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Salient point is an important point feature in the content-based image retrieval. A novel image retrieval based on salient point is proposed in this paper. Firstly, an improved algorithm is presented based on SPARSE(Salient Points Auto-Reduction using Segmentation), which using dynamic threshold segmentation algorithm in the between-class variance and within-class variance of the image segmentation...
Color image retrieval based on histogram is analyzed and a novel method is proposed based on the image edge information. Firstly, the image edge is extracted by the use of the color vector angles because of its character which is insensitive to illumination but sensitive to hue and saturation. Then, the color vector angle histogram of the image edge is constructed to describe the image feature. With...
In order to improve the efficiency of video information storage of the video surveillance system, this paper proposes a mechanism based on buffer and anomaly detection algorithm for video storage. The algorithm uses anomaly detection mechanism, only stored anomaly video, and uses buffer mechanism to completely store exception video information. Compared with the current algorithm, while maintaining...
An algorithm for intrusion detection based on improved evolutionary semi- supervised fuzzy clustering is proposed which is suited for situation that gaining labeled data is more difficulty than unlabeled data in intrusion detection systems. The algorithm requires a small number of labeled data only and a large number of unlabeled data and class labels information provided by labeled data is used to...
In this article, we put forward a new method of designment of the automatic tracking system of solar energy based on one-chip computer and self-sufficient power. The method uses silicon photo-cell and store electricity equipments as power; Machinery rotary actuator adjusts the direction of solar panel automatically according to the direction of the sunlight, follows the sun automatically and improves...
Problem-Based Learning is a way which centres on students' self-educated learning and questionspsila researching. With the development of the network technology, the learning pattern of the network Problem-Based Learning becomes more and more popular. To build a series of network learning platform of education technology which have powerful function, has put forward some new requirements. The article...
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