Stepless digital zoom for high definition camera | |
Guo, Huinan1; Fang, Yao1; Liu, Qing1; Zhang, Hui1; Ma, Nan2; Duan, Baosong3 | |
2016 | |
会议名称 | 8th international conference on digital image processing, icdip 2016 |
会议日期 | 2016-05-20 |
会议地点 | chengu, china |
关键词 | Computational complexity Computer graphics Digital cameras Image segmentation Monitoring Multimedia systems Optical data processing Security systems Space surveillance Video cameras |
卷号 | 10033 |
英文摘要 | real-time full frame view of surveillance camera provides integral visual information of scene. high definition imaging and zooming are widely adopted when observers want to capture more detail information of targets. the optical zooming can provide high zoom ratio detail images of target as well as maintain imaging definition, however, it fails to obtain full view of scene when zoomed, and the field of observation decreases to region of target. digital zooming is an effective approach to keep the balance between imaging field and visual detail information. this paper presents a method of stepless zooming for digital video camera which could be widely used in autonomous pan, tilt and zoom surveillance system. in view of hardware resources and algorithm realizability, an optimized zooming processing structure is proposed. according to input zoom ratio parameter, it can extract pixels of region of interest adaptively and display with original imaging size by mapping and interpolation algorithms. experimental results indicate that the stepless zooming method can be capable of achieving 1080p high definition imaging and 30 frame/s video capture. © 2016 spie. |
收录类别 | EI ; ISTP |
产权排序 | 1 |
会议录 | eighth international conference on digital image processing, icdip 2016 |
会议录出版者 | spie |
学科主题 | space research ; computer theory, includes formal logic, automata theory, switching theory, programming theory ; data processing and image processing ; computer applications ; photographic equipment ; accidents and accident prevention |
语种 | 英语 |
ISSN号 | 0277786x |
ISBN号 | 9781510605039 |
内容类型 | 会议论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/28509] |
专题 | 西安光学精密机械研究所_动态光学成像研究室 |
作者单位 | 1.Xi'An Institute of Optics and Precision Mechanics of CAS, No.17, Xinxi Rd, Xi'an, Shaanxi, China 2.People's Liberation Army of No.95879, Chengdu, Sichuan, China 3.Xi'An Communications Institute, No.5, Guangming Rd, Changan district, Xi'an, Shaanxi, China |
推荐引用方式 GB/T 7714 | Guo, Huinan,Fang, Yao,Liu, Qing,et al. Stepless digital zoom for high definition camera[C]. 见:8th international conference on digital image processing, icdip 2016. chengu, china. 2016-05-20. |
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