کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5006736 1461486 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of the calibration procedure on the metrological performances of stereophotogrammetric systems for human movement analysis
ترجمه فارسی عنوان
اثرات روش کالیبراسیون بر روی عملکرد سنجش سیستم های استریو فتو تگمتریک برای تحلیل جنبش انسان
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی
This paper proposes a methodology for evaluating the effect of different stereophotogrammetric system calibration procedures on the calculation of marker-based kinematics information. The methodology, based on calibrating the system using data recorded from capture volumes of different sizes and in trials of different durations, was applied to two different systems. The calibration data were used to reconstruct the static and dynamic position and orientation in space of a rigid wand carrying markers in known positions. The inaccuracies in the reconstruction of distances and angles from the wand markers were independent on the calibration data, with average errors lower than 1.7 mm and 0.7°, respectively. Similar results were obtained from human gait data, with the highest variations observed in the transverse plane kinematics and in the foot segment, suggesting that successful calibration procedures of different durations and performed in different volumes did not affect the metrological performance of the investigated systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 101, April 2017, Pages 265-271
نویسندگان
, , , , , ,