Hein Daanen Frans Nennie Marc Rioux. 3D anthropometric data collection

Transcription

1 Hein Daanen Frans Nennie Marc Rioux 3D anthropometric data collection

2 Contents Why 3D anthropometry 3D body scanning systems History Methods 3D data processing Clothing applications 2

3 3D scanning compared to manual anthropometry Pro: * Endless amount of body measures * Shape, surface and volume measures * No human variability in derived measures * Scan can always be reprocessed Contra: * Costs and processing complexity 3

4 Overview of whole body 3D scanning systems Daanen HA, Van de Water, GJ. Whole body scanners. Displays 19: , 1998 Rissiek A. Beam me up. Bekleidung Wear 52: 14-15, Simmons KP, Istook C. Comparison of three dimensional body scanners. Textile Magazine 30: 12-16, 2003 D Apuzzo N. 3D body scanning technology for fashion and apparel industry. 4

5 Short history of scanning systems Shadow scanners - LASS (1990) Laser scanners - Cyberware, Vitronic (1994) White light pattern scanners - TC2, Telmat (1995) Millimeter wave scanners - Intellifit (2005) 5

6 Laser scanning techniques Cyberware WB4, X Vitronic Vitus Pro and Smart Hamamatsu Hamano Cyberware WB4 6

7 Laser scanning techniques Vitronic Vitus Pro (TNO) 7

8 Laser scanning techniques Pro s: Reliable proven technology High quality and resolution Many applications available Con s: Expensive Slow (10-20 sec) Cumbersome to transport 8

9 Scanners used in 3D scanning surveys Japan (about 1980) France UK (UK size) Netherlands (CAESAR) Canada (CAESAR) Italy (CAESAR) US (CEASAR) US (US size) Taiwan Korea Brasil Nagano Lectra TC2-2T4 Vitronic Pro Cyberware WB4 Cyberware WB4 Cyberware WB4 TC2-2T4 Vitronic Pro Cyberware WB4 Cyberware WB4 9

10 White light projection TC2 2T4, NX 12 and NX 16 Telmat Inspec 3D Wicks and Wilson Triform NEC Danae 300 Unique Bodyskanner Eyetronics (block projection) 10

11 White light projection 11

12 White light projection Pro s: Affordable Geared to clothing applications Con s: Precision 12

13 Stereophotogrammetry Geodelta Breuckmann University Glasgow (Siebert) Image of a Geodelta 3D head scanner intended for babies to compare 3D shape changes 13

14 Stereophotogrammetry Pro s: Extremely fast Very inexpensive technology Very promising technique for 3D scanning Con s: Software complexity Hardly used 14

15 Millimeter waves Intellifit TNO (no millimeter radiation source needed) 15

16 Millimeter waves Pro s: No need to undress (ease of use) Fast Con s: No need to undress (privacy) Low resolution Expensive 16

17 Data processing Calibrate the scanner Test the scanner using test objects Start scanning Align the scans Merge the scans to one single object Correct the errors (holes, topological errors) Store raw and processed data 17

18 Clothing applications Sizing systems Made-to-measure Clothing fit evaluation 18

19 Clothing sizing system -15 Sixteen charts for men -10 Four stature groups: 168,176,184,192 Four drop types: -15, -10, -5,

20 Made to measure From 3D scan directly to fitting garments Daanen and Hong, Int J Cloth Sc Tech

21 Clothing Fit Body dimensions Fit Clothing dimensions User population* Comfort Garment design Secular trend Aesthetics Material *gender, age, ethniticity, location, social class (Image: Cornell body scan research group) 21

22 Difference between two bra s in mm High precision scans required 22

23 Fit evaluation (1) Virtual Catwalk 23

24 Fit evaluation (2) 24

25 Integration of 3D scans in pattern software Vidya Optitex Browzwear Narcis Lectra Gerber Focus on graphics Poor fit validation 25

26 More information Hein Daanen TNO Defence, Security and Safety BU Human Factors PO Box ZG Soesterberg The Netherlands Tel Fax