Decision method choice in a human posture recognition context
This work addresses a specific bottleneck in fuzzy data fusion for posture recognition, offering an incremental improvement tailored to domain-specific applications.
The paper tackles the problem of selecting a defuzzification method in human posture recognition by proposing an approach driven by user constraints like confidence or accuracy, and demonstrates it in a practical experiment using a depth camera for human-robot communication.
Human posture recognition provides a dynamic field that has produced many methods. Using fuzzy subsets based data fusion methods to aggregate the results given by different types of recognition processes is a convenient way to improve recognition methods. Nevertheless, choosing a defuzzification method to imple-ment the decision is a crucial point of this approach. The goal of this paper is to present an approach where the choice of the defuzzification method is driven by the constraints of the final data user, which are expressed as limitations on indica-tors like confidence or accuracy. A practical experimentation illustrating this ap-proach is presented: from a depth camera sensor, human posture is interpreted and the defuzzification method is selected in accordance with the constraints of the final information consumer. The paper illustrates the interest of the approach in a context of postures based human robot communication.