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基于计算机视觉的手语识别技术可以为聋校的双语教学带来很大的便利,而手语识别技术的难点之一在于视频关键帧的提取.根据手语视频关键帧的特点和手语者的手语习惯,提出了一种面向手语识别的视频关键帧提取和优化算法.首先利用卷积自编码器提取视频帧的深度特征,对其进行K-means聚类,在每类视频帧中采用清晰度筛选取出最清晰的视频帧... 相似文献
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A new reinforcement method for learning fuzzy logiccontrollers is proposed.The reinforcement learningscheme is composed of two fuzzy logic rule bases:oneacts as an adaptive critic,the other server as a control-ler.The proposed method is tested on the cart-pole sys-tem.Simulation results show that the method has betterlearning performance than Anderson's neural network-based method. 相似文献
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The realizing of Artificial Neural Network(ANN) in Distributed Control System (DCS) is discussed. The model of ANN designed can be called as easily as conventional algorithm. It can act as an ANN controller or as an identifier in adaptive control system. 相似文献
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Memory chain is observed in a chaotic autoassociative neural network. The network recalls first stored pattern from a fragment of a memory, stays at this pattern for a while, transits to the second stored pattern that overlaps with the first recalled pattern.Then it stays at the second recalled pattern for a while, transits to the third stored pattern that overlaps with the second recalled pattern, and so on. Thus a memory chain is generated. The memory chain ends with the pattern that overlaps no other stored patten. This phenomenon is similar to the way of recalling process of human beings in some respects. 相似文献
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针对传统神经网络在搜索NP类问题的解时易陷于局部最优点的不足,提出了一种基于改进型能量函数(IEF)和瞬态混沌神经网络(TCNN)的优化模型,将此应用于旅行商问题(TSP)的求解,并和传统神经网络优化方法进行了比较。仿真研究结果表明,该论文所提出的方法在解的可行性以及全局最优解的获取能力方面都有很大优势,收敛速度和准确度也令人满意。 相似文献
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IntroductionArtificial neural networks can be dividedintotwo classes :rate code neural networks and pulse-based neural networks .Inrate code neural networks the outputs of the neurons arecontinuous , whereas in pulse-based neural networks theneurons emit pulses . Although rate code neural models havebeen well studied, researchers continue to find the evidencerecently that in many cases the brain may accomplishcomputations on pulses(action potential) . Great effort hasbeen devoted towards the a… 相似文献
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A new method for image segmentation based on pulse neural network is proposed. Every neuron in the network represents one pixel in the image and the network is locally connected. Each group of the neurons that correspond to each object synchronizes while different groups of the neurons oscillate at different period. Applying this period difference, different objects are divided. In addition to simulation, an analysis of the mechanism of the method is presented in this paper. 相似文献
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本文对一种新的搜索算法——基因算法进行了基本研究。基因算法是对自然界生物进化的一种模仿,它包含三个基本的算子:再生、交叉和变异。本文对基因算法的过程作了描述,并对其参数设计进行了简单的定性分析。最后还将基因算法用于一维、二维和三维的函数寻优,给出了许多试验的结果。 相似文献
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