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International Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 5. Hakodate 1998 
BL (Body Line) Scanner 
The development of a new 3D measurement and Reconstruction system 
Chiyoharu Horiguchi 
Assistant Dept. Manager, Dept.33, System Design 4 
Hamamatsu Photonics K.K. 
812 Joko-cho, Hamamatsu city, Shizuoka prefecture, 431-3196 
E-mail: horigu@sys.hpk.co.jp 
JAPAN 
Commission V, Working Group WGV/4 
KEY WORD: Human body shape measurement, 3D scanner, Image Sensing, Position Sensitive Detector 
ABSTRACT 
BL scanner is a 3D whole body measuring system for underwear and outerwear. In the apparel industry, research and 
development of clothing to provide comfort size to fit and maintain beautiful body shape are pursued quite actively. 
Furthermore, major factories aim at Mass Customize by using CAD and CAM. To realize these purposes, it is necessary 
to develop a measurement system that can detect three dimensional body shape easily, quickly with low cost price. Therefore, 
we developed the BL scanner that is constructed by using an Optical Triangular Surveying. In this system, the light source 
has been developed newly, a compact LED array which provides 32 luminous points. Detector has also been contrived newly, 
a called Segment-PSD ( Position Sensitive Detector ) to improve the detect precision. One scanner head employs a LED 
array and two Segment-PSDs. The 8 sets of scanner head are arranged around a measured human body and moved from the 
top of the headtill the bottom of the feet of a human body. The system’s performance are set: measuring time is about 10 
seconds, accuracy is. — 1 mm. The measuring data is transferred to Windows PC to be displayed in a silhouette, wireframe 
and surface mode. At present, BL scanner is practically used for underwear, and we are trying to convert the measuring data 
to DXF file that can be utilized by apparel CAD. In future we hope to apply the system in medical facilities, sports science, 
amusement etc. 
1. BACKGROUNDOF THE DEVELOPMENT already made for study, there are few systems could be used 
into the practice for commercial base. Therefore, we had a 
1.1 Product of a clothing plan to develop a three dimensional automatic measuring 
system. 
Most of apparel products aim from mass production to 
mass customization. The advantages of this inclination can 1.2 Conceptof the development 
provide so called “size to fit" to customer and a few stock, 
few return clothing to cloth makers and shops. As a progress to develop the BL scanner, we have some 
While a price for traditional tailor-making was expensive, concepts as following. 
one of mass customization is not so expensive because of (1) low product cost to be profitable for commercial base 
benefit of apparel CAD and CAM system. It is a last (2) safety for a measured human body 
problem to practice automatic measurement for pattern (include mechanical, electrical and radiation factor) 
making design. (3) comfortable for a measured person 
Although some whole body measurement systems have (include vibration, sound and brightness factor) 
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