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High precision localization for profiled extended object based on GHT
Hu, Jinlong1,2; Peng, Xianrong1; Hu, J. (hujinlong.1988@163.com)
Source PublicationOptik
Volume125Issue:3Pages:1297-1302
2014
Language英语
ISSN00304026
DOI10.1016/j.ijleo.2013.08.017
Indexed BySCI ; Ei
WOS IDWOS:000329377400088
Subtype期刊论文
AbstractA high precision localization scheme for profiled extended objects based-on Generalized Hough Transform (GHT) is proposed. The proposed localization scheme utilizes the edge points' gratitude orientations of profiled extended objects to build an R-table in frame t-1. When frame t is coming, we search the R-table according to the pre-computed edge points' gratitude orientations of profiled extended objects in current frame, generating an accumulator array. The coordination corresponding to the accumulator's peak value is regarded as coarse localization point in current frame. Then, a relaxation iteration method is proposed to refine the coarse localization point to obtain a sub-pixel localization point. Numerical experiments show that the localization scheme has following characteristics: high-precision and stability. Furthermore, we present the results of our work which involves investigation of the performance evaluation for the proposed localization scheme. © 2013 Elsevier GmbH.; A high precision localization scheme for profiled extended objects based-on Generalized Hough Transform (GHT) is proposed. The proposed localization scheme utilizes the edge points' gratitude orientations of profiled extended objects to build an R-table in frame t-1. When frame t is coming, we search the R-table according to the pre-computed edge points' gratitude orientations of profiled extended objects in current frame, generating an accumulator array. The coordination corresponding to the accumulator's peak value is regarded as coarse localization point in current frame. Then, a relaxation iteration method is proposed to refine the coarse localization point to obtain a sub-pixel localization point. Numerical experiments show that the localization scheme has following characteristics: high-precision and stability. Furthermore, we present the results of our work which involves investigation of the performance evaluation for the proposed localization scheme. © 2013 Elsevier GmbH.
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/5075
Collection光电探测与信号处理研究室(五室)
Corresponding AuthorHu, J. (hujinlong.1988@163.com)
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Recommended Citation
GB/T 7714
Hu, Jinlong,Peng, Xianrong,Hu, J. . High precision localization for profiled extended object based on GHT[J]. Optik,2014,125(3):1297-1302.
APA Hu, Jinlong,Peng, Xianrong,&Hu, J. .(2014).High precision localization for profiled extended object based on GHT.Optik,125(3),1297-1302.
MLA Hu, Jinlong,et al."High precision localization for profiled extended object based on GHT".Optik 125.3(2014):1297-1302.
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