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Ch15-I044963.fm Page 72 Tuesday, August 1, 2006 12:58 PM
Ch15-I044963.fm
72 72 Page 72 Tuesday, August 1,2006 12:58 PM

[5] 1. Kapandji (1974). Physiology of the Joints: The Trunck and the Vertebral Column (Trunk &
Vertebral Column), Churchill Livingstone.
[6] Furukawa, D., Mori K., Suenaga, Y. (2002) Human Spine Posture Estimation from 2D Frontal and
Lateral Views Using 3D Physically Precise Spine Model. Proceedings ofMVA2002. 224-227.
[7] Delp S. L., Loan P.(1995) A graphics-based software system to develop and analyze models of
musculoskeletal structures, Comp. Biol. Med. 25:1, 21-34.
TABLE 1
BBHM BASED POSTURE DESCRIPTION FORMAT
data name format sample data semantics
TIMEPOINT float 1.333 time point
SEGID four figures int 0003 bone ID number
MOVEMENT float x 3 0.02,0.01,0 movement (Figure 5)
ROTATION float x 4 0.866, 0.354, 0.25 (125 quaternion in local coordinate

TABLE 2
BBHM DESCRIPTION FORMAT (BONE)
data name format sample data semantics
SEGID four figures int 0003 bone ID number
SEGNAM string right shinbone bone name
VRTNUM int 1082 vertex number
VRTn float x 3 0.1282 0.343 1.849 local coordinate of n-th vertex(0<nSVRTNUM)
SRFNUM int 1254 surface number
SRFLOOPr float x(X+1) 487 486 489 -1 surface loop(0<n5SRFNUM, X>2)(CCW)
LENGTH float 8.3 4.8 48.2 bone length
(sagittal-horizonal axis, frontal-horizonal axis, vertical axis)
NXTSEGNUM int 2 next bones' number
NXTSEGIDm four figures int 4 bone ID of next m-th bone(0<mSNEXTSEGNUM)
NXTSEGCRDm float x 3 -63.3 -39.6 -23.43 local coordinate of connect point of next m-th bone
(0<m£NEXTSEGNUM)
MSLVRTNUM int 4 muscle attached vertex number
MSLVRTCRDp float x 3 -59.2-64.9-19.23 local coordinate of p-th muscle attached vertex
(0<p£NEXTSEGNUM)

TABLE 3
BBHM DESCRIPTION FORMAT (MUSCLE)
data name format sample data semantics
SEGID four figures int 1002 muscle ID number
SEGNAM string right muscle of psoas major muscle name
VRTNUM int 4 number of attachment(fixed end, mobile end, via points)
BONEIDq four figures int 0001 attaching bone ID(0<qfiVRTNUM)
MSRVRTIDq int 3 local coordinate ID(=p) of BONEIDq
MAXFORCE float 10.52 maximum force of natural length
LENGTH float 28.3 muscle length of fundamental standing position