsunami Disaster in Remote Sensing of Coastal Environments. CEC Press, Taylor & Francis Group, New York.
  4. 4. Awards 2013 Innovation in Mobile Mapping Technology Awards at the 8th International Symposium on Mobile Mapping Technology ---3D model construction on imagery shot by mobile devices 2013 Gold medal at the 16th International Salon of inventions and innovation technologies “Archimedes” --Panoramic Virtual Travel Around The World 4
  5. 5. Outline ☛3D Printing ☛3D Modeling (content) ☛3D Applications ☛Future Goals
  6. 6. The 3rd Industrial revolution —3D Printing The 1st Industrial revolution (1760~1840) ~ the transition to new manufacturing processes (from hand production methods to machines) ~ steam power and machine tools The 2nd Industrial revolution (1867~1914) ~ Technical Revolution (mass production and production line) ~ electricity, internal combustion engine, new materials and substances (alloys, chemicals), and communication tech (telegraph, radio) The 3rd Industrial revolution (1984~ ) ~ additive process distinct from traditional machining techniques (subtractive processes, material removal by cutting or drilling) ~ 3D printer
  7. 7. World tend of 3D printing Microsoft adds 3D printing support to Windows 8.1. Jun. 26, 2013. 3D printers soon in Microsoft stores. UK kids to be taught 3D printing and robotics from age of 5 from 2014. (July 4, 2013) 7
  8. 8. Obama's speech highlights rise of 3D printing (additive manufacturing) US President Obama highlighted 3D printing as new high-tech jobs in US. (February 13, 2013) 3D printing technology can be moved from the research phase to day-to-day use. As tech-obsessed novelty, 3D printing has been used successfully for various tasks, such as making jewelry, medical supplies, or larger projects in industrial design and engineering.
  9. 9. The World's Top 10 Most Innovative Companies in Consumer Electronics 1. Apple (has announced it will begin manufacturing some of its iMacs in 3D printing in US in 2013) 2. Samsung . . 9. MakerBot released Replicator 2 for transforming the 3D printer from experiment to home-office appliance in 2012.
  10. 10. MakerBot Replicator 2X Replicator 2X prodcuts 10
  11. 11. 3D printer (set)
  12. 12. 3D printing process Design drawing *slicing 3D model for additive process *3D model ==>2D images 3D modeling As-built models *pre-production (rapid prototyping) *full-scale production (rapid manufacturing) *tooling applications *post-production customization *Computer aided design *Animation 3D model slicing printing *additive process *materials *printer 3D products
  13. 13. 3D Object Reconstruction Image Photogrammetry 3D scanner LiDAR (Light Detection And Ranging) Image-Based Model (IBM) 13
  14. 14. Device requirement of aerial photogrammetry
  15. 15. RGB+PAN RGB+PAN+NIR 新北市—新板特區 新北市 新板特區 15
  16. 16. Flight Route Planning 16
  17. 17. Photogrammetry 17
  18. 18. Stereo plotter Stereo model
  19. 19. Ground Controlling Surveying 19
  20. 20. Stereo Measurement 20
  21. 21. Contour map 21
  22. 22. 鄉 縣 Overlapping Cadastral maps Flying animation 桐 莿 林 鄉桐莿縣林雲 鄉州溪縣化彰 雲 鄉桐莿縣林雲 鄉州溪縣化彰 鄉 縣 路 州 溪 化 彰 村 防 段 二 路 山 登 漢 堤 村園柑 流 過 導 埔 水 厝 張 下
  23. 23. LiDAR Q680i • • • • P.23 266,000 point /sec 10 – 200 line/sec full waveform technology Resolution of 2 cm
  24. 24. FullWaveForm Full wave form Lidar provides more detailed information Traditional Lidar P.24
  25. 25. 3D Color Clouds 25
  26. 26. 3D Display 26
  27. 27. Chi-Chi dam 27 Cross section profile
  28. 28. Scan speed of 266,000 point/sec Building 28 Temple
  29. 29. 3D river management system 29
  30. 30. Outdoor & indoor 3D tour 3D cyber city Lidar clouds 30 Information Center of Tai-Lu-Go National Park
  31. 31. Image-Based Modeling (IBM) 3D Reconstruction
  32. 32. 3D Reconstruction
  33. 33. 3D Reconstruction
  34. 34. Example of 3D reconstruction Original object SfM image MVS image 3D model
  35. 35. Augmented Reality (AR)
  36. 36. 2009. Aug. 08 Typhoon Morakot
  37. 37. 2009.10.02
  38. 38. Before After 龍華國小 頭坑溪
  39. 39. Debris deposit 頭坑溪 2009.10.09
  40. 40. 2009.10.09 頭坑溪
  41. 41. UAV (Unmanned Aerial Vehicle)
  42. 42. Shot 37 photos
  43. 43. 2D Mosaic
  44. 44. 50
  45. 45. 51
  46. 46. 52
  47. 47. contour slope relief & landuse 53
  48. 48. 3D model analysis of Lugu landslide dam
  49. 49. Location of landslide dam
  50. 50. 鹿谷南清水溝溪上 游堰塞湖周遭環境 UAV photo
  51. 51. 3D model display
  52. 52. 59
  53. 53. 60
  54. 54. Landslide length 205 m Landslide width 110 m Landslide area 1.1 ha Landslide volume 115500 m3
  55. 55. 3D measurement Landsliding area: 1.1 ha Landsliding depth: 15~30 m Landsliding volume: 115,500 m3 Deposit length: 172 m Deposit width (max): 60 m Deposit height: 9.7 m Water depth (max): 4.7 m Water volume: 12,000 m3
  56. 56. Stable assessment of landslide dam Ermini & Casglis (2003) DBI=log(A×H/V) A: catchment area (806ha) H: height of landslide dam (9.7m) V: volume of landslide dam (112,750m3) DBI<2.75 DBI>3.08 2.75<DBI=2.84<3.08 between safe and unsafe
  57. 57. Manmade landslide dams – bird view Upper dam Lower dam
  58. 58. Earth dam
  59. 59. Earth dam
  60. 60. 3D Crash display of artificial landslide dam Before After
  61. 61. 68
  62. 62. Cyber city 69
  63. 63. Goals for the future IBM making 3D construction more efficient in both cost and time. Establishing a platform to store, display, and exchange 3D models. Create business opportunities for all parties through collaboration for various tasks and needs. Expanding 3D applications through join research with international partners. 70
  64. 64. Thanks for your Attention Welcome your visit mdyang@nchu.edu.tw Ming-Der Yang

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