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浏览/检索结果: 共5条，第1-5条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Automated visual inspection of multipattern train components using gradient information and feature fusion under the illumination-variant condition 期刊论文 PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT, 2018, 卷号: 232, 页码: 1500-1513 作者:  Nan, Guo;  Gao, Yang 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/30 Visual inspection system  brake beam bolt  illumination-variant condition  gradient information descriptor  feature fusion   Face Image Hallucination Under Illumination Variation 期刊论文 Journal of Computational and Theoretical Nanoscience, 2014, 卷号: Vol.11 No.11, 页码: 2251-2257 作者:  Gong, Mei;  He, Kun 收藏  |  浏览/下载：5/0  |  提交时间：2019/03/01 FACE  HALLUCINATION  KERNEL  PRINCIPAL  COMPONENT  ANALYSIS  NONSUBSAMPLED  CONTOURLET  TRANSFORM  SPARSE  REPRESENTATION  SUPER-RESOLUTION  VARIANT  ILLUMINATION   Face Recognition Based On Total Variation And Sparse Representation 期刊论文 INFORMATION-AN INTERNATIONAL INTERDISCIPLINARY JOURNAL, 2012, 卷号: 15, 期号: 11A,SI, 页码: 4597-4602 作者:  Li, Kunlun[1];  Zhang, Guoyan[2] 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/21 Face recognition  Variant illumination  Total variation  Retinex theory  Sparse representation   Research on radiometric calibration of interline transfer CCD camera based on TDI working mode (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China Wu X.-X.; Liu J.-G. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 Interline transfer CCD camera can be designed to work in time delay and integration mode similar to TDI CCD to obtain higher responsivity and spatial resolution under poor illumination condition. However it was found that outputs of some pixels were much lower than others' as interline transfer CCD camera work in TDI mode in laboratory radiometric calibration experiments. As a result photo response non-uniformity(PRNU) and signal noise ratio(SNR) of the system turned for the worse. This phenomenon's mechanism was analyzed and improved PRNU and SNR algorithms of interline transfer CCD camera were advanced to solve this problem. In this way TDI stage was used as a variant in PRNU and SNR algorithms and system performance was improved observably with few influences on use. In validation experiments the improved algorithms was applied in radiometric calibration of a camera with KAI-0340s as detector. Results of validation experiments proved that the improved algorithms could effectively improve SNR and lower PRNU of the system. At the same time characteristic of the system could be reflected better. As working in 16 TDI stages  PRUN was reduced from 2.25% to 0.82% and SNR was improved about 2%. 2010 Copyright SPIE - The International Society for Optical Engineering.   The CAS-PEAL large-scale Chinese face database and baseline evaluations 期刊论文 ieee transactions on systems man and cybernetics part a systems and humans, 2008 Gao, Wen; Cao, Bo; Shan, Shiguang; Chen, Xilin; Zhou, Delong; Zhang, Xiaohua; Zhao, Debin 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/12 accessory  evaluation protocol  expression  face databases  face recognition  lighting  pose  EXPRESSION VARIANT FACES  RECOGNITION ALGORITHMS  OBJECT RECOGNITION  IMAGE  ILLUMINATION  CLASSIFICATION  IDENTIFICATION  MODEL  POSE