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基于卷积神经网络的运动车辆视频检测方法
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摘要
运动车辆的检测现已采用视频检测技术,然而传统的高斯混合模型检测算法对背景环境过于敏感,光照变化、树叶的扰动都可能误检为运动车辆。为此,文中在介绍高斯混合模型建模、卷积神经网络的机理基础上,提出了一种高斯混合模型与卷积神经网络(CNN)结合的运动车辆检测方法:采用高斯混合模型对运动目标进行检测,通过车辆样本空间训练卷积神经网络模型,再用卷积神经网络对所检测出的运动区域目标特征提取,以区分出车或非车。经实际道路视频测试表明:与常用的稀疏编码(SC)和尺度不变特征转换(SIFT)特征提取方法相比,该算法的运动车辆检测的准确率分别提高了3.6%和7.9%。
Moving vehicle detection use video technology now,however,the traditional Gaussian Mixture Model(GMM) is sensitive to background environment,illumination changes and leaves disturbance may be lead to error detection.For this,the paper introduces the mechanism of the GMM and convolution neural network(CNN),and then purposed a vehicle detection method of GMM combined with CNN.Using GMM to detecting the moving object,training the CNN model through the vehicle sample spaces,then using CNN to extract feature from the detected moving object and classify to vehicle or nonvehicle.The experiment show that:this method can efficiently improve the accuracy of vehicle detection 3.6%and 6.9%,compared to common sparse code(SC) and SIFT methods,respectively.
引文
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