Dienst van SURF
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People counting is a challenging task with many applications. We propose a method with a fixed stereo camera that is based on projecting a template onto the depth image. The method was tested on a challenging outdoor dataset with good results and runs in real time.
In this paper we propose a head detection method using range data from a stereo camera. The method is based on a technique that has been introduced in the domain of voxel data. For application in stereo cameras, the technique is extended (1) to be applicable to stereo data, and (2) to be robust with regard to noise and variation in environmental settings. The method consists of foreground selection, head detection, and blob separation, and, to improve results in case of misdetections, incorporates a means for people tracking. It is tested in experiments with actual stereo data, gathered from three distinct real-life scenarios. Experimental results show that the proposed method performs well in terms of both precision and recall. In addition, the method was shown to perform well in highly crowded situations. From our results, we may conclude that the proposed method provides a strong basis for head detection in applications that utilise stereo cameras.
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Stichting Natuurlijk Genieten is a Dutch foundation, founded by Jeannette Bolck, and dedicated to stimulating the development of a more natural living environment for older people living permanently in residential care centres. Many older people, in particular with Alzheimer's, are dependent on activities and facilities, in or in the immediate surroundings, of these centres. Over the past decade Natuurlijk Genieten has taken many initiatives to bring back nature into the daily lives of older people and their carers. In this article these activities are reviewed.