Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144005.0470

歹英杰 Dai Yingjie, 汪. W. Wei, 陈海龙 Chen Hailong, 栾军英 Luan Junying

引用次数: 0

Research on scene adaptive tracking feature selection 场景自适应跟踪特征选择研究

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144006.0551

付毅 Fu Yi, 吴泽民 Wu Zemin, 田畅 Tian Chang, 曾明勇 Zeng Mingyong, 揭斐然 Jie Feiran

{"title":"Research on scene adaptive tracking feature selection","authors":"付毅 Fu Yi, 吴泽民 Wu Zemin, 田畅 Tian Chang, 曾明勇 Zeng Mingyong, 揭斐然 Jie Feiran","doi":"10.3788/GXJS20144006.0551","DOIUrl":"https://doi.org/10.3788/GXJS20144006.0551","url":null,"abstract":"Video target tracking is a key issue in the field of computer vision.Based on the scene classification an online method for video target feature selection is proposed.During off-line,the modified spatial pyramid matching algorithm(NEW-SPM)is used to complete the sample-videos classification at first.And then the rough localization of target and background region is realized with TLD tracking algorithm,and the characteristics description the target and background is completed with different descriptors.After this,the feature distance between target and background is calculated through the form of log variance ratio.And finally,the fusion mean and entropy statistical analysis is carried out on the characteristics of distance for the saliency sorting of different descriptors.On this basis,the scenarios related characteristics saliency lists are constructed.Combining with the testing scenes judgment,the lists are applied to the on-line particle filter tracking system to select the best descriptor in the current category,and it is tested on the public library of tracking,the validity of the lists and the necessity of selection method are proven.","PeriodicalId":35591,"journal":{"name":"Guangxue Jishu/Optical Technique","volume":"40 1","pages":"551-559"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70266422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the optimization of the process parameters of the bonnet polishing the spherical optical parts 球面光学零件阀盖抛光工艺参数的优化研究

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144002.0099

宋剑锋 Song Jianfeng, 姚英学 Yao Yingxue, 谢大纲 Xie Dagang

引用次数: 0

A mosaic method of different ground resolution images 不同地面分辨率图像的拼接方法

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144004.0321

王. W. Jing, 方俊永 Fang Junyong, 刘学 Liu Xue, 肖. X. Qing

引用次数: 0

Comparative study on the thermo-induced nonlinear optical properties of metal-organic complexes 金属-有机配合物热致非线性光学性质的比较研究

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144004.0335

张鹏飞 Zhang Pengfei

引用次数: 0

A demodulation system and algorithm of FBG sensor based on DSP 基于DSP的光纤光栅传感器解调系统及解调算法

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144003.0269

元雁龙 Yuan Yanlong, 江. A. Yi, 池宪 Chi Xian

引用次数: 0

Motion blurred image blind restoration base on parameter estimation of PSF 基于PSF参数估计的运动模糊图像盲复原

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144003.0235

廖永忠 Liao Yong-zhong, 蔡自兴 Cai Zi-xing, 何湘华 He Xiang-hua

引用次数: 1

Study on controlled refractive index of optical thin films by PECVD PECVD控制光学薄膜折射率的研究

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144004.0353

薛. X. Jun, 杭凌侠 Hang Lingxia, 刘昊轩 Liu Haoxuan

引用次数: 1

Non-contact measurement method for thickness of optical element 光学元件厚度的非接触式测量方法

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144006.0535

梁海锋 Liang Haifen, 蔡沛峰 Cai Peifeng

{"title":"Non-contact measurement method for thickness of optical element","authors":"梁海锋 Liang Haifen, 蔡沛峰 Cai Peifeng","doi":"10.3788/GXJS20144006.0535","DOIUrl":"https://doi.org/10.3788/GXJS20144006.0535","url":null,"abstract":"In order to realize non-contact central thickness measurement of the optical elements,an non-contact measurement system is established based on the electrical-optical scanning technology.Continuous moving light points are acquired in the optical axis when annular light produced by electrically controlling the optical switch array crosses the axicon.When the optical element places in the middle of these continuous moving light points,the thickness of the optical elements can be evaluated by monitoring the reflective light energy because the reflective light energy can present a peak when one of light points coincides with a surface of optical element.The mathematics model for testing the thickness of parallel plane plate and lens central thickness are built respectively.The measurement range and accuracy are analyzed in theory.The results show that the measurement range for parallel plate element varies from 5507 mm to 26 mm with the cone angle of axicon increasing from 1°to 40°,its materials refractive index is 1.52 and its radius is 100 mm,and the minimum measurement accuracy can reach to 2.5μm with measurement range of 26 mm.It can satisfy the non-contact measurement requirements of the central thickness of the optical elements.","PeriodicalId":35591,"journal":{"name":"Guangxue Jishu/Optical Technique","volume":"40 1","pages":"535-538"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70266310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A peak location algorithm for the demodulation spectrum of fiber Bragg grating 光纤布拉格光栅解调频谱的峰值定位算法

Guangxue Jishu/Optical Technique Pub Date : 2014-01-01 DOI: 10.3788/GXJS20144001.0053

申雅峰 Shen Yafeng, 胡春艳 Hu Chunyan, 张. Z. Lei

引用次数: 0

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