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The synchronization problems of networks of coupled harmonic oscillators are addressed by the edge event-triggered approach in this paper. The network dynamics with respect to edge states are presented and a new edge event-triggered control protocol is designed. Combined with the periodic event-detecting and edge event-triggered approach, sufficient conditions that guarantee the synchronization of...
This paper focuses on the synchronization of coupled harmonic oscillators based on edge-event-triggered control. With periodic event detection and quantization, an edge-event-detecting algorithm is developed to determine the event times of each oscillator. In the proposed protocol, only relative state information is utilized to update all controllers, and the edge events are asynchronous with respect...
To make up the defect of conventional image edge detection methods which don't make full use of color image information, this paper puts forward a color image edge extraction algorithm based on wavelet multi-scale, where the image edges are extracted via the following two steps: firstly polishing the three components R, G, B by wavelet multi-scale features template; then preceding vector extended...
To the problem of the existing multi-scale edge detection methods couldn't tackle de-noising and edge detail preservation of images, the article proposed a multi-scale edge detection algorithm which took soft threshold method to implement detail enhancement and noise reduction of the true color image. Firstly, obtaining the true color images at different scales through wavelet multi-scale edge detection...
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