The purpose of the current study was to determine the validity and reliability of an inertial sensor for assessing speed specific to athletes competing in the wheelchair court sports (basketball, rugby, and tennis). A wireless inertial sensor was attached to the axle of a sports wheelchair. Over two separate sessions, the sensor was tested across a range of treadmill speeds reflective of the co...

The system for analysis of player motion during sport matches, developed at University of Ljubljana is presented. The system allows for non-intrusive measurement of positions of all players in indoor sports through whole match, using only inexpensive video equipment cameras mounted on the ceiling of the sports hall. Tracking process (obtaining trajectories from videos) is automatic and only sup...

In the modern world mobile robots are being utilized for many tasks that are either hazardous or unpleasant for human beings. The potential of robots to assume such tasks hinges on their ability to intelligently, efficiently, and reliably locate and interact with objects in their environment. This work focuses on the combination of intelligent sensor placement and a unique vision strategy (whic...

BACKGROUND Ankle ligamentous sprain is common in sports. The most direct way to study the mechanism quantitatively is to study real injury cases; however, it is unethical and impractical to produce an injury in the laboratory. A recently developed, model-based image-matching motion analysis technique allows quantitative analysis of real injury incidents captured in televised events and gives im...

BACKGROUND The tennis serve is a complex stroke characterized by a series of segmental rotations involving the entire kinetic chain. Many overhead athletes use a basic 6-stage throwing model; however, the tennis serve does provide some differences. EVIDENCE ACQUISITION To support the present 8-stage descriptive model, data were gathered from PubMed and SPORTDiscus databases using keywords ten...

Electronic Line Calling (ELC) is an auxiliary referee system used for tennis matches based on binocular vision technology. While ELC has been widely used, there are still many problems, such as complex installation and maintenance, high cost etc. We propose a monocular technology method. The method the following steps: (1) locate ball’s trajectory. multistage ball positioning approach combining...