A method for real-time implementation of HOG feature extraction

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 光电信息技术研究室

	A method for real-time implementation of HOG feature extraction
	Luo HB(罗海波); Yu XR(余新荣); Liu HM(刘红梅); Ding QH(丁庆海)
	2011
会议名称	4th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Advances in Infrared Imaging and Applications
会议日期	May 24-26, 2011
会议地点	Beijing, China
关键词	histogram of oriented gradient (HOG) feature extraction real-time implementation parallel pipeline
页码	7 pp.
中文摘要	Histogram of oriented gradient ( HOG) is an efficient feature extraction scheme, and HOG descriptors are feature descriptors which is widely used in computer vision and image processing for the purpose of biometrics, target tracking, automatic target detection(ATD) and automatic target recognition(ATR) etc. However, computation of HOG feature extraction is unsuitable for hardware implementation since it includes complicated operations. In this paper, the optimal design method and theory frame for real-time HOG feature extraction based on FPGA were proposed. The main principle is as follows: firstly, the parallel gradient computing unit circuit based on parallel pipeline structure was designed. Secondly, the calculation of arctangent and square root operation was simplified. Finally, a histogram generator based on parallel pipeline structure was designed to calculate the histogram of each sub-region. Experimental results showed that the HOG extraction can be implemented in a pixel period by these computing units.
收录类别	EI ; CPCI（ISTP）
产权排序	1
会议主办者	Chinese Soc Astronaut, Photoelect Technol Profess Comm, CSA, Tianjin Jinhang Inst Tech Phys, CASIC, Sci & Technol Low Light Level Night Vis Lab
会议录	INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: ADVANCES IN INFRARED IMAGING AND APPLICATIONS
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	BELLINGHAM
语种	英语
ISSN号	0277-786X
ISBN号	978-0-81948-834-3
WOS记录号	WOS:000297573900001
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/7943]
专题	沈阳自动化研究所_光电信息技术研究室
推荐引用方式 GB/T 7714	Luo HB,Yu XR,Liu HM,et al. A method for real-time implementation of HOG feature extraction[C]. 见:4th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Advances in Infrared Imaging and Applications. Beijing, China. May 24-26, 2011.