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An iris recognition requires parametric modeling texture. The extracted model should characterize the individual corresponding to considered iris. Such a model is often referred to as biometric signature. Several approaches to uniquely specify an iris by extracting parameters characteristic of its texture exist in the literature. An original approach based on an analysis by the Meyer wavelet of the...
In data processing, merging of data requires definition of conflict degree between source information in order to select the appropriate merging operator. The diversity of merging operators and the variability of information precision and source reliability generate great difficulty in the selection of the appropriate merging operator. Possibility theory and Dempster Shafer (DS) theory are two main...
The process of staircases detection and recognition is complex for blinds. Therefore, an intelligent and real time system is required to help them. In this paper, we investigate using only one ultrasonic sensor and few samples with small size to represent floor and staircases. The performance of such system depend on object representation, data modeling and finally classification algorithm. A simple...
The process of staircase negotiation is complex for blinds. Therefore, an intelligent system is required to help them. In this paper, we investigate using only one ultrasonic sensor to detect and recognize floor and stair cases in electronic white cane. The performance of an object recognition system depends on both object representation and classification algorithms. In our system, we have used more...
In this paper, we describe a new electronic white cane for visually impaired people. Our device may enable blind individuals to see the world with their ears. In fact, we used different types of sensors to detect and recognize obstacles. Our choice of sensors is based not only on system requirement but also on technology cost. Accordingly, we used two ultrasonic sensors and one monocular camera. With...
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