Vision Based Referee Sign Language Recognition System for the RoboCup MSL League

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2014

Autores

trigueiros, p (Autor) Outra; ribeiro, fr (Autor) Outra; reis, lp (Autor) FCUP

Ata de Conferência Internacional

Título: RoboCup 2013: Robot World Cup XVII

Páginas: 360-372

17th International Symposium on Robot World Cup (RoboCup)

Eindhoven, NETHERLANDS, JUN 24-JUL 01, 2013

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-009-QVB

DOI: 10.1007/978-3-662-44468-9_32

Abstract (EN): In RoboCup Middle Size league (MSL) the main referee uses assisting technology, controlled by a second referee, to support him, in particular for conveying referee decisions for robot players with the help of a wireless communication system. In this paper a vision-based system is introduced, able to interpret dynamic and static gestures of the referee, thus eliminating the need for a second one. The referee's gestures are interpreted by the system and sent directly to the Referee Box, which sends the proper commands to the robots. The system is divided into four modules: a real time hand tracking and feature extraction, a SVM (Support Vector Machine) for static hand posture identification, an HMM (Hidden Markov Model) for dynamic unistroke hand gesture recognition, and a FSM (Finite State Machine) to control the various system states transitions. The experimental results showed that the system works very reliably, being able to recognize the combination of gestures and hand postures in real-time. For the hand posture recognition, with the SVM model trained with the selected features, an accuracy of 98,2% was achieved. Also, the system has many advantages over the current implemented one, like avoiding the necessity of a second referee, working on noisy environments, working on wireless jammed situations. This system is easy to implement and train and may be an inexpensive solution.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13