Determination of the most effective human body regions for activity recognition

Abstract

Monitoring daily activities and providing feedback from life activities performed can prevent many diseases and improve the quality of life of individuals. In the academic studies carried out, it was evaluated that the data obtained from a single sensor placed on the chest was used to define the resultant activity using various complex algorithms. In this study, the most effective body regions were identified for activity identification. For this purpose, total of four accelerometers were placed in the chest, shoulder, limb and arm regions. Data sets were collected for different activities including walking, running, jumping, and sit-to-stand. The performances of artificial neural networks were examined using single or multi-sensor data sets for activity recognition. The results show that using multi-sensor in effective parts has more positive impact on neural network performance.

Keywords

• Daily activities,classification,artificial neural networks,accelerometer

Aktivite tanımlama için en etkin vücut bölgelerinin belirlenmesi

Abstract

Günlük aktivitelerin izlenmesi ve gerçekleştirilen yaşam aktivitelerinden geri bildirim sağlanması birçok hastalığı önleyebilir ve bireylerin yaşam kalitesini yükseltir. Gerçekleştirilen akademik çalışmalarda genellikle göğüs üzerine yerleştirilen tek bir sensörden elde edilen verilerin çeşitli kompleks algoritmalarla kullanılması sonucu aktivite tanımlaması yapıldığı değerlendirilmiştir. Bu çalışmada ise aktivite tanımlama için en efektif vücut bölgeleri belirlenmiştir. Bu amaçla, toplamda dört ivme sensörü göğüs, omuz, bacak ve kol bölgelerine yerleştirilmiştir. Yürüme, koşma, zıplama ve oturma-kalkma aktiviteleri süresince veriler toplandı. Tekli ve çoklu sensör verileri ile kullanılmasının aktivite tanımlama için yapay sinir ağları performansına etkisi incelenmiştir. Sonuçlar etkin bölgelerde çoklu sayıda sensör kullanmanın performansa daha olumlu yansıdığını ortaya çıkarmıştır.

Keywords

• Günlük aktiviteler,sınıflandırma,yapay sinir ağları,ivme sensörü

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