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Classification for Glass Bottles Based on Improved Selective Search Algorithm
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作者 Shuqiang Guo Baohai Yue +2 位作者 Manyang Gao Xinxin Zhou Bo Wang 《Computers, Materials & Continua》 SCIE EI 2020年第7期233-251,共19页
The recycling of glass bottles can reduce the consumption of resources and contribute to environmental protection.At present,the classification of recycled glass bottles is difficult due to the many differences in spe... The recycling of glass bottles can reduce the consumption of resources and contribute to environmental protection.At present,the classification of recycled glass bottles is difficult due to the many differences in specifications and models.This paper proposes a classification algorithm for glass bottles that is divided into two stages,namely the extraction of candidate regions and the classification of classifiers.In the candidate region extraction stage,aiming at the problem of the large time overhead caused by the use of the SIFT(scale-invariant feature transform)descriptor in SS(selective search),an improved feature of HLSN(Haar-like based on SPP-Net)is proposed.An integral graph is introduced to accelerate the process of forming an HBSN vector,which overcomes the problem of repeated texture feature calculation in overlapping regions by SS.In the classification stage,the improved SS algorithm is used to extract target regions.The target regions are merged using a non-maximum suppression algorithm according to the classification scores of the respective regions,and the merged regions are classified using the trained classifier.Experiments demonstrate that,compared with the original SS,the improved SS algorithm increases the calculation speed by 13.8%,and its classification accuracy is 89.4%.Additionally,the classification algorithm for glass bottles has a certain resistance to noise. 展开更多
关键词 Classification of glass bottle HBSN feature improved selective search algorithm LightGBM
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基于UNet3+的伽马成像测井自动解释方法 被引量:1
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作者 沈楠 段友祥 +1 位作者 孙岐峰 李娜 《测井技术》 CAS 2022年第3期283-293,共11页
鉴于传统的伽马成像测井解释对地层轮廓的拾取往往依赖于人工解释或者解释软件辅助,存在工作量大、识别精度不高、效率低等问题,提出一种基于卷积神经网络UNet3+的伽马成像测井自动解释方法,实现伽马图像像素级分割,自动拾取地层轮廓,... 鉴于传统的伽马成像测井解释对地层轮廓的拾取往往依赖于人工解释或者解释软件辅助,存在工作量大、识别精度不高、效率低等问题,提出一种基于卷积神经网络UNet3+的伽马成像测井自动解释方法,实现伽马图像像素级分割,自动拾取地层轮廓,并采用非极大值抑制法细化地层轮廓,从而使地层轮廓更好地呈现出正弦构造,同时提高倾角计算的精度。在轮廓分割结果图中,采用Selective Search算法计算轮廓拟合区域,生成目标轮廓候选框,在候选框内拟合地层轮廓点并进行倾角计算。通过在实际伽马成像测井资料上进行实验,结果和分析表明,该方法可以有效提取出地层轮廓,保证伽马成像测井解释的准确率,提高解释工作效率,较好地满足实际生产应用需求。 展开更多
关键词 测井解释 伽马成像测井 UNet3+ 轮廓细化 selective search算法
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Object Recognition Algorithm Based on an Improved Convolutional Neural Network
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作者 Zheyi Fan Yu Song Wei Li 《Journal of Beijing Institute of Technology》 EI CAS 2020年第2期139-145,共7页
In order to accomplish the task of object recognition in natural scenes,a new object recognition algorithm based on an improved convolutional neural network(CNN)is proposed.First,candidate object windows are extracted... In order to accomplish the task of object recognition in natural scenes,a new object recognition algorithm based on an improved convolutional neural network(CNN)is proposed.First,candidate object windows are extracted from the original image.Then,candidate object windows are input into the improved CNN model to obtain deep features.Finally,the deep features are input into the Softmax and the confidence scores of classes are obtained.The candidate object window with the highest confidence score is selected as the object recognition result.Based on AlexNet,Inception V1 is introduced into the improved CNN and the fully connected layer is replaced by the average pooling layer,which widens the network and deepens the network at the same time.Experimental results show that the improved object recognition algorithm can obtain better recognition results in multiple natural scene images,and has a higher degree of accuracy than the classical algorithms in the field of object recognition. 展开更多
关键词 object recognition selective search algorithm improved convolutional neural network(CNN)
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