Search results for "liikkeentunnistus"
showing 5 items of 5 documents
Reliability and concurrent validity of spatiotemporal stride characteristics measured with an ankle-worn sensor among older individuals
2019
Background. Wearable inertial sensors have been shown to provide valid mean gait characteristics assessments, however, assessment of variability is less convincingly established. Research question. What level of concurrent validity, and session-to-session reliability does an ankle-worn inertial measurement unit (IMU)-based gait assessment with a novel angular velocity-based gait event detection algorithm have among older adults? Methods. Twenty seven (women N = 17) participants volunteered (age 74.4 (SD 4.3) years, body mass 74.5 (12.0) kg, height 165.9 (9.9) cm). Right leg stance, swing, and stride duration and stride length, and stride velocity were concurrently assessed with motion captu…
Dog behaviour classification with movement sensors placed on the harness and the collar
2021
Dog owners’ understanding of the daily behaviour of their dogs may be enhanced by movement measurements that can detect repeatable dog behaviour, such as levels of daily activity and rest as well as their changes. The aim of this study was to evaluate the performance of supervised machine learning methods utilising accelerometer and gyroscope data provided by wearable movement sensors in classification of seven typical dog activities in a semi-controlled test situation. Forty-five middle to large sized dogs participated in the study. Two sensor devices were attached to each dog, one on the back of the dog in a harness and one on the neck collar. Altogether 54 features were extracted from th…
Me, you and the dance : effects of individual differences and social context on music-induced movement
2018
To dance is usually to dance with someone else. Dance often takes place in social contexts such as a club or party, where individuals’ movements not only reflect their own traits and feelings but can the movements of others in many ways. The aim of this thesis is to study some of the factors that may affect music-induced movement in social contexts, particularly trait empathy. The thesis also aims to investigate the influence of inherently dyadic features, such as similarity between dance partners, and to explore how entrainment and interaction can be quantified in a free dance movement context using a variety of analytic approaches. A first analysis of individual dance data from 30 partici…
Emotions and Activity Recognition System Using Wearable Device Sensors
2021
Nowadays machines have become extremely smart, there are a lot of existing services that seemed to be unexpectable and futuristic decades or even a few years ago. However, artificial intelligence is still far from human intelligence, machines do not have feelings, consciousness, and intuition. How can we help machines to learn about human feelings and understand their needs better? People take their devices wherever they go, what can devices tell us about their owners? Personal preferences and needs are dependent on emotional and situational contexts. Therefore, emotional and activity aware gadgets would be more intuitive and provide more appropriate information to users. Contemporary weara…
Kinectin käyttö ympäristön- ja liikkeentunnistukseen
2012
Vilhunen, Eetu Kinectin käyttö ympäristön- ja liikkeentunnistukseen Jyväskylä: Jyväskylän yliopisto, 2012. Tietojärjestelmätiede, Kandidaatin -tutkielma Ohjaaja(t): Eskelinen , Matti Tämän tutkielman tarkoituksena on käsitellä Microsoftin kehittämää Kinect -sensoria ja sen hyödyntämistä ympäristön- ja liikkeentunnistukseen. Tutkimus pyrkii vastaamaan siihen, miten Kinectiä voidaan hyödyntää ympäristön- ja liikkeentunnistuksessa, sekä siihen mitä hyötyä tai haittaa Kinectin käytöstä voi olla. Aluksi käydään läpi hieman Kinectin historiaa sekä sen sisältämää teknologiaa. Tämän jälkeen käydään läpi tutkielman kannalta oleelliset konenäköön liittyvät termit. Tutkielman aikana käydään myös läpi …