Errors in landmarking and effects on accuracy in 3D anthropometry
We experimentally quantified intra-and inter-measurer errors in landmarking for 35 landmarks in 40 subjects. Two measurers (Measurer-1 and Measurer-2) participated in the landmarking experiment. Errors were defined as the distance between two marks made for the same landmark by the same measurer (intra-measurer error) or by two different measurers (inter-measurer error). To make the first mark invisible when the second mark was made, the first mark was made using an invisible ink pen under black light. Thirty-four body dimensions defined using these landmarks were measured by a third measurer (Measurer-A), and intra-and inter-measurer errors were also quantified. Errors in body dimensions were generally smaller than errors in landmarking, meaning that evaluations of the accuracy of scanner systems using scan-derived body dimensions underestimate errors in landmarking. In 14 body dimensions, measurements based on marks made by Measurer-1 and Measurer-2 were not comparable according to the ISO 20685 criterion. Possible solutions to reduce errors in landmarking and measurements are discussed. Quantitative data on intra-and inter-measurer errors in landmarking may be useful as a reference when evaluating the performance of autolandmarking software.
Makiko Kouchi Masaaki Mochimaru
Digital Human Research Center, National Institute of Advanced Industrial Science and Technology
国际会议
17th World Congress on Ergonomics(第十七届国际人类工效学大会)
北京
英文
1-7
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）