COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM
Assessments of body-segment angular movements are very important in the rehabilitation process. Head angular movements are measured and analyzed for use in studies of stability and posture. However, there is no methodology for assessing angular movements of the head, and it has not been verified whe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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CTU Central Library
2014-08-01
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| Series: | Acta Polytechnica |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/2221 |
| _version_ | 1811266398129750016 |
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| author | Vladimir Socha Patrik Kutilek Ondrej Cakrt Rudolf Cerny |
| author_facet | Vladimir Socha Patrik Kutilek Ondrej Cakrt Rudolf Cerny |
| author_sort | Vladimir Socha |
| collection | DOAJ |
| description | Assessments of body-segment angular movements are very important in the rehabilitation process. Head angular movements are measured and analyzed for use in studies of stability and posture. However, there is no methodology for assessing angular movements of the head, and it has not been verified whether data measured by fundamentally different MoCap systems will lead to the same results. In this study, we used a camera system and a 3DOF orientation tracker placed on the subject’s head, and measured inclination (roll) and flexion (pitch) during quiet stance. The total length and the mean velocity of the traces of the pitch versus roll plots were used to measure and analyze head orientation. Using these methods, we are able to model the distribution of the measured 2D data, and to evaluate stability and posture. The results show that the total lengths and the mean velocities related to the 3DOF orientation tracker do not differ significantly from the total lengths and the mean velocities of traces related to the IR medical camera. We also found that the systems are not interchangeable, and that the same type of system must be used each time. The designed methods can be used for studies not only of head movements but also of movements of other segments of the human body, and can be used to compare other types of MoCap systems, depending on the requirements for a specific rehabilitation examination. |
| first_indexed | 2024-04-12T20:41:27Z |
| format | Article |
| id | doaj.art-4a9807febcd24d959e41df83a42b39e5 |
| institution | Directory Open Access Journal |
| issn | 1210-2709 1805-2363 |
| language | English |
| last_indexed | 2024-04-12T20:41:27Z |
| publishDate | 2014-08-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica |
| spelling | doaj.art-4a9807febcd24d959e41df83a42b39e52022-12-22T03:17:23ZengCTU Central LibraryActa Polytechnica1210-27091805-23632014-08-0154429530010.14311/AP.2014.54.02952115COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEMVladimir Socha0Patrik Kutilek1Ondrej Cakrt2Rudolf Cerny3Faculty of Biomedical Engineering, Czech Technical University in PragueFaculty of Biomedical Engineering, Czech Technical University in Prague2nd Faculty of Medicine — Motol University Hospital, Charles University in Prague2nd Faculty of Medicine — Motol University Hospital, Charles University in PragueAssessments of body-segment angular movements are very important in the rehabilitation process. Head angular movements are measured and analyzed for use in studies of stability and posture. However, there is no methodology for assessing angular movements of the head, and it has not been verified whether data measured by fundamentally different MoCap systems will lead to the same results. In this study, we used a camera system and a 3DOF orientation tracker placed on the subject’s head, and measured inclination (roll) and flexion (pitch) during quiet stance. The total length and the mean velocity of the traces of the pitch versus roll plots were used to measure and analyze head orientation. Using these methods, we are able to model the distribution of the measured 2D data, and to evaluate stability and posture. The results show that the total lengths and the mean velocities related to the 3DOF orientation tracker do not differ significantly from the total lengths and the mean velocities of traces related to the IR medical camera. We also found that the systems are not interchangeable, and that the same type of system must be used each time. The designed methods can be used for studies not only of head movements but also of movements of other segments of the human body, and can be used to compare other types of MoCap systems, depending on the requirements for a specific rehabilitation examination.https://ojs.cvut.cz/ojs/index.php/ap/article/view/2221 |
| spellingShingle | Vladimir Socha Patrik Kutilek Ondrej Cakrt Rudolf Cerny COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM Acta Polytechnica |
| title | COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM |
| title_full | COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM |
| title_fullStr | COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM |
| title_full_unstemmed | COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM |
| title_short | COMPARATIVE MEASUREMENTS OF HEAD ANGULAR MOVEMENTS USING A CAMERA SYSTEM AND A GYROSCOPE SYSTEM |
| title_sort | comparative measurements of head angular movements using a camera system and a gyroscope system |
| url | https://ojs.cvut.cz/ojs/index.php/ap/article/view/2221 |
| work_keys_str_mv | AT vladimirsocha comparativemeasurementsofheadangularmovementsusingacamerasystemandagyroscopesystem AT patrikkutilek comparativemeasurementsofheadangularmovementsusingacamerasystemandagyroscopesystem AT ondrejcakrt comparativemeasurementsofheadangularmovementsusingacamerasystemandagyroscopesystem AT rudolfcerny comparativemeasurementsofheadangularmovementsusingacamerasystemandagyroscopesystem |