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Visual head motion monitoring
Sieber, Lukáš ; Babinec, Tomáš (referee) ; Richter, Miloslav (advisor)
This bachelor thesis is based on finding of head rotation and position against stationary shoulders from frames captured by web camera in real time. Furthermore the thesis adverts to benefits of using Open CV. It is also included some Open CV function overview, such as optical flow, 3D-2D points corresponding calculation and among others operations with rotation matrix. The end of this thesis provides outcomes evaluation and future work proposals.
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Influence of temporomandibular dysfunction on head position
Veselá, Nikola ; Čakrt, Ondřej (advisor) ; Kučerová, Klára (referee)
Dysfunction in the temporomandibular joint appears to varying extents, depending on the chosen criteria, in at least half of the world's population. Altered afferentation from the orofacial area (for example due to dysfunction in the temporomandibular joint) can, according to research, have an effect on the position of the head, cervical spine and postural stability. However, the issue of the influence of temporomandibular dysfunction on head position or postural stability is still not sufficiently explored and conflicting opinions appear in the literature. The aim of this thesis is to reveal the correlation between dysfunction in the temporomandibular region and changes in postural stability, head position and subjective visual vertical. In the theoretical part, the current knowledge of the influence of the temporomandibular region on the surrounding structures and body posture will be presented using research. The aim of the practical part will be to investigate to what extent and in what time modulated afferentation from the orofacial area will affect the posture, head position and possibly also the subjective perception of the vertical. Measurements will take place on a stabilometric platform, using the Bucket method and further using QR codes and a computer program. The results will be...
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Dependence oftheair consumption and thepositionofthe body on theselectedmethodofdivingkick and swimming speed
Ehl, Sebastian ; Vondrášek, David (advisor) ; Bačáková, Radka (referee)
Title: Dependence of the air consumption and the position of the body on the selected method of diving kick and swimming speed Objectives: The goal of this work is to find out the relationship between the diver's swimming speed and the air consumption while using two different methods of diving kicks - flutter and frog kick. At the same time, assess the dependence of the position of the body and head on the swimming speed and method of diving kicks. Methods: In this work was used method of collecting data in real conditions by measuring devices and statistical evaluation of collected data. Results: The results are presented by graphs both in the text of this work and in attachment for its large size. The results of all probands are presented in summary graphs and for selected values the degree of association is calculated in tables using the Pearson correlation coefficient. The main result is the confirmation of the reduction of the deviation from the horizontal position when comparing the slow and higher swimming speeds of both flutter and frog kick. The most effective way for a diver to overcome 50 meters below the water surface was determined to be a flutter kick at medium speed (average 0,37 m/s). Keywords: scuba diving, body position, head position, air consumption, speed of swimming, flutter...
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Evaluation of head position - children with idiopathic scoliosis
Dvořáčková, Štěpánka ; Kučerová, Klára (advisor) ; Šafářová, Marcela (referee)
Idiopathic scolios (IS) is one of the most common structural spinal deformities. Patients with idiopathic scoliosis have altered posture due to scoliosis. The aim od the study was to evaluate the position of the head in children with IS and to compare the results with a control group of healthy children. The position of the head was evaluated by the method of kinematic analysis from digital photographs, where we compared the coronal head tilt and the coronal shoulder angle between the two groups. Furthermore, the measurement of the subjective visual vertical was pearformed using Bucekt metod. Both of these measurements were performed in 10 children with IS (age 12,2 ± 2,4, mean ± SD; Cobb angle 14,9˚ ± 8,8˚ SD) and the group od 10 healthy children (age 13,9 ± 2,5). Based on these measurements, we evaluated three hypotheses. We came to the conclusion that both groups have comparable average deviations from the central position of the head and shoulders, but in the group with IS there was higher variance of values. In the group with IS, in seven patients the sides of the SVV tilt and the head tilt do not match.
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Dependence oftheair consumption and thepositionofthe body on theselectedmethodofdivingkick and swimming speed
Ehl, Sebastian ; Vondrášek, David (advisor) ; Bačáková, Radka (referee)
Title: Dependence of the air consumption and the position of the body on the selected method of diving kick and swimming speed Objectives: The goal of this work is to find out the relationship between the diver's swimming speed and the air consumption while using two different methods of diving kicks - flutter and frog kick. At the same time, assess the dependence of the position of the body and head on the swimming speed and method of diving kicks. Methods: In this work was used method of collecting data in real conditions by measuring devices and statistical evaluation of collected data. Results: The results are presented by graphs both in the text of this work and in attachment for its large size. The results of all probands are presented in summary graphs and for selected values the degree of association is calculated in tables using the Pearson correlation coefficient. The main result is the confirmation of the reduction of the deviation from the horizontal position when comparing the slow and higher swimming speeds of both flutter and frog kick. The most effective way for a diver to overcome 50 meters below the water surface was determined to be a flutter kick at medium speed (average 0,37 m/s). Keywords: scuba diving, body position, head position, air consumption, speed of swimming, flutter...
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Visual head motion monitoring
Sieber, Lukáš ; Babinec, Tomáš (referee) ; Richter, Miloslav (advisor)
This bachelor thesis is based on finding of head rotation and position against stationary shoulders from frames captured by web camera in real time. Furthermore the thesis adverts to benefits of using Open CV. It is also included some Open CV function overview, such as optical flow, 3D-2D points corresponding calculation and among others operations with rotation matrix. The end of this thesis provides outcomes evaluation and future work proposals.
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Visual head motion monitoring
Sieber, Lukáš ; Babinec, Tomáš (referee) ; Richter, Miloslav (advisor)
This bachelor thesis is based on finding of head rotation and position against stationary shoulders from frames captured by web camera in real time. Furthermore the thesis adverts to benefits of using Open CV. It is also included some Open CV function overview, such as optical flow, 3D-2D points corresponding calculation and among others operations with rotation matrix. The end of this thesis provides outcomes evaluation and future work proposals.
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